Malware Analysis Report

2025-03-15 05:43

Sample ID 240509-bcm5labh82
Target b57898828a606cbd0805e0b1026f3360_NEIKI
SHA256 8064c8cd692c06380045502805adab88ddce583e0780d537d6d5051cf1eb9a01
Tags
aspackv2 persistence
score
8/10

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
8/10

SHA256

8064c8cd692c06380045502805adab88ddce583e0780d537d6d5051cf1eb9a01

Threat Level: Likely malicious

The file b57898828a606cbd0805e0b1026f3360_NEIKI was found to be: Likely malicious.

Malicious Activity Summary

aspackv2 persistence

Modifies AppInit DLL entries

ASPack v2.12-2.42

Executes dropped EXE

Drops file in Program Files directory

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-09 01:00

Signatures

ASPack v2.12-2.42

aspackv2
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

2024-05-09 01:00

Reported

2024-05-09 01:02

Platform

win7-20240508-en

Max time kernel

118s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b57898828a606cbd0805e0b1026f3360_NEIKI.exe"

Signatures

Modifies AppInit DLL entries

persistence

ASPack v2.12-2.42

aspackv2
Description Indicator Process Target
N/A N/A N/A N/A

Executes dropped EXE

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

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\Mozilla\gugcane.exe C:\Users\Admin\AppData\Local\Temp\b57898828a606cbd0805e0b1026f3360_NEIKI.exe N/A
File created C:\PROGRA~3\Mozilla\zynbtfl.dll C:\PROGRA~3\Mozilla\gugcane.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b57898828a606cbd0805e0b1026f3360_NEIKI.exe N/A
N/A N/A C:\PROGRA~3\Mozilla\gugcane.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2180 wrote to memory of 3020 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\gugcane.exe
PID 2180 wrote to memory of 3020 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\gugcane.exe
PID 2180 wrote to memory of 3020 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\gugcane.exe
PID 2180 wrote to memory of 3020 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\gugcane.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b57898828a606cbd0805e0b1026f3360_NEIKI.exe

"C:\Users\Admin\AppData\Local\Temp\b57898828a606cbd0805e0b1026f3360_NEIKI.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {2C2CB377-C35C-49F1-9C99-5A0359C35C8D} S-1-5-18:NT AUTHORITY\System:Service:

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

C:\PROGRA~3\Mozilla\gugcane.exe -eoikpie

Network

N/A

Files

memory/2020-2-0x0000000000400000-0x000000000045E000-memory.dmp

memory/2020-1-0x0000000000400000-0x000000000045E000-memory.dmp

memory/2020-0-0x0000000000400000-0x000000000045E000-memory.dmp

memory/2020-4-0x0000000000400000-0x000000000045B000-memory.dmp

memory/2020-3-0x0000000000310000-0x000000000036B000-memory.dmp

memory/2020-6-0x0000000000400000-0x000000000045B000-memory.dmp

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

MD5 c3e0f38b303ad73cd06e4670e8f20c21
SHA1 e1f9753a6f101997e645c427f25aa8af115abee4
SHA256 4ff32ae4f8f4b1d02a394b05e465aae2f84ec906589aa21e57885b698b55d826
SHA512 3d06c42c0e84241e432ac2ee23a7e2e69e434ca260c16771dd89c11368560e75b7172ce4d4a738b7a0ed3cb3cd86e2ca11a965ed1a8ffc4641cf083bcf147c07

memory/3020-11-0x0000000000400000-0x000000000045E000-memory.dmp

memory/3020-10-0x0000000000400000-0x000000000045E000-memory.dmp

memory/3020-9-0x0000000000400000-0x000000000045E000-memory.dmp

memory/3020-12-0x0000000000460000-0x00000000004BB000-memory.dmp

memory/3020-13-0x0000000000400000-0x000000000045B000-memory.dmp

memory/3020-15-0x0000000000400000-0x000000000045B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-09 01:00

Reported

2024-05-09 01:02

Platform

win10v2004-20240508-en

Max time kernel

92s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b57898828a606cbd0805e0b1026f3360_NEIKI.exe"

Signatures

Modifies AppInit DLL entries

persistence

ASPack v2.12-2.42

aspackv2
Description Indicator Process Target
N/A N/A N/A N/A

Executes dropped EXE

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

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\Mozilla\onvmijj.exe C:\Users\Admin\AppData\Local\Temp\b57898828a606cbd0805e0b1026f3360_NEIKI.exe N/A
File created C:\PROGRA~3\Mozilla\gmzywaj.dll C:\PROGRA~3\Mozilla\onvmijj.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b57898828a606cbd0805e0b1026f3360_NEIKI.exe

"C:\Users\Admin\AppData\Local\Temp\b57898828a606cbd0805e0b1026f3360_NEIKI.exe"

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

C:\PROGRA~3\Mozilla\onvmijj.exe -ibpmpgd

Network

Country Destination Domain Proto
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp

Files

memory/1732-0-0x0000000000400000-0x000000000045E000-memory.dmp

memory/1732-2-0x0000000000400000-0x000000000045E000-memory.dmp

memory/1732-1-0x0000000000400000-0x000000000045E000-memory.dmp

memory/1732-3-0x0000000001FA0000-0x0000000001FFB000-memory.dmp

memory/1732-4-0x0000000000400000-0x000000000045B000-memory.dmp

C:\ProgramData\Mozilla\onvmijj.exe

MD5 9c7a89f488a5a909f6614fd8098b435b
SHA1 d442785ac5ffc96203db54fb09aeec31b0dd0344
SHA256 55089e2b517b9d16dec081ae39e41014a6e87f71af4a98e30e956c0b3bf9dfdd
SHA512 d6653f9e1208a8fcf0e1c24793cd94e4977a636ced7fe16a45c3ea4b3783d2a2ad34eb4067175f3b64c8c8f43e8c11da09e74461b38969cf658ff5317cd6923e

memory/3704-8-0x0000000000400000-0x000000000045E000-memory.dmp

memory/3704-10-0x0000000000400000-0x000000000045E000-memory.dmp

memory/3704-13-0x0000000000400000-0x000000000045E000-memory.dmp

memory/3704-12-0x0000000000400000-0x000000000045E000-memory.dmp

memory/1732-11-0x0000000000400000-0x000000000045B000-memory.dmp

memory/3704-16-0x0000000000400000-0x000000000045B000-memory.dmp