Malware Analysis Report

2025-01-23 07:46

Sample ID 241108-cavbkasflh
Target b5c7b70ac67f0424726c9223e0b2e850953e09ce3d9d169c8d2d46c2048daf97
SHA256 b5c7b70ac67f0424726c9223e0b2e850953e09ce3d9d169c8d2d46c2048daf97
Tags
redline fukia discovery infostealer persistence
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

b5c7b70ac67f0424726c9223e0b2e850953e09ce3d9d169c8d2d46c2048daf97

Threat Level: Known bad

The file b5c7b70ac67f0424726c9223e0b2e850953e09ce3d9d169c8d2d46c2048daf97 was found to be: Known bad.

Malicious Activity Summary

redline fukia discovery infostealer persistence

RedLine

RedLine payload

Redline family

Executes dropped EXE

Adds Run key to start application

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-08 01:52

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-08 01:52

Reported

2024-11-08 01:55

Platform

win10v2004-20241007-en

Max time kernel

131s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\275db2bbbd631acf176a14e1830ef2c2bd6037b888b17a291aeb38d4810b0648.exe"

Signatures

RedLine

infostealer redline

RedLine payload

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

Redline family

redline

Adds Run key to start application

persistence
Description Indicator Process Target
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\nFM18DH.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup2 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP002.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\nfc17qG.exe N/A
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\275db2bbbd631acf176a14e1830ef2c2bd6037b888b17a291aeb38d4810b0648.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\IXP002.TMP\bVj86.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\275db2bbbd631acf176a14e1830ef2c2bd6037b888b17a291aeb38d4810b0648.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nFM18DH.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\nfc17qG.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 548 wrote to memory of 4820 N/A C:\Users\Admin\AppData\Local\Temp\275db2bbbd631acf176a14e1830ef2c2bd6037b888b17a291aeb38d4810b0648.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nFM18DH.exe
PID 548 wrote to memory of 4820 N/A C:\Users\Admin\AppData\Local\Temp\275db2bbbd631acf176a14e1830ef2c2bd6037b888b17a291aeb38d4810b0648.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nFM18DH.exe
PID 548 wrote to memory of 4820 N/A C:\Users\Admin\AppData\Local\Temp\275db2bbbd631acf176a14e1830ef2c2bd6037b888b17a291aeb38d4810b0648.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nFM18DH.exe
PID 4820 wrote to memory of 3612 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nFM18DH.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\nfc17qG.exe
PID 4820 wrote to memory of 3612 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nFM18DH.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\nfc17qG.exe
PID 4820 wrote to memory of 3612 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nFM18DH.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\nfc17qG.exe
PID 3612 wrote to memory of 4020 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\nfc17qG.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\bVj86.exe
PID 3612 wrote to memory of 4020 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\nfc17qG.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\bVj86.exe
PID 3612 wrote to memory of 4020 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\nfc17qG.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\bVj86.exe

Processes

C:\Users\Admin\AppData\Local\Temp\275db2bbbd631acf176a14e1830ef2c2bd6037b888b17a291aeb38d4810b0648.exe

"C:\Users\Admin\AppData\Local\Temp\275db2bbbd631acf176a14e1830ef2c2bd6037b888b17a291aeb38d4810b0648.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nFM18DH.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nFM18DH.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\nfc17qG.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\nfc17qG.exe

C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\bVj86.exe

C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\bVj86.exe

Network

Country Destination Domain Proto
RU 193.233.20.13:4136 tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 72.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
RU 193.233.20.13:4136 tcp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
RU 193.233.20.13:4136 tcp
US 8.8.8.8:53 104.209.201.84.in-addr.arpa udp
RU 193.233.20.13:4136 tcp
US 8.8.8.8:53 83.210.23.2.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\nFM18DH.exe

MD5 ba07c0536458c0bfa18729fdb7f9e416
SHA1 1cc8ca367b8ff63aca311daeb03325ad3e54f767
SHA256 1a3c36691ed8655213d6e8633d88051f5dc24a6269b4694b84b1dc67ed571041
SHA512 134f6694f5586273dde825176d10ebb6234720165097a65f4fc3cc00391d0991ea4ac9901f129868e6db37f4868a3948d371c6e1e3e54fb6184d62c0ce92fe74

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\nfc17qG.exe

MD5 f08eb5b9d5b553c4bbb3fdae475eb493
SHA1 05fb6e88642412abc81e5b569882fac6847da7f0
SHA256 0926deb47ebed039a67ae1cd4e8e4c3f59485bc5b414993df26e65054eeb1c25
SHA512 06b276d4645d5a0fa167ec04e9270db1631ffb274b73657c8944e7b742477dfd7faa7f066e7779f22bbd9b3af16f635cbf8d6761c3d515e98252d045fba46827

C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\bVj86.exe

MD5 a5f5c5d6291c7ae9e1d1b7ed1e551490
SHA1 3d06413341893b838549939e15f8f1eec423d71a
SHA256 1a09ce1cb64219a5d88e57845dc9ba6631efa06fccc8867ccf94eb132947563e
SHA512 d9b3ba67bdd615ee2ce91a29cd9cf6723464be27bf45186fd0e9559ff2b0e7c51b423cfc3e32b5e90955046fb75a34c4a8528df7294b6c831ca254a65d2b8ba2

memory/4020-21-0x00000000002A0000-0x00000000002D2000-memory.dmp

memory/4020-22-0x00000000050F0000-0x0000000005708000-memory.dmp

memory/4020-23-0x0000000004C40000-0x0000000004D4A000-memory.dmp

memory/4020-24-0x0000000004B70000-0x0000000004B82000-memory.dmp

memory/4020-25-0x0000000004BE0000-0x0000000004C1C000-memory.dmp

memory/4020-26-0x0000000004D50000-0x0000000004D9C000-memory.dmp