Malware Analysis Report

2024-11-15 09:57

Sample ID 241110-b6pkhswhlj
Target bec1737d472d7513580d359b2d58450aefe5c76053fb1276652fa14d154b60d8N
SHA256 bec1737d472d7513580d359b2d58450aefe5c76053fb1276652fa14d154b60d8
Tags
healer discovery dropper evasion persistence trojan
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 Overview

score
10/10

SHA256

bec1737d472d7513580d359b2d58450aefe5c76053fb1276652fa14d154b60d8

Threat Level: Known bad

The file bec1737d472d7513580d359b2d58450aefe5c76053fb1276652fa14d154b60d8N was found to be: Known bad.

Malicious Activity Summary

healer discovery dropper evasion persistence trojan

Healer family

Healer

Detects Healer an antivirus disabler dropper

Modifies Windows Defender Real-time Protection settings

Executes dropped EXE

Checks computer location settings

Windows security modification

Adds Run key to start application

Program crash

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-10 01:45

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-10 01:45

Reported

2024-11-10 01:47

Platform

win10v2004-20241007-en

Max time kernel

96s

Max time network

97s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bec1737d472d7513580d359b2d58450aefe5c76053fb1276652fa14d154b60d8N.exe"

Signatures

Detects Healer an antivirus disabler dropper

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

Healer

dropper healer

Healer family

healer

Modifies Windows Defender Real-time Protection settings

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" C:\Windows\Temp\1.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Windows\Temp\1.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" C:\Windows\Temp\1.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" C:\Windows\Temp\1.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" C:\Windows\Temp\1.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" C:\Windows\Temp\1.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\162981132.exe N/A

Windows security modification

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Windows\Temp\1.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\bec1737d472d7513580d359b2d58450aefe5c76053fb1276652fa14d154b60d8N.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\IXP000.TMP\208375335.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\bec1737d472d7513580d359b2d58450aefe5c76053fb1276652fa14d154b60d8N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\162981132.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Temp\1.exe N/A
N/A N/A C:\Windows\Temp\1.exe N/A
N/A N/A C:\Windows\Temp\1.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\162981132.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\208375335.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Temp\1.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3264 wrote to memory of 4400 N/A C:\Users\Admin\AppData\Local\Temp\bec1737d472d7513580d359b2d58450aefe5c76053fb1276652fa14d154b60d8N.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\162981132.exe
PID 3264 wrote to memory of 4400 N/A C:\Users\Admin\AppData\Local\Temp\bec1737d472d7513580d359b2d58450aefe5c76053fb1276652fa14d154b60d8N.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\162981132.exe
PID 3264 wrote to memory of 4400 N/A C:\Users\Admin\AppData\Local\Temp\bec1737d472d7513580d359b2d58450aefe5c76053fb1276652fa14d154b60d8N.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\162981132.exe
PID 4400 wrote to memory of 5148 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\162981132.exe C:\Windows\Temp\1.exe
PID 4400 wrote to memory of 5148 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\162981132.exe C:\Windows\Temp\1.exe
PID 3264 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\bec1737d472d7513580d359b2d58450aefe5c76053fb1276652fa14d154b60d8N.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\208375335.exe
PID 3264 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\bec1737d472d7513580d359b2d58450aefe5c76053fb1276652fa14d154b60d8N.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\208375335.exe
PID 3264 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\bec1737d472d7513580d359b2d58450aefe5c76053fb1276652fa14d154b60d8N.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\208375335.exe

Processes

C:\Users\Admin\AppData\Local\Temp\bec1737d472d7513580d359b2d58450aefe5c76053fb1276652fa14d154b60d8N.exe

"C:\Users\Admin\AppData\Local\Temp\bec1737d472d7513580d359b2d58450aefe5c76053fb1276652fa14d154b60d8N.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\162981132.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\162981132.exe

C:\Windows\Temp\1.exe

"C:\Windows\Temp\1.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\208375335.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\208375335.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1924 -ip 1924

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1924 -s 1260

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\162981132.exe

MD5 df06baa45ef5d8916bb0a437c3b11ba0
SHA1 237189277fd175c7a2ef6fe90f573b4f2901b9a2
SHA256 202af656b51aa64772a466b4957547c347e51a8414bde70ced359f0b3f31e0ce
SHA512 4cdafcf0f4f5e00816788094cd342322b638597fdeb9d05f74346bdd49f7a2c3d74bd1a05e4c1d5a37177ed77068f4ebf8499f18d8aacfaece68b5be628a1712

memory/4400-7-0x00000000749CE000-0x00000000749CF000-memory.dmp

memory/4400-8-0x00000000025E0000-0x0000000002638000-memory.dmp

memory/4400-9-0x00000000749C0000-0x0000000075170000-memory.dmp

memory/4400-12-0x00000000749C0000-0x0000000075170000-memory.dmp

memory/4400-11-0x00000000026C0000-0x0000000002716000-memory.dmp

memory/4400-13-0x00000000749C0000-0x0000000075170000-memory.dmp

memory/4400-10-0x0000000004B00000-0x00000000050A4000-memory.dmp

memory/4400-21-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-35-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-33-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-31-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-29-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-27-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-25-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-23-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-19-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-17-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-15-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-14-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-55-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-57-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-61-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-59-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-75-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-73-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-71-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-69-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-67-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-65-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-63-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-53-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-51-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-49-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-47-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-45-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-43-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-77-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-41-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-39-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-37-0x00000000026C0000-0x0000000002711000-memory.dmp

memory/4400-2142-0x0000000002780000-0x000000000278A000-memory.dmp

C:\Windows\Temp\1.exe

MD5 7e93bacbbc33e6652e147e7fe07572a0
SHA1 421a7167da01c8da4dc4d5234ca3dd84e319e762
SHA256 850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38
SHA512 250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91

memory/4400-2151-0x00000000749C0000-0x0000000075170000-memory.dmp

memory/4400-2158-0x00000000749C0000-0x0000000075170000-memory.dmp

memory/5148-2157-0x00007FFE57803000-0x00007FFE57805000-memory.dmp

memory/5148-2156-0x00000000006F0000-0x00000000006FA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\208375335.exe

MD5 d23dec4a566ebda98088dca3e0e04a4c
SHA1 7b553bd5549d5a168d8b77fa1c7c256867b2edd1
SHA256 45d22e7fa762adc3c7ce456a1f08b63bd9c3f1161d2ae6a83fb7a8aadb03813b
SHA512 999cef0e28969c273f07dc35f7fdfe82958b9a580f92ce32e490c0f5dcb9bc056f9ff9d3eb0f157bd5b39663d3fa9664e69aa0c5312115c1c6dfc0d97c36a519

memory/1924-4291-0x0000000005740000-0x00000000057D2000-memory.dmp