xworm | d8c874b2f3101b888c0307a3135326263d65665adf93e5cada122c765a054adc

Analysis

max time kernel
133s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05/11/2024, 10:11

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General

Target

d8c874b2f3101b888c0307a3135326263d65665adf93e5cada122c765a054adc.exe
Size

158KB
MD5

f39aa63640544e201c35e4ecc70f5b6c
SHA1

6f7cbcf265f9a8160df7e9f5344a377e26da93c1
SHA256

d8c874b2f3101b888c0307a3135326263d65665adf93e5cada122c765a054adc
SHA512

2ea8ac295d56cb017719eeca9eabc34fd23f724749d83883584d3a639b50ae2245e3eb89467d1621716c3ed54afcd822311c892fa15278b125329d93612ab08a
SSDEEP

3072:VyQjswuedxx2GFQ5psohfNUshn76Wtve7gRPyXVxj+5OWO8GwmQqoyK+EtY:VyQYOdyIQ5pvhfDn7HvcHC9Gw/ixE

Score

10^/10

xworm discovery rat trojan

Malware Config

Extracted

Family

xworm

xxxx.freedynamicdns.net:1997

Attributes

Install_directory
%LocalAppData%
install_file
explorer.exe
telegram
https://api.telegram.org/bot7470132733:AAFv29agMHCbkbiHbNHt7LzTib-Els5808o/sendMessage?chat_id=761641337

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1640-5-0x0000000004BC0000-0x0000000004BDA000-memory.dmp	family_xworm

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

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1444	1640	WerFault.exe	83

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	d8c874b2f3101b888c0307a3135326263d65665adf93e5cada122c765a054adc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1640	d8c874b2f3101b888c0307a3135326263d65665adf93e5cada122c765a054adc.exe

C:\Users\Admin\AppData\Local\Temp\d8c874b2f3101b888c0307a3135326263d65665adf93e5cada122c765a054adc.exe
"C:\Users\Admin\AppData\Local\Temp\d8c874b2f3101b888c0307a3135326263d65665adf93e5cada122c765a054adc.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1640
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1640 -s 1756
  2⤵
  - Program crash
  PID:1444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1640 -ip 1640
1⤵
PID:2404

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/1640-0-0x0000000074A6E000-0x0000000074A6F000-memory.dmp

Filesize
4KB

Download
memory/1640-1-0x00000000001E0000-0x000000000020E000-memory.dmp

Filesize
184KB

Download
memory/1640-2-0x0000000004C10000-0x0000000004CAC000-memory.dmp

Filesize
624KB

Download
memory/1640-3-0x0000000004B60000-0x0000000004B78000-memory.dmp

Filesize
96KB

Download
memory/1640-4-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1640-5-0x0000000004BC0000-0x0000000004BDA000-memory.dmp

Filesize
104KB

Download
memory/1640-6-0x0000000005230000-0x0000000005296000-memory.dmp

Filesize
408KB

Download
memory/1640-7-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download