xworm | cf8e5046effb930f4cbe727954ff23e2f02d6a91257ddca491d080f07018c5b6

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
01/11/2024, 20:13

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General

Target

b7de42db6732cca194950ed4b2958762.exe
Size

350KB
MD5

b7de42db6732cca194950ed4b2958762
SHA1

e676b09f930e97a404b4dfd1a173989c39fb2681
SHA256

cf8e5046effb930f4cbe727954ff23e2f02d6a91257ddca491d080f07018c5b6
SHA512

5a51ac59b4c10838874c413bf6adfbb646475603e079499489f09a2d9d0eb2c1ae7b96dd353fed428180af82b40b51f37b6393d75addfb7aefa17bb3c9845224
SSDEEP

6144:2yScVyir/fDNsNINOgKSKN6dNbSeUKmU:ZDaNC

Score

10^/10

xworm discovery rat trojan

Malware Config

Extracted

Family

xworm

crazyrdp.africa:7000

Attributes

install_file
USB.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2344-7-0x0000000000400000-0x000000000041A000-memory.dmp	family_xworm

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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\wziQALvd.url	b7de42db6732cca194950ed4b2958762.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.

flow	ioc
43	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1924 set thread context of 2344	1924	b7de42db6732cca194950ed4b2958762.exe	103

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4964	2344	WerFault.exe	103

System Location Discovery: System Language Discovery 1 TTPs 1 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	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1924	b7de42db6732cca194950ed4b2958762.exe
Token: SeDebugPrivilege	2344	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 2344	1924	b7de42db6732cca194950ed4b2958762.exe	103
PID 1924 wrote to memory of 2344	1924	b7de42db6732cca194950ed4b2958762.exe	103
PID 1924 wrote to memory of 2344	1924	b7de42db6732cca194950ed4b2958762.exe	103
PID 1924 wrote to memory of 2344	1924	b7de42db6732cca194950ed4b2958762.exe	103
PID 1924 wrote to memory of 2344	1924	b7de42db6732cca194950ed4b2958762.exe	103
PID 1924 wrote to memory of 2344	1924	b7de42db6732cca194950ed4b2958762.exe	103
PID 1924 wrote to memory of 2344	1924	b7de42db6732cca194950ed4b2958762.exe	103
PID 1924 wrote to memory of 2344	1924	b7de42db6732cca194950ed4b2958762.exe	103

C:\Users\Admin\AppData\Local\Temp\b7de42db6732cca194950ed4b2958762.exe
"C:\Users\Admin\AppData\Local\Temp\b7de42db6732cca194950ed4b2958762.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2344
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2344 -s 1632
    3⤵
    - Program crash
    PID:4964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2344 -ip 2344
1⤵
PID:2588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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/1924-0-0x00007FFDEF4D3000-0x00007FFDEF4D5000-memory.dmp

Filesize
8KB

Download
memory/1924-1-0x0000000000360000-0x00000000003BE000-memory.dmp

Filesize
376KB

Download
memory/1924-2-0x00007FFDEF4D0000-0x00007FFDEFF91000-memory.dmp

Filesize
10.8MB

Download
memory/1924-3-0x000000001B310000-0x000000001B33A000-memory.dmp

Filesize
168KB

Download
memory/1924-4-0x00007FFDEF4D3000-0x00007FFDEF4D5000-memory.dmp

Filesize
8KB

Download
memory/1924-5-0x00007FFDEF4D0000-0x00007FFDEFF91000-memory.dmp

Filesize
10.8MB

Download
memory/2344-7-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2344-8-0x0000000074D4E000-0x0000000074D4F000-memory.dmp

Filesize
4KB

Download
memory/2344-9-0x0000000004F30000-0x0000000004FCC000-memory.dmp

Filesize
624KB

Download
memory/2344-10-0x0000000004E90000-0x0000000004EF6000-memory.dmp

Filesize
408KB

Download
memory/2344-11-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/2344-12-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download