xworm | 7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3

General

Target

7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe
Size

62KB
MD5

27073262c053ce8de5d3ca9cd80b04c0
SHA1

f4958421fb58916bba8f78c914934eacbc4685f2
SHA256

7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3
SHA512

53ebd126fc6a47bd3f73ddbc63f0963a3937348f7a1564af1d61d17536cef5a9c1618f38f73f501ccbbad80eeb83d569dadae266430ee69adfe9587a9359741b
SSDEEP

768:9cSO/q11X3zEBAd+sSphlECCuyyzdXMgr9tLWbspkpNUfcTjYmQ6g8KOHhH9+0nu:Sj6GsSQyZMe9tSbspkYeK68OH22u

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:55303

NareReti-22747.portmap.host:55303

NareReti-55303.portmap.host:55303

Attributes

Install_directory
%ProgramData%
install_file
Updater.exe
telegram
https://api.telegram.org/bot6840191997:AAGAMBGwNzL_wSKuYrOBbKDIGphrx-yRlhI

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2516-1-0x0000000001360000-0x0000000001376000-memory.dmp	family_xworm
behavioral1/files/0x000f0000000131aa-35.dat	family_xworm
behavioral1/memory/2884-37-0x0000000001370000-0x0000000001386000-memory.dmp	family_xworm
behavioral1/memory/3040-40-0x0000000000300000-0x0000000000316000-memory.dmp	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2868	powershell.exe
3020	powershell.exe
2044	powershell.exe
2292	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Updater.lnk	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Updater.lnk	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe

Executes dropped EXE 2 IoCs

pid	Process
2884	Updater.exe
3040	Updater.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\Updater = "C:\\ProgramData\\Updater.exe"	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.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
1716	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2868	powershell.exe
3020	powershell.exe
2044	powershell.exe
2292	powershell.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2516	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe
Token: SeDebugPrivilege	2868	powershell.exe
Token: SeDebugPrivilege	3020	powershell.exe
Token: SeDebugPrivilege	2044	powershell.exe
Token: SeDebugPrivilege	2292	powershell.exe
Token: SeDebugPrivilege	2516	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe
Token: SeDebugPrivilege	2884	Updater.exe
Token: SeDebugPrivilege	3040	Updater.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 2868	2516	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe	32
PID 2516 wrote to memory of 2868	2516	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe	32
PID 2516 wrote to memory of 2868	2516	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe	32
PID 2516 wrote to memory of 3020	2516	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe	34
PID 2516 wrote to memory of 3020	2516	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe	34
PID 2516 wrote to memory of 3020	2516	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe	34
PID 2516 wrote to memory of 2044	2516	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe	36
PID 2516 wrote to memory of 2044	2516	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe	36
PID 2516 wrote to memory of 2044	2516	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe	36
PID 2516 wrote to memory of 2292	2516	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe	38
PID 2516 wrote to memory of 2292	2516	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe	38
PID 2516 wrote to memory of 2292	2516	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe	38
PID 2516 wrote to memory of 1716	2516	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe	40
PID 2516 wrote to memory of 1716	2516	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe	40
PID 2516 wrote to memory of 1716	2516	7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe	40
PID 2032 wrote to memory of 2884	2032	taskeng.exe	43
PID 2032 wrote to memory of 2884	2032	taskeng.exe	43
PID 2032 wrote to memory of 2884	2032	taskeng.exe	43
PID 2032 wrote to memory of 3040	2032	taskeng.exe	44
PID 2032 wrote to memory of 3040	2032	taskeng.exe	44
PID 2032 wrote to memory of 3040	2032	taskeng.exe	44

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\7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe
"C:\Users\Admin\AppData\Local\Temp\7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2516
- 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\7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2868
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3020
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\Updater.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2044
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Updater.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2292
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Updater" /tr "C:\ProgramData\Updater.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1716

C:\Windows\system32\taskeng.exe
taskeng.exe {6440EE39-C2BA-4F31-B247-A6904CAA680F} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2032
- C:\ProgramData\Updater.exe
  C:\ProgramData\Updater.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2884
- C:\ProgramData\Updater.exe
  C:\ProgramData\Updater.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

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

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Updater.exe

Filesize
62KB

MD5
27073262c053ce8de5d3ca9cd80b04c0

SHA1
f4958421fb58916bba8f78c914934eacbc4685f2

SHA256
7d6ff01e6a8805bcc7678aabd3c71ba8493bc0e93cfa05c3c4a9621d481b26a3

SHA512
53ebd126fc6a47bd3f73ddbc63f0963a3937348f7a1564af1d61d17536cef5a9c1618f38f73f501ccbbad80eeb83d569dadae266430ee69adfe9587a9359741b

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

Filesize
7KB

MD5
2f9ff19526b8eccbe0b31e7c83d63d42

SHA1
3d120994bad4cde4692d42a4069d9d70e41fef57

SHA256
8953409ec44795c7b5ee56302dc32a48227c97915ea30f915a53379374b49f78

SHA512
0d951749452fb635696e6bbd8e65112864407c981ae8fb0f7eb304e7a69a7cb16b0fddb239fd0d1485bf6021f8af4f6e1037c70f2a491875abe5aa45607ebd00

Download Submit
memory/2516-2-0x000007FEF6720000-0x000007FEF710C000-memory.dmp

Filesize
9.9MB

Download
memory/2516-0-0x000007FEF6723000-0x000007FEF6724000-memory.dmp

Filesize
4KB

Download
memory/2516-28-0x000007FEF6723000-0x000007FEF6724000-memory.dmp

Filesize
4KB

Download
memory/2516-33-0x000007FEF6720000-0x000007FEF710C000-memory.dmp

Filesize
9.9MB

Download
memory/2516-1-0x0000000001360000-0x0000000001376000-memory.dmp

Filesize
88KB

Download
memory/2868-7-0x00000000027F0000-0x0000000002870000-memory.dmp

Filesize
512KB

Download
memory/2868-8-0x000000001B630000-0x000000001B912000-memory.dmp

Filesize
2.9MB

Download
memory/2868-9-0x0000000001E10000-0x0000000001E18000-memory.dmp

Filesize
32KB

Download
memory/2884-37-0x0000000001370000-0x0000000001386000-memory.dmp

Filesize
88KB

Download
memory/3020-15-0x000000001B5C0000-0x000000001B8A2000-memory.dmp

Filesize
2.9MB

Download
memory/3020-16-0x0000000002240000-0x0000000002248000-memory.dmp

Filesize
32KB

Download
memory/3040-40-0x0000000000300000-0x0000000000316000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads