Malware Analysis Report

2025-03-14 23:17

Sample ID 240407-w4zmxsba5s
Target 0bd295018c33c41caa3ad1af9ea1503962649f5637ada9a65410ee3b947f6816
SHA256 0bd295018c33c41caa3ad1af9ea1503962649f5637ada9a65410ee3b947f6816
Tags
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

0bd295018c33c41caa3ad1af9ea1503962649f5637ada9a65410ee3b947f6816

Threat Level: Known bad

The file 0bd295018c33c41caa3ad1af9ea1503962649f5637ada9a65410ee3b947f6816 was found to be: Known bad.

Malicious Activity Summary

persistence

Detects executables packed with ASPack

Detects executables packed with ASPack

Modifies AppInit DLL entries

Executes dropped EXE

Drops file in Program Files directory

Unsigned PE

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-07 18:29

Signatures

Detects executables packed with ASPack

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 18:29

Reported

2024-04-07 18:31

Platform

win7-20231129-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0bd295018c33c41caa3ad1af9ea1503962649f5637ada9a65410ee3b947f6816.exe"

Signatures

Detects executables packed with ASPack

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

Modifies AppInit DLL entries

persistence

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\PROGRA~3\Mozilla\anhxrcb.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\Mozilla\anhxrcb.exe C:\Users\Admin\AppData\Local\Temp\0bd295018c33c41caa3ad1af9ea1503962649f5637ada9a65410ee3b947f6816.exe N/A
File created C:\PROGRA~3\Mozilla\fqurfhn.dll C:\PROGRA~3\Mozilla\anhxrcb.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0bd295018c33c41caa3ad1af9ea1503962649f5637ada9a65410ee3b947f6816.exe N/A
N/A N/A C:\PROGRA~3\Mozilla\anhxrcb.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2988 wrote to memory of 3016 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\anhxrcb.exe
PID 2988 wrote to memory of 3016 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\anhxrcb.exe
PID 2988 wrote to memory of 3016 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\anhxrcb.exe
PID 2988 wrote to memory of 3016 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\anhxrcb.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0bd295018c33c41caa3ad1af9ea1503962649f5637ada9a65410ee3b947f6816.exe

"C:\Users\Admin\AppData\Local\Temp\0bd295018c33c41caa3ad1af9ea1503962649f5637ada9a65410ee3b947f6816.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {4281E4C9-7EF1-4B0E-87D3-2C0B862C6500} S-1-5-18:NT AUTHORITY\System:Service:

C:\PROGRA~3\Mozilla\anhxrcb.exe

C:\PROGRA~3\Mozilla\anhxrcb.exe -wxojhrj

Network

N/A

Files

memory/2888-2-0x0000000000250000-0x00000000002AB000-memory.dmp

memory/2888-1-0x0000000000400000-0x000000000045B000-memory.dmp

memory/2888-0-0x0000000000400000-0x000000000045E000-memory.dmp

memory/2888-4-0x0000000000400000-0x000000000045B000-memory.dmp

C:\PROGRA~3\Mozilla\anhxrcb.exe

MD5 3f61c2abc7c96a2a4bd6e6c69d11bd59
SHA1 e285d4694d8a57d18430045d556c5c667a643f1f
SHA256 5a5e0e12d71b8639806a7d3ce3dbbe47f2806f6f702525674d86e25c5da83564
SHA512 17b0dedf548b998f74f4adde81a43721489fa3d1729a856edce9b4de2551e06b65030fb9533c1afbebcbf59007f24247e47238aad5d82fca09080dccabd67d9b

memory/3016-7-0x0000000000400000-0x000000000045E000-memory.dmp

memory/3016-8-0x00000000008D0000-0x000000000092B000-memory.dmp

memory/3016-9-0x0000000000400000-0x000000000045B000-memory.dmp

memory/3016-11-0x0000000000400000-0x000000000045B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 18:29

Reported

2024-04-07 18:31

Platform

win10v2004-20240226-en

Max time kernel

146s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0bd295018c33c41caa3ad1af9ea1503962649f5637ada9a65410ee3b947f6816.exe"

Signatures

Detects executables packed with ASPack

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

Modifies AppInit DLL entries

persistence

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\PROGRA~3\Mozilla\fwjctpb.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\Mozilla\fwjctpb.exe C:\Users\Admin\AppData\Local\Temp\0bd295018c33c41caa3ad1af9ea1503962649f5637ada9a65410ee3b947f6816.exe N/A
File created C:\PROGRA~3\Mozilla\jqvifpn.dll C:\PROGRA~3\Mozilla\fwjctpb.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0bd295018c33c41caa3ad1af9ea1503962649f5637ada9a65410ee3b947f6816.exe

"C:\Users\Admin\AppData\Local\Temp\0bd295018c33c41caa3ad1af9ea1503962649f5637ada9a65410ee3b947f6816.exe"

C:\PROGRA~3\Mozilla\fwjctpb.exe

C:\PROGRA~3\Mozilla\fwjctpb.exe -qdcpmcc

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 85.65.42.20.in-addr.arpa udp

Files

memory/1184-0-0x0000000000400000-0x000000000045E000-memory.dmp

memory/1184-1-0x00000000021D0000-0x000000000222B000-memory.dmp

memory/1184-3-0x0000000000400000-0x000000000045B000-memory.dmp

C:\ProgramData\Mozilla\fwjctpb.exe

MD5 e265ab24c6931586801af0ea04e25e02
SHA1 cfebf82ce0f49a2e5cd069e6b7a8c4e25c17191e
SHA256 14b925e046fee970ecede63c2693e3694d74e3463d47d32622e4c2607ba2fbbc
SHA512 3067185376fedb81f15f4d9c49e14ade9cbfb5e7eec16fbbff5b4baf160bef2bb283d9265c07140835286d6989de7f75c2721e15f05963850570586a6e4dfd2b

memory/1184-6-0x0000000000400000-0x000000000045E000-memory.dmp

memory/1184-8-0x0000000000400000-0x000000000045B000-memory.dmp

memory/1184-10-0x00000000021D0000-0x000000000222B000-memory.dmp

memory/1900-11-0x0000000000D70000-0x0000000000DCB000-memory.dmp

memory/1900-12-0x0000000000400000-0x000000000045B000-memory.dmp

memory/1900-14-0x0000000000400000-0x000000000045B000-memory.dmp

memory/1900-16-0x0000000000D70000-0x0000000000DCB000-memory.dmp