xworm | a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe

General

Target

a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe
Size

73KB
MD5

ae9ac9900b634355242a67a84c631f13
SHA1

33b6b44502a6ab4d83ebc43459104895dba03247
SHA256

a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe
SHA512

0d6b0d188b445fe4ee0154e9041ab62d2fbd697ad9f1829b179511f81cbfc80179c6483e82fbd8c09d43d094022f6adf67f6282278a6ffdd34979c3708c4cb0b
SSDEEP

1536:at1xRmYXr9E5v9mt8pt3h9Ibm6Yk9Fc7RCa6e0OKcVBSKgcyyy:at1xRmYXwf7Ibdw1CNOPSzpyy

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

rating-action.gl.at.ply.gg::8848

Attributes

Install_directory
%AppData%
install_file
svchost.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/1772-1-0x0000000000D70000-0x0000000000D88000-memory.dmp	family_xworm
behavioral2/files/0x0011000000023af2-59.dat	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
2056	powershell.exe
3208	powershell.exe
1064	powershell.exe
1512	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe

Executes dropped EXE 2 IoCs

pid	Process
1568	svchost.exe
3544	svchost.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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.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
3	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
392	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2056	powershell.exe
2056	powershell.exe
3208	powershell.exe
3208	powershell.exe
1064	powershell.exe
1064	powershell.exe
1512	powershell.exe
1512	powershell.exe
1772	a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1772	a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe
Token: SeDebugPrivilege	2056	powershell.exe
Token: SeDebugPrivilege	3208	powershell.exe
Token: SeDebugPrivilege	1064	powershell.exe
Token: SeDebugPrivilege	1512	powershell.exe
Token: SeDebugPrivilege	1772	a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe
Token: SeDebugPrivilege	1568	svchost.exe
Token: SeDebugPrivilege	3544	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1772	a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1772 wrote to memory of 2056	1772	a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe	88
PID 1772 wrote to memory of 2056	1772	a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe	88
PID 1772 wrote to memory of 3208	1772	a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe	90
PID 1772 wrote to memory of 3208	1772	a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe	90
PID 1772 wrote to memory of 1064	1772	a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe	92
PID 1772 wrote to memory of 1064	1772	a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe	92
PID 1772 wrote to memory of 1512	1772	a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe	94
PID 1772 wrote to memory of 1512	1772	a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe	94
PID 1772 wrote to memory of 392	1772	a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe	96
PID 1772 wrote to memory of 392	1772	a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe	96

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\a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe
"C:\Users\Admin\AppData\Local\Temp\a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe"
1⤵
- Checks computer location settings
- 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:1772
- 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\a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2056
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3208
- 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\Roaming\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1064
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1512
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:392

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1568

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3544

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

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\svchost.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
da5c82b0e070047f7377042d08093ff4

SHA1
89d05987cd60828cca516c5c40c18935c35e8bd3

SHA256
77a94ef8c4258445d538a6006ffadb05afdf888f6f044e1e5466b981a07f16c5

SHA512
7360311a3c97b73dd3f6d7179cd979e0e20d69f380d38292447e17e369087d9dd5acb66cd0cbdd95ac4bfb16e5a1b86825f835a8d45b14ea9812102cff59704b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
50d3033f2bc3a3774c469d03e71a79a9

SHA1
22027b1d52085de99b3bffa276530fea5d961471

SHA256
2987e99ec7fa17bd4ab7de3cb4dc62645e1052012a5a357904d6fc6db9054147

SHA512
ecf7ab1a9e4192454a3e24c60453fd702a8c648e00078fc933b9182f4a3d3c10c6f5da622a5729b35727e6ddc8837029caddcaf76f56e805b9744253b56da5d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_axufey4a.c1h.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe

Filesize
73KB

MD5
ae9ac9900b634355242a67a84c631f13

SHA1
33b6b44502a6ab4d83ebc43459104895dba03247

SHA256
a443a9721377ce3c94df8b54d214c082e51d113ab9f69129d93a802505216cbe

SHA512
0d6b0d188b445fe4ee0154e9041ab62d2fbd697ad9f1829b179511f81cbfc80179c6483e82fbd8c09d43d094022f6adf67f6282278a6ffdd34979c3708c4cb0b

Download Submit
memory/1772-4-0x00007FFCD91D0000-0x00007FFCD9C91000-memory.dmp

Filesize
10.8MB

Download
memory/1772-0-0x00007FFCD91D3000-0x00007FFCD91D5000-memory.dmp

Filesize
8KB

Download
memory/1772-3-0x00007FFCD91D3000-0x00007FFCD91D5000-memory.dmp

Filesize
8KB

Download
memory/1772-2-0x00007FFCD91D0000-0x00007FFCD9C91000-memory.dmp

Filesize
10.8MB

Download
memory/1772-1-0x0000000000D70000-0x0000000000D88000-memory.dmp

Filesize
96KB

Download
memory/2056-16-0x00007FFCD91D0000-0x00007FFCD9C91000-memory.dmp

Filesize
10.8MB

Download
memory/2056-17-0x00007FFCD91D0000-0x00007FFCD9C91000-memory.dmp

Filesize
10.8MB

Download
memory/2056-20-0x00007FFCD91D0000-0x00007FFCD9C91000-memory.dmp

Filesize
10.8MB

Download
memory/2056-11-0x00000213C0C80000-0x00000213C0CA2000-memory.dmp

Filesize
136KB

Download
memory/2056-10-0x00007FFCD91D0000-0x00007FFCD9C91000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads