xworm | ddd313c998b0b2e2b3b996adfcf787455d2f28d8588c9695c9e4e926187dafbd

General

Target

cf8e5046effb930f4cbe727954ff23e2f02d6a91257ddca491d080f07018c5b6.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

C2

crazyrdp.africa:7000

Attributes

install_file
USB.exe

Signatures

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral1/memory/380-11-0x0000000000400000-0x000000000041A000-memory.dmp	family_xworm
behavioral1/memory/380-19-0x0000000000400000-0x000000000041A000-memory.dmp	family_xworm
behavioral1/memory/380-17-0x0000000000400000-0x000000000041A000-memory.dmp	family_xworm
behavioral1/memory/380-15-0x0000000000400000-0x000000000041A000-memory.dmp	family_xworm
behavioral1/memory/380-13-0x0000000000400000-0x000000000041A000-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	cf8e5046effb930f4cbe727954ff23e2f02d6a91257ddca491d080f07018c5b6.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
4	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1996 set thread context of 380	1996	cf8e5046effb930f4cbe727954ff23e2f02d6a91257ddca491d080f07018c5b6.exe	31

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	1996	cf8e5046effb930f4cbe727954ff23e2f02d6a91257ddca491d080f07018c5b6.exe
Token: SeDebugPrivilege	380	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 380	1996	cf8e5046effb930f4cbe727954ff23e2f02d6a91257ddca491d080f07018c5b6.exe	31
PID 1996 wrote to memory of 380	1996	cf8e5046effb930f4cbe727954ff23e2f02d6a91257ddca491d080f07018c5b6.exe	31
PID 1996 wrote to memory of 380	1996	cf8e5046effb930f4cbe727954ff23e2f02d6a91257ddca491d080f07018c5b6.exe	31
PID 1996 wrote to memory of 380	1996	cf8e5046effb930f4cbe727954ff23e2f02d6a91257ddca491d080f07018c5b6.exe	31
PID 1996 wrote to memory of 380	1996	cf8e5046effb930f4cbe727954ff23e2f02d6a91257ddca491d080f07018c5b6.exe	31
PID 1996 wrote to memory of 380	1996	cf8e5046effb930f4cbe727954ff23e2f02d6a91257ddca491d080f07018c5b6.exe	31
PID 1996 wrote to memory of 380	1996	cf8e5046effb930f4cbe727954ff23e2f02d6a91257ddca491d080f07018c5b6.exe	31
PID 1996 wrote to memory of 380	1996	cf8e5046effb930f4cbe727954ff23e2f02d6a91257ddca491d080f07018c5b6.exe	31
PID 1996 wrote to memory of 380	1996	cf8e5046effb930f4cbe727954ff23e2f02d6a91257ddca491d080f07018c5b6.exe	31

C:\Users\Admin\AppData\Local\Temp\cf8e5046effb930f4cbe727954ff23e2f02d6a91257ddca491d080f07018c5b6.exe
"C:\Users\Admin\AppData\Local\Temp\cf8e5046effb930f4cbe727954ff23e2f02d6a91257ddca491d080f07018c5b6.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1996
- 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:380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/380-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/380-13-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/380-19-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/380-17-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/380-9-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/380-22-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

Filesize
4KB

Download
memory/380-7-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/380-11-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/380-23-0x0000000074A80000-0x000000007516E000-memory.dmp

Filesize
6.9MB

Download
memory/380-21-0x0000000074A80000-0x000000007516E000-memory.dmp

Filesize
6.9MB

Download
memory/380-20-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

Filesize
4KB

Download
memory/380-15-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/1996-5-0x000007FEF5C80000-0x000007FEF666C000-memory.dmp

Filesize
9.9MB

Download
memory/1996-0-0x000007FEF5C83000-0x000007FEF5C84000-memory.dmp

Filesize
4KB

Download
memory/1996-3-0x00000000005B0000-0x00000000005DA000-memory.dmp

Filesize
168KB

Download
memory/1996-2-0x000007FEF5C80000-0x000007FEF666C000-memory.dmp

Filesize
9.9MB

Download
memory/1996-1-0x0000000001220000-0x000000000127E000-memory.dmp

Filesize
376KB

Download
memory/1996-4-0x000007FEF5C83000-0x000007FEF5C84000-memory.dmp

Filesize
4KB

Download

Analysis

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