xworm | f645030d125dac92a38f919cc0b134f7cba5f70f0fc5ce421a532dfe1515c22e

General

Target

XWorm Ping Optimizer.exe
Size

209KB
MD5

43bb693a4d3ca23a85015b487f0db69a
SHA1

4a29501c02988e111c2c6c9dccdbd135c119a4e8
SHA256

f645030d125dac92a38f919cc0b134f7cba5f70f0fc5ce421a532dfe1515c22e
SHA512

3694b42ef2f8ad357df9934349c100a0fd6a8386c7859ee1299bc34ba200429ac9584695a174050c425c91f120d9f40091773963e9a3427c323f614a36b7ca13
SSDEEP

3072:ugUv1gB5CLa9bqqsBoO/Ya1W7T4MxK08cnNizrQxs/DrGQG3v9RfPJ:uJ1I5CLqbYlIT4MxKJzrAP

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

functions-screensavers.gl.at.ply.gg:11035

Attributes

Install_directory
%Temp%
install_file
XWorm Auto Updater.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/1896-1-0x0000000000BA0000-0x0000000000BD8000-memory.dmp	family_xworm

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

Drops startup file 2 IoCs

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

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-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Windows\CurrentVersion\Run\XWorm Auto Updater = "C:\\Users\\Admin\\AppData\\Local\\Temp\\XWorm Auto Updater.exe"	XWorm Ping Optimizer.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
2000	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2572	powershell.exe
2808	powershell.exe
2428	powershell.exe
1924	powershell.exe
1896	XWorm Ping Optimizer.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1896	XWorm Ping Optimizer.exe
Token: SeDebugPrivilege	2572	powershell.exe
Token: SeDebugPrivilege	2808	powershell.exe
Token: SeDebugPrivilege	2428	powershell.exe
Token: SeDebugPrivilege	1924	powershell.exe
Token: SeDebugPrivilege	1896	XWorm Ping Optimizer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1896	XWorm Ping Optimizer.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1896 wrote to memory of 2572	1896	XWorm Ping Optimizer.exe	30
PID 1896 wrote to memory of 2572	1896	XWorm Ping Optimizer.exe	30
PID 1896 wrote to memory of 2572	1896	XWorm Ping Optimizer.exe	30
PID 1896 wrote to memory of 2808	1896	XWorm Ping Optimizer.exe	32
PID 1896 wrote to memory of 2808	1896	XWorm Ping Optimizer.exe	32
PID 1896 wrote to memory of 2808	1896	XWorm Ping Optimizer.exe	32
PID 1896 wrote to memory of 2428	1896	XWorm Ping Optimizer.exe	35
PID 1896 wrote to memory of 2428	1896	XWorm Ping Optimizer.exe	35
PID 1896 wrote to memory of 2428	1896	XWorm Ping Optimizer.exe	35
PID 1896 wrote to memory of 1924	1896	XWorm Ping Optimizer.exe	36
PID 1896 wrote to memory of 1924	1896	XWorm Ping Optimizer.exe	36
PID 1896 wrote to memory of 1924	1896	XWorm Ping Optimizer.exe	36
PID 1896 wrote to memory of 2000	1896	XWorm Ping Optimizer.exe	39
PID 1896 wrote to memory of 2000	1896	XWorm Ping Optimizer.exe	39
PID 1896 wrote to memory of 2000	1896	XWorm Ping Optimizer.exe	39

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\XWorm Ping Optimizer.exe
"C:\Users\Admin\AppData\Local\Temp\XWorm Ping Optimizer.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1896
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XWorm Ping Optimizer.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2572
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XWorm Ping Optimizer.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2808
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XWorm Auto Updater.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2428
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XWorm Auto Updater.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1924
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XWorm Auto Updater" /tr "C:\Users\Admin\AppData\Local\Temp\XWorm Auto Updater.exe"
  2⤵
  - Creates scheduled task(s)
  PID:2000

C:\Windows\system32\taskeng.exe
taskeng.exe {B6072E8C-4B3E-4B7B-8185-BE9809C7552B} S-1-5-21-3185155662-718608226-894467740-1000:YETUIZPU\Admin:Interactive:[1]
1⤵
PID:1640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
aaac3959f00c4858fa1956a88aa4c557

SHA1
8d3c58db530d0b62d49da7c17ec32f9fd79572bc

SHA256
515d7e602e8256ac07dd527c2e5149cfa158b3f392475fb6c79b8396aa213169

SHA512
3dac758c20db344c710ca2cac753abea2487b1ca9f3483eab259b46bfa9a12d57aa950ba772bea84210e8a35414688788a4ec2fbef3480395441a4a431967c77

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
aaac3959f00c4858fa1956a88aa4c557

SHA1
8d3c58db530d0b62d49da7c17ec32f9fd79572bc

SHA256
515d7e602e8256ac07dd527c2e5149cfa158b3f392475fb6c79b8396aa213169

SHA512
3dac758c20db344c710ca2cac753abea2487b1ca9f3483eab259b46bfa9a12d57aa950ba772bea84210e8a35414688788a4ec2fbef3480395441a4a431967c77

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
aaac3959f00c4858fa1956a88aa4c557

SHA1
8d3c58db530d0b62d49da7c17ec32f9fd79572bc

SHA256
515d7e602e8256ac07dd527c2e5149cfa158b3f392475fb6c79b8396aa213169

SHA512
3dac758c20db344c710ca2cac753abea2487b1ca9f3483eab259b46bfa9a12d57aa950ba772bea84210e8a35414688788a4ec2fbef3480395441a4a431967c77

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\860YQ6IOQSLBEY4XOJ5M.temp

Filesize
7KB

MD5
aaac3959f00c4858fa1956a88aa4c557

SHA1
8d3c58db530d0b62d49da7c17ec32f9fd79572bc

SHA256
515d7e602e8256ac07dd527c2e5149cfa158b3f392475fb6c79b8396aa213169

SHA512
3dac758c20db344c710ca2cac753abea2487b1ca9f3483eab259b46bfa9a12d57aa950ba772bea84210e8a35414688788a4ec2fbef3480395441a4a431967c77

Download Submit
memory/1896-0-0x000007FEF57F0000-0x000007FEF61DC000-memory.dmp

Filesize
9.9MB

Download
memory/1896-1-0x0000000000BA0000-0x0000000000BD8000-memory.dmp

Filesize
224KB

Download
memory/1896-2-0x000007FEF57F0000-0x000007FEF61DC000-memory.dmp

Filesize
9.9MB

Download
memory/1896-59-0x0000000002000000-0x0000000002080000-memory.dmp

Filesize
512KB

Download
memory/1896-58-0x0000000002000000-0x0000000002080000-memory.dmp

Filesize
512KB

Download
memory/1924-51-0x0000000002870000-0x00000000028F0000-memory.dmp

Filesize
512KB

Download
memory/1924-49-0x0000000002870000-0x00000000028F0000-memory.dmp

Filesize
512KB

Download
memory/1924-50-0x0000000002870000-0x00000000028F0000-memory.dmp

Filesize
512KB

Download
memory/1924-48-0x000007FEEE9F0000-0x000007FEEF38D000-memory.dmp

Filesize
9.6MB

Download
memory/1924-47-0x000007FEEE9F0000-0x000007FEEF38D000-memory.dmp

Filesize
9.6MB

Download
memory/1924-52-0x0000000002870000-0x00000000028F0000-memory.dmp

Filesize
512KB

Download
memory/1924-53-0x000007FEEE9F0000-0x000007FEEF38D000-memory.dmp

Filesize
9.6MB

Download
memory/2428-40-0x0000000002850000-0x00000000028D0000-memory.dmp

Filesize
512KB

Download
memory/2428-39-0x0000000002850000-0x00000000028D0000-memory.dmp

Filesize
512KB

Download
memory/2428-38-0x0000000002850000-0x00000000028D0000-memory.dmp

Filesize
512KB

Download
memory/2428-37-0x0000000002850000-0x00000000028D0000-memory.dmp

Filesize
512KB

Download
memory/2428-36-0x000007FEEF800000-0x000007FEF019D000-memory.dmp

Filesize
9.6MB

Download
memory/2428-35-0x000007FEEF800000-0x000007FEF019D000-memory.dmp

Filesize
9.6MB

Download
memory/2428-41-0x000007FEEF800000-0x000007FEF019D000-memory.dmp

Filesize
9.6MB

Download
memory/2572-14-0x000007FEEF800000-0x000007FEF019D000-memory.dmp

Filesize
9.6MB

Download
memory/2572-13-0x000007FEEF800000-0x000007FEF019D000-memory.dmp

Filesize
9.6MB

Download
memory/2572-7-0x000000001B3C0000-0x000000001B6A2000-memory.dmp

Filesize
2.9MB

Download
memory/2572-8-0x0000000002490000-0x0000000002498000-memory.dmp

Filesize
32KB

Download
memory/2572-9-0x000007FEEF800000-0x000007FEF019D000-memory.dmp

Filesize
9.6MB

Download
memory/2572-10-0x0000000002580000-0x0000000002600000-memory.dmp

Filesize
512KB

Download
memory/2572-11-0x0000000002580000-0x0000000002600000-memory.dmp

Filesize
512KB

Download
memory/2572-12-0x0000000002580000-0x0000000002600000-memory.dmp

Filesize
512KB

Download
memory/2808-24-0x000007FEEE9F0000-0x000007FEEF38D000-memory.dmp

Filesize
9.6MB

Download
memory/2808-20-0x000000001B290000-0x000000001B572000-memory.dmp

Filesize
2.9MB

Download
memory/2808-21-0x00000000025E0000-0x00000000025E8000-memory.dmp

Filesize
32KB

Download
memory/2808-22-0x000007FEEE9F0000-0x000007FEEF38D000-memory.dmp

Filesize
9.6MB

Download
memory/2808-23-0x0000000002960000-0x00000000029E0000-memory.dmp

Filesize
512KB

Download
memory/2808-28-0x000007FEEE9F0000-0x000007FEEF38D000-memory.dmp

Filesize
9.6MB

Download
memory/2808-25-0x0000000002960000-0x00000000029E0000-memory.dmp

Filesize
512KB

Download
memory/2808-26-0x0000000002960000-0x00000000029E0000-memory.dmp

Filesize
512KB

Download
memory/2808-27-0x0000000002960000-0x00000000029E0000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads