xworm | b6ff3c50324af2896e1d0e8500a531df71fcd2dce5b3f82150255970d6598f00

General

Target

fuckiggin.exe
Size

76KB
MD5

508dbd6b5f72fc49e2365933b9b56d19
SHA1

261cbdda5b1b5e6c5f059ea04d9cb5f05d5b283a
SHA256

b6ff3c50324af2896e1d0e8500a531df71fcd2dce5b3f82150255970d6598f00
SHA512

252e83b033ef6951c16abdb0f4eb29811460ef1b5639f4bc940c9078378e6b1dbb3af9a09846b676991ea3a4cbb08006d27230f49b2b2fa84fa36894df7f4dc4
SSDEEP

1536:QNLE92cWX1EZ/8lxBnEcoPe7bD6D8t4h63FDJO3+CnYdcO:X4Rlw/8XV57bDxDJOuCnJO

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

contact-property.gl.at.ply.gg:2004

Attributes

Install_directory
%ProgramData%
install_file
Helper.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/4612-1-0x00000000003E0000-0x00000000003FA000-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
3684	powershell.exe
2344	powershell.exe
1068	powershell.exe
4840	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	fuckiggin.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WindowsDefender.lnk	fuckiggin.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WindowsDefender.lnk	fuckiggin.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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsDefender = "C:\\ProgramData\\WindowsDefender"	fuckiggin.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
20	ip-api.com

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2580	timeout.exe

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
3560	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3684	powershell.exe
3684	powershell.exe
2344	powershell.exe
2344	powershell.exe
1068	powershell.exe
1068	powershell.exe
4840	powershell.exe
4840	powershell.exe
4612	fuckiggin.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4612	fuckiggin.exe
Token: SeDebugPrivilege	3684	powershell.exe
Token: SeDebugPrivilege	2344	powershell.exe
Token: SeDebugPrivilege	1068	powershell.exe
Token: SeDebugPrivilege	4840	powershell.exe
Token: SeDebugPrivilege	4612	fuckiggin.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4612	fuckiggin.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4612 wrote to memory of 3684	4612	fuckiggin.exe	92
PID 4612 wrote to memory of 3684	4612	fuckiggin.exe	92
PID 4612 wrote to memory of 2344	4612	fuckiggin.exe	94
PID 4612 wrote to memory of 2344	4612	fuckiggin.exe	94
PID 4612 wrote to memory of 1068	4612	fuckiggin.exe	96
PID 4612 wrote to memory of 1068	4612	fuckiggin.exe	96
PID 4612 wrote to memory of 4840	4612	fuckiggin.exe	98
PID 4612 wrote to memory of 4840	4612	fuckiggin.exe	98
PID 4612 wrote to memory of 3560	4612	fuckiggin.exe	102
PID 4612 wrote to memory of 3560	4612	fuckiggin.exe	102
PID 4612 wrote to memory of 4712	4612	fuckiggin.exe	110
PID 4612 wrote to memory of 4712	4612	fuckiggin.exe	110
PID 4612 wrote to memory of 5052	4612	fuckiggin.exe	112
PID 4612 wrote to memory of 5052	4612	fuckiggin.exe	112
PID 5052 wrote to memory of 2580	5052	cmd.exe	114
PID 5052 wrote to memory of 2580	5052	cmd.exe	114

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\fuckiggin.exe
"C:\Users\Admin\AppData\Local\Temp\fuckiggin.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:4612
- 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\fuckiggin.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3684
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'fuckiggin.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2344
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\WindowsDefender'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1068
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'WindowsDefender'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4840
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "WindowsDefender" /tr "C:\ProgramData\WindowsDefender"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3560
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /delete /f /tn "WindowsDefender"
  2⤵
  PID:4712
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2ECB.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5052
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2580

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\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

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

Filesize
944B

MD5
d8cb3e9459807e35f02130fad3f9860d

SHA1
5af7f32cb8a30e850892b15e9164030a041f4bd6

SHA256
2b139c74072ccbdaa17b950f32a6dbc934dfb7af9973d97c9b0d9c498012ba68

SHA512
045239ba31367fbdd59e883f74eafc05724e23bd6e8f0c1e7171ea2496a497eb9e0cfcb57285bb81c4d569daadba43d6ef64c626ca48f1e2a59e8d97f0cc9184

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

Filesize
944B

MD5
eb1ad317bd25b55b2bbdce8a28a74a94

SHA1
98a3978be4d10d62e7411946474579ee5bdc5ea6

SHA256
9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98

SHA512
d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vkb5grox.tfk.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp2ECB.tmp.bat

Filesize
161B

MD5
908e46b6a6a9e7f2468a400bd616e606

SHA1
d39d1e7dc7cf3b81f2f6a423fa12a6e65ab43c04

SHA256
b3b6f68bc91f5f673acec81433e540881ab98247f425b503d12cb6377f158062

SHA512
16a5e5efed82df4f1a0933187e617432419304bbe312786419a28eed269834772ac80e4e8b7dcd7f983b7e0350b9c631379f81a22f33431c7b4aef7abb37e76f

Download Submit
memory/3684-3-0x00007FFA21440000-0x00007FFA21F01000-memory.dmp

Filesize
10.8MB

Download
memory/3684-15-0x00007FFA21440000-0x00007FFA21F01000-memory.dmp

Filesize
10.8MB

Download
memory/3684-18-0x00000138362D0000-0x00000138364EC000-memory.dmp

Filesize
2.1MB

Download
memory/3684-19-0x00007FFA21440000-0x00007FFA21F01000-memory.dmp

Filesize
10.8MB

Download
memory/3684-9-0x00000138362A0000-0x00000138362C2000-memory.dmp

Filesize
136KB

Download
memory/3684-14-0x00007FFA21440000-0x00007FFA21F01000-memory.dmp

Filesize
10.8MB

Download
memory/4612-0-0x00007FFA21443000-0x00007FFA21445000-memory.dmp

Filesize
8KB

Download
memory/4612-2-0x00007FFA21440000-0x00007FFA21F01000-memory.dmp

Filesize
10.8MB

Download
memory/4612-1-0x00000000003E0000-0x00000000003FA000-memory.dmp

Filesize
104KB

Download
memory/4612-54-0x00007FFA21443000-0x00007FFA21445000-memory.dmp

Filesize
8KB

Download
memory/4612-58-0x00007FFA21440000-0x00007FFA21F01000-memory.dmp

Filesize
10.8MB

Download
memory/4612-59-0x000000001B250000-0x000000001B25C000-memory.dmp

Filesize
48KB

Download
memory/4612-66-0x00007FFA21440000-0x00007FFA21F01000-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