xworm | ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973

General

Target

ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973.exe
Size

78KB
MD5

a8cc2daff88948c5943b0f929ec9486c
SHA1

7ccc506bc46d2887a5d4ded2df5caaac4a6f0203
SHA256

ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973
SHA512

a965155303de05a89954ebdb53a2a7cee7adc5de0bab55cdb1bda179a321ea93121d932acf7dc87a77cda64962bc8a445da59933492cc945b38c0e7d118802ba
SSDEEP

1536:J6KAswl3j+aQRiS2/rmmnx/7MZubpd9zQDACmqGn0LX790kCX+dgp:J6OD6jzxjPLxUACS0LtCFp

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

server2025.dns.army:7771

Attributes

Install_directory
%AppData%
install_file
system32.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000d000000023b3f-6.dat	family_xworm
behavioral2/memory/1264-14-0x00000000009B0000-0x00000000009C6000-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
1116	powershell.exe
3852	powershell.exe
2816	powershell.exe
1388	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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	XClient.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\system32.lnk	XClient.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\system32.lnk	XClient.exe

Executes dropped EXE 3 IoCs

pid	Process
1264	XClient.exe
4680	system32.exe
4856	system32.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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\system32 = "C:\\Users\\Admin\\AppData\\Roaming\\system32.exe"	XClient.exe

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
1604	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1116	powershell.exe
1116	powershell.exe
3852	powershell.exe
3852	powershell.exe
2816	powershell.exe
2816	powershell.exe
1388	powershell.exe
1388	powershell.exe
1264	XClient.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1264	XClient.exe
Token: SeDebugPrivilege	1116	powershell.exe
Token: SeDebugPrivilege	3852	powershell.exe
Token: SeDebugPrivilege	2816	powershell.exe
Token: SeDebugPrivilege	1388	powershell.exe
Token: SeDebugPrivilege	1264	XClient.exe
Token: SeDebugPrivilege	4680	system32.exe
Token: SeDebugPrivilege	4856	system32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1264	XClient.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 444 wrote to memory of 1264	444	ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973.exe	83
PID 444 wrote to memory of 1264	444	ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973.exe	83
PID 1264 wrote to memory of 1116	1264	XClient.exe	91
PID 1264 wrote to memory of 1116	1264	XClient.exe	91
PID 1264 wrote to memory of 3852	1264	XClient.exe	95
PID 1264 wrote to memory of 3852	1264	XClient.exe	95
PID 1264 wrote to memory of 2816	1264	XClient.exe	98
PID 1264 wrote to memory of 2816	1264	XClient.exe	98
PID 1264 wrote to memory of 1388	1264	XClient.exe	100
PID 1264 wrote to memory of 1388	1264	XClient.exe	100
PID 1264 wrote to memory of 1604	1264	XClient.exe	102
PID 1264 wrote to memory of 1604	1264	XClient.exe	102

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\ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973.exe
"C:\Users\Admin\AppData\Local\Temp\ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:444
- C:\ProgramData\XClient.exe
  "C:\ProgramData\XClient.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:1264
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\XClient.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1116
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3852
- - 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\system32.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2816
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'system32.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1388
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "system32" /tr "C:\Users\Admin\AppData\Roaming\system32.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1604

C:\Users\Admin\AppData\Roaming\system32.exe
C:\Users\Admin\AppData\Roaming\system32.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4680

C:\Users\Admin\AppData\Roaming\system32.exe
C:\Users\Admin\AppData\Roaming\system32.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4856

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:\ProgramData\XClient.exe

Filesize
64KB

MD5
6051e7b1e1e0a0746578ce805e218e3a

SHA1
7b815829c4464768bcf47334a247a7362ef3ef00

SHA256
f70ca1002bf997015a80bf1d62eda0bcb1c9888eb6c868a040a164d3889ad585

SHA512
0edd7da3011de54f9f2771a5c940064afa41429717dfffe67213b1847970d012e72a421e555bcef08d62d10b2a7c6e31b3ed6954205c4dc966c35d4a82765b99

Download Submit
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\system32.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
a7cc007980e419d553568a106210549a

SHA1
c03099706b75071f36c3962fcc60a22f197711e0

SHA256
a5735921fc72189c8bf577f3911486cf031708dc8d6bc764fe3e593c0a053165

SHA512
b9aaf29403c467daef80a1ae87478afc33b78f4e1ca16189557011bb83cf9b3e29a0f85c69fa209c45201fb28baca47d31756eee07b79c6312c506e8370f7666

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

Filesize
944B

MD5
47605a4dda32c9dff09a9ca441417339

SHA1
4f68c895c35b0dc36257fc8251e70b968c560b62

SHA256
e6254c2bc9846a76a4567ab91b6eae76e937307ff9301b65d577ffe6e15fe40a

SHA512
b6823b6e794a2fe3e4c4ecfb3f0d61a54821de7feb4f9e3e7fd463e7fbb5e6848f59865b487dafebeac431e4f4db81ef56836d94cac67da39852c566ed34a885

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_t3vmsbkk.uc0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/444-0-0x00007FF8D0883000-0x00007FF8D0885000-memory.dmp

Filesize
8KB

Download
memory/444-1-0x0000000000F00000-0x0000000000F1A000-memory.dmp

Filesize
104KB

Download
memory/1116-21-0x000001DEF7460000-0x000001DEF7482000-memory.dmp

Filesize
136KB

Download
memory/1264-15-0x00007FF8D0880000-0x00007FF8D1341000-memory.dmp

Filesize
10.8MB

Download
memory/1264-14-0x00000000009B0000-0x00000000009C6000-memory.dmp

Filesize
88KB

Download
memory/1264-66-0x00007FF8D0880000-0x00007FF8D1341000-memory.dmp

Filesize
10.8MB

Download
memory/1264-67-0x00007FF8D0880000-0x00007FF8D1341000-memory.dmp

Filesize
10.8MB

Download
memory/1264-68-0x00007FF8D0880000-0x00007FF8D1341000-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