Malware Analysis Report

2025-03-14 23:29

Sample ID 240407-w3qcvsbc92
Target 0a62648b58924d0434ab6d9951fc5d311a707f9bb34f4334b479dcd85684d550
SHA256 0a62648b58924d0434ab6d9951fc5d311a707f9bb34f4334b479dcd85684d550
Tags
persistence
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

0a62648b58924d0434ab6d9951fc5d311a707f9bb34f4334b479dcd85684d550

Threat Level: Shows suspicious behavior

The file 0a62648b58924d0434ab6d9951fc5d311a707f9bb34f4334b479dcd85684d550 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 AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-07 18:27

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 18:27

Reported

2024-04-07 18:29

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

150s

Command Line

C:\Windows\Explorer.EXE

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Devistsc\dpnsentc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\~5CF5.tmp N/A
N/A N/A C:\Windows\SysWOW64\certcopy.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\extrstnm = "C:\\Users\\Admin\\AppData\\Roaming\\Devistsc\\dpnsentc.exe" C:\Users\Admin\AppData\Local\Temp\0a62648b58924d0434ab6d9951fc5d311a707f9bb34f4334b479dcd85684d550.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\certcopy.exe C:\Users\Admin\AppData\Local\Temp\0a62648b58924d0434ab6d9951fc5d311a707f9bb34f4334b479dcd85684d550.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Devistsc\dpnsentc.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Devistsc\dpnsentc.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\Devistsc\dpnsentc.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\0a62648b58924d0434ab6d9951fc5d311a707f9bb34f4334b479dcd85684d550.exe

"C:\Users\Admin\AppData\Local\Temp\0a62648b58924d0434ab6d9951fc5d311a707f9bb34f4334b479dcd85684d550.exe"

C:\Users\Admin\AppData\Roaming\Devistsc\dpnsentc.exe

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

C:\Windows\SysWOW64\certcopy.exe

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

C:\Users\Admin\AppData\Local\Temp\~5CF5.tmp

3440 499208 652 1

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 215.143.182.52.in-addr.arpa udp

Files

memory/3496-0-0x0000000000400000-0x000000000047F000-memory.dmp

memory/3496-1-0x0000000000510000-0x0000000000592000-memory.dmp

C:\Users\Admin\AppData\Roaming\Devistsc\dpnsentc.exe

MD5 999f5c335c794be9018247e2d031dc7e
SHA1 ca2e69b9de1e13e0c3eab23d8deca8e77cdc6053
SHA256 be312927d5a78b5cebde51d4f9fd7e19ce2e0538fe4518ef7ac5f1ff387e8829
SHA512 65e292e4ad3abeac703a48358deeff080d8212c2c20b1390b37b820b89af1896a12765f6c280cf37e11f9293253e2e670c8f42b83aecb616643bd6cc8d8d69d8

C:\Users\Admin\AppData\Local\Temp\~5CF5.tmp

MD5 86dc243576cf5c7445451af37631eea9
SHA1 99a81c47c4c02f32c0ab456bfa23c306c7a09bf9
SHA256 25d2a671e1b5b5b95697ac0234ce4d46e0d0894919521b54aabebd9daecf994a
SHA512 c7310524f9b65f811146c1eb6ae944966351ac88a95fbc1ac422d8810730e5e212a7e28090ad758ea23c96ba38073e7fcf42460575e7f09dbc759a45c5d5a4a4

memory/652-12-0x0000000000400000-0x000000000047F000-memory.dmp

memory/652-17-0x0000000000650000-0x0000000000655000-memory.dmp

memory/3440-19-0x0000000008700000-0x0000000008706000-memory.dmp

memory/1640-21-0x0000000000480000-0x0000000000502000-memory.dmp

memory/3496-24-0x0000000000400000-0x000000000047F000-memory.dmp

memory/3440-22-0x0000000008710000-0x000000000871D000-memory.dmp

memory/1640-20-0x0000000000400000-0x000000000047F000-memory.dmp

memory/652-16-0x0000000000560000-0x00000000005E2000-memory.dmp

memory/3440-15-0x0000000008FD0000-0x0000000009059000-memory.dmp

memory/3440-13-0x0000000008FD0000-0x0000000009059000-memory.dmp

memory/1640-26-0x0000000000480000-0x0000000000502000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 18:27

Reported

2024-04-07 18:29

Platform

win7-20240221-en

Max time kernel

150s

Max time network

123s

Command Line

C:\Windows\Explorer.EXE

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\cmdkvr32\expl_ssp.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\~1786.tmp N/A
N/A N/A C:\Windows\SysWOW64\bthufmon.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\bthudt32 = "C:\\Users\\Admin\\AppData\\Roaming\\cmdkvr32\\expl_ssp.exe" C:\Users\Admin\AppData\Local\Temp\0a62648b58924d0434ab6d9951fc5d311a707f9bb34f4334b479dcd85684d550.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\bthufmon.exe C:\Users\Admin\AppData\Local\Temp\0a62648b58924d0434ab6d9951fc5d311a707f9bb34f4334b479dcd85684d550.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\cmdkvr32\expl_ssp.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\cmdkvr32\expl_ssp.exe N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\0a62648b58924d0434ab6d9951fc5d311a707f9bb34f4334b479dcd85684d550.exe

"C:\Users\Admin\AppData\Local\Temp\0a62648b58924d0434ab6d9951fc5d311a707f9bb34f4334b479dcd85684d550.exe"

C:\Users\Admin\AppData\Roaming\cmdkvr32\expl_ssp.exe

"C:\Users\Admin\AppData\Roaming\cmdkvr32"

C:\Users\Admin\AppData\Local\Temp\~1786.tmp

1192 499208 1652 1

C:\Windows\SysWOW64\bthufmon.exe

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

Network

N/A

Files

memory/1976-1-0x0000000000480000-0x0000000000502000-memory.dmp

memory/1976-0-0x0000000000400000-0x000000000047F000-memory.dmp

\Users\Admin\AppData\Roaming\cmdkvr32\expl_ssp.exe

MD5 af6de7d378fda1d2b662e5658a73ff93
SHA1 344d17b8143d7737dde5e721c59a68e3bec373c5
SHA256 dea17efb6ec04cf4ea0f519573d761b49f3e5277b755050d67108fb1cd42cc10
SHA512 f61cabea8841ffa446799c979cc36b73a856522fa91f8f195b27d8ffec1e28cc34bed96f48df7eb810e07dec2654aec14a8b99bfb02b49c9be0e029350898c68

memory/1976-5-0x00000000084D0000-0x000000000854F000-memory.dmp

memory/1976-11-0x00000000084D0000-0x000000000854F000-memory.dmp

memory/1652-19-0x00000000002D0000-0x00000000002D5000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\~1786.tmp

MD5 86dc243576cf5c7445451af37631eea9
SHA1 99a81c47c4c02f32c0ab456bfa23c306c7a09bf9
SHA256 25d2a671e1b5b5b95697ac0234ce4d46e0d0894919521b54aabebd9daecf994a
SHA512 c7310524f9b65f811146c1eb6ae944966351ac88a95fbc1ac422d8810730e5e212a7e28090ad758ea23c96ba38073e7fcf42460575e7f09dbc759a45c5d5a4a4

memory/1192-21-0x0000000004550000-0x00000000045D9000-memory.dmp

memory/1192-20-0x0000000004550000-0x00000000045D9000-memory.dmp

memory/1652-15-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/1192-22-0x0000000004550000-0x00000000045D9000-memory.dmp

memory/2052-29-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1192-26-0x0000000002FD0000-0x0000000002FDD000-memory.dmp

memory/1192-25-0x0000000002E60000-0x0000000002E66000-memory.dmp

memory/1976-34-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1652-32-0x0000000000400000-0x000000000047F000-memory.dmp

memory/2052-30-0x0000000002E60000-0x0000000002E66000-memory.dmp

memory/2052-36-0x0000000002E60000-0x0000000002E66000-memory.dmp