Malware Analysis Report

2025-04-03 10:42

Sample ID 241109-3d56catlgt
Target f3996931e661afa91410d1ca2f19c9abc21c77d23330bf4b529c3a72bce590c0
SHA256 f3996931e661afa91410d1ca2f19c9abc21c77d23330bf4b529c3a72bce590c0
Tags
redline 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

f3996931e661afa91410d1ca2f19c9abc21c77d23330bf4b529c3a72bce590c0

Threat Level: Known bad

The file f3996931e661afa91410d1ca2f19c9abc21c77d23330bf4b529c3a72bce590c0 was found to be: Known bad.

Malicious Activity Summary

redline 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

2024-11-09 23:24

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 23:24

Reported

2024-11-09 23:27

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

159s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f3996931e661afa91410d1ca2f19c9abc21c77d23330bf4b529c3a72bce590c0.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_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\f3996931e661afa91410d1ca2f19c9abc21c77d23330bf4b529c3a72bce590c0.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\x9231631.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\x4211761.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\f3996931e661afa91410d1ca2f19c9abc21c77d23330bf4b529c3a72bce590c0.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x9231631.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\x4211761.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\g0104599.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4436 wrote to memory of 1932 N/A C:\Users\Admin\AppData\Local\Temp\f3996931e661afa91410d1ca2f19c9abc21c77d23330bf4b529c3a72bce590c0.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x9231631.exe
PID 4436 wrote to memory of 1932 N/A C:\Users\Admin\AppData\Local\Temp\f3996931e661afa91410d1ca2f19c9abc21c77d23330bf4b529c3a72bce590c0.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x9231631.exe
PID 4436 wrote to memory of 1932 N/A C:\Users\Admin\AppData\Local\Temp\f3996931e661afa91410d1ca2f19c9abc21c77d23330bf4b529c3a72bce590c0.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x9231631.exe
PID 1932 wrote to memory of 2144 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x9231631.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\x4211761.exe
PID 1932 wrote to memory of 2144 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x9231631.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\x4211761.exe
PID 1932 wrote to memory of 2144 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x9231631.exe C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\x4211761.exe
PID 2144 wrote to memory of 1132 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\x4211761.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\g0104599.exe
PID 2144 wrote to memory of 1132 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\x4211761.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\g0104599.exe
PID 2144 wrote to memory of 1132 N/A C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\x4211761.exe C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\g0104599.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f3996931e661afa91410d1ca2f19c9abc21c77d23330bf4b529c3a72bce590c0.exe

"C:\Users\Admin\AppData\Local\Temp\f3996931e661afa91410d1ca2f19c9abc21c77d23330bf4b529c3a72bce590c0.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x9231631.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x9231631.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\x4211761.exe

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\x4211761.exe

C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\g0104599.exe

C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\g0104599.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 102.208.201.84.in-addr.arpa udp
FI 77.91.124.111:19069 tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
FI 77.91.124.111:19069 tcp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
FI 77.91.124.111:19069 tcp
FI 77.91.124.111:19069 tcp
FI 77.91.124.111:19069 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
FI 77.91.124.111:19069 tcp
FI 77.91.124.111:19069 tcp
FI 77.91.124.111:19069 tcp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x9231631.exe

MD5 125cdeea3bf489b1b265e92177e15c96
SHA1 f611b87777ffb04d2e5568691012a5220466ca89
SHA256 2d9871f2b5eb6064f3fec124ed0aa827ea8187aae373ab2213f15c7be013c09b
SHA512 6526393aba4de1bdb89aa3f078cec7ab9eca1d1a2635e1e3f32db2bb5093c1a38b9b1c36f8b44b0da86e7e960f2b1acfc4c587a9c877c1f5daa50d56dc24ff8d

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\x4211761.exe

MD5 85a51156c0034dd807eefc336a025318
SHA1 c4ae5d2ea93070ae7e180a73ded79c168a8647b7
SHA256 1b6e804b18d7db18ef629228a3b7c53311f40256ec4959824631cef1de08fecd
SHA512 01d4689a49c9cd80b13745fb280546474055f03381db72dea865eda08cba50217f840cbe3b431dd9c2c3f02df4f34ca4d64d087593eeb15c175661136fcab7b2

C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\g0104599.exe

MD5 260299fdbd09130a1be428ab4c0d82e2
SHA1 8435852769c91746a974858c579a154aad34eb6f
SHA256 e1f730e8bf7b00dbb9b43c0cde7ab7af711ec33a6b4abb102d21bf03a0772e2b
SHA512 3a0f77795b7ae5930a50a4b62c26580480c91cc71a0805bf0a3c2f33a99a11c05a0d865e38fc1dbfefa78289c03df3ac484359264addbdf0ea9a46ab9c94ae02

memory/1132-21-0x0000000000040000-0x0000000000068000-memory.dmp

memory/1132-22-0x00000000073A0000-0x00000000079B8000-memory.dmp

memory/1132-23-0x0000000006DA0000-0x0000000006DB2000-memory.dmp

memory/1132-24-0x0000000006ED0000-0x0000000006FDA000-memory.dmp

memory/1132-25-0x0000000006E00000-0x0000000006E3C000-memory.dmp

memory/1132-26-0x00000000021F0000-0x000000000223C000-memory.dmp