Malware Analysis Report

2025-03-14 23:32

Sample ID 240407-w6zeyabd83
Target 0cd027dc941cf04891d3b7a1bae276db8f83abcc53c4389e6a868a308d433a34
SHA256 0cd027dc941cf04891d3b7a1bae276db8f83abcc53c4389e6a868a308d433a34
Tags
persistence
score
7/10

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
7/10

SHA256

0cd027dc941cf04891d3b7a1bae276db8f83abcc53c4389e6a868a308d433a34

Threat Level: Shows suspicious behavior

The file 0cd027dc941cf04891d3b7a1bae276db8f83abcc53c4389e6a868a308d433a34 was found to be: Shows suspicious behavior.

Malicious Activity Summary

persistence

Executes dropped EXE

Loads dropped DLL

Adds Run key to start application

Drops file in System32 directory

Unsigned PE

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-07 18:32

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 18:32

Reported

2024-04-07 18:36

Platform

win7-20240221-en

Max time kernel

174s

Max time network

142s

Command Line

C:\Windows\Explorer.EXE

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\HOSTutil\perfcopy.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\~148.tmp N/A
N/A N/A C:\Windows\SysWOW64\sortkmgr.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000\Software\Microsoft\Windows\CurrentVersion\Run\cscrsort = "C:\\Users\\Admin\\AppData\\Roaming\\HOSTutil\\perfcopy.exe" C:\Users\Admin\AppData\Local\Temp\0cd027dc941cf04891d3b7a1bae276db8f83abcc53c4389e6a868a308d433a34.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\sortkmgr.exe C:\Users\Admin\AppData\Local\Temp\0cd027dc941cf04891d3b7a1bae276db8f83abcc53c4389e6a868a308d433a34.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\HOSTutil\perfcopy.exe N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\HOSTutil\perfcopy.exe N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\0cd027dc941cf04891d3b7a1bae276db8f83abcc53c4389e6a868a308d433a34.exe

"C:\Users\Admin\AppData\Local\Temp\0cd027dc941cf04891d3b7a1bae276db8f83abcc53c4389e6a868a308d433a34.exe"

C:\Users\Admin\AppData\Roaming\HOSTutil\perfcopy.exe

"C:\Users\Admin\AppData\Roaming\HOSTutil"

C:\Users\Admin\AppData\Local\Temp\~148.tmp

1368 475144 2696 1

C:\Windows\SysWOW64\sortkmgr.exe

C:\Windows\SysWOW64\sortkmgr.exe -s

Network

N/A

Files

memory/2536-0-0x0000000000400000-0x000000000047A000-memory.dmp

memory/2536-1-0x00000000002F0000-0x000000000036D000-memory.dmp

\Users\Admin\AppData\Roaming\HOSTutil\perfcopy.exe

MD5 dee049bfc38af4d6fbc53fd1cabc1faf
SHA1 27e0c7f18f7ba593d416758e110a5757ecbba6a2
SHA256 063c6caa4aadd908ac26aa514891608a29ba979a32b78c7a06ccdf98249e7e34
SHA512 d1204d454424f839a2e7757a229c7bbe244f976638598c227b872267a195bf2a9828571b7cba537931fe9474cf4d58365aa73b0fcec6f312cedb000320fec4fd

memory/2536-5-0x0000000000480000-0x00000000004FA000-memory.dmp

memory/2696-13-0x0000000000220000-0x000000000029D000-memory.dmp

memory/2696-15-0x00000000002C0000-0x00000000002C5000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\~148.tmp

MD5 86dc243576cf5c7445451af37631eea9
SHA1 99a81c47c4c02f32c0ab456bfa23c306c7a09bf9
SHA256 25d2a671e1b5b5b95697ac0234ce4d46e0d0894919521b54aabebd9daecf994a
SHA512 c7310524f9b65f811146c1eb6ae944966351ac88a95fbc1ac422d8810730e5e212a7e28090ad758ea23c96ba38073e7fcf42460575e7f09dbc759a45c5d5a4a4

memory/1368-19-0x0000000003B80000-0x0000000003C04000-memory.dmp

memory/1368-20-0x0000000003B80000-0x0000000003C04000-memory.dmp

memory/1368-24-0x0000000002640000-0x000000000264D000-memory.dmp

memory/1368-23-0x0000000002630000-0x0000000002636000-memory.dmp

memory/1368-21-0x0000000003B80000-0x0000000003C04000-memory.dmp

memory/2696-28-0x0000000000400000-0x000000000047A000-memory.dmp

memory/2536-29-0x00000000002F0000-0x000000000036D000-memory.dmp

memory/1876-33-0x0000000002640000-0x000000000264D000-memory.dmp

memory/1876-32-0x0000000000400000-0x000000000047A000-memory.dmp

memory/1876-34-0x0000000002640000-0x000000000264D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 18:32

Reported

2024-04-07 18:35

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

152s

Command Line

C:\Windows\Explorer.EXE

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\forfsync\fontup16.exe N/A
N/A N/A C:\Windows\SysWOW64\convnger.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\~6B5C.tmp N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Gamedown = "C:\\Users\\Admin\\AppData\\Roaming\\forfsync\\fontup16.exe" C:\Users\Admin\AppData\Local\Temp\0cd027dc941cf04891d3b7a1bae276db8f83abcc53c4389e6a868a308d433a34.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\convnger.exe C:\Users\Admin\AppData\Local\Temp\0cd027dc941cf04891d3b7a1bae276db8f83abcc53c4389e6a868a308d433a34.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\forfsync\fontup16.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\forfsync\fontup16.exe N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\forfsync\fontup16.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\0cd027dc941cf04891d3b7a1bae276db8f83abcc53c4389e6a868a308d433a34.exe

"C:\Users\Admin\AppData\Local\Temp\0cd027dc941cf04891d3b7a1bae276db8f83abcc53c4389e6a868a308d433a34.exe"

C:\Users\Admin\AppData\Roaming\forfsync\fontup16.exe

"C:\Users\Admin\AppData\Roaming\forfsync"

C:\Windows\SysWOW64\convnger.exe

C:\Windows\SysWOW64\convnger.exe -s

C:\Users\Admin\AppData\Local\Temp\~6B5C.tmp

3496 475144 1552 1

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 99.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 4.173.189.20.in-addr.arpa udp

Files

memory/3004-0-0x0000000000400000-0x000000000047A000-memory.dmp

memory/3004-1-0x0000000000560000-0x00000000005DD000-memory.dmp

C:\Users\Admin\AppData\Roaming\forfsync\fontup16.exe

MD5 70b5633d16c93cc4f209fb45c8b072c1
SHA1 3ec5d6cc068975398e6b86b46f18cb97ae705a20
SHA256 f8ac30ec3d5b51a8afc972319cfb9f0cd0876a8fc808f865a671371aacb2c85a
SHA512 c6967c2dc7de5ef496820f81b5d2202cb23491b01e7d5a07d42a0c5588cc08b5e86ac22ca8813a7d527712971cf22da877b788494889bfedc6971ca0807d13d3

C:\Users\Admin\AppData\Local\Temp\~6B5C.tmp

MD5 86dc243576cf5c7445451af37631eea9
SHA1 99a81c47c4c02f32c0ab456bfa23c306c7a09bf9
SHA256 25d2a671e1b5b5b95697ac0234ce4d46e0d0894919521b54aabebd9daecf994a
SHA512 c7310524f9b65f811146c1eb6ae944966351ac88a95fbc1ac422d8810730e5e212a7e28090ad758ea23c96ba38073e7fcf42460575e7f09dbc759a45c5d5a4a4

memory/3496-18-0x0000000008AC0000-0x0000000008B44000-memory.dmp

memory/1552-19-0x00000000004A0000-0x00000000004A5000-memory.dmp

memory/3496-23-0x0000000008720000-0x0000000008726000-memory.dmp

memory/3496-25-0x0000000008960000-0x000000000896D000-memory.dmp

memory/1552-27-0x0000000000400000-0x000000000047A000-memory.dmp

memory/3004-22-0x0000000000400000-0x000000000047A000-memory.dmp

memory/3496-17-0x0000000008AC0000-0x0000000008B44000-memory.dmp

memory/2580-16-0x00000000006E0000-0x000000000075D000-memory.dmp

memory/2580-13-0x0000000000400000-0x000000000047A000-memory.dmp

memory/1552-11-0x00000000006E0000-0x000000000075D000-memory.dmp

memory/1552-6-0x0000000000400000-0x000000000047A000-memory.dmp

memory/2580-29-0x00000000006E0000-0x000000000075D000-memory.dmp