Malware Analysis Report

2025-08-06 00:59

Sample ID 241109-fre5ra1lek
Target 6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7
SHA256 6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7
Tags
healer redline dubna 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

6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7

Threat Level: Known bad

The file 6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7 was found to be: Known bad.

Malicious Activity Summary

healer redline dubna discovery dropper evasion infostealer persistence trojan

Redline family

RedLine

Healer family

Detects Healer an antivirus disabler dropper

Healer

RedLine payload

Modifies Windows Defender Real-time Protection settings

Executes dropped EXE

Windows security modification

Adds Run key to start application

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-09 05:06

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 05:06

Reported

2024-11-09 05:08

Platform

win10v2004-20241007-en

Max time kernel

141s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7.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
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\aAvAv.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\aAvAv.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\aAvAv.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\aAvAv.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\aAvAv.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\aAvAv.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\aAvAv.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\6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7.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\dFHn.exe N/A
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\doVn.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\6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dFHn.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\doVn.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\bAvAv.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3956 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dFHn.exe
PID 3956 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dFHn.exe
PID 3956 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dFHn.exe
PID 2136 wrote to memory of 4664 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dFHn.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\doVn.exe
PID 2136 wrote to memory of 4664 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dFHn.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\doVn.exe
PID 2136 wrote to memory of 4664 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dFHn.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\doVn.exe
PID 4664 wrote to memory of 4972 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\doVn.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\aAvAv.exe
PID 4664 wrote to memory of 4972 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\doVn.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\aAvAv.exe
PID 4664 wrote to memory of 3608 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\doVn.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\bAvAv.exe
PID 4664 wrote to memory of 3608 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\doVn.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\bAvAv.exe
PID 4664 wrote to memory of 3608 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\doVn.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\bAvAv.exe

Processes

C:\Users\Admin\AppData\Local\Temp\6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7.exe

"C:\Users\Admin\AppData\Local\Temp\6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7.exe"

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

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

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

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

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
RU 193.233.20.11:4131 tcp
RU 193.233.20.11:4131 tcp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
RU 193.233.20.11:4131 tcp
RU 193.233.20.11:4131 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
RU 193.233.20.11:4131 tcp
RU 193.233.20.11:4131 tcp

Files

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

MD5 a1314ae867a0aad70f0212a3b4af7884
SHA1 84170215e64e2b2959779392449baa5206ed3b8a
SHA256 ddb48ec62b91d24db6ef43762f466b87d244a2b7342b885cae402d252bda0cce
SHA512 e6e67a705a6e14e5dc474e170fec7e0693f828339764d410fdd968df85357b187e7c783426f0c4978840de96ac4bb00360235841b868f99c530c9a51cc951e84

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

MD5 e2ad1da05395d032018e9489ba36db5f
SHA1 a039780b8153b304a4ddf108a492d1de0d1ff04d
SHA256 d77e38ad1a9c99a93328d087e54548842d500c602337864dcc2fef0cb660f85b
SHA512 63210564358529ddc9bce2627c73403cccefaa3d49e2d7a6c4dff940a61623713d36f0f72ad6e4ec37cc1b5af681ccb2fab1efba256ccab87f00acf68af779f5

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

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

memory/4972-22-0x00007FFF17063000-0x00007FFF17065000-memory.dmp

memory/4972-21-0x0000000000030000-0x000000000003A000-memory.dmp

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

MD5 ef8079cf160510d0da7162bc08f753d8
SHA1 e786cc8bee83e4a37433ddccf9d3540e1f6533fe
SHA256 a6416ca607f03e7d02dd9c8b546113c71f421c0ba8438dafb941d25f8cf2c9e6
SHA512 959b08126358527b794a276f6e9f818250f888d9f108b46766f6c2e50186acc8f406acbeb94ca97b5f0e329b27f3851003446715d5d040b5c0fef4010011a2c3

memory/3608-27-0x00000000008D0000-0x0000000000902000-memory.dmp

memory/3608-28-0x0000000005830000-0x0000000005E48000-memory.dmp

memory/3608-29-0x00000000053B0000-0x00000000054BA000-memory.dmp

memory/3608-30-0x00000000052F0000-0x0000000005302000-memory.dmp

memory/3608-31-0x0000000005350000-0x000000000538C000-memory.dmp

memory/3608-32-0x00000000054C0000-0x000000000550C000-memory.dmp