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
behavioral2/memory/3616-45-0x000000001B0A0000-0x000000001B0AE000-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
1836	powershell.exe
2392	powershell.exe
1920	powershell.exe

Checks computer location settings 2 TTPs 1 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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe

Executes dropped EXE 1 IoCs

pid	Process
2844	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
2	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 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
1688	schtasks.exe
736	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1836	powershell.exe
1836	powershell.exe
2392	powershell.exe
2392	powershell.exe
1920	powershell.exe
1920	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3616	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe
Token: SeDebugPrivilege	1836	powershell.exe
Token: SeDebugPrivilege	2392	powershell.exe
Token: SeDebugPrivilege	1920	powershell.exe
Token: SeDebugPrivilege	2844	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3616 wrote to memory of 1836	3616	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	83
PID 3616 wrote to memory of 1836	3616	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	83
PID 3616 wrote to memory of 2392	3616	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	85
PID 3616 wrote to memory of 2392	3616	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	85
PID 3616 wrote to memory of 1920	3616	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	87
PID 3616 wrote to memory of 1920	3616	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	87
PID 3616 wrote to memory of 1688	3616	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	89
PID 3616 wrote to memory of 1688	3616	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	89
PID 3616 wrote to memory of 736	3616	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	92
PID 3616 wrote to memory of 736	3616	5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe	92

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⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3616
- 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:1836
- 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:2392
- 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:1920
- 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:1688
- 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:736

C:\Users\Admin\AppData\Roaming\5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe
C:\Users\Admin\AppData\Roaming\5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09N.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2844

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

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
e448fe0d240184c6597a31d3be2ced58

SHA1
372b8d8c19246d3e38cd3ba123cc0f56070f03cd

SHA256
c660f0db85a1e7f0f68db19868979bf50bd541531babf77a701e1b1ce5e6a391

SHA512
0b7f7eae7700d32b18eee3677cb7f89b46ace717fa7e6b501d6c47d54f15dff7e12b49f5a7d36a6ffe4c16165c7d55162db4f3621db545b6af638035752beab4

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
a9451a6b9669d49bd90704dff21beb85

SHA1
5f93d2dec01a31e04fc90c28eb1c5ca62c6fff80

SHA256
b2ff191507379930b97a212f869c3774c20b274e8fc9fcc96da5c154fb0e3056

SHA512
06634cb578f6ce8d721e6306004082073fc224b91ceea37ef870df87b12b2d5f59e7d08b20b520787a1d13f3edbbb004197bf70f180f86dd7f401a5ad289ccb5

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lzhwkvwv.2nj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
49KB

MD5
4e5ba87d709a29a1d916192cf460de70

SHA1
79acd66d658dcb635d994fb8c135455abc0f69f8

SHA256
5d23561aa4fb0eea26e365b79c09c503643877fe4084647f99132c8b4a425c09

SHA512
88a41839d9933b495be4e1da46b05d7cb20d8207b2ed615af1f8a88a2c005e0094ff1ad5fbd81191ee8f191b2e432b0b457d3d8107d9f347bd06e59a339da353

Download Submit
memory/1836-5-0x00007FF8CFC10000-0x00007FF8D06D1000-memory.dmp

Filesize
10.8MB

Download
memory/1836-6-0x00007FF8CFC10000-0x00007FF8D06D1000-memory.dmp

Filesize
10.8MB

Download
memory/1836-13-0x000001F1ADED0000-0x000001F1ADEF2000-memory.dmp

Filesize
136KB

Download
memory/1836-14-0x00007FF8CFC10000-0x00007FF8D06D1000-memory.dmp

Filesize
10.8MB

Download
memory/1836-20-0x00007FF8CFC10000-0x00007FF8D06D1000-memory.dmp

Filesize
10.8MB

Download
memory/3616-4-0x00007FF8CFC10000-0x00007FF8D06D1000-memory.dmp

Filesize
10.8MB

Download
memory/3616-0-0x00007FF8CFC13000-0x00007FF8CFC15000-memory.dmp

Filesize
8KB

Download
memory/3616-3-0x00007FF8CFC13000-0x00007FF8CFC15000-memory.dmp

Filesize
8KB

Download
memory/3616-2-0x00007FF8CFC10000-0x00007FF8D06D1000-memory.dmp

Filesize
10.8MB

Download
memory/3616-1-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3616-45-0x000000001B0A0000-0x000000001B0AE000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads