xworm | 5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09

General

Target

5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe
Size

49KB
MD5

4e5ba87d709a29a1d916192cf460de70
SHA1

79acd66d658dcb635d994fb8c135455abc0f69f8
SHA256

5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09
SHA512

88a41839d9933b495be4e1da46b05d7cb20d8207b2ed615af1f8a88a2c005e0094ff1ad5fbd81191ee8f191b2e432b0b457d3d8107d9f347bd06e59a339da353
SSDEEP

1536:G4TlXi94kgMLEhNkoyIWwClDVC9D2XPs9H:F5Xz3MYuwV9QPsZ

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Mutex

WDJjJwZM6N0epwZX

Attributes

Install_directory
%AppData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2100-24-0x0000000000600000-0x000000000060E000-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 3 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2864	powershell.exe
2616	powershell.exe
2432	powershell.exe

Executes dropped EXE 2 IoCs

pid	Process
1336	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe
1680	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.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

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
1256	schtasks.exe
1404	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2864	powershell.exe
2616	powershell.exe
2432	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2100	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe
Token: SeDebugPrivilege	2864	powershell.exe
Token: SeDebugPrivilege	2616	powershell.exe
Token: SeDebugPrivilege	2432	powershell.exe
Token: SeDebugPrivilege	1336	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe
Token: SeDebugPrivilege	1680	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2864	2100	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	32
PID 2100 wrote to memory of 2864	2100	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	32
PID 2100 wrote to memory of 2864	2100	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	32
PID 2100 wrote to memory of 2616	2100	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	34
PID 2100 wrote to memory of 2616	2100	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	34
PID 2100 wrote to memory of 2616	2100	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	34
PID 2100 wrote to memory of 2432	2100	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	36
PID 2100 wrote to memory of 2432	2100	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	36
PID 2100 wrote to memory of 2432	2100	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	36
PID 2100 wrote to memory of 1256	2100	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	38
PID 2100 wrote to memory of 1256	2100	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	38
PID 2100 wrote to memory of 1256	2100	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	38
PID 2100 wrote to memory of 1404	2100	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	40
PID 2100 wrote to memory of 1404	2100	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	40
PID 2100 wrote to memory of 1404	2100	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	40
PID 856 wrote to memory of 1336	856	taskeng.exe	43
PID 856 wrote to memory of 1336	856	taskeng.exe	43
PID 856 wrote to memory of 1336	856	taskeng.exe	43
PID 856 wrote to memory of 1680	856	taskeng.exe	45
PID 856 wrote to memory of 1680	856	taskeng.exe	45
PID 856 wrote to memory of 1680	856	taskeng.exe	45

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\5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe
"C:\Users\Admin\AppData\Local\Temp\5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe"
1⤵
- Modifies system certificate store
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2864
- 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\5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2616
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2432
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /sc minute /mo 1 /rl highest /tn "5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N" /tr "C:\ProgramData\5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1256
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N" /tr "C:\Users\Admin\AppData\Roaming\5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1404

C:\Windows\system32\taskeng.exe
taskeng.exe {9B9E32A4-BEB4-4276-87D5-D72D95603EB3} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:856
- C:\Users\Admin\AppData\Roaming\5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe
  C:\Users\Admin\AppData\Roaming\5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1336
- C:\Users\Admin\AppData\Roaming\5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe
  C:\Users\Admin\AppData\Roaming\5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1680

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

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe

Filesize
49KB

MD5
4e5ba87d709a29a1d916192cf460de70

SHA1
79acd66d658dcb635d994fb8c135455abc0f69f8

SHA256
5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09

SHA512
88a41839d9933b495be4e1da46b05d7cb20d8207b2ed615af1f8a88a2c005e0094ff1ad5fbd81191ee8f191b2e432b0b457d3d8107d9f347bd06e59a339da353

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

Filesize
7KB

MD5
de458e9ecda1479affd370fc1a96f5c0

SHA1
20fa066da74b20e375bba977612f400a856bd2c4

SHA256
4416ac708269295da917dd7161d75baf7c853a815ac59015176440e9c3b09afe

SHA512
5c3b6d670cf1ba1a9c7261880fa2844a58e609df6f85d5240dcaef78aad841b9a7b0a2c06a41b58f32f73acd9a7fae5516866546ffbe5e0cdb19e42a1d75265e

Download Submit
memory/1336-31-0x0000000000960000-0x0000000000972000-memory.dmp

Filesize
72KB

Download
memory/1680-33-0x0000000000FC0000-0x0000000000FD2000-memory.dmp

Filesize
72KB

Download
memory/2100-25-0x000007FEF5F03000-0x000007FEF5F04000-memory.dmp

Filesize
4KB

Download
memory/2100-1-0x00000000013B0000-0x00000000013C2000-memory.dmp

Filesize
72KB

Download
memory/2100-2-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

Filesize
9.9MB

Download
memory/2100-26-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

Filesize
9.9MB

Download
memory/2100-0-0x000007FEF5F03000-0x000007FEF5F04000-memory.dmp

Filesize
4KB

Download
memory/2100-24-0x0000000000600000-0x000000000060E000-memory.dmp

Filesize
56KB

Download
memory/2616-15-0x000000001B630000-0x000000001B912000-memory.dmp

Filesize
2.9MB

Download
memory/2616-16-0x00000000028E0000-0x00000000028E8000-memory.dmp

Filesize
32KB

Download
memory/2864-9-0x0000000001F00000-0x0000000001F08000-memory.dmp

Filesize
32KB

Download
memory/2864-8-0x000000001B590000-0x000000001B872000-memory.dmp

Filesize
2.9MB

Download
memory/2864-7-0x00000000028D0000-0x0000000002950000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads