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/0x000d000000023b80-6.dat	family_xworm
behavioral2/memory/4680-14-0x00000000004E0000-0x00000000004F6000-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
1632	powershell.exe
2288	powershell.exe
208	powershell.exe
3596	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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\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
4680	XClient.exe
4936	system32.exe
184	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-1-5-21-3442511616-637977696-3186306149-1000\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
4548	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
208	powershell.exe
208	powershell.exe
3596	powershell.exe
3596	powershell.exe
1632	powershell.exe
1632	powershell.exe
2288	powershell.exe
2288	powershell.exe
4680	XClient.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	4680	XClient.exe
Token: SeDebugPrivilege	208	powershell.exe
Token: SeDebugPrivilege	3596	powershell.exe
Token: SeDebugPrivilege	1632	powershell.exe
Token: SeDebugPrivilege	2288	powershell.exe
Token: SeDebugPrivilege	4680	XClient.exe
Token: SeDebugPrivilege	4936	system32.exe
Token: SeDebugPrivilege	184	system32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4680	XClient.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 4680	1628	ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973.exe	83
PID 1628 wrote to memory of 4680	1628	ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973.exe	83
PID 4680 wrote to memory of 208	4680	XClient.exe	87
PID 4680 wrote to memory of 208	4680	XClient.exe	87
PID 4680 wrote to memory of 3596	4680	XClient.exe	89
PID 4680 wrote to memory of 3596	4680	XClient.exe	89
PID 4680 wrote to memory of 1632	4680	XClient.exe	91
PID 4680 wrote to memory of 1632	4680	XClient.exe	91
PID 4680 wrote to memory of 2288	4680	XClient.exe	93
PID 4680 wrote to memory of 2288	4680	XClient.exe	93
PID 4680 wrote to memory of 4548	4680	XClient.exe	98
PID 4680 wrote to memory of 4548	4680	XClient.exe	98

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:1628
- 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:4680
- - 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:208
- - 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:3596
- - 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:1632
- - 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:2288
- - 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:4548

C:\Users\Admin\AppData\Roaming\system32.exe
C:\Users\Admin\AppData\Roaming\system32.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4936

C:\Users\Admin\AppData\Roaming\system32.exe
C:\Users\Admin\AppData\Roaming\system32.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:184

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:\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
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
944B

MD5
c1b0a9f26c3e1786191e94e419f1fbf9

SHA1
7f3492f4ec2d93e164f43fe2606b53edcffd8926

SHA256
796649641966f606d7217bb94c5c0a6194eef518815dacc86feacdd78d3c1113

SHA512
fa0290d77372c26a2f14cb9b0002c222bc757ce7ad02516b884c59a1108f42eb4c76884f9edb6c7149f7c3fac917eda99b72a3b1d72b7e118a1d5a73cadd15a8

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

Filesize
944B

MD5
b51dc9e5ec3c97f72b4ca9488bbb4462

SHA1
5c1e8c0b728cd124edcacefb399bbd5e25b21bd3

SHA256
976f9534aa2976c85c2455bdde786a3f55d63aefdd40942eba1223c4c93590db

SHA512
0e5aa6cf64c535aefb833e5757b68e1094c87424abe2615a7d7d26b1b31eff358d12e36e75ca57fd690a9919b776600bf4c5c0e5a5df55366ba62238bdf3f280

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_crf1pbuo.mwm.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/208-21-0x000001EAC70B0000-0x000001EAC70D2000-memory.dmp

Filesize
136KB

Download
memory/1628-0-0x00007FFC27113000-0x00007FFC27115000-memory.dmp

Filesize
8KB

Download
memory/1628-1-0x0000000000360000-0x000000000037A000-memory.dmp

Filesize
104KB

Download
memory/4680-15-0x00007FFC27110000-0x00007FFC27BD1000-memory.dmp

Filesize
10.8MB

Download
memory/4680-14-0x00000000004E0000-0x00000000004F6000-memory.dmp

Filesize
88KB

Download
memory/4680-66-0x00007FFC27110000-0x00007FFC27BD1000-memory.dmp

Filesize
10.8MB

Download
memory/4680-67-0x00007FFC27110000-0x00007FFC27BD1000-memory.dmp

Filesize
10.8MB

Download
memory/4680-68-0x00007FFC27110000-0x00007FFC27BD1000-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