Malware Analysis Report

2025-08-05 10:15

Sample ID 241109-fylk4sycpl
Target b7966ff9361f4f72114a0db06f8a553aa80d0ae5ccc0de6e166afeebce0be35d
SHA256 b7966ff9361f4f72114a0db06f8a553aa80d0ae5ccc0de6e166afeebce0be35d
Tags
healer redline 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

b7966ff9361f4f72114a0db06f8a553aa80d0ae5ccc0de6e166afeebce0be35d

Threat Level: Known bad

The file b7966ff9361f4f72114a0db06f8a553aa80d0ae5ccc0de6e166afeebce0be35d was found to be: Known bad.

Malicious Activity Summary

healer redline discovery dropper evasion infostealer persistence trojan

Healer

RedLine payload

Redline family

RedLine

Healer family

Modifies Windows Defender Real-time Protection settings

Detects Healer an antivirus disabler dropper

Windows security modification

Executes dropped EXE

Adds Run key to start application

Program crash

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-09 05:16

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 05:16

Reported

2024-11-09 05:19

Platform

win10v2004-20241007-en

Max time kernel

142s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b7966ff9361f4f72114a0db06f8a553aa80d0ae5ccc0de6e166afeebce0be35d.exe"

Signatures

Detects Healer an antivirus disabler dropper

Description Indicator Process Target
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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\DisableBehaviorMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\48608722.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\IXP001.TMP\48608722.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\IXP001.TMP\48608722.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\48608722.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\IXP001.TMP\48608722.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\48608722.exe N/A

RedLine

infostealer redline

RedLine payload

Description Indicator Process Target
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Redline family

redline

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\IXP001.TMP\48608722.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\48608722.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\b7966ff9361f4f72114a0db06f8a553aa80d0ae5ccc0de6e166afeebce0be35d.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\un134238.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\b7966ff9361f4f72114a0db06f8a553aa80d0ae5ccc0de6e166afeebce0be35d.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un134238.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\48608722.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rk964611.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\48608722.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\48608722.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\48608722.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rk964611.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4296 wrote to memory of 3100 N/A C:\Users\Admin\AppData\Local\Temp\b7966ff9361f4f72114a0db06f8a553aa80d0ae5ccc0de6e166afeebce0be35d.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un134238.exe
PID 4296 wrote to memory of 3100 N/A C:\Users\Admin\AppData\Local\Temp\b7966ff9361f4f72114a0db06f8a553aa80d0ae5ccc0de6e166afeebce0be35d.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un134238.exe
PID 4296 wrote to memory of 3100 N/A C:\Users\Admin\AppData\Local\Temp\b7966ff9361f4f72114a0db06f8a553aa80d0ae5ccc0de6e166afeebce0be35d.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un134238.exe
PID 3100 wrote to memory of 2648 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un134238.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\48608722.exe
PID 3100 wrote to memory of 2648 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un134238.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\48608722.exe
PID 3100 wrote to memory of 2648 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un134238.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\48608722.exe
PID 3100 wrote to memory of 4176 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un134238.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rk964611.exe
PID 3100 wrote to memory of 4176 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un134238.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rk964611.exe
PID 3100 wrote to memory of 4176 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un134238.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rk964611.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b7966ff9361f4f72114a0db06f8a553aa80d0ae5ccc0de6e166afeebce0be35d.exe

"C:\Users\Admin\AppData\Local\Temp\b7966ff9361f4f72114a0db06f8a553aa80d0ae5ccc0de6e166afeebce0be35d.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un134238.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un134238.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\48608722.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\48608722.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2648 -ip 2648

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2648 -s 1088

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rk964611.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rk964611.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
RU 185.161.248.72:38452 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
RU 185.161.248.72:38452 tcp
US 8.8.8.8:53 74.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
RU 185.161.248.72:38452 tcp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
RU 185.161.248.72:38452 tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
RU 185.161.248.72:38452 tcp
RU 185.161.248.72:38452 tcp
RU 185.161.248.72:38452 tcp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un134238.exe

MD5 550bff38f84718910767c619226cd3ef
SHA1 bc6ca336c6aaccff9889bcb0d8404b72a593666e
SHA256 c5959795e84dfa11cc0d1f1e6e7bfc7be7bc7392c49bbf01435bff5c4b372548
SHA512 626cb6cf31fe976e1799072e3efc3e5e37e517d62c93969a560e0c37740f91b88736ddbf067320f1793b158d65a719674b72df69f56f460d5bc9e2141551ede8

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\48608722.exe

MD5 4e123489b79254a7bb909675f0542736
SHA1 a5294a40a7409b53feb948108a472ad8631c94c9
SHA256 54ce0a5c708db5c4782fcdeaed69d2dcc54ccbc2a5b39d6815423130ea844ee0
SHA512 adc1395fa61c800b7f6c9f30316372d3a039cb8a78d994fd902048fa7cace2232e0ae6367327a6b2757ab924e75b2ba6a374daf7a4fee3d1e9e4da8cbe5dc36d

memory/2648-16-0x00000000008F0000-0x000000000091D000-memory.dmp

memory/2648-15-0x00000000009B0000-0x0000000000AB0000-memory.dmp

memory/2648-17-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2648-18-0x0000000000400000-0x0000000000803000-memory.dmp

memory/2648-19-0x0000000000B80000-0x0000000000B9A000-memory.dmp

memory/2648-20-0x0000000004F10000-0x00000000054B4000-memory.dmp

memory/2648-21-0x00000000026C0000-0x00000000026D8000-memory.dmp

memory/2648-23-0x00000000026C0000-0x00000000026D2000-memory.dmp

memory/2648-49-0x00000000026C0000-0x00000000026D2000-memory.dmp

memory/2648-47-0x00000000026C0000-0x00000000026D2000-memory.dmp

memory/2648-46-0x00000000026C0000-0x00000000026D2000-memory.dmp

memory/2648-43-0x00000000026C0000-0x00000000026D2000-memory.dmp

memory/2648-41-0x00000000026C0000-0x00000000026D2000-memory.dmp

memory/2648-40-0x00000000026C0000-0x00000000026D2000-memory.dmp

memory/2648-37-0x00000000026C0000-0x00000000026D2000-memory.dmp

memory/2648-35-0x00000000026C0000-0x00000000026D2000-memory.dmp

memory/2648-33-0x00000000026C0000-0x00000000026D2000-memory.dmp

memory/2648-31-0x00000000026C0000-0x00000000026D2000-memory.dmp

memory/2648-25-0x00000000026C0000-0x00000000026D2000-memory.dmp

memory/2648-22-0x00000000026C0000-0x00000000026D2000-memory.dmp

memory/2648-29-0x00000000026C0000-0x00000000026D2000-memory.dmp

memory/2648-27-0x00000000026C0000-0x00000000026D2000-memory.dmp

memory/2648-50-0x00000000009B0000-0x0000000000AB0000-memory.dmp

memory/2648-51-0x00000000008F0000-0x000000000091D000-memory.dmp

memory/2648-52-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2648-56-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2648-55-0x0000000000400000-0x0000000000803000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rk964611.exe

MD5 8cd916a24464ebd3a8b027d0dcf176ce
SHA1 6bab7fb9aea0ca3fa28f921a558b2b5ba8fd3315
SHA256 9e5e2fa580960bce98a9b2edfefd02dff1204c6eebb2f84b2e5428e20dd5f63c
SHA512 40a7c732cba05c92b4e04ba8b5a68bbe36fc8601b20653b909e8fd7e60e3b177a74d74228aeb862917f6b9a3ef17d408ec27aab39813232ecc23b06781e22a2b

memory/4176-61-0x0000000002680000-0x00000000026BC000-memory.dmp

memory/4176-62-0x0000000002990000-0x00000000029CA000-memory.dmp

memory/4176-68-0x0000000002990000-0x00000000029C5000-memory.dmp

memory/4176-82-0x0000000002990000-0x00000000029C5000-memory.dmp

memory/4176-96-0x0000000002990000-0x00000000029C5000-memory.dmp

memory/4176-94-0x0000000002990000-0x00000000029C5000-memory.dmp

memory/4176-92-0x0000000002990000-0x00000000029C5000-memory.dmp

memory/4176-91-0x0000000002990000-0x00000000029C5000-memory.dmp

memory/4176-88-0x0000000002990000-0x00000000029C5000-memory.dmp

memory/4176-86-0x0000000002990000-0x00000000029C5000-memory.dmp

memory/4176-85-0x0000000002990000-0x00000000029C5000-memory.dmp

memory/4176-80-0x0000000002990000-0x00000000029C5000-memory.dmp

memory/4176-79-0x0000000002990000-0x00000000029C5000-memory.dmp

memory/4176-76-0x0000000002990000-0x00000000029C5000-memory.dmp

memory/4176-74-0x0000000002990000-0x00000000029C5000-memory.dmp

memory/4176-72-0x0000000002990000-0x00000000029C5000-memory.dmp

memory/4176-70-0x0000000002990000-0x00000000029C5000-memory.dmp

memory/4176-66-0x0000000002990000-0x00000000029C5000-memory.dmp

memory/4176-64-0x0000000002990000-0x00000000029C5000-memory.dmp

memory/4176-63-0x0000000002990000-0x00000000029C5000-memory.dmp

memory/4176-855-0x0000000007960000-0x0000000007F78000-memory.dmp

memory/4176-856-0x0000000007FA0000-0x0000000007FB2000-memory.dmp

memory/4176-857-0x0000000007FC0000-0x00000000080CA000-memory.dmp

memory/4176-858-0x00000000080E0000-0x000000000811C000-memory.dmp

memory/4176-859-0x0000000000BA0000-0x0000000000BEC000-memory.dmp