xworm | 61493f2dac1330b7b853c4af5298dbcfbdef56f4cbd44c2266e0d23ba9d44483

General

Target

AlisInjectorx64.exe
Size

540KB
MD5

5d577543e14898862de2fc5f4976af91
SHA1

38569f433469a7b9d04acc52158523ce7b3e6cf3
SHA256

61493f2dac1330b7b853c4af5298dbcfbdef56f4cbd44c2266e0d23ba9d44483
SHA512

223a01dc8c67da3889140a6e77a3a4721c35ba4254c165675053627dc5a558b790fdda286a545b92424a5690b6e0e3df8eacca21da67dea44a490170adacc165
SSDEEP

12288:IepEAmsrIPR7Ifas9YFu7QHzs1vnVRLhjg0BX:I2S4taanVHB

Score

10^/10

xworm defense_evasion discovery rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

cR9KWMfVyMWGAarG

Attributes

Install_directory
%AppData%
install_file
XClient.exe
pastebin_url
https://pastebin.com/raw/fSgk0zpE

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0034000000023c52-3.dat	family_xworm
behavioral2/memory/1952-18-0x0000000000880000-0x00000000008AE000-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 2 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-1-5-21-2278412438-3475196406-3686434223-1000\Control Panel\International\Geo\Nation	AlisInjectorx64.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2278412438-3475196406-3686434223-1000\Control Panel\International\Geo\Nation	msedge.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	msedge.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	msedge.exe

Executes dropped EXE 4 IoCs

pid	Process
1952	msedge.exe
3672	AlisInjector(x64).exe
1552	XClient.exe
4972	XClient.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
7	pastebin.com
6	pastebin.com

Obfuscated Files or Information: Command Obfuscation 1 TTPs
Adversaries may obfuscate content during command execution to impede detection.
defense_evasion

Command Obfuscation
T1027.010
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	AlisInjectorx64.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2848	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3220	powershell.exe
3220	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1952	msedge.exe
Token: SeDebugPrivilege	3220	powershell.exe
Token: SeDebugPrivilege	1952	msedge.exe
Token: SeDebugPrivilege	1552	XClient.exe
Token: SeDebugPrivilege	4972	XClient.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3392 wrote to memory of 3220	3392	AlisInjectorx64.exe	86
PID 3392 wrote to memory of 3220	3392	AlisInjectorx64.exe	86
PID 3392 wrote to memory of 3220	3392	AlisInjectorx64.exe	86
PID 3392 wrote to memory of 1952	3392	AlisInjectorx64.exe	88
PID 3392 wrote to memory of 1952	3392	AlisInjectorx64.exe	88
PID 3392 wrote to memory of 3672	3392	AlisInjectorx64.exe	89
PID 3392 wrote to memory of 3672	3392	AlisInjectorx64.exe	89
PID 1952 wrote to memory of 2848	1952	msedge.exe	90
PID 1952 wrote to memory of 2848	1952	msedge.exe	90

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\AlisInjectorx64.exe
"C:\Users\Admin\AppData\Local\Temp\AlisInjectorx64.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3392
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAGIAYwBhACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAHYAagBpACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAGIAZABmACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAGMAbgBnACMAPgA="
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3220
- C:\Users\Admin\AppData\Local\Temp\msedge.exe
  "C:\Users\Admin\AppData\Local\Temp\msedge.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1952
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2848
- C:\Users\Admin\AppData\Local\Temp\AlisInjector(x64).exe
  "C:\Users\Admin\AppData\Local\Temp\AlisInjector(x64).exe"
  2⤵
  - Executes dropped EXE
  PID:3672

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1552

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Obfuscated Files or Information

1

T1027

Command Obfuscation

1

T1027.010

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\XClient.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Local\Temp\AlisInjector(x64).exe

Filesize
373KB

MD5
b632f8ffc4243c626a0c5100ac1f2efe

SHA1
156143aa36efb7199c7857b042c5eccdeeeea0e2

SHA256
7569a0e2198640cacd8936519ed7e7fd27eab4bc3db3a033c04bc95c213bf40a

SHA512
69bf752a107f8062b56bcd553614d784b4f04f40758c68dd12e3552c1064954af6552692ddda796034d06082036847329bf3469ede8c33b8b19745ea8d039f18

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_agoaw4ph.5em.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\msedge.exe

Filesize
161KB

MD5
71c938b1700643db88bf57abf2df0efb

SHA1
2be0624b4a6d813daa0183d9df5dfeaa9f86a32b

SHA256
53c8644bcdec5d0acc598497d86737bac723da0489e61a547dfd02eaea56b459

SHA512
33c83e2606086a61e75293dd59173f9ffeee4a9806911223289dfdfd9470a568e4f7f743afc7553ed3e3140be0508908b5c54288ff3bf53fb9d0a16ac10d35db

Download Submit
memory/1952-17-0x00007FFB83CF3000-0x00007FFB83CF5000-memory.dmp

Filesize
8KB

Download
memory/1952-18-0x0000000000880000-0x00000000008AE000-memory.dmp

Filesize
184KB

Download
memory/1952-67-0x00007FFB83CF0000-0x00007FFB847B1000-memory.dmp

Filesize
10.8MB

Download
memory/1952-42-0x00007FFB83CF0000-0x00007FFB847B1000-memory.dmp

Filesize
10.8MB

Download
memory/3220-44-0x0000000075680000-0x00000000756CC000-memory.dmp

Filesize
304KB

Download
memory/3220-57-0x0000000007610000-0x000000000762A000-memory.dmp

Filesize
104KB

Download
memory/3220-35-0x0000000005E00000-0x0000000006154000-memory.dmp

Filesize
3.3MB

Download
memory/3220-37-0x0000000005060000-0x000000000507E000-memory.dmp

Filesize
120KB

Download
memory/3220-38-0x0000000006890000-0x00000000068DC000-memory.dmp

Filesize
304KB

Download
memory/3220-25-0x0000000005C90000-0x0000000005CF6000-memory.dmp

Filesize
408KB

Download
memory/3220-23-0x0000000005A80000-0x0000000005AA2000-memory.dmp

Filesize
136KB

Download
memory/3220-43-0x00000000074E0000-0x0000000007512000-memory.dmp

Filesize
200KB

Download
memory/3220-54-0x0000000006840000-0x000000000685E000-memory.dmp

Filesize
120KB

Download
memory/3220-55-0x0000000007520000-0x00000000075C3000-memory.dmp

Filesize
652KB

Download
memory/3220-56-0x0000000007C50000-0x00000000082CA000-memory.dmp

Filesize
6.5MB

Download
memory/3220-24-0x0000000005C20000-0x0000000005C86000-memory.dmp

Filesize
408KB

Download
memory/3220-58-0x0000000007680000-0x000000000768A000-memory.dmp

Filesize
40KB

Download
memory/3220-59-0x00000000078A0000-0x0000000007936000-memory.dmp

Filesize
600KB

Download
memory/3220-60-0x0000000007810000-0x0000000007821000-memory.dmp

Filesize
68KB

Download
memory/3220-61-0x0000000007850000-0x000000000785E000-memory.dmp

Filesize
56KB

Download
memory/3220-62-0x0000000007860000-0x0000000007874000-memory.dmp

Filesize
80KB

Download
memory/3220-63-0x0000000007940000-0x000000000795A000-memory.dmp

Filesize
104KB

Download
memory/3220-64-0x0000000007890000-0x0000000007898000-memory.dmp

Filesize
32KB

Download
memory/3220-22-0x0000000005420000-0x0000000005A48000-memory.dmp

Filesize
6.2MB

Download
memory/3220-21-0x0000000002D30000-0x0000000002D66000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads