xworm | a52f8f78ba063951c3e315c562df187b90c257a61585e4682821abf6cefec957

Analysis

max time kernel
143s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01/11/2024, 16:48

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General

Target

a52f8f78ba063951c3e315c562df187b90c257a61585e4682821abf6cefec957.exe
Size

77KB
MD5

4bd68436e78a4a0f7bb552e349ab418f
SHA1

a1c4c57efd9b246d85a47c523b5e0436b8c24deb
SHA256

a52f8f78ba063951c3e315c562df187b90c257a61585e4682821abf6cefec957
SHA512

070ebca410b909d0e0ce4ba9a8119aa45de42e1c8cffc18916b070e2ad6012f40f1b0784c375e8100a987ce84e71e51da353444241f9301217f159681c3d1bbd
SSDEEP

1536:0gfn5Lul8fEnR905wJcPaKIWs90kWTBw3ENm1Wa7v2:0gRuljR9YwJcinNedY52

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

0.tcp.in.ngrok.io:15792

Attributes

Install_directory
%AppData%
install_file
svсhost.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b21-6.dat	family_xworm
behavioral2/memory/3436-14-0x0000000000AD0000-0x0000000000AE6000-memory.dmp	family_xworm

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	a52f8f78ba063951c3e315c562df187b90c257a61585e4682821abf6cefec957.exe

Executes dropped EXE 1 IoCs

pid	Process
3436	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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svсhost = "C:\\Users\\Admin\\AppData\\Roaming\\svсhost.exe"	svchost.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
27	0.tcp.in.ngrok.io
54	0.tcp.in.ngrok.io
77	0.tcp.in.ngrok.io

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3436	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3436	svchost.exe
Token: SeDebugPrivilege	3436	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3436	svchost.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1284 wrote to memory of 3436	1284	a52f8f78ba063951c3e315c562df187b90c257a61585e4682821abf6cefec957.exe	84
PID 1284 wrote to memory of 3436	1284	a52f8f78ba063951c3e315c562df187b90c257a61585e4682821abf6cefec957.exe	84

C:\Users\Admin\AppData\Local\Temp\a52f8f78ba063951c3e315c562df187b90c257a61585e4682821abf6cefec957.exe
"C:\Users\Admin\AppData\Local\Temp\a52f8f78ba063951c3e315c562df187b90c257a61585e4682821abf6cefec957.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3436

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

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

Filesize
63KB

MD5
39476c74921658da58506252acd72f92

SHA1
6b79e09a712dd56e8800ee191f18ead43ba7006a

SHA256
26cab4dad2281e9683c56570546a1940d257ddafcc706af85d60975a4dd2bb65

SHA512
20b43bdd535e9fee2bfc988f83c4cdb72def36631d57a0444f2dccc3f03e1e450655d8eca5555e21b76588bb6228a45a6ee238cb23e8eeffddff618ea379dabd

Download Submit
memory/1284-0-0x00007FFC30343000-0x00007FFC30345000-memory.dmp

Filesize
8KB

Download
memory/1284-1-0x0000000000AC0000-0x0000000000ADA000-memory.dmp

Filesize
104KB

Download
memory/3436-14-0x0000000000AD0000-0x0000000000AE6000-memory.dmp

Filesize
88KB

Download
memory/3436-15-0x00007FFC30340000-0x00007FFC30E01000-memory.dmp

Filesize
10.8MB

Download
memory/3436-17-0x00007FFC30340000-0x00007FFC30E01000-memory.dmp

Filesize
10.8MB

Download