Malware Analysis Report

2025-01-23 07:47

Sample ID 241107-rppryswncp
Target 87d535900d5ce8505f55b4196c237f91104cd18345e703e7291eaf42b1953b57
SHA256 87d535900d5ce8505f55b4196c237f91104cd18345e703e7291eaf42b1953b57
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

87d535900d5ce8505f55b4196c237f91104cd18345e703e7291eaf42b1953b57

Threat Level: Known bad

The file 87d535900d5ce8505f55b4196c237f91104cd18345e703e7291eaf42b1953b57 was found to be: Known bad.

Malicious Activity Summary

healer redline fukia discovery dropper evasion infostealer persistence trojan

Healer family

Redline family

Healer

Detects Healer an antivirus disabler dropper

Modifies Windows Defender Real-time Protection settings

RedLine payload

RedLine

Executes dropped EXE

Windows security modification

Adds Run key to start application

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-07 14:22

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-07 14:22

Reported

2024-11-07 14:24

Platform

win10v2004-20241007-en

Max time kernel

126s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\87d535900d5ce8505f55b4196c237f91104cd18345e703e7291eaf42b1953b57.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\diu23yS.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\diu23yS.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\eFC67WK.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\eFC67WK.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\eFC67WK.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\eFC67WK.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\eFC67WK.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\diu23yS.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\diu23yS.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\diu23yS.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\diu23yS.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eFC67WK.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\diu23yS.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eFC67WK.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eFC67WK.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\87d535900d5ce8505f55b4196c237f91104cd18345e703e7291eaf42b1953b57.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\nRo58Ep61.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\87d535900d5ce8505f55b4196c237f91104cd18345e703e7291eaf42b1953b57.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nRo58Ep61.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eFC67WK.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fGW47Wn.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\diu23yS.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eFC67WK.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 232 wrote to memory of 2588 N/A C:\Users\Admin\AppData\Local\Temp\87d535900d5ce8505f55b4196c237f91104cd18345e703e7291eaf42b1953b57.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nRo58Ep61.exe
PID 232 wrote to memory of 2588 N/A C:\Users\Admin\AppData\Local\Temp\87d535900d5ce8505f55b4196c237f91104cd18345e703e7291eaf42b1953b57.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nRo58Ep61.exe
PID 232 wrote to memory of 2588 N/A C:\Users\Admin\AppData\Local\Temp\87d535900d5ce8505f55b4196c237f91104cd18345e703e7291eaf42b1953b57.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nRo58Ep61.exe
PID 2588 wrote to memory of 4696 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nRo58Ep61.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\diu23yS.exe
PID 2588 wrote to memory of 4696 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nRo58Ep61.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\diu23yS.exe
PID 2588 wrote to memory of 2236 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nRo58Ep61.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eFC67WK.exe
PID 2588 wrote to memory of 2236 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nRo58Ep61.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eFC67WK.exe
PID 2588 wrote to memory of 2236 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nRo58Ep61.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eFC67WK.exe
PID 232 wrote to memory of 4600 N/A C:\Users\Admin\AppData\Local\Temp\87d535900d5ce8505f55b4196c237f91104cd18345e703e7291eaf42b1953b57.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fGW47Wn.exe
PID 232 wrote to memory of 4600 N/A C:\Users\Admin\AppData\Local\Temp\87d535900d5ce8505f55b4196c237f91104cd18345e703e7291eaf42b1953b57.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fGW47Wn.exe
PID 232 wrote to memory of 4600 N/A C:\Users\Admin\AppData\Local\Temp\87d535900d5ce8505f55b4196c237f91104cd18345e703e7291eaf42b1953b57.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fGW47Wn.exe

Processes

C:\Users\Admin\AppData\Local\Temp\87d535900d5ce8505f55b4196c237f91104cd18345e703e7291eaf42b1953b57.exe

"C:\Users\Admin\AppData\Local\Temp\87d535900d5ce8505f55b4196c237f91104cd18345e703e7291eaf42b1953b57.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nRo58Ep61.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nRo58Ep61.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\diu23yS.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\diu23yS.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eFC67WK.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eFC67WK.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2236 -ip 2236

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2236 -s 1004

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fGW47Wn.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fGW47Wn.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 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
RU 193.233.20.13:4136 tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
RU 193.233.20.13:4136 tcp
US 8.8.8.8:53 73.209.201.84.in-addr.arpa udp
RU 193.233.20.13:4136 tcp
US 8.8.8.8:53 48.229.111.52.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\nRo58Ep61.exe

MD5 a049b4de081047116003d83d47dc120f
SHA1 5ffefff19179bc9c1ae343677b1be8b2894acda0
SHA256 6aec02cfc4070edba964c154be503c37d3550f6671d5528d3bfd1b7d038ecbff
SHA512 5d87922fa19e00a29f426542ad9adf3b3f8d8f41a371958c95c73441928eb0ccdad997c86da5cb380626b1c84b92ffbb147304c29c5b067200490c9c7b9187b1

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\diu23yS.exe

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

memory/4696-14-0x00007FFE592B3000-0x00007FFE592B5000-memory.dmp

memory/4696-15-0x00000000005F0000-0x00000000005FA000-memory.dmp

memory/4696-16-0x00007FFE592B3000-0x00007FFE592B5000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\eFC67WK.exe

MD5 2c5daade6cc93f76114b06d1777c7786
SHA1 108f23add9f97b469b264b136e4ed6076e73de90
SHA256 195831618f4971eda5b00d51d892b4bf7b6519d79b278e2d477a1dfb56b91fbf
SHA512 f074459406c33eabae671e63ca2d6dd7087db63fc1ab338cb721b97735085c7b828c920005111c4ed3d101a6e607e0e100805f417518ffcef4a70551bb2e3814

memory/2236-22-0x00000000025A0000-0x00000000025BA000-memory.dmp

memory/2236-23-0x0000000004EA0000-0x0000000005444000-memory.dmp

memory/2236-24-0x0000000002850000-0x0000000002868000-memory.dmp

memory/2236-25-0x0000000002850000-0x0000000002862000-memory.dmp

memory/2236-32-0x0000000002850000-0x0000000002862000-memory.dmp

memory/2236-52-0x0000000002850000-0x0000000002862000-memory.dmp

memory/2236-51-0x0000000002850000-0x0000000002862000-memory.dmp

memory/2236-48-0x0000000002850000-0x0000000002862000-memory.dmp

memory/2236-46-0x0000000002850000-0x0000000002862000-memory.dmp

memory/2236-44-0x0000000002850000-0x0000000002862000-memory.dmp

memory/2236-42-0x0000000002850000-0x0000000002862000-memory.dmp

memory/2236-40-0x0000000002850000-0x0000000002862000-memory.dmp

memory/2236-38-0x0000000002850000-0x0000000002862000-memory.dmp

memory/2236-36-0x0000000002850000-0x0000000002862000-memory.dmp

memory/2236-34-0x0000000002850000-0x0000000002862000-memory.dmp

memory/2236-30-0x0000000002850000-0x0000000002862000-memory.dmp

memory/2236-28-0x0000000002850000-0x0000000002862000-memory.dmp

memory/2236-26-0x0000000002850000-0x0000000002862000-memory.dmp

memory/2236-53-0x0000000000400000-0x00000000007BD000-memory.dmp

memory/2236-55-0x0000000000400000-0x00000000007BD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fGW47Wn.exe

MD5 a5f5c5d6291c7ae9e1d1b7ed1e551490
SHA1 3d06413341893b838549939e15f8f1eec423d71a
SHA256 1a09ce1cb64219a5d88e57845dc9ba6631efa06fccc8867ccf94eb132947563e
SHA512 d9b3ba67bdd615ee2ce91a29cd9cf6723464be27bf45186fd0e9559ff2b0e7c51b423cfc3e32b5e90955046fb75a34c4a8528df7294b6c831ca254a65d2b8ba2

memory/4600-59-0x0000000000AF0000-0x0000000000B22000-memory.dmp

memory/4600-60-0x0000000005950000-0x0000000005F68000-memory.dmp

memory/4600-61-0x0000000005490000-0x000000000559A000-memory.dmp

memory/4600-62-0x00000000053C0000-0x00000000053D2000-memory.dmp

memory/4600-63-0x0000000005420000-0x000000000545C000-memory.dmp

memory/4600-64-0x00000000055A0000-0x00000000055EC000-memory.dmp