xworm | cffb99ed02ab35145c3ddc5e66f7f24b58d1a0e7714475f0370f71b9c51603c0

General

Target

Fatalitycrack.exe
Size

1.1MB
MD5

c55c58e7938f01efa7800a4f3a649610
SHA1

ca995f8eee73f04bc8f5f3e8fc4bd470a8020524
SHA256

cffb99ed02ab35145c3ddc5e66f7f24b58d1a0e7714475f0370f71b9c51603c0
SHA512

1a8dc3ae6e86b8da13b8aab1743859c41b21d94f7c384a60d7bf7653f42d60717f84770b337c58438ddbe5e399cd37cee94ca013ca06d3979358bdba28439ed8
SSDEEP

24576:21qZoJIBlbtSwSu+BKDCIKAn0xHGVk2dkwbMy56yleaixn+mfiPhr8vg8/Bq:BWIpskZqGDRMMl2xn3iS7/o

Score

10^/10

xworm discovery execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:7777

door-predict.gl.at.ply.gg:7777

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e710-31.dat	family_xworm
behavioral2/memory/1820-40-0x0000000000D80000-0x0000000000D96000-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 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
1908	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-1-5-21-22591836-1183090055-1220658180-1000\Control Panel\International\Geo\Nation	Fatalitycrack.exe

Executes dropped EXE 2 IoCs

pid	Process
1288	fatality.exe
1820	security.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-1-5-21-22591836-1183090055-1220658180-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\security = "C:\\Users\\Admin\\AppData\\Local\\Temp\\security.exe"	Fatalitycrack.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
28	ip-api.com

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fatality.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1908	powershell.exe
1908	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1908	powershell.exe
Token: SeDebugPrivilege	1820	security.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3424 wrote to memory of 1288	3424	Fatalitycrack.exe	89
PID 3424 wrote to memory of 1288	3424	Fatalitycrack.exe	89
PID 3424 wrote to memory of 1288	3424	Fatalitycrack.exe	89
PID 3424 wrote to memory of 1908	3424	Fatalitycrack.exe	90
PID 3424 wrote to memory of 1908	3424	Fatalitycrack.exe	90
PID 3424 wrote to memory of 1820	3424	Fatalitycrack.exe	94
PID 3424 wrote to memory of 1820	3424	Fatalitycrack.exe	94

C:\Users\Admin\AppData\Local\Temp\Fatalitycrack.exe
"C:\Users\Admin\AppData\Local\Temp\Fatalitycrack.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3424
- C:\Users\Admin\AppData\Local\Temp\fatality.exe
  "C:\Users\Admin\AppData\Local\Temp\fatality.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1288
- 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\security.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1908
- C:\Users\Admin\AppData\Local\Temp\security.exe
  "C:\Users\Admin\AppData\Local\Temp\security.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1820

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lywes5yz.gtp.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\fatality.exe

Filesize
2.0MB

MD5
b5ae62edbf81a0dec30fedcc6d136245

SHA1
9f89cca56f20cb73503e068f5bb115fdda0cf272

SHA256
5cd7137393dddb5cd41a55429871f443dcf6c2791eeaaade4fdb43f7a07c8865

SHA512
3e525757ca541897e3766f73e53f21ac4ba1147ee33cc5df2117131808de8e6a3c576d8799e22dc3c76afe163102cc8517a3834388c1f06365e892a389166cc7

Download Submit
C:\Users\Admin\AppData\Local\Temp\security.exe

Filesize
63KB

MD5
f329b3a2d6b8a4688e82ffe1c491b2ab

SHA1
d06cab7d0ce6970807574569f4a3896ddd3d9ee7

SHA256
e8b6648a1f94b9a9ea1d67db82812f08f5aaa7fd220d5574ba7e9e14dbcb06a0

SHA512
cdc3056d11cfa9f34beee2a83dd861074076fec47e9b8a30a0e01eb92ee0ccca6b8376d58e578c15de720e5ea745da9fddbd3b0380995b237ad21a4dc1651dc6

Download Submit
memory/1820-40-0x0000000000D80000-0x0000000000D96000-memory.dmp

Filesize
88KB

Download
memory/1908-26-0x00007FF9CF0F0000-0x00007FF9CFBB1000-memory.dmp

Filesize
10.8MB

Download
memory/1908-12-0x00007FF9CF0F0000-0x00007FF9CFBB1000-memory.dmp

Filesize
10.8MB

Download
memory/1908-11-0x00007FF9CF0F0000-0x00007FF9CFBB1000-memory.dmp

Filesize
10.8MB

Download
memory/1908-20-0x0000026A786E0000-0x0000026A78702000-memory.dmp

Filesize
136KB

Download
memory/1908-23-0x00007FF9CF0F0000-0x00007FF9CFBB1000-memory.dmp

Filesize
10.8MB

Download
memory/3424-0-0x00007FF9CF0F3000-0x00007FF9CF0F5000-memory.dmp

Filesize
8KB

Download
memory/3424-7-0x00007FF9CF0F0000-0x00007FF9CFBB1000-memory.dmp

Filesize
10.8MB

Download
memory/3424-39-0x00007FF9CF0F0000-0x00007FF9CFBB1000-memory.dmp

Filesize
10.8MB

Download
memory/3424-1-0x0000000000650000-0x0000000000772000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads