Malware Analysis Report

2024-10-19 06:22

Sample ID 240831-ty1a6ateqj
Target 33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64
SHA256 33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64
Tags
cobaltstrike 0 100000 backdoor discovery trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64

Threat Level: Known bad

The file 33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64 was found to be: Known bad.

Malicious Activity Summary

cobaltstrike 0 100000 backdoor discovery trojan

Cobaltstrike

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

System Location Discovery: System Language Discovery

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-31 16:28

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-31 16:28

Reported

2024-08-31 16:31

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Public\Pictures\beacon.exe N/A
N/A N/A C:\Users\Public\Pictures\Navicat_Keygen_Patch_v6.3.2_By_DFoX.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64.exe

"C:\Users\Admin\AppData\Local\Temp\33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64.exe"

C:\Users\Public\Pictures\beacon.exe

"C:\Users\Public\Pictures\beacon.exe"

C:\Users\Public\Pictures\Navicat_Keygen_Patch_v6.3.2_By_DFoX.exe

"C:\Users\Public\Pictures\Navicat_Keygen_Patch_v6.3.2_By_DFoX.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
CN 120.26.241.224:52847 tcp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
CN 120.26.241.224:52847 tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

C:\Users\Public\Pictures\beacon.exe

MD5 e733d3f28db97dcda9a17678d31817cf
SHA1 740ebd1aacbb16784601bbee921d92a948be3e86
SHA256 28c745de667ae05f90a2631fdb1f3611e22de7ec4e16de5f6dc653b6fb3e7f3b
SHA512 829e336a3ec9357740f0170dc9867628235105c770af94889d51ac2740625a5f2ac4028594db806ca9ebcbc9d4e27ec0cb0661ca089a91cadda0f79eb4c89937

C:\Users\Public\Pictures\Navicat_Keygen_Patch_v6.3.2_By_DFoX.exe

MD5 973bc81880b01f493f786625a31b31eb
SHA1 18704e3406ef52e675ede908b5f8158d88ef5b0f
SHA256 6652a80a755644374bc38c4b99b8990e2288dbea593813d11852d40d2ce26c2d
SHA512 f3bce517bab0764fab0fa110479149b350e80841514a6096f5e48383ac60d7e7903b81fe8af8fc685ca13d3c94fdf85937331389fac943b2b6de5de3ac4a86b7

memory/2000-21-0x00007FFF2B383000-0x00007FFF2B385000-memory.dmp

memory/2000-22-0x0000000000300000-0x0000000000B86000-memory.dmp

memory/2000-23-0x000000001B900000-0x000000001BB84000-memory.dmp

memory/2000-24-0x00007FFF2B380000-0x00007FFF2BE41000-memory.dmp

memory/3092-25-0x0000000000770000-0x00000000007B1000-memory.dmp

memory/3092-26-0x00000000007C0000-0x000000000080F000-memory.dmp

memory/2000-27-0x00007FFF2B383000-0x00007FFF2B385000-memory.dmp

memory/3092-28-0x0000000000400000-0x000000000044E000-memory.dmp

memory/2000-29-0x00007FFF2B380000-0x00007FFF2BE41000-memory.dmp

memory/3092-30-0x00000000007C0000-0x000000000080F000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-31 16:28

Reported

2024-08-31 16:31

Platform

win7-20240708-en

Max time kernel

140s

Max time network

138s

Command Line

"C:\Users\Admin\AppData\Local\Temp\33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Public\Pictures\beacon.exe N/A
N/A N/A C:\Users\Public\Pictures\Navicat_Keygen_Patch_v6.3.2_By_DFoX.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2420 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64.exe C:\Users\Public\Pictures\beacon.exe
PID 2420 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64.exe C:\Users\Public\Pictures\beacon.exe
PID 2420 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64.exe C:\Users\Public\Pictures\beacon.exe
PID 2420 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64.exe C:\Users\Public\Pictures\beacon.exe
PID 2420 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64.exe C:\Users\Public\Pictures\Navicat_Keygen_Patch_v6.3.2_By_DFoX.exe
PID 2420 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64.exe C:\Users\Public\Pictures\Navicat_Keygen_Patch_v6.3.2_By_DFoX.exe
PID 2420 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64.exe C:\Users\Public\Pictures\Navicat_Keygen_Patch_v6.3.2_By_DFoX.exe
PID 2420 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64.exe C:\Users\Public\Pictures\Navicat_Keygen_Patch_v6.3.2_By_DFoX.exe

Processes

C:\Users\Admin\AppData\Local\Temp\33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64.exe

"C:\Users\Admin\AppData\Local\Temp\33988f6852a9c11377d2b0439a5a12d8d515f0d5031629b3eeceff3ea86aae64.exe"

C:\Users\Public\Pictures\beacon.exe

"C:\Users\Public\Pictures\beacon.exe"

C:\Users\Public\Pictures\Navicat_Keygen_Patch_v6.3.2_By_DFoX.exe

"C:\Users\Public\Pictures\Navicat_Keygen_Patch_v6.3.2_By_DFoX.exe"

Network

Country Destination Domain Proto
CN 120.26.241.224:52847 tcp
CN 120.26.241.224:52847 tcp
CN 120.26.241.224:52847 tcp
CN 120.26.241.224:52847 tcp

Files

\Users\Public\Pictures\beacon.exe

MD5 e733d3f28db97dcda9a17678d31817cf
SHA1 740ebd1aacbb16784601bbee921d92a948be3e86
SHA256 28c745de667ae05f90a2631fdb1f3611e22de7ec4e16de5f6dc653b6fb3e7f3b
SHA512 829e336a3ec9357740f0170dc9867628235105c770af94889d51ac2740625a5f2ac4028594db806ca9ebcbc9d4e27ec0cb0661ca089a91cadda0f79eb4c89937

\Users\Public\Pictures\Navicat_Keygen_Patch_v6.3.2_By_DFoX.exe

MD5 973bc81880b01f493f786625a31b31eb
SHA1 18704e3406ef52e675ede908b5f8158d88ef5b0f
SHA256 6652a80a755644374bc38c4b99b8990e2288dbea593813d11852d40d2ce26c2d
SHA512 f3bce517bab0764fab0fa110479149b350e80841514a6096f5e48383ac60d7e7903b81fe8af8fc685ca13d3c94fdf85937331389fac943b2b6de5de3ac4a86b7

memory/2836-25-0x000007FEF55B3000-0x000007FEF55B4000-memory.dmp

memory/2836-26-0x0000000000910000-0x0000000001196000-memory.dmp

memory/2836-27-0x000000001BC80000-0x000000001BF04000-memory.dmp

memory/2688-28-0x0000000000780000-0x00000000007C1000-memory.dmp

memory/2688-30-0x00000000007D0000-0x000000000081F000-memory.dmp

memory/2836-29-0x000007FEF55B0000-0x000007FEF5F9C000-memory.dmp

memory/2836-31-0x000007FEF55B3000-0x000007FEF55B4000-memory.dmp

memory/2836-32-0x000007FEF55B0000-0x000007FEF5F9C000-memory.dmp

memory/2688-33-0x0000000000400000-0x000000000044E000-memory.dmp

memory/2688-34-0x00000000007D0000-0x000000000081F000-memory.dmp