Malware Analysis Report

2024-10-23 19:42

Sample ID 240201-lgk6xabcgn
Target documents.bat
SHA256 0dd421edda69a829b7b9d025fd81f947085c0b3a54d9025312823a56c2b5df83
Tags
darkcloud stealer
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

0dd421edda69a829b7b9d025fd81f947085c0b3a54d9025312823a56c2b5df83

Threat Level: Known bad

The file documents.bat was found to be: Known bad.

Malicious Activity Summary

darkcloud stealer

DarkCloud

Checks computer location settings

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-01 09:30

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-01 09:30

Reported

2024-02-01 09:32

Platform

win7-20231215-en

Max time kernel

136s

Max time network

124s

Command Line

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

Signatures

DarkCloud

stealer darkcloud

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2456 set thread context of 2716 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\documents.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2456 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2456 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2456 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2456 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2456 wrote to memory of 2092 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\SysWOW64\schtasks.exe
PID 2456 wrote to memory of 2092 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\SysWOW64\schtasks.exe
PID 2456 wrote to memory of 2092 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\SysWOW64\schtasks.exe
PID 2456 wrote to memory of 2092 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\SysWOW64\schtasks.exe
PID 2456 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2456 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2456 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2456 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2456 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2456 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2456 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2456 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2456 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2456 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2456 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2456 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Processes

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

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

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sTIDCEmUa.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sTIDCEmUa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA41C.tmp"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"

Network

N/A

Files

memory/2456-0-0x0000000000210000-0x00000000002F2000-memory.dmp

memory/2456-1-0x0000000074D00000-0x00000000753EE000-memory.dmp

memory/2456-2-0x0000000004640000-0x0000000004680000-memory.dmp

memory/2456-3-0x0000000000540000-0x000000000055C000-memory.dmp

memory/2456-4-0x00000000005D0000-0x00000000005DE000-memory.dmp

memory/2456-5-0x00000000005E0000-0x00000000005F4000-memory.dmp

memory/2456-6-0x0000000005210000-0x00000000052B8000-memory.dmp

memory/2456-7-0x0000000074D00000-0x00000000753EE000-memory.dmp

memory/2456-8-0x0000000004640000-0x0000000004680000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpA41C.tmp

MD5 0b4a7e603e0ee69f79d612af45572072
SHA1 7bf5abfaf816f43487cb06e8a2b4ea6b925e3747
SHA256 5a7bd18eaf054ee20a46840cc9ba852a3c4a6d3445a91828cd36f60426db8fdd
SHA512 50c9c6308a3ef9bc32c04883d35d348beb63cfb819e828e8a216930d0d0c31461ef0376cfdeda57a6114077ac968de7d05f03e2a217f7ffaea54d20a2c5fb301

memory/2716-16-0x0000000000400000-0x000000000045F000-memory.dmp

memory/2716-17-0x0000000000400000-0x000000000045F000-memory.dmp

memory/2716-18-0x0000000000400000-0x000000000045F000-memory.dmp

memory/2716-22-0x0000000000400000-0x000000000045F000-memory.dmp

memory/2716-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2716-24-0x0000000000400000-0x000000000045F000-memory.dmp

memory/2456-25-0x0000000074D00000-0x00000000753EE000-memory.dmp

memory/2740-28-0x000000006F130000-0x000000006F6DB000-memory.dmp

memory/2740-29-0x0000000002640000-0x0000000002680000-memory.dmp

memory/2716-30-0x0000000000400000-0x000000000045F000-memory.dmp

memory/2740-32-0x0000000002640000-0x0000000002680000-memory.dmp

memory/2740-31-0x000000006F130000-0x000000006F6DB000-memory.dmp

memory/2740-33-0x000000006F130000-0x000000006F6DB000-memory.dmp

memory/2716-34-0x0000000000400000-0x000000000045F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-01 09:30

Reported

2024-02-01 09:32

Platform

win10v2004-20231222-en

Max time kernel

149s

Max time network

149s

Command Line

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

Signatures

DarkCloud

stealer darkcloud

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\documents.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1188 set thread context of 2080 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\documents.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1188 wrote to memory of 1092 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1188 wrote to memory of 1092 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1188 wrote to memory of 1092 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1188 wrote to memory of 4652 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\SysWOW64\schtasks.exe
PID 1188 wrote to memory of 4652 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\SysWOW64\schtasks.exe
PID 1188 wrote to memory of 4652 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\SysWOW64\schtasks.exe
PID 1188 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1188 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1188 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1188 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1188 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1188 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1188 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1188 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Local\Temp\documents.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Processes

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

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

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sTIDCEmUa.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sTIDCEmUa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAD57.tmp"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 201.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 204.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp

Files

memory/1188-0-0x00000000006E0000-0x00000000007C2000-memory.dmp

memory/1188-1-0x00000000753B0000-0x0000000075B60000-memory.dmp

memory/1188-2-0x0000000005710000-0x0000000005CB4000-memory.dmp

memory/1188-3-0x0000000005200000-0x0000000005292000-memory.dmp

memory/1188-4-0x0000000005370000-0x0000000005380000-memory.dmp

memory/1188-5-0x00000000051E0000-0x00000000051EA000-memory.dmp

memory/1188-6-0x0000000005530000-0x000000000554C000-memory.dmp

memory/1188-8-0x0000000006630000-0x0000000006644000-memory.dmp

memory/1188-7-0x0000000005700000-0x000000000570E000-memory.dmp

memory/1188-9-0x0000000007F90000-0x0000000008038000-memory.dmp

memory/1188-10-0x000000000A6B0000-0x000000000A74C000-memory.dmp

memory/1188-11-0x00000000753B0000-0x0000000075B60000-memory.dmp

memory/1188-15-0x0000000005370000-0x0000000005380000-memory.dmp

memory/1092-17-0x0000000002F40000-0x0000000002F76000-memory.dmp

memory/1092-18-0x00000000753B0000-0x0000000075B60000-memory.dmp

memory/1092-19-0x0000000003030000-0x0000000003040000-memory.dmp

memory/1092-22-0x00000000059E0000-0x0000000006008000-memory.dmp

memory/1092-21-0x0000000003030000-0x0000000003040000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpAD57.tmp

MD5 0435b831fa39f2440518e588337248db
SHA1 b1113437be1ab9891ab18885df5b997095b8db25
SHA256 624f2e0284b92f2963bdc1cdf1dbc726a36568532e62f74991d85a219af3e6c4
SHA512 06b69539b0e60669c80d1470195fdd5540dbcb379175e53c1d0d65d517d8a0524b5d8cfcee70f1a058a0b939ee0d8cc0a13a9a088d9b33142966eb5fe7e59ea3

memory/2080-23-0x0000000000400000-0x000000000045F000-memory.dmp

memory/2080-27-0x0000000000400000-0x000000000045F000-memory.dmp

memory/1092-26-0x0000000005790000-0x00000000057B2000-memory.dmp

memory/1188-29-0x00000000753B0000-0x0000000075B60000-memory.dmp

memory/1092-28-0x0000000006180000-0x00000000061E6000-memory.dmp

memory/1092-30-0x0000000006260000-0x00000000062C6000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5oahlgnd.j5l.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/1092-42-0x00000000063D0000-0x0000000006724000-memory.dmp

memory/1092-43-0x0000000006850000-0x000000000686E000-memory.dmp

memory/1092-44-0x00000000068A0000-0x00000000068EC000-memory.dmp

memory/1092-46-0x0000000006E50000-0x0000000006E82000-memory.dmp

memory/1092-59-0x0000000007A40000-0x0000000007AE3000-memory.dmp

memory/1092-58-0x0000000003030000-0x0000000003040000-memory.dmp

memory/1092-61-0x0000000007B80000-0x0000000007B9A000-memory.dmp

memory/1092-60-0x00000000081C0000-0x000000000883A000-memory.dmp

memory/1092-62-0x0000000007BF0000-0x0000000007BFA000-memory.dmp

memory/1092-57-0x0000000006E10000-0x0000000006E2E000-memory.dmp

memory/1092-63-0x0000000007E00000-0x0000000007E96000-memory.dmp

memory/1092-64-0x0000000007D80000-0x0000000007D91000-memory.dmp

memory/1092-47-0x0000000075C40000-0x0000000075C8C000-memory.dmp

memory/1092-45-0x000000007F600000-0x000000007F610000-memory.dmp

memory/1092-66-0x0000000007DC0000-0x0000000007DD4000-memory.dmp

memory/1092-68-0x0000000007EA0000-0x0000000007EA8000-memory.dmp

memory/1092-67-0x0000000007EC0000-0x0000000007EDA000-memory.dmp

memory/1092-65-0x0000000007DB0000-0x0000000007DBE000-memory.dmp

memory/1092-71-0x00000000753B0000-0x0000000075B60000-memory.dmp

memory/2080-72-0x0000000000400000-0x000000000045F000-memory.dmp