xworm | a51949df9057c52262a8e2a93bb34a76ec1a35374ba9ab6d2928f98f99af8f7f

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-11-2024 20:33

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General

Target

FrameHost.exe
Size

120KB
MD5

2e7bdd19ac4b1b5392d1d3ae047c9379
SHA1

67b4265da671de12bd3830f3e45f02e020ce85f4
SHA256

a51949df9057c52262a8e2a93bb34a76ec1a35374ba9ab6d2928f98f99af8f7f
SHA512

d83458902b1e430ae887a7a3b2b4cc328e965c61f30e40228bf8aba437c6185c16aef8eef031d8b69c7c436e226fad18b6792cc73f3642cd74f87cfddfc27646
SSDEEP

3072:n5NmCd8utYMmTCZbwW8clWOCo1a94Yjv:neCDYnWbWOCR6Yjv

Score

10^/10

xworm discovery rat trojan

Malware Config

Extracted

Family

xworm

93.123.109.89:7000

Attributes

Install_directory
%Temp%
install_file
ApplicationFrameHost.exe
telegram
https://api.telegram.org/bot7026989332:AAGmlQvBZEqqtR_5LGfdSJ8B_oJ6WH5oCYY

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1864-2-0x0000000000400000-0x0000000000418000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm
Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
21	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1212 set thread context of 1864	1212	FrameHost.exe	84

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3516	1864	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FrameHost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1864	vbc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1212 wrote to memory of 1864	1212	FrameHost.exe	84
PID 1212 wrote to memory of 1864	1212	FrameHost.exe	84
PID 1212 wrote to memory of 1864	1212	FrameHost.exe	84
PID 1212 wrote to memory of 1864	1212	FrameHost.exe	84
PID 1212 wrote to memory of 1864	1212	FrameHost.exe	84
PID 1212 wrote to memory of 1864	1212	FrameHost.exe	84
PID 1212 wrote to memory of 1864	1212	FrameHost.exe	84
PID 1212 wrote to memory of 1864	1212	FrameHost.exe	84

C:\Users\Admin\AppData\Local\Temp\FrameHost.exe
"C:\Users\Admin\AppData\Local\Temp\FrameHost.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1864
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1864 -s 1704
    3⤵
    - Program crash
    PID:3516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1864 -ip 1864
1⤵
PID:3620

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1212-0-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

Filesize
4KB

Download
memory/1212-1-0x0000000000BF0000-0x0000000000C14000-memory.dmp

Filesize
144KB

Download
memory/1212-5-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/1212-10-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/1864-2-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1864-4-0x0000000005880000-0x000000000591C000-memory.dmp

Filesize
624KB

Download
memory/1864-6-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/1864-7-0x0000000005920000-0x0000000005986000-memory.dmp

Filesize
408KB

Download
memory/1864-8-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/1864-9-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download