xworm | 0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1

General

Target

0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe
Size

174KB
MD5

99c5239695693ce06b60f813be93438c
SHA1

cc883087c8520dc98bea10778e8bef3434af4ceb
SHA256

0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1
SHA512

1dfb280d4ff0fe4c8112205e4fa54914ca3b2d0275e5f4c299adfd4c9175a427b73f20c9c20868ccb8a83c3201db0bd66a652ca812471a3522135feabbcae54b
SSDEEP

3072:hk7PaS3gZhlnbH1+OOZovBz65/M6If+3Js+3JFkKeTn+:AaS3gZhlnbBvxBt25

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:29573

24.ip.gl.ply.gg:29573

activity-maintained.g1.at.ply.gg:29573

Attributes

Install_directory
%Temp%
install_file
java_host.exe

Signatures

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral1/memory/2504-1-0x00000000001C0000-0x00000000001F2000-memory.dmp	family_xworm
behavioral1/files/0x000b000000015cdd-34.dat	family_xworm
behavioral1/memory/2168-36-0x0000000000AA0000-0x0000000000AD2000-memory.dmp	family_xworm
behavioral1/memory/2072-40-0x00000000003B0000-0x00000000003E2000-memory.dmp	family_xworm
behavioral1/memory/948-42-0x0000000000CF0000-0x0000000000D22000-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
2768	powershell.exe
1992	powershell.exe
2676	powershell.exe
320	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\java_host.lnk	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\java_host.lnk	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe

Executes dropped EXE 3 IoCs

pid	Process
2168	java_host.exe
2072	java_host.exe
948	java_host.exe

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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\java_host = "C:\\Users\\Admin\\AppData\\Local\\Temp\\java_host.exe"	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.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
1804	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2768	powershell.exe
1992	powershell.exe
2676	powershell.exe
320	powershell.exe
2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe
Token: SeDebugPrivilege	2768	powershell.exe
Token: SeDebugPrivilege	1992	powershell.exe
Token: SeDebugPrivilege	2676	powershell.exe
Token: SeDebugPrivilege	320	powershell.exe
Token: SeDebugPrivilege	2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe
Token: SeDebugPrivilege	2168	java_host.exe
Token: SeDebugPrivilege	2072	java_host.exe
Token: SeDebugPrivilege	948	java_host.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 2768	2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe	32
PID 2504 wrote to memory of 2768	2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe	32
PID 2504 wrote to memory of 2768	2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe	32
PID 2504 wrote to memory of 1992	2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe	34
PID 2504 wrote to memory of 1992	2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe	34
PID 2504 wrote to memory of 1992	2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe	34
PID 2504 wrote to memory of 2676	2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe	36
PID 2504 wrote to memory of 2676	2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe	36
PID 2504 wrote to memory of 2676	2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe	36
PID 2504 wrote to memory of 320	2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe	38
PID 2504 wrote to memory of 320	2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe	38
PID 2504 wrote to memory of 320	2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe	38
PID 2504 wrote to memory of 1804	2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe	40
PID 2504 wrote to memory of 1804	2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe	40
PID 2504 wrote to memory of 1804	2504	0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe	40
PID 2996 wrote to memory of 2168	2996	taskeng.exe	43
PID 2996 wrote to memory of 2168	2996	taskeng.exe	43
PID 2996 wrote to memory of 2168	2996	taskeng.exe	43
PID 2996 wrote to memory of 2072	2996	taskeng.exe	44
PID 2996 wrote to memory of 2072	2996	taskeng.exe	44
PID 2996 wrote to memory of 2072	2996	taskeng.exe	44
PID 2996 wrote to memory of 948	2996	taskeng.exe	45
PID 2996 wrote to memory of 948	2996	taskeng.exe	45
PID 2996 wrote to memory of 948	2996	taskeng.exe	45

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\0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe
"C:\Users\Admin\AppData\Local\Temp\0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.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:2504
- 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\0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2768
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1992
- 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\java_host.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2676
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'java_host.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:320
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "java_host" /tr "C:\Users\Admin\AppData\Local\Temp\java_host.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1804

C:\Windows\system32\taskeng.exe
taskeng.exe {F4D241D5-5062-4D7C-AECF-561F9BBAEE49} S-1-5-21-312935884-697965778-3955649944-1000:MXQFNXLT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2996
- C:\Users\Admin\AppData\Local\Temp\java_host.exe
  C:\Users\Admin\AppData\Local\Temp\java_host.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2168
- C:\Users\Admin\AppData\Local\Temp\java_host.exe
  C:\Users\Admin\AppData\Local\Temp\java_host.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2072
- C:\Users\Admin\AppData\Local\Temp\java_host.exe
  C:\Users\Admin\AppData\Local\Temp\java_host.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:948

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\Local\Temp\java_host.exe

Filesize
174KB

MD5
99c5239695693ce06b60f813be93438c

SHA1
cc883087c8520dc98bea10778e8bef3434af4ceb

SHA256
0ac7ff8abd7db2a91b52cf2361a70dc32f65ee796a46f17e343989ac62def9a1

SHA512
1dfb280d4ff0fe4c8112205e4fa54914ca3b2d0275e5f4c299adfd4c9175a427b73f20c9c20868ccb8a83c3201db0bd66a652ca812471a3522135feabbcae54b

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

Filesize
7KB

MD5
2fca7988deb2e760b5cd57ab18ac2f25

SHA1
82f7b6f251b8b8834bc9c50eae97b5e54b92d637

SHA256
43e5443e21a15f9e0bc650ee68a8f2b89cc79501b03a58050878b0e8712f9919

SHA512
44bfd1f92c8c4230fbf724b05dfac078a4d64452b38ddc7f4eb236147bf3b000d7a666622145e147dd3784a7aac28a44ae34d3bb3b69ff2cdacc7c2aed3a3d0b

Download Submit
memory/948-42-0x0000000000CF0000-0x0000000000D22000-memory.dmp

Filesize
200KB

Download
memory/1992-15-0x000000001B5C0000-0x000000001B8A2000-memory.dmp

Filesize
2.9MB

Download
memory/1992-16-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

Filesize
32KB

Download
memory/2072-40-0x00000000003B0000-0x00000000003E2000-memory.dmp

Filesize
200KB

Download
memory/2168-36-0x0000000000AA0000-0x0000000000AD2000-memory.dmp

Filesize
200KB

Download
memory/2504-27-0x000007FEF61C3000-0x000007FEF61C4000-memory.dmp

Filesize
4KB

Download
memory/2504-0-0x000007FEF61C3000-0x000007FEF61C4000-memory.dmp

Filesize
4KB

Download
memory/2504-37-0x000007FEF61C0000-0x000007FEF6BAC000-memory.dmp

Filesize
9.9MB

Download
memory/2504-2-0x000007FEF61C0000-0x000007FEF6BAC000-memory.dmp

Filesize
9.9MB

Download
memory/2504-1-0x00000000001C0000-0x00000000001F2000-memory.dmp

Filesize
200KB

Download
memory/2768-8-0x000000001B680000-0x000000001B962000-memory.dmp

Filesize
2.9MB

Download
memory/2768-9-0x0000000001FF0000-0x0000000001FF8000-memory.dmp

Filesize
32KB

Download
memory/2768-7-0x0000000001E80000-0x0000000001F00000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads