Malware Analysis Report

2025-01-23 07:42

Sample ID 241107-r38f8atlcs
Target b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef
SHA256 b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef
Tags
healer redline fukia discovery dropper evasion infostealer 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

b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef

Threat Level: Known bad

The file b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef was found to be: Known bad.

Malicious Activity Summary

healer redline fukia discovery dropper evasion infostealer persistence trojan

RedLine

Healer family

Detects Healer an antivirus disabler dropper

RedLine payload

Healer

Modifies Windows Defender Real-time Protection settings

Redline family

Executes dropped EXE

Windows security modification

Adds Run key to start application

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-07 14:44

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-07 14:44

Reported

2024-11-07 14:46

Platform

win10v2004-20241007-en

Max time kernel

141s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef.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

Healer

dropper healer

Healer family

healer

Modifies Windows Defender Real-time Protection settings

evasion trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\fzu44Wp.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\fzu44Wp.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\fzu44Wp.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\fzu44Wp.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\fzu44Wp.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\fzu44Wp.exe N/A

RedLine

infostealer redline

RedLine payload

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

Redline family

redline

Windows security modification

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\fzu44Wp.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_cleanup2 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP002.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sWq63wK.exe N/A
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\b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sDN53aI.exe N/A

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\b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sDN53aI.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sWq63wK.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\hFh67Hj.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\fzu44Wp.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\fzu44Wp.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\fzu44Wp.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1492 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sDN53aI.exe
PID 1492 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sDN53aI.exe
PID 1492 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sDN53aI.exe
PID 3056 wrote to memory of 3752 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sDN53aI.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sWq63wK.exe
PID 3056 wrote to memory of 3752 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sDN53aI.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sWq63wK.exe
PID 3056 wrote to memory of 3752 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sDN53aI.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sWq63wK.exe
PID 3752 wrote to memory of 1244 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sWq63wK.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\fzu44Wp.exe
PID 3752 wrote to memory of 1244 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sWq63wK.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\fzu44Wp.exe
PID 3752 wrote to memory of 2440 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sWq63wK.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\hFh67Hj.exe
PID 3752 wrote to memory of 2440 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sWq63wK.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\hFh67Hj.exe
PID 3752 wrote to memory of 2440 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sWq63wK.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\hFh67Hj.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef.exe

"C:\Users\Admin\AppData\Local\Temp\b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sDN53aI.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sDN53aI.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sWq63wK.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sWq63wK.exe

C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\fzu44Wp.exe

C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\fzu44Wp.exe

C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\hFh67Hj.exe

C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\hFh67Hj.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
RU 193.233.20.13:4136 tcp
RU 193.233.20.13:4136 tcp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
RU 193.233.20.13:4136 tcp
RU 193.233.20.13:4136 tcp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
RU 193.233.20.13:4136 tcp
RU 193.233.20.13:4136 tcp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sDN53aI.exe

MD5 24cdcc486d555dd4119920d27420395c
SHA1 2420933325ae37d71496fc6fe943267513e8bcbd
SHA256 ecff47ddf70bd73c1199ab7c9f08060e36e1fced6c1568457be287f2b471d0e5
SHA512 cb1070581eaa8b84a98bd9db961f3d84feb3e45cc244955d6539768ae2220eb8452507cffed20920e8aaf193e81ec6284fa58357e77b37edcdb419c8df4b990d

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sWq63wK.exe

MD5 5c17583ddedf2bfec0dc7cef0cbe902f
SHA1 cd90eb409807e2e1030c1f0197c9b277f0a81852
SHA256 0c9e7d8cb20d9f9565ad3905bcc1b4bcce90f3081a3276ce358b9d744784705a
SHA512 c6d35effca254123589b9df3890aa86b31a84d9387a09c1787a67a87fd11978beda196d6cb48f62b4dc6be6f8d09253aeb151f89537709b8970797887eeb614f

C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\fzu44Wp.exe

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

memory/1244-21-0x00007FFEFA6F3000-0x00007FFEFA6F5000-memory.dmp

memory/1244-22-0x0000000000AE0000-0x0000000000AEA000-memory.dmp

memory/1244-23-0x00007FFEFA6F3000-0x00007FFEFA6F5000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\hFh67Hj.exe

MD5 a5f5c5d6291c7ae9e1d1b7ed1e551490
SHA1 3d06413341893b838549939e15f8f1eec423d71a
SHA256 1a09ce1cb64219a5d88e57845dc9ba6631efa06fccc8867ccf94eb132947563e
SHA512 d9b3ba67bdd615ee2ce91a29cd9cf6723464be27bf45186fd0e9559ff2b0e7c51b423cfc3e32b5e90955046fb75a34c4a8528df7294b6c831ca254a65d2b8ba2

memory/2440-28-0x00000000007F0000-0x0000000000822000-memory.dmp

memory/2440-29-0x0000000005760000-0x0000000005D78000-memory.dmp

memory/2440-30-0x00000000052D0000-0x00000000053DA000-memory.dmp

memory/2440-31-0x0000000005200000-0x0000000005212000-memory.dmp

memory/2440-32-0x00000000053E0000-0x000000000541C000-memory.dmp

memory/2440-33-0x0000000005220000-0x000000000526C000-memory.dmp