Malware Analysis Report

2025-01-23 07:34

Sample ID 241104-rb1bja1aqd
Target b27b62a66ebac584c39c3364b8335a03148ef0e05afa76b62562f7820fc9af89
SHA256 b27b62a66ebac584c39c3364b8335a03148ef0e05afa76b62562f7820fc9af89
Tags
healer redline fud 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

b27b62a66ebac584c39c3364b8335a03148ef0e05afa76b62562f7820fc9af89

Threat Level: Known bad

The file b27b62a66ebac584c39c3364b8335a03148ef0e05afa76b62562f7820fc9af89 was found to be: Known bad.

Malicious Activity Summary

healer redline fud discovery dropper evasion infostealer persistence trojan

RedLine payload

Healer family

Modifies Windows Defender Real-time Protection settings

Redline family

RedLine

Healer

Detects Healer an antivirus disabler dropper

Windows security modification

Executes dropped EXE

Adds Run key to start application

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-04 14:01

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2024-11-04 14:01

Reported

2024-11-04 14:04

Platform

win10v2004-20241007-en

Max time kernel

145s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b27b62a66ebac584c39c3364b8335a03148ef0e05afa76b62562f7820fc9af89.exe"

Signatures

Detects Healer an antivirus disabler dropper

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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\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r0736zC.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r0736zC.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r0736zC.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r0736zC.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r0736zC.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r0736zC.exe N/A

RedLine

infostealer redline

RedLine payload

Description Indicator Process Target
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Redline family

redline

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r0736zC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\w99vf62.exe N/A

Windows security modification

evasion trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r0736zC.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r0736zC.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\b27b62a66ebac584c39c3364b8335a03148ef0e05afa76b62562f7820fc9af89.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\b27b62a66ebac584c39c3364b8335a03148ef0e05afa76b62562f7820fc9af89.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r0736zC.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\w99vf62.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r0736zC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r0736zC.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r0736zC.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\w99vf62.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b27b62a66ebac584c39c3364b8335a03148ef0e05afa76b62562f7820fc9af89.exe

"C:\Users\Admin\AppData\Local\Temp\b27b62a66ebac584c39c3364b8335a03148ef0e05afa76b62562f7820fc9af89.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r0736zC.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r0736zC.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1812 -ip 1812

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1812 -s 1080

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\w99vf62.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\w99vf62.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
RU 193.233.20.27:4123 tcp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
RU 193.233.20.27:4123 tcp
RU 193.233.20.27:4123 tcp
RU 193.233.20.27:4123 tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.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
RU 193.233.20.27:4123 tcp
RU 193.233.20.27:4123 tcp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r0736zC.exe

MD5 8141937b23cd1895e561d8e90fdeeff3
SHA1 6f810e9e480564f5837461f8ccdd07c951a1bece
SHA256 ddda10348c77cf0a1539c3a42ce4f71e2c1895ab9b77348256e0a1f01c0936b6
SHA512 40957cd33c4be1dab98ac0c40424c868aa3be6f6265fa28df050e5a4844ac6324acb93770bc6cb7cafedabc93fab9b9179a6e6525f6b3dd6fa9e31b4d5da5bec

memory/1812-8-0x00000000006F0000-0x00000000007F0000-memory.dmp

memory/1812-10-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/1812-9-0x0000000000400000-0x0000000000430000-memory.dmp

memory/1812-11-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/1812-12-0x00000000022D0000-0x00000000022EA000-memory.dmp

memory/1812-13-0x0000000004C80000-0x0000000005224000-memory.dmp

memory/1812-14-0x0000000002520000-0x0000000002538000-memory.dmp

memory/1812-28-0x0000000002520000-0x0000000002532000-memory.dmp

memory/1812-42-0x0000000002520000-0x0000000002532000-memory.dmp

memory/1812-40-0x0000000002520000-0x0000000002532000-memory.dmp

memory/1812-38-0x0000000002520000-0x0000000002532000-memory.dmp

memory/1812-36-0x0000000002520000-0x0000000002532000-memory.dmp

memory/1812-34-0x0000000002520000-0x0000000002532000-memory.dmp

memory/1812-32-0x0000000002520000-0x0000000002532000-memory.dmp

memory/1812-30-0x0000000002520000-0x0000000002532000-memory.dmp

memory/1812-26-0x0000000002520000-0x0000000002532000-memory.dmp

memory/1812-24-0x0000000002520000-0x0000000002532000-memory.dmp

memory/1812-22-0x0000000002520000-0x0000000002532000-memory.dmp

memory/1812-20-0x0000000002520000-0x0000000002532000-memory.dmp

memory/1812-18-0x0000000002520000-0x0000000002532000-memory.dmp

memory/1812-16-0x0000000002520000-0x0000000002532000-memory.dmp

memory/1812-15-0x0000000002520000-0x0000000002532000-memory.dmp

memory/1812-43-0x00000000006F0000-0x00000000007F0000-memory.dmp

memory/1812-44-0x0000000000400000-0x0000000000430000-memory.dmp

memory/1812-47-0x0000000000400000-0x00000000004D4000-memory.dmp

memory/1812-48-0x0000000000400000-0x0000000000430000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\w99vf62.exe

MD5 bd7d0997d92b4372ed4df555af7feb35
SHA1 98c793437da6a7593604a89fca61e9369192f417
SHA256 5fb3491831556672c848f6eea070fa753aabb321f3eeb9cfef28e508bcf84bcd
SHA512 cf2a7fa34d3aeda08d39d391a31d1c5c8bd332a5e73ee8374c72be07aa379c81e24449a6572fdb7f1fa5d17de4df556fa1ccd0a4c1163083bd7500e34fcb1b8c

memory/1792-54-0x0000000000400000-0x0000000000467000-memory.dmp

memory/1792-55-0x0000000000400000-0x0000000000467000-memory.dmp

memory/1792-53-0x0000000000400000-0x0000000000467000-memory.dmp

memory/1792-57-0x0000000002350000-0x0000000002396000-memory.dmp

memory/1792-56-0x0000000000400000-0x0000000000467000-memory.dmp

memory/1792-58-0x0000000002550000-0x0000000002594000-memory.dmp

memory/1792-59-0x0000000002550000-0x000000000258E000-memory.dmp

memory/1792-78-0x0000000002550000-0x000000000258E000-memory.dmp

memory/1792-92-0x0000000002550000-0x000000000258E000-memory.dmp

memory/1792-90-0x0000000002550000-0x000000000258E000-memory.dmp

memory/1792-88-0x0000000002550000-0x000000000258E000-memory.dmp

memory/1792-84-0x0000000002550000-0x000000000258E000-memory.dmp

memory/1792-82-0x0000000002550000-0x000000000258E000-memory.dmp

memory/1792-80-0x0000000002550000-0x000000000258E000-memory.dmp

memory/1792-76-0x0000000002550000-0x000000000258E000-memory.dmp

memory/1792-74-0x0000000002550000-0x000000000258E000-memory.dmp

memory/1792-72-0x0000000002550000-0x000000000258E000-memory.dmp

memory/1792-70-0x0000000002550000-0x000000000258E000-memory.dmp

memory/1792-68-0x0000000002550000-0x000000000258E000-memory.dmp

memory/1792-66-0x0000000002550000-0x000000000258E000-memory.dmp

memory/1792-64-0x0000000002550000-0x000000000258E000-memory.dmp

memory/1792-62-0x0000000002550000-0x000000000258E000-memory.dmp

memory/1792-60-0x0000000002550000-0x000000000258E000-memory.dmp

memory/1792-86-0x0000000002550000-0x000000000258E000-memory.dmp

memory/1792-965-0x0000000005250000-0x0000000005868000-memory.dmp

memory/1792-966-0x0000000005880000-0x000000000598A000-memory.dmp

memory/1792-967-0x00000000059C0000-0x00000000059D2000-memory.dmp

memory/1792-968-0x00000000059E0000-0x0000000005A1C000-memory.dmp

memory/1792-969-0x0000000005B30000-0x0000000005B7C000-memory.dmp