xworm | 9615a875deff7d17a7ca2d968bf3b65360d1f6f58babb85db3f158ffbe50fa3b

General

Target

adw.exe
Size

110KB
MD5

873d23b0d914da099007377274719e4e
SHA1

e821620eecd5231f8e529fd2496fee2ab07e34ff
SHA256

9615a875deff7d17a7ca2d968bf3b65360d1f6f58babb85db3f158ffbe50fa3b
SHA512

591d3de2e2c474d8bedbd9ebbc7d262aadec3a995f5437bd5adf8de8210f45b671622938629aa73d6fca39718df4c2833a42ff557e8818fe4cc65a29e73c006c
SSDEEP

1536:feOqrr19/Rt4mfKCAZKm+WVrB392RN6QWSOgqJEwKXONRl75X2iOb23lMgq59MF:WDvZiotm+Wxh4mQWSASIl75lOELFF

Score

10^/10

xworm credential_access persistence rat spyware stealer trojan

Malware Config

Extracted

Family

xworm

C2

dead-he.gl.at.ply.gg:57200

Attributes

Install_directory
%Public%
install_file
svchost.exe

Signatures

Contains code to disable Windows Defender 1 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

resource	yara_rule
behavioral1/memory/1676-19-0x0000000000ED0000-0x0000000000EDE000-memory.dmp	disable_win_def

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/files/0x00080000000120ff-5.dat	family_xworm
behavioral1/memory/1676-7-0x0000000001020000-0x000000000103E000-memory.dmp	family_xworm
behavioral1/memory/276-18-0x0000000000D60000-0x0000000000D7E000-memory.dmp	family_xworm
behavioral1/memory/1932-33-0x00000000003E0000-0x00000000003FE000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Drops startup file 2 IoCs

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

Executes dropped EXE 4 IoCs

pid	Process
1676	svchost.exe
276	svchost.exe
3016	svchost.exe
1932	svchost.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Public\\svchost.exe"	svchost.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

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

System Information Discovery
T1082

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
2908	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1676	svchost.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1676	svchost.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1676	svchost.exe
Token: SeDebugPrivilege	1676	svchost.exe
Token: SeDebugPrivilege	276	svchost.exe
Token: SeDebugPrivilege	3016	svchost.exe
Token: SeDebugPrivilege	1932	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1676	svchost.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 1676	2416	adw.exe	30
PID 2416 wrote to memory of 1676	2416	adw.exe	30
PID 2416 wrote to memory of 1676	2416	adw.exe	30
PID 1676 wrote to memory of 2908	1676	svchost.exe	32
PID 1676 wrote to memory of 2908	1676	svchost.exe	32
PID 1676 wrote to memory of 2908	1676	svchost.exe	32
PID 1800 wrote to memory of 276	1800	taskeng.exe	36
PID 1800 wrote to memory of 276	1800	taskeng.exe	36
PID 1800 wrote to memory of 276	1800	taskeng.exe	36
PID 1800 wrote to memory of 3016	1800	taskeng.exe	37
PID 1800 wrote to memory of 3016	1800	taskeng.exe	37
PID 1800 wrote to memory of 3016	1800	taskeng.exe	37
PID 1800 wrote to memory of 1932	1800	taskeng.exe	38
PID 1800 wrote to memory of 1932	1800	taskeng.exe	38
PID 1800 wrote to memory of 1932	1800	taskeng.exe	38

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\adw.exe
"C:\Users\Admin\AppData\Local\Temp\adw.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Users\Admin\AppData\Local\svchost.exe
  "C:\Users\Admin\AppData\Local\svchost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1676
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Public\svchost.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2908

C:\Windows\system32\taskeng.exe
taskeng.exe {DF1A8BD6-CD62-4801-A9E7-E83147BA78CD} S-1-5-21-3450744190-3404161390-554719085-1000:PDIZKVQX\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1800
- C:\Users\Public\svchost.exe
  C:\Users\Public\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:276
- C:\Users\Public\svchost.exe
  C:\Users\Public\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3016
- C:\Users\Public\svchost.exe
  C:\Users\Public\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1932

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\svchost.exe

Filesize
93KB

MD5
8d04dd1724cebcf83c6444a89f3cc284

SHA1
f3c70909956bbfb7807bfc816d198e8aa2d4928c

SHA256
c693a093fac8ddbfe9e2ba991df7fd70e685bad91ade6e9193802dabe8b64162

SHA512
f4582b3f8d98516cdbf77efb9acfd27b9cf687cdf75291b3f3bcb474a91f04947fbe6845c699e6abe9935c5a6089fde2ef256ee98fa512f8a3ce6c81d5f57e1c

Download Submit
memory/276-18-0x0000000000D60000-0x0000000000D7E000-memory.dmp

Filesize
120KB

Download
memory/1676-21-0x0000000000EE0000-0x0000000000EFC000-memory.dmp

Filesize
112KB

Download
memory/1676-26-0x000000001B310000-0x000000001B35A000-memory.dmp

Filesize
296KB

Download
memory/1676-8-0x000007FEF5FA0000-0x000007FEF698C000-memory.dmp

Filesize
9.9MB

Download
memory/1676-9-0x000007FEF5FA0000-0x000007FEF698C000-memory.dmp

Filesize
9.9MB

Download
memory/1676-14-0x000007FEF5FA0000-0x000007FEF698C000-memory.dmp

Filesize
9.9MB

Download
memory/1676-31-0x0000000001010000-0x000000000101E000-memory.dmp

Filesize
56KB

Download
memory/1676-19-0x0000000000ED0000-0x0000000000EDE000-memory.dmp

Filesize
56KB

Download
memory/1676-20-0x000000001D640000-0x000000001D922000-memory.dmp

Filesize
2.9MB

Download
memory/1676-29-0x000000001DFC0000-0x000000001E310000-memory.dmp

Filesize
3.3MB

Download
memory/1676-22-0x000000001AD30000-0x000000001AD78000-memory.dmp

Filesize
288KB

Download
memory/1676-23-0x0000000001000000-0x0000000001008000-memory.dmp

Filesize
32KB

Download
memory/1676-24-0x000000001B900000-0x000000001B9A6000-memory.dmp

Filesize
664KB

Download
memory/1676-25-0x000000001ADF0000-0x000000001AE24000-memory.dmp

Filesize
208KB

Download
memory/1676-7-0x0000000001020000-0x000000000103E000-memory.dmp

Filesize
120KB

Download
memory/1676-27-0x000000001AC90000-0x000000001ACA6000-memory.dmp

Filesize
88KB

Download
memory/1932-33-0x00000000003E0000-0x00000000003FE000-memory.dmp

Filesize
120KB

Download
memory/2416-0-0x000007FEF5FA3000-0x000007FEF5FA4000-memory.dmp

Filesize
4KB

Download
memory/2416-1-0x0000000000980000-0x00000000009A2000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads