xworm | 795936e455d9816df8dc97b8d2653c711a9084dd887dcc6ae857f11493b1b270

General

Target

FullOptionFivemFree2024NEW.exe
Size

3.9MB
MD5

679df4417fc2227844b44878d7de7743
SHA1

d21a53d46aef380de82f584c5ab0a6fe83f52163
SHA256

795936e455d9816df8dc97b8d2653c711a9084dd887dcc6ae857f11493b1b270
SHA512

e1a13722728c1b8d3b8518b7467dedeb4b74fcd8a011a8429e7203490ccf9d3ec3396e127b9b16a78ea2935cf1110d7a57d1c52aed368e94f3223496fe24f0c6
SSDEEP

98304:O+/27mY8Whua/AOQtRWxNRNXqsSCWQmL3Ah/iw:OaYua/ANeXNXcQRZ

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

45.141.26.194:7000

Attributes

Install_directory
%ProgramData%

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023b96-14.dat	family_xworm
behavioral2/memory/4968-22-0x0000000000AA0000-0x0000000000ABA000-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
2344	powershell.exe
3492	powershell.exe
1876	powershell.exe
400	powershell.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	FullOptionFivemFree2024NEW.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	guest-tool.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
1464	FULLOPTION.exe
4968	guest-tool.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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Registry = "C:\\ProgramData\\Registry"	guest-tool.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

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
4056	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2344	powershell.exe
2344	powershell.exe
3492	powershell.exe
3492	powershell.exe
1876	powershell.exe
1876	powershell.exe
400	powershell.exe
400	powershell.exe
4968	guest-tool.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4968	guest-tool.exe
Token: SeDebugPrivilege	2344	powershell.exe
Token: SeDebugPrivilege	3492	powershell.exe
Token: SeDebugPrivilege	1876	powershell.exe
Token: SeDebugPrivilege	400	powershell.exe
Token: SeDebugPrivilege	4968	guest-tool.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4968	guest-tool.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3572 wrote to memory of 1464	3572	FullOptionFivemFree2024NEW.exe	85
PID 3572 wrote to memory of 1464	3572	FullOptionFivemFree2024NEW.exe	85
PID 3572 wrote to memory of 4968	3572	FullOptionFivemFree2024NEW.exe	86
PID 3572 wrote to memory of 4968	3572	FullOptionFivemFree2024NEW.exe	86
PID 4968 wrote to memory of 2344	4968	guest-tool.exe	95
PID 4968 wrote to memory of 2344	4968	guest-tool.exe	95
PID 4968 wrote to memory of 3492	4968	guest-tool.exe	98
PID 4968 wrote to memory of 3492	4968	guest-tool.exe	98
PID 4968 wrote to memory of 1876	4968	guest-tool.exe	100
PID 4968 wrote to memory of 1876	4968	guest-tool.exe	100
PID 4968 wrote to memory of 400	4968	guest-tool.exe	102
PID 4968 wrote to memory of 400	4968	guest-tool.exe	102
PID 4968 wrote to memory of 4056	4968	guest-tool.exe	105
PID 4968 wrote to memory of 4056	4968	guest-tool.exe	105

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\FullOptionFivemFree2024NEW.exe
"C:\Users\Admin\AppData\Local\Temp\FullOptionFivemFree2024NEW.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3572
- C:\Users\Public\FULLOPTION.exe
  "C:\Users\Public\FULLOPTION.exe"
  2⤵
  - Executes dropped EXE
  PID:1464
- C:\Users\Public\guest-tool.exe
  "C:\Users\Public\guest-tool.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4968
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Public\guest-tool.exe'
    3⤵
    - 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 -ExclusionProcess 'guest-tool.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3492
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\Registry'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1876
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Registry'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:400
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Registry" /tr "C:\ProgramData\Registry"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4056

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

Replay Monitor

Loading Replay Monitor...

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
60945d1a2e48da37d4ce8d9c56b6845a

SHA1
83e80a6acbeb44b68b0da00b139471f428a9d6c1

SHA256
314b91c00997034d6e015f40230d90ebbf57de5dc938b62c1a214d591793dbe3

SHA512
5d068f1d6443e26ae3cad1c80f969e50e5860967b314153c4d3b6efd1cfa39f0907c6427bec7fa43db079f258b6357e4e9a1b0b1a36b1481d2049ea0e67909ed

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

Filesize
944B

MD5
ba169f4dcbbf147fe78ef0061a95e83b

SHA1
92a571a6eef49fff666e0f62a3545bcd1cdcda67

SHA256
5ef1421e19fde4bc03cd825dd7d6c0e7863f85fd8f0aa4a4d4f8d555dc7606d1

SHA512
8d2e5e552210dcda684682538bc964fdd8a8ff5b24cc2cc8af813729f0202191f98eb42d38d2355df17ae620fe401aad6ceaedaed3b112fdacd32485a3a0c07c

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_owcd2pzn.4qz.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Public\FULLOPTION.exe

Filesize
3.9MB

MD5
8bc3bef3b25f503aff956735680ee173

SHA1
76916bad2964bf481ebe891932911eb5f9f4f288

SHA256
91a0c2becd82339bc45f56e43b5f32f422ce1c51360c5a3c3fdde244afd48dba

SHA512
71e9abd586466b1730d29808bdf77a4a5a5659cd1fe1ca53fea8dddf859ba0f7a7da1a517305ec57edd09245e8efaa5c3d7ec97a2203e3315374a4331ce5b4a9

Download Submit
C:\Users\Public\guest-tool.exe

Filesize
76KB

MD5
e32aaac90783d442e17c1fbd31767aee

SHA1
b2974be4d00d6dbee9d98b43fd830adc9261f1a7

SHA256
cedd1466f8c37294b89f0afed68a00125e34d839f56aa8241d3692c7376c9a0e

SHA512
f2c2a826c384c5a6f83447d48b54afe990ef8df5c0228dcf15946d5c5e2637bf288ef072cc5e9e7cd3fd9302170360bf792e8deb89af93b405d7a9c15dc71096

Download Submit
memory/2344-30-0x0000015862BC0000-0x0000015862BE2000-memory.dmp

Filesize
136KB

Download
memory/3572-0-0x00007FF80F383000-0x00007FF80F385000-memory.dmp

Filesize
8KB

Download
memory/3572-1-0x0000000000630000-0x0000000000A28000-memory.dmp

Filesize
4.0MB

Download
memory/4968-24-0x00007FF80F380000-0x00007FF80FE41000-memory.dmp

Filesize
10.8MB

Download
memory/4968-23-0x00007FF80F380000-0x00007FF80FE41000-memory.dmp

Filesize
10.8MB

Download
memory/4968-22-0x0000000000AA0000-0x0000000000ABA000-memory.dmp

Filesize
104KB

Download
memory/4968-74-0x00007FF80F380000-0x00007FF80FE41000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads