xworm | a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f

General

Target

a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe
Size

75KB
MD5

2fbece266a952df408602eb9cbedad0f
SHA1

f307c496bb6fd8531584c19474ef6de1775ba744
SHA256

a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f
SHA512

15edd9bd37ce9179701758eb1a49dbffd4a101b3b33aa21e757c4a1117772170c0ff3e8355a798f605c763affd2be664bd71c75eb71265c320dcbe3339850c16
SSDEEP

1536:WQvlvzEfcn5PF6vWs6aq69eq9bC29104DTcp7i600xPCOMQln84lO:WovIfk6OYRbCaSacl4OMulO

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

25.ip.gl.ply.gg:8258

Attributes

Install_directory
%AppData%
install_file
svchost.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1644-1-0x0000000000110000-0x000000000012A000-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
1464	powershell.exe
3016	powershell.exe
2544	powershell.exe
4760	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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.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
13	ip-api.com

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4760	powershell.exe
4760	powershell.exe
1464	powershell.exe
1464	powershell.exe
3016	powershell.exe
3016	powershell.exe
2544	powershell.exe
2544	powershell.exe
1644	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1644	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe
Token: SeDebugPrivilege	4760	powershell.exe
Token: SeDebugPrivilege	1464	powershell.exe
Token: SeDebugPrivilege	3016	powershell.exe
Token: SeDebugPrivilege	2544	powershell.exe
Token: SeDebugPrivilege	1644	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1644	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 4760	1644	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	87
PID 1644 wrote to memory of 4760	1644	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	87
PID 1644 wrote to memory of 1464	1644	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	89
PID 1644 wrote to memory of 1464	1644	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	89
PID 1644 wrote to memory of 3016	1644	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	91
PID 1644 wrote to memory of 3016	1644	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	91
PID 1644 wrote to memory of 2544	1644	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	95
PID 1644 wrote to memory of 2544	1644	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	95

C:\Users\Admin\AppData\Local\Temp\a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe
"C:\Users\Admin\AppData\Local\Temp\a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.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:1644
- 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\a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4760
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1464
- 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:3016
- 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:2544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

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\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
944B

MD5
92075279f2dbcaa5724ee5a47e49712f

SHA1
8dd3e2faa8432dde978946ebaf9054f7c6e0b2cb

SHA256
fd985ddd090621af25aa77aebff689c95ea7679ff0e81887124b2802ae3e9442

SHA512
744c62556233d9872f43ffb5a5a98aee20a44834436306f0a948c8c4072bdb46ef8044616593747edd645caaee60faf8b14fedb2d6df5f6019b5c73357d80d22

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

Filesize
944B

MD5
60945d1a2e48da37d4ce8d9c56b6845a

SHA1
83e80a6acbeb44b68b0da00b139471f428a9d6c1

SHA256
314b91c00997034d6e015f40230d90ebbf57de5dc938b62c1a214d591793dbe3

SHA512
5d068f1d6443e26ae3cad1c80f969e50e5860967b314153c4d3b6efd1cfa39f0907c6427bec7fa43db079f258b6357e4e9a1b0b1a36b1481d2049ea0e67909ed

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0pjwugao.dyp.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1644-1-0x0000000000110000-0x000000000012A000-memory.dmp

Filesize
104KB

Download
memory/1644-2-0x00007FFEB3CD0000-0x00007FFEB4791000-memory.dmp

Filesize
10.8MB

Download
memory/1644-0-0x00007FFEB3CD3000-0x00007FFEB3CD5000-memory.dmp

Filesize
8KB

Download
memory/1644-57-0x00007FFEB3CD0000-0x00007FFEB4791000-memory.dmp

Filesize
10.8MB

Download
memory/1644-52-0x00007FFEB3CD3000-0x00007FFEB3CD5000-memory.dmp

Filesize
8KB

Download
memory/4760-3-0x000001AB4D230000-0x000001AB4D252000-memory.dmp

Filesize
136KB

Download
memory/4760-17-0x00007FFEB3CD0000-0x00007FFEB4791000-memory.dmp

Filesize
10.8MB

Download
memory/4760-10-0x00007FFEB3CD0000-0x00007FFEB4791000-memory.dmp

Filesize
10.8MB

Download
memory/4760-4-0x00007FFEB3CD0000-0x00007FFEB4791000-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