Malware Analysis Report

2025-01-23 07:42

Sample ID 241108-ez875avhph
Target dfd644643f1804bf9081c3973f129ec6323500ec265328ce6274b3d087c56b4c
SHA256 dfd644643f1804bf9081c3973f129ec6323500ec265328ce6274b3d087c56b4c
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

dfd644643f1804bf9081c3973f129ec6323500ec265328ce6274b3d087c56b4c

Threat Level: Known bad

The file dfd644643f1804bf9081c3973f129ec6323500ec265328ce6274b3d087c56b4c was found to be: Known bad.

Malicious Activity Summary

healer redline fukia discovery dropper evasion infostealer persistence trojan

Redline family

Detects Healer an antivirus disabler dropper

RedLine payload

RedLine

Healer family

Modifies Windows Defender Real-time Protection settings

Healer

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

2024-11-08 04:23

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-08 04:23

Reported

2024-11-08 04:26

Platform

win10v2004-20241007-en

Max time kernel

129s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dfd644643f1804bf9081c3973f129ec6323500ec265328ce6274b3d087c56b4c.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\dzk03vs.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\dzk03vs.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\dzk03vs.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\dzk03vs.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\eeS39WU.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dzk03vs.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\dzk03vs.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eeS39WU.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\eeS39WU.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\eeS39WU.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\eeS39WU.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\eeS39WU.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
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dzk03vs.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eeS39WU.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eeS39WU.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\dfd644643f1804bf9081c3973f129ec6323500ec265328ce6274b3d087c56b4c.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\nsB38fM72.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\dfd644643f1804bf9081c3973f129ec6323500ec265328ce6274b3d087c56b4c.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nsB38fM72.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eeS39WU.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fbW08rd.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dzk03vs.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eeS39WU.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1540 wrote to memory of 4588 N/A C:\Users\Admin\AppData\Local\Temp\dfd644643f1804bf9081c3973f129ec6323500ec265328ce6274b3d087c56b4c.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nsB38fM72.exe
PID 1540 wrote to memory of 4588 N/A C:\Users\Admin\AppData\Local\Temp\dfd644643f1804bf9081c3973f129ec6323500ec265328ce6274b3d087c56b4c.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nsB38fM72.exe
PID 1540 wrote to memory of 4588 N/A C:\Users\Admin\AppData\Local\Temp\dfd644643f1804bf9081c3973f129ec6323500ec265328ce6274b3d087c56b4c.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nsB38fM72.exe
PID 4588 wrote to memory of 3724 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nsB38fM72.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dzk03vs.exe
PID 4588 wrote to memory of 3724 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nsB38fM72.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dzk03vs.exe
PID 4588 wrote to memory of 764 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nsB38fM72.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eeS39WU.exe
PID 4588 wrote to memory of 764 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nsB38fM72.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eeS39WU.exe
PID 4588 wrote to memory of 764 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nsB38fM72.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eeS39WU.exe
PID 1540 wrote to memory of 3216 N/A C:\Users\Admin\AppData\Local\Temp\dfd644643f1804bf9081c3973f129ec6323500ec265328ce6274b3d087c56b4c.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fbW08rd.exe
PID 1540 wrote to memory of 3216 N/A C:\Users\Admin\AppData\Local\Temp\dfd644643f1804bf9081c3973f129ec6323500ec265328ce6274b3d087c56b4c.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fbW08rd.exe
PID 1540 wrote to memory of 3216 N/A C:\Users\Admin\AppData\Local\Temp\dfd644643f1804bf9081c3973f129ec6323500ec265328ce6274b3d087c56b4c.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fbW08rd.exe

Processes

C:\Users\Admin\AppData\Local\Temp\dfd644643f1804bf9081c3973f129ec6323500ec265328ce6274b3d087c56b4c.exe

"C:\Users\Admin\AppData\Local\Temp\dfd644643f1804bf9081c3973f129ec6323500ec265328ce6274b3d087c56b4c.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nsB38fM72.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nsB38fM72.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dzk03vs.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dzk03vs.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eeS39WU.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eeS39WU.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 764 -ip 764

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 1080

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fbW08rd.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fbW08rd.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
RU 193.233.20.13:4136 tcp
US 8.8.8.8:53 149.220.183.52.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\nsB38fM72.exe

MD5 f8679cff5ae694303de19980140b1f5f
SHA1 592e0cb4df977e29d41c915278f52ccc9c5967ad
SHA256 00baa29c645a2644e1dc018315d3fbc5557b8cef95ce2041f051711dc74c6074
SHA512 c04984f409d1ec03a60a368ca353002dac4006355cf880e5a74c0dd8520b9657884c6c50244f62cee8979179f7f6af42181519f5b0256b028fbdd5dfcf1d2fa7

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\dzk03vs.exe

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

memory/3724-14-0x00007FFD35C63000-0x00007FFD35C65000-memory.dmp

memory/3724-15-0x0000000000390000-0x000000000039A000-memory.dmp

memory/3724-16-0x00007FFD35C63000-0x00007FFD35C65000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eeS39WU.exe

MD5 74111f0699a5f65cdfb559f2af78154c
SHA1 58376a31374ab99c61fdef725bebb226d492fc04
SHA256 dfe07e9dd1c71fdcfda38e19a37447ad61a65764d51dca2bccecc31e73d914df
SHA512 0490a7d5ca1e56998a38022dc55e4ec730aa9f160bd85c8e16e44488fca04e7652ac2024c36e8c15e6de4f3128dbdfc0b0364ca472fe2b6beb51fde3884b8562

memory/764-22-0x00000000024D0000-0x00000000024EA000-memory.dmp

memory/764-23-0x0000000004C30000-0x00000000051D4000-memory.dmp

memory/764-24-0x0000000002670000-0x0000000002688000-memory.dmp

memory/764-38-0x0000000002670000-0x0000000002682000-memory.dmp

memory/764-52-0x0000000002670000-0x0000000002682000-memory.dmp

memory/764-51-0x0000000002670000-0x0000000002682000-memory.dmp

memory/764-49-0x0000000002670000-0x0000000002682000-memory.dmp

memory/764-46-0x0000000002670000-0x0000000002682000-memory.dmp

memory/764-44-0x0000000002670000-0x0000000002682000-memory.dmp

memory/764-42-0x0000000002670000-0x0000000002682000-memory.dmp

memory/764-40-0x0000000002670000-0x0000000002682000-memory.dmp

memory/764-36-0x0000000002670000-0x0000000002682000-memory.dmp

memory/764-34-0x0000000002670000-0x0000000002682000-memory.dmp

memory/764-32-0x0000000002670000-0x0000000002682000-memory.dmp

memory/764-30-0x0000000002670000-0x0000000002682000-memory.dmp

memory/764-28-0x0000000002670000-0x0000000002682000-memory.dmp

memory/764-26-0x0000000002670000-0x0000000002682000-memory.dmp

memory/764-25-0x0000000002670000-0x0000000002682000-memory.dmp

memory/764-53-0x0000000000400000-0x000000000056F000-memory.dmp

memory/764-55-0x0000000000400000-0x000000000056F000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fbW08rd.exe

MD5 a5f5c5d6291c7ae9e1d1b7ed1e551490
SHA1 3d06413341893b838549939e15f8f1eec423d71a
SHA256 1a09ce1cb64219a5d88e57845dc9ba6631efa06fccc8867ccf94eb132947563e
SHA512 d9b3ba67bdd615ee2ce91a29cd9cf6723464be27bf45186fd0e9559ff2b0e7c51b423cfc3e32b5e90955046fb75a34c4a8528df7294b6c831ca254a65d2b8ba2

memory/3216-59-0x0000000000E70000-0x0000000000EA2000-memory.dmp

memory/3216-60-0x0000000005D00000-0x0000000006318000-memory.dmp

memory/3216-61-0x0000000005810000-0x000000000591A000-memory.dmp

memory/3216-62-0x0000000005740000-0x0000000005752000-memory.dmp

memory/3216-63-0x00000000057C0000-0x00000000057FC000-memory.dmp

memory/3216-64-0x0000000005920000-0x000000000596C000-memory.dmp