xworm | 10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4

General

Target

10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe
Size

86KB
MD5

12095dbb7ef06f84fbb21054f0c33600
SHA1

6f54c3f2f38e5fb7252c2a9d641c40fc1300bc22
SHA256

10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4
SHA512

3c30f99df8a5da7a9a1c8ec0197a9b5fcdff6417c009e4cabdab60c65c6c19ae0076c291271c58a66090037f0b7d99ab2eec9ea254140578b93186b1dcf2751a
SSDEEP

1536:1ubUIWL10oXnnnop+PBQwtGyybCnpeeL0t2Xz7M66T8NVO3755Ld3T:1u4vnopAAjbCpeeYtKfETmVOLZT

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

great-amanda.gl.at.ply.gg:43926

oil-graphics.gl.at.ply.gg:43926

23.ip.gl.ply.gg:43926

oevn.zapto.org:43926

96.230.131.253:43926

Attributes

Install_directory
%Userprofile%
install_file
USB.exe

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/3040-1-0x0000000000920000-0x000000000093C000-memory.dmp	family_xworm
behavioral1/files/0x0006000000004ed7-35.dat	family_xworm
behavioral1/memory/1764-37-0x00000000001A0000-0x00000000001BC000-memory.dmp	family_xworm
behavioral1/memory/2576-40-0x0000000001370000-0x000000000138C000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1700	powershell.exe
2620	powershell.exe
1340	powershell.exe
2812	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\system32.lnk	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\system32.lnk	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe

Executes dropped EXE 2 IoCs

pid	Process
1764	system32
2576	system32

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\system32 = "C:\\Users\\Admin\\system32"	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2356	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1700	powershell.exe
2620	powershell.exe
1340	powershell.exe
2812	powershell.exe
3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe
Token: SeDebugPrivilege	1700	powershell.exe
Token: SeDebugPrivilege	2620	powershell.exe
Token: SeDebugPrivilege	1340	powershell.exe
Token: SeDebugPrivilege	2812	powershell.exe
Token: SeDebugPrivilege	3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe
Token: SeDebugPrivilege	1764	system32
Token: SeDebugPrivilege	2576	system32

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 1700	3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe	32
PID 3040 wrote to memory of 1700	3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe	32
PID 3040 wrote to memory of 1700	3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe	32
PID 3040 wrote to memory of 2620	3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe	34
PID 3040 wrote to memory of 2620	3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe	34
PID 3040 wrote to memory of 2620	3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe	34
PID 3040 wrote to memory of 1340	3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe	36
PID 3040 wrote to memory of 1340	3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe	36
PID 3040 wrote to memory of 1340	3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe	36
PID 3040 wrote to memory of 2812	3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe	38
PID 3040 wrote to memory of 2812	3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe	38
PID 3040 wrote to memory of 2812	3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe	38
PID 3040 wrote to memory of 2356	3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe	40
PID 3040 wrote to memory of 2356	3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe	40
PID 3040 wrote to memory of 2356	3040	10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe	40
PID 2928 wrote to memory of 1764	2928	taskeng.exe	43
PID 2928 wrote to memory of 1764	2928	taskeng.exe	43
PID 2928 wrote to memory of 1764	2928	taskeng.exe	43
PID 2928 wrote to memory of 2576	2928	taskeng.exe	44
PID 2928 wrote to memory of 2576	2928	taskeng.exe	44
PID 2928 wrote to memory of 2576	2928	taskeng.exe	44

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe
"C:\Users\Admin\AppData\Local\Temp\10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1700
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2620
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\system32'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1340
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'system32'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2812
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "system32" /tr "C:\Users\Admin\system32"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2356

C:\Windows\system32\taskeng.exe
taskeng.exe {528C5B8C-F763-4411-9302-2F48DC378869} S-1-5-21-3063565911-2056067323-3330884624-1000:KHBTHJFA\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2928
- C:\Users\Admin\system32
  C:\Users\Admin\system32
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1764
- C:\Users\Admin\system32
  C:\Users\Admin\system32
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
2a69650b3a795b15c3ca95145872d124

SHA1
47ac1f942e5fe13b6fa3b0a6eda51ef406f0d7b6

SHA256
f5f1aa1bb4480a53ded7a506536880a6a98e83f8ebb7947a4aae2c4b35a34c05

SHA512
642f4926ba0e2cbc7f6bf66eb8d6920f3a1ee703c9ac7a921d0057b61effb2e1867078360c0967b9699833cde18982d70f7d8d02b71387b5e031bb8ae5a85591

Download Submit
C:\Users\Admin\system32

Filesize
86KB

MD5
12095dbb7ef06f84fbb21054f0c33600

SHA1
6f54c3f2f38e5fb7252c2a9d641c40fc1300bc22

SHA256
10f23d2bb9865c9a32b94dcd6057f8d866a60e5e39a3fb6fa77ede90005e87c4

SHA512
3c30f99df8a5da7a9a1c8ec0197a9b5fcdff6417c009e4cabdab60c65c6c19ae0076c291271c58a66090037f0b7d99ab2eec9ea254140578b93186b1dcf2751a

Download Submit
memory/1700-9-0x0000000002D80000-0x0000000002E00000-memory.dmp

Filesize
512KB

Download
memory/1700-10-0x000000001B810000-0x000000001BAF2000-memory.dmp

Filesize
2.9MB

Download
memory/1700-11-0x0000000001E80000-0x0000000001E88000-memory.dmp

Filesize
32KB

Download
memory/1764-37-0x00000000001A0000-0x00000000001BC000-memory.dmp

Filesize
112KB

Download
memory/2576-40-0x0000000001370000-0x000000000138C000-memory.dmp

Filesize
112KB

Download
memory/2620-17-0x000000001B520000-0x000000001B802000-memory.dmp

Filesize
2.9MB

Download
memory/2620-18-0x00000000023A0000-0x00000000023A8000-memory.dmp

Filesize
32KB

Download
memory/3040-0-0x000007FEF58B3000-0x000007FEF58B4000-memory.dmp

Filesize
4KB

Download
memory/3040-4-0x000007FEF58B0000-0x000007FEF629C000-memory.dmp

Filesize
9.9MB

Download
memory/3040-3-0x000007FEF58B3000-0x000007FEF58B4000-memory.dmp

Filesize
4KB

Download
memory/3040-2-0x000007FEF58B0000-0x000007FEF629C000-memory.dmp

Filesize
9.9MB

Download
memory/3040-1-0x0000000000920000-0x000000000093C000-memory.dmp

Filesize
112KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads