Malware Analysis Report

2025-01-23 07:43

Sample ID 241108-maz7xs1bjf
Target b45c81e4ae54157944c410b6bd432aeb7f32c471d06c4406757666473b6c70f1
SHA256 b45c81e4ae54157944c410b6bd432aeb7f32c471d06c4406757666473b6c70f1
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

b45c81e4ae54157944c410b6bd432aeb7f32c471d06c4406757666473b6c70f1

Threat Level: Known bad

The file b45c81e4ae54157944c410b6bd432aeb7f32c471d06c4406757666473b6c70f1 was found to be: Known bad.

Malicious Activity Summary

healer redline fukia discovery dropper evasion infostealer persistence trojan

Healer

RedLine

Redline family

Modifies Windows Defender Real-time Protection settings

Detects Healer an antivirus disabler dropper

Healer family

RedLine payload

Executes dropped EXE

Windows security modification

Adds Run key to start application

System Location Discovery: System Language Discovery

Program crash

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-08 10:16

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-08 10:16

Reported

2024-11-08 10:18

Platform

win10v2004-20241007-en

Max time kernel

128s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b45c81e4ae54157944c410b6bd432aeb7f32c471d06c4406757666473b6c70f1.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\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dhh47hH.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dhh47hH.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dhh47hH.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\eNY31Ag.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\eNY31Ag.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dhh47hH.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dhh47hH.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dhh47hH.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eNY31Ag.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\IXP001.TMP\eNY31Ag.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\eNY31Ag.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\eNY31Ag.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\eNY31Ag.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eNY31Ag.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dhh47hH.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\b45c81e4ae54157944c410b6bd432aeb7f32c471d06c4406757666473b6c70f1.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\nyW32fJ04.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\b45c81e4ae54157944c410b6bd432aeb7f32c471d06c4406757666473b6c70f1.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nyW32fJ04.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eNY31Ag.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ftI78gT.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dhh47hH.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eNY31Ag.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3228 wrote to memory of 4312 N/A C:\Users\Admin\AppData\Local\Temp\b45c81e4ae54157944c410b6bd432aeb7f32c471d06c4406757666473b6c70f1.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nyW32fJ04.exe
PID 3228 wrote to memory of 4312 N/A C:\Users\Admin\AppData\Local\Temp\b45c81e4ae54157944c410b6bd432aeb7f32c471d06c4406757666473b6c70f1.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nyW32fJ04.exe
PID 3228 wrote to memory of 4312 N/A C:\Users\Admin\AppData\Local\Temp\b45c81e4ae54157944c410b6bd432aeb7f32c471d06c4406757666473b6c70f1.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nyW32fJ04.exe
PID 4312 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nyW32fJ04.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dhh47hH.exe
PID 4312 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nyW32fJ04.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dhh47hH.exe
PID 4312 wrote to memory of 372 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nyW32fJ04.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eNY31Ag.exe
PID 4312 wrote to memory of 372 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nyW32fJ04.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eNY31Ag.exe
PID 4312 wrote to memory of 372 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nyW32fJ04.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eNY31Ag.exe
PID 3228 wrote to memory of 4780 N/A C:\Users\Admin\AppData\Local\Temp\b45c81e4ae54157944c410b6bd432aeb7f32c471d06c4406757666473b6c70f1.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ftI78gT.exe
PID 3228 wrote to memory of 4780 N/A C:\Users\Admin\AppData\Local\Temp\b45c81e4ae54157944c410b6bd432aeb7f32c471d06c4406757666473b6c70f1.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ftI78gT.exe
PID 3228 wrote to memory of 4780 N/A C:\Users\Admin\AppData\Local\Temp\b45c81e4ae54157944c410b6bd432aeb7f32c471d06c4406757666473b6c70f1.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ftI78gT.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b45c81e4ae54157944c410b6bd432aeb7f32c471d06c4406757666473b6c70f1.exe

"C:\Users\Admin\AppData\Local\Temp\b45c81e4ae54157944c410b6bd432aeb7f32c471d06c4406757666473b6c70f1.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nyW32fJ04.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nyW32fJ04.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dhh47hH.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dhh47hH.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eNY31Ag.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eNY31Ag.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 372 -ip 372

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 372 -s 1084

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ftI78gT.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ftI78gT.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
RU 193.233.20.13:4136 tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
RU 193.233.20.13:4136 tcp
RU 193.233.20.13:4136 tcp
US 8.8.8.8:53 11.227.111.52.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\nyW32fJ04.exe

MD5 f59d9d36e5102e63cb47577837bcddb3
SHA1 20797729846ef7c8789c5057454b3217a755293d
SHA256 051d4dbd8cf71a506ba967a102b524f4db217ce3ff428a648c10d42029d5054e
SHA512 32addf7de09547098453605e4321fbf73d92e13ac14f971ee9f79f4ffbd0e35cc7d315574ea6f2938140486f92fb8d87cd3d8ecbed1e0d83601cfdd67e9f6039

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dhh47hH.exe

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

memory/3948-14-0x00007FFF96493000-0x00007FFF96495000-memory.dmp

memory/3948-15-0x0000000000220000-0x000000000022A000-memory.dmp

memory/3948-16-0x00007FFF96493000-0x00007FFF96495000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eNY31Ag.exe

MD5 bbcaab6d431de6d63e20ec7a085b0526
SHA1 e5bb15ef7458b516b37602649498b3d13c4df67d
SHA256 e0bd77d953de9c400b8338ca69f2aeb4eadfae945c75081b3c61fcc23ede76ee
SHA512 4f9ba138d9b458bb24907b2873a5eb0648858a60c0afac97c7b41adc2a3033d12037770b8d266ec8e2fb821dc8dcefc65c7150af534110e407a9cc672e317ac8

memory/372-22-0x0000000000AB0000-0x0000000000ACA000-memory.dmp

memory/372-23-0x0000000004CB0000-0x0000000005254000-memory.dmp

memory/372-24-0x0000000002210000-0x0000000002228000-memory.dmp

memory/372-25-0x0000000002210000-0x0000000002222000-memory.dmp

memory/372-34-0x0000000002210000-0x0000000002222000-memory.dmp

memory/372-52-0x0000000002210000-0x0000000002222000-memory.dmp

memory/372-51-0x0000000002210000-0x0000000002222000-memory.dmp

memory/372-48-0x0000000002210000-0x0000000002222000-memory.dmp

memory/372-46-0x0000000002210000-0x0000000002222000-memory.dmp

memory/372-44-0x0000000002210000-0x0000000002222000-memory.dmp

memory/372-43-0x0000000002210000-0x0000000002222000-memory.dmp

memory/372-40-0x0000000002210000-0x0000000002222000-memory.dmp

memory/372-38-0x0000000002210000-0x0000000002222000-memory.dmp

memory/372-36-0x0000000002210000-0x0000000002222000-memory.dmp

memory/372-32-0x0000000002210000-0x0000000002222000-memory.dmp

memory/372-30-0x0000000002210000-0x0000000002222000-memory.dmp

memory/372-28-0x0000000002210000-0x0000000002222000-memory.dmp

memory/372-26-0x0000000002210000-0x0000000002222000-memory.dmp

memory/372-53-0x0000000000400000-0x000000000056F000-memory.dmp

memory/372-55-0x0000000000400000-0x000000000056F000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ftI78gT.exe

MD5 a5f5c5d6291c7ae9e1d1b7ed1e551490
SHA1 3d06413341893b838549939e15f8f1eec423d71a
SHA256 1a09ce1cb64219a5d88e57845dc9ba6631efa06fccc8867ccf94eb132947563e
SHA512 d9b3ba67bdd615ee2ce91a29cd9cf6723464be27bf45186fd0e9559ff2b0e7c51b423cfc3e32b5e90955046fb75a34c4a8528df7294b6c831ca254a65d2b8ba2

memory/4780-59-0x0000000000E20000-0x0000000000E52000-memory.dmp

memory/4780-60-0x0000000005C40000-0x0000000006258000-memory.dmp

memory/4780-61-0x00000000057C0000-0x00000000058CA000-memory.dmp

memory/4780-62-0x00000000056F0000-0x0000000005702000-memory.dmp

memory/4780-63-0x0000000005780000-0x00000000057BC000-memory.dmp

memory/4780-64-0x00000000058D0000-0x000000000591C000-memory.dmp