Malware Analysis Report

2024-10-19 07:09

Sample ID 240206-ygys8agdcr
Target documents.bat.exe
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.exe was found to be: Known bad.

Malicious Activity Summary

darkcloud stealer

DarkCloud

Checks computer location settings

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Creates scheduled task(s)

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-06 19:46

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-06 19:46

Reported

2024-02-06 19:52

Platform

win7-20231215-en

Max time kernel

23s

Max time network

122s

Command Line

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

Signatures

DarkCloud

stealer darkcloud

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 behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\documents.bat.exe N/A

Processes

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

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

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

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

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

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

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sTIDCEmUa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6DB1.tmp"

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"

Network

N/A

Files

memory/3020-0-0x0000000000330000-0x0000000000412000-memory.dmp

memory/3020-1-0x0000000074670000-0x0000000074D5E000-memory.dmp

memory/3020-2-0x0000000004B90000-0x0000000004BD0000-memory.dmp

memory/3020-3-0x00000000009A0000-0x00000000009BC000-memory.dmp

memory/3020-5-0x0000000002020000-0x0000000002034000-memory.dmp

memory/3020-4-0x0000000001ED0000-0x0000000001EDE000-memory.dmp

memory/3020-6-0x0000000005C90000-0x0000000005D38000-memory.dmp

memory/3020-7-0x0000000074670000-0x0000000074D5E000-memory.dmp

memory/2840-19-0x0000000000400000-0x000000000045F000-memory.dmp

memory/2840-24-0x0000000000400000-0x000000000045F000-memory.dmp

memory/3020-28-0x0000000074670000-0x0000000074D5E000-memory.dmp

memory/2452-35-0x0000000002AF0000-0x0000000002B30000-memory.dmp

memory/2452-34-0x0000000002AF0000-0x0000000002B30000-memory.dmp

memory/2840-33-0x0000000000400000-0x000000000045F000-memory.dmp

memory/2452-32-0x0000000002AF0000-0x0000000002B30000-memory.dmp

memory/2452-31-0x000000006EAA0000-0x000000006F04B000-memory.dmp

memory/2452-30-0x000000006EAA0000-0x000000006F04B000-memory.dmp

memory/2452-36-0x000000006EAA0000-0x000000006F04B000-memory.dmp

memory/2840-26-0x0000000000400000-0x000000000045F000-memory.dmp

memory/3020-22-0x0000000004B90000-0x0000000004BD0000-memory.dmp

memory/2840-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2840-17-0x0000000000400000-0x000000000045F000-memory.dmp

memory/2840-15-0x0000000000400000-0x000000000045F000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp6DB1.tmp

MD5 b2d80f26b8e883149a8eb2dbcd30e655
SHA1 77f8795011a14ae1962d61a717f010ee8710b59b
SHA256 0fff3ff3a4f178d583c09bccaa02a75c62a264d973ea41e34c315d359a00ca55
SHA512 9e5aa51f1115c31a7cdb35c67a30d53e2cb169818c1a67bee9d86f7fc8024c3952c6192c15ebb2e124967ab0ddb05e1f7214df52b3e6bb21f3b92287d0a9821c

memory/2840-37-0x0000000000400000-0x000000000045F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-06 19:46

Reported

2024-02-06 19:52

Platform

win10v2004-20231222-en

Max time kernel

146s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\documents.bat.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.bat.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2396 set thread context of 3164 N/A C:\Users\Admin\AppData\Local\Temp\documents.bat.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.bat.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 2396 wrote to memory of 4500 N/A C:\Users\Admin\AppData\Local\Temp\documents.bat.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2396 wrote to memory of 4500 N/A C:\Users\Admin\AppData\Local\Temp\documents.bat.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2396 wrote to memory of 4500 N/A C:\Users\Admin\AppData\Local\Temp\documents.bat.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2396 wrote to memory of 1308 N/A C:\Users\Admin\AppData\Local\Temp\documents.bat.exe C:\Windows\SysWOW64\schtasks.exe
PID 2396 wrote to memory of 1308 N/A C:\Users\Admin\AppData\Local\Temp\documents.bat.exe C:\Windows\SysWOW64\schtasks.exe
PID 2396 wrote to memory of 1308 N/A C:\Users\Admin\AppData\Local\Temp\documents.bat.exe C:\Windows\SysWOW64\schtasks.exe
PID 2396 wrote to memory of 3164 N/A C:\Users\Admin\AppData\Local\Temp\documents.bat.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2396 wrote to memory of 3164 N/A C:\Users\Admin\AppData\Local\Temp\documents.bat.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2396 wrote to memory of 3164 N/A C:\Users\Admin\AppData\Local\Temp\documents.bat.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2396 wrote to memory of 3164 N/A C:\Users\Admin\AppData\Local\Temp\documents.bat.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2396 wrote to memory of 3164 N/A C:\Users\Admin\AppData\Local\Temp\documents.bat.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2396 wrote to memory of 3164 N/A C:\Users\Admin\AppData\Local\Temp\documents.bat.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2396 wrote to memory of 3164 N/A C:\Users\Admin\AppData\Local\Temp\documents.bat.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2396 wrote to memory of 3164 N/A C:\Users\Admin\AppData\Local\Temp\documents.bat.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Processes

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

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

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sTIDCEmUa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA289.tmp"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 210.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 28.160.77.104.in-addr.arpa udp
US 8.8.8.8:53 150.1.37.23.in-addr.arpa udp
US 8.8.8.8:53 182.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 175.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 26.178.89.13.in-addr.arpa udp

Files

memory/2396-1-0x0000000074760000-0x0000000074F10000-memory.dmp

memory/2396-0-0x00000000009A0000-0x0000000000A82000-memory.dmp

memory/2396-2-0x0000000005800000-0x0000000005DA4000-memory.dmp

memory/2396-3-0x0000000005330000-0x00000000053C2000-memory.dmp

memory/2396-4-0x0000000005480000-0x0000000005490000-memory.dmp

memory/2396-5-0x00000000053F0000-0x00000000053FA000-memory.dmp

memory/2396-6-0x0000000007F20000-0x0000000007F3C000-memory.dmp

memory/2396-8-0x0000000008060000-0x0000000008074000-memory.dmp

memory/2396-7-0x0000000008050000-0x000000000805E000-memory.dmp

memory/2396-9-0x00000000084A0000-0x0000000008548000-memory.dmp

memory/2396-10-0x000000000ABE0000-0x000000000AC7C000-memory.dmp

memory/2396-11-0x0000000074760000-0x0000000074F10000-memory.dmp

memory/2396-15-0x0000000005480000-0x0000000005490000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpA289.tmp

MD5 0435b831fa39f2440518e588337248db
SHA1 b1113437be1ab9891ab18885df5b997095b8db25
SHA256 624f2e0284b92f2963bdc1cdf1dbc726a36568532e62f74991d85a219af3e6c4
SHA512 06b69539b0e60669c80d1470195fdd5540dbcb379175e53c1d0d65d517d8a0524b5d8cfcee70f1a058a0b939ee0d8cc0a13a9a088d9b33142966eb5fe7e59ea3

memory/4500-21-0x0000000004BF0000-0x0000000005218000-memory.dmp

memory/4500-20-0x0000000002170000-0x0000000002180000-memory.dmp

memory/4500-28-0x0000000005390000-0x00000000053F6000-memory.dmp

memory/2396-30-0x0000000074760000-0x0000000074F10000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_khrc1olj.hoc.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/4500-31-0x0000000005400000-0x0000000005466000-memory.dmp

memory/4500-42-0x0000000005470000-0x00000000057C4000-memory.dmp

memory/4500-27-0x0000000004960000-0x0000000004982000-memory.dmp

memory/4500-43-0x0000000005A40000-0x0000000005A5E000-memory.dmp

memory/4500-44-0x0000000005A80000-0x0000000005ACC000-memory.dmp

memory/3164-26-0x0000000000400000-0x000000000045F000-memory.dmp

memory/4500-22-0x0000000002170000-0x0000000002180000-memory.dmp

memory/3164-23-0x0000000000400000-0x000000000045F000-memory.dmp

memory/4500-19-0x0000000074760000-0x0000000074F10000-memory.dmp

memory/4500-17-0x0000000002120000-0x0000000002156000-memory.dmp

memory/4500-46-0x0000000005FF0000-0x0000000006022000-memory.dmp

memory/4500-57-0x0000000006C30000-0x0000000006C4E000-memory.dmp

memory/4500-60-0x0000000002170000-0x0000000002180000-memory.dmp

memory/4500-59-0x0000000002170000-0x0000000002180000-memory.dmp

memory/4500-62-0x0000000006D60000-0x0000000006D7A000-memory.dmp

memory/4500-63-0x0000000006DD0000-0x0000000006DDA000-memory.dmp

memory/4500-61-0x00000000073A0000-0x0000000007A1A000-memory.dmp

memory/4500-64-0x0000000006FE0000-0x0000000007076000-memory.dmp

memory/4500-65-0x0000000006F60000-0x0000000006F71000-memory.dmp

memory/4500-58-0x0000000006C50000-0x0000000006CF3000-memory.dmp

memory/4500-47-0x0000000071E30000-0x0000000071E7C000-memory.dmp

memory/4500-45-0x000000007FB50000-0x000000007FB60000-memory.dmp

memory/4500-66-0x0000000006F90000-0x0000000006F9E000-memory.dmp

memory/4500-68-0x00000000070A0000-0x00000000070BA000-memory.dmp

memory/4500-69-0x0000000007080000-0x0000000007088000-memory.dmp

memory/4500-67-0x0000000006FA0000-0x0000000006FB4000-memory.dmp

memory/4500-72-0x0000000074760000-0x0000000074F10000-memory.dmp

memory/3164-73-0x0000000000400000-0x000000000045F000-memory.dmp