xworm | dda2cfe82f91fe2b329ca75917fcc21f39049608ec0b3058cebb86b0d1c8198b

General

Target

XWorm.exe
Size

140KB
MD5

ce59cf3857c092e27de6dabceb157d09
SHA1

04b60381eec2a1f90eac81607c6467274b4b5d9a
SHA256

dda2cfe82f91fe2b329ca75917fcc21f39049608ec0b3058cebb86b0d1c8198b
SHA512

6d727f5587350cd6d9823feaf870ee32883b6cfefcb35d36dc8fd198e4a87069cf4e51d4c9e793d86d255d21724cdba9239986512edfa69149c796f5580b233e
SSDEEP

1536:PcGNovtlF8/iEJIkOPwl02biqfbZWq1baS9moy6gcmgOYY08TsEEqmyVttdGFQer:0GNyjWZ99bZZT9ufgOz08TLEqmyBer

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:37915

5.39.43.50:37915

de-engines.gl.at.ply.gg:37915

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4812-0-0x0000000000380000-0x00000000003A8000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
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

Processes:

XWorm.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation XWorm.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation	XWorm.exe

Drops startup file 2 IoCs

Processes:

XWorm.exe

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

XWorm.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	XWorm.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.

Processes:

flow ioc

3 ip-api.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

flow	ioc
3	ip-api.com

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeXWorm.exe

pid	process
4972	powershell.exe
4972	powershell.exe
3088	powershell.exe
3088	powershell.exe
1356	powershell.exe
1356	powershell.exe
1996	powershell.exe
1996	powershell.exe
4812	XWorm.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

XWorm.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	4812	XWorm.exe
Token: SeDebugPrivilege	4972	powershell.exe
Token: SeDebugPrivilege	3088	powershell.exe
Token: SeDebugPrivilege	1356	powershell.exe
Token: SeDebugPrivilege	1996	powershell.exe
Token: SeDebugPrivilege	4812	XWorm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

XWorm.exe

pid process

4812 XWorm.exe

pid	process
4812	XWorm.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

XWorm.exe

description	pid	process	target process
PID 4812 wrote to memory of 4972	4812	XWorm.exe	powershell.exe
PID 4812 wrote to memory of 4972	4812	XWorm.exe	powershell.exe
PID 4812 wrote to memory of 3088	4812	XWorm.exe	powershell.exe
PID 4812 wrote to memory of 3088	4812	XWorm.exe	powershell.exe
PID 4812 wrote to memory of 1356	4812	XWorm.exe	powershell.exe
PID 4812 wrote to memory of 1356	4812	XWorm.exe	powershell.exe
PID 4812 wrote to memory of 1996	4812	XWorm.exe	powershell.exe
PID 4812 wrote to memory of 1996	4812	XWorm.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\XWorm.exe
"C:\Users\Admin\AppData\Local\Temp\XWorm.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4812

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\XWorm.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4972

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XWorm.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3088

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\XClient.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1356

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1996

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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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\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
98baf5117c4fcec1692067d200c58ab3

SHA1
5b33a57b72141e7508b615e17fb621612cb8e390

SHA256
30bf8496e9a08f4fdfe4767abcd565f92b6da06ca1c7823a70cb7cab16262e51

SHA512
344a70bfc037d54176f12db91f05bf4295bb587a5062fd1febe6f52853571170bd8ef6042cb87b893185bbae1937cf77b679d7970f8cc1c2666b0b7c1b32987d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
944B

MD5
d8cb3e9459807e35f02130fad3f9860d

SHA1
5af7f32cb8a30e850892b15e9164030a041f4bd6

SHA256
2b139c74072ccbdaa17b950f32a6dbc934dfb7af9973d97c9b0d9c498012ba68

SHA512
045239ba31367fbdd59e883f74eafc05724e23bd6e8f0c1e7171ea2496a497eb9e0cfcb57285bb81c4d569daadba43d6ef64c626ca48f1e2a59e8d97f0cc9184

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_532hitai.ka3.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1356-42-0x000001ED4A3D0000-0x000001ED4A5EC000-memory.dmp

Filesize
2.1MB

Download
memory/1996-54-0x000001FA18800000-0x000001FA18A1C000-memory.dmp

Filesize
2.1MB

Download
memory/4812-2-0x000000001B180000-0x000000001B190000-memory.dmp

Filesize
64KB

Download
memory/4812-0-0x0000000000380000-0x00000000003A8000-memory.dmp

Filesize
160KB

Download
memory/4812-1-0x00007FFA2AC00000-0x00007FFA2B6C1000-memory.dmp

Filesize
10.8MB

Download
memory/4812-59-0x00007FFA2AC00000-0x00007FFA2B6C1000-memory.dmp

Filesize
10.8MB

Download
memory/4812-60-0x000000001B180000-0x000000001B190000-memory.dmp

Filesize
64KB

Download
memory/4972-5-0x000001CAEDF00000-0x000001CAEDF10000-memory.dmp

Filesize
64KB

Download
memory/4972-4-0x000001CAEE050000-0x000001CAEE072000-memory.dmp

Filesize
136KB

Download
memory/4972-18-0x00007FFA2AC00000-0x00007FFA2B6C1000-memory.dmp

Filesize
10.8MB

Download
memory/4972-6-0x000001CAEDF00000-0x000001CAEDF10000-memory.dmp

Filesize
64KB

Download
memory/4972-3-0x00007FFA2AC00000-0x00007FFA2B6C1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads