xworm | 412621eea530f0835ff50ff44c174b55d45fd36400319b054788920535b7d586

General

Target

test.exe
Size

59KB
MD5

0989805ebfa10a6112b1e19846182c95
SHA1

9c101d98d26c6d5e2374e4d8baab393631d358d8
SHA256

412621eea530f0835ff50ff44c174b55d45fd36400319b054788920535b7d586
SHA512

c96cbc20c5bf93cac574fa6795bc413f7a8e0becab5343bf824819ab9443ae41fd05ec5976ba89888b97aef5e95df561b7f1e57d2251ebb9dfcd5348e044d602
SSDEEP

1536:2nF3FOqPlMQvp7eq6IzbhY1iv2n+u65n18ZCOmTzg5:2nFxPqG7YIzby1B+118IOmTU5

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

C2

Jameson1312313-53869.portmap.host:53869:8848

Attributes

Install_directory
%AppData%
install_file
fortnite.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2184-1-0x00000000006A0000-0x00000000006B6000-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 3 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1016	powershell.exe
1136	powershell.exe
1780	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-1-5-21-250031470-1197856012-2659781506-1000\Control Panel\International\Geo\Nation	test.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\test.lnk	test.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\test.lnk	test.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-1-5-21-250031470-1197856012-2659781506-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\test = "C:\\Users\\Admin\\AppData\\Roaming\\test.exe"	test.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1016	powershell.exe
1016	powershell.exe
1136	powershell.exe
1136	powershell.exe
1780	powershell.exe
1780	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2184	test.exe
Token: SeDebugPrivilege	1016	powershell.exe
Token: SeDebugPrivilege	1136	powershell.exe
Token: SeDebugPrivilege	1780	powershell.exe
Token: SeDebugPrivilege	2184	test.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2184 wrote to memory of 1016	2184	test.exe	89
PID 2184 wrote to memory of 1016	2184	test.exe	89
PID 2184 wrote to memory of 1136	2184	test.exe	93
PID 2184 wrote to memory of 1136	2184	test.exe	93
PID 2184 wrote to memory of 1780	2184	test.exe	95
PID 2184 wrote to memory of 1780	2184	test.exe	95

C:\Users\Admin\AppData\Local\Temp\test.exe
"C:\Users\Admin\AppData\Local\Temp\test.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2184
- 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\test.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1016
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'test.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1136
- 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\test.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

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

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\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
f3bc9dee8a80a73a256a69e26fe61c07

SHA1
bc546c10ce1b4cb47b89ea60498384f88f96fa5a

SHA256
3c7f3194722f46cb07885da576daf720a5133913b3fbce4a3ef8c8040028364d

SHA512
be2d861832db826ee67f03e6a9151dc6802481c3b5984ce457e43cebecd162f60460ccf7ac5893169d01eff77e2a863c5e323d68e07f2b1b3d6dab5884f7ac6a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uzop10zi.y0y.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1016-12-0x00007FFE791F0000-0x00007FFE79CB1000-memory.dmp

Filesize
10.8MB

Download
memory/1016-13-0x00007FFE791F0000-0x00007FFE79CB1000-memory.dmp

Filesize
10.8MB

Download
memory/1016-14-0x00007FFE791F0000-0x00007FFE79CB1000-memory.dmp

Filesize
10.8MB

Download
memory/1016-15-0x00007FFE791F0000-0x00007FFE79CB1000-memory.dmp

Filesize
10.8MB

Download
memory/1016-18-0x00007FFE791F0000-0x00007FFE79CB1000-memory.dmp

Filesize
10.8MB

Download
memory/1016-2-0x0000027A48EA0000-0x0000027A48EC2000-memory.dmp

Filesize
136KB

Download
memory/2184-0-0x00007FFE791F3000-0x00007FFE791F5000-memory.dmp

Filesize
8KB

Download
memory/2184-1-0x00000000006A0000-0x00000000006B6000-memory.dmp

Filesize
88KB

Download
memory/2184-44-0x00007FFE791F3000-0x00007FFE791F5000-memory.dmp

Filesize
8KB

Download
memory/2184-49-0x00007FFE791F0000-0x00007FFE79CB1000-memory.dmp

Filesize
10.8MB

Download
memory/2184-50-0x00007FFE791F0000-0x00007FFE79CB1000-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