Malware Analysis Report

2025-08-10 19:27

Sample ID 230716-kyxetsee8s
Target tmp
SHA256 0cffea5daeb941cc6235f4de2fe2ba348ff08742d196ffc68bc8d7f1109596fd
Tags
formbook guloader ms14 discovery downloader rat spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

0cffea5daeb941cc6235f4de2fe2ba348ff08742d196ffc68bc8d7f1109596fd

Threat Level: Known bad

The file tmp was found to be: Known bad.

Malicious Activity Summary

formbook guloader ms14 discovery downloader rat spyware stealer trojan

Formbook

Guloader,Cloudeye

Formbook payload

Checks QEMU agent file

Loads dropped DLL

Checks installed software on the system

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of SetThreadContext

Suspicious use of NtSetInformationThreadHideFromDebugger

Drops file in Program Files directory

Drops file in Windows directory

Enumerates physical storage devices

NSIS installer

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-07-16 09:01

Signatures

NSIS installer

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-07-16 09:01

Reported

2023-07-16 09:03

Platform

win7-20230712-en

Max time kernel

118s

Max time network

122s

Command Line

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

Signatures

Formbook

trojan spyware stealer formbook

Guloader,Cloudeye

downloader guloader

Formbook payload

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

Checks QEMU agent file

Description Indicator Process Target
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A

Checks installed software on the system

discovery

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2428 set thread context of 2840 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Users\Admin\AppData\Local\Temp\tmp.exe

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\Common Files\sansningerne.Unc C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\resources\0409\Katje\falsebenet\Bike\Angivende.ini C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A
File opened for modification C:\Windows\resources\0409\Hovedgaarde.For C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A

Enumerates physical storage devices

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A

Processes

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

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

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

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

Network

Country Destination Domain Proto
US 198.23.156.248:80 198.23.156.248 tcp

Files

\Users\Admin\AppData\Local\Temp\nsj844E.tmp\System.dll

MD5 375e8a08471dc6f85f3828488b1147b3
SHA1 1941484ac710fc301a7d31d6f1345e32a21546af
SHA256 4c86b238e64ecfaabe322a70fd78db229a663ccc209920f3385596a6e3205f78
SHA512 5ba29db13723ddf27b265a4548606274b850d076ae1f050c64044f8ccd020585ad766c85c3e20003a22f356875f76fb3679c89547b0962580d8e5a42b082b9a8

memory/2428-63-0x00000000777C0000-0x0000000077969000-memory.dmp

memory/2428-64-0x00000000779B0000-0x0000000077A86000-memory.dmp

memory/2428-65-0x0000000010000000-0x0000000010006000-memory.dmp

memory/2840-66-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2840-67-0x00000000777C0000-0x0000000077969000-memory.dmp

memory/2840-68-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2840-69-0x0000000001470000-0x0000000006139000-memory.dmp

memory/2840-72-0x0000000001470000-0x0000000006139000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-07-16 09:01

Reported

2023-07-16 09:03

Platform

win10v2004-20230703-en

Max time kernel

149s

Max time network

147s

Command Line

C:\Windows\Explorer.EXE

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

rat
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
N/A N/A N/A N/A

Checks QEMU agent file

Description Indicator Process Target
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A

Checks installed software on the system

discovery

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 744 set thread context of 4204 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Users\Admin\AppData\Local\Temp\tmp.exe
PID 4204 set thread context of 2512 N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe C:\Windows\Explorer.EXE
PID 1080 set thread context of 2512 N/A C:\Windows\SysWOW64\cscript.exe C:\Windows\Explorer.EXE

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\Common Files\sansningerne.Unc C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\resources\0409\Katje\falsebenet\Bike\Angivende.ini C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A
File opened for modification C:\Windows\resources\0409\Hovedgaarde.For C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\tmp.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A
N/A N/A C:\Windows\SysWOW64\cscript.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
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\Local\Temp\tmp.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
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\cscript.exe N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

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

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

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

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

C:\Windows\SysWOW64\cscript.exe

"C:\Windows\SysWOW64\cscript.exe"

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\tmp.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 1.208.79.178.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 54.120.234.20.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 216.74.101.95.in-addr.arpa udp
US 198.23.156.248:80 198.23.156.248 tcp
US 8.8.8.8:53 248.156.23.198.in-addr.arpa udp
US 8.8.8.8:53 86.8.109.52.in-addr.arpa udp
US 8.8.8.8:53 www.buddhabazaar.online udp
US 162.241.225.93:80 www.buddhabazaar.online tcp
US 8.8.8.8:53 93.225.241.162.in-addr.arpa udp
US 8.8.8.8:53 www.wecanshipit.com udp
US 74.208.236.75:80 www.wecanshipit.com tcp
US 8.8.8.8:53 75.236.208.74.in-addr.arpa udp
US 8.8.8.8:53 www.lglcyoy.cfd udp
HK 47.243.5.228:80 www.lglcyoy.cfd tcp
US 8.8.8.8:53 228.5.243.47.in-addr.arpa udp
US 8.8.8.8:53 67.112.168.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\nsk7A51.tmp\System.dll

MD5 375e8a08471dc6f85f3828488b1147b3
SHA1 1941484ac710fc301a7d31d6f1345e32a21546af
SHA256 4c86b238e64ecfaabe322a70fd78db229a663ccc209920f3385596a6e3205f78
SHA512 5ba29db13723ddf27b265a4548606274b850d076ae1f050c64044f8ccd020585ad766c85c3e20003a22f356875f76fb3679c89547b0962580d8e5a42b082b9a8

memory/744-141-0x0000000077001000-0x0000000077121000-memory.dmp

memory/744-142-0x0000000077001000-0x0000000077121000-memory.dmp

memory/744-143-0x0000000010000000-0x0000000010006000-memory.dmp

memory/4204-144-0x0000000000400000-0x0000000001654000-memory.dmp

memory/4204-145-0x0000000000400000-0x0000000001654000-memory.dmp

memory/4204-146-0x0000000077088000-0x0000000077089000-memory.dmp

memory/4204-147-0x0000000000400000-0x0000000001654000-memory.dmp

memory/4204-148-0x0000000001660000-0x0000000006329000-memory.dmp

memory/4204-149-0x00000000367A0000-0x0000000036AEA000-memory.dmp

memory/4204-150-0x0000000000400000-0x0000000001654000-memory.dmp

memory/4204-151-0x0000000036620000-0x0000000036634000-memory.dmp

memory/2512-153-0x0000000008DA0000-0x0000000008F0F000-memory.dmp

memory/1080-154-0x0000000000C80000-0x0000000000CA7000-memory.dmp

memory/1080-155-0x0000000000C80000-0x0000000000CA7000-memory.dmp

memory/4204-157-0x0000000077001000-0x0000000077121000-memory.dmp

memory/1080-156-0x00000000011C0000-0x00000000011EE000-memory.dmp

memory/4204-152-0x0000000001660000-0x0000000006329000-memory.dmp

memory/1080-159-0x0000000003240000-0x000000000358A000-memory.dmp

memory/1080-162-0x00000000011C0000-0x00000000011EE000-memory.dmp

memory/1080-163-0x0000000003080000-0x0000000003113000-memory.dmp

memory/2512-164-0x0000000008F10000-0x0000000008FEE000-memory.dmp

memory/2512-166-0x0000000008F10000-0x0000000008FEE000-memory.dmp

memory/2512-167-0x0000000008F10000-0x0000000008FEE000-memory.dmp