xworm | 11b78f00904b9490b7249e720c6438289d667e19785dfd0495f85603f1fbfaac

General

Target

svchost (1).exe
Size

82KB
MD5

ada1fa7e34fa69a5cd24dc1d1b3debae
SHA1

7296af10c7d488e99a4ac9baa7320a8a6fee4ad9
SHA256

11b78f00904b9490b7249e720c6438289d667e19785dfd0495f85603f1fbfaac
SHA512

323b57f769ca8796e14b64a0692b97ff202f31eccf013c42606e4a678cdf32ebedfaef875e8141faba2f1ce65e34317f82f2085f8954dab865a2f6e6503f5923
SSDEEP

1536:LY8aA1uBsDOS2Cxu1fsLtMnveTFVwKbkezlfCRYSX68i+xDO5j+n2h2PiU:MQ1uRS2CxsIVMKbkezVWhhieO5j+2GR

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

147.185.221.22:7689

127.0.0.1:7689

Attributes

Install_directory
%Temp%
install_file
svchost.exe
telegram
https://api.telegram.org/bot7460424057:AAFqb7sl9YoUjtnfCXABy_ETYSrIdrvDNo8/sendMessage?chat_id=7309152263

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/memory/2648-1-0x0000000000460000-0x000000000047A000-memory.dmp	family_xworm
behavioral1/files/0x000d0000000233e1-55.dat	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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
4464	powershell.exe
1628	powershell.exe
4084	powershell.exe
4768	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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	svchost (1).exe

Executes dropped EXE 2 IoCs

pid	Process
2708	svchost.exe
3800	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
9	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
3608	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4464	powershell.exe
4464	powershell.exe
1628	powershell.exe
1628	powershell.exe
4084	powershell.exe
4084	powershell.exe
4768	powershell.exe
4768	powershell.exe
2648	svchost (1).exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2648	svchost (1).exe
Token: SeDebugPrivilege	4464	powershell.exe
Token: SeDebugPrivilege	1628	powershell.exe
Token: SeDebugPrivilege	4084	powershell.exe
Token: SeDebugPrivilege	4768	powershell.exe
Token: SeDebugPrivilege	2648	svchost (1).exe
Token: SeDebugPrivilege	2708	svchost.exe
Token: SeDebugPrivilege	3800	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2648	svchost (1).exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 4464	2648	svchost (1).exe	91
PID 2648 wrote to memory of 4464	2648	svchost (1).exe	91
PID 2648 wrote to memory of 1628	2648	svchost (1).exe	93
PID 2648 wrote to memory of 1628	2648	svchost (1).exe	93
PID 2648 wrote to memory of 4084	2648	svchost (1).exe	95
PID 2648 wrote to memory of 4084	2648	svchost (1).exe	95
PID 2648 wrote to memory of 4768	2648	svchost (1).exe	97
PID 2648 wrote to memory of 4768	2648	svchost (1).exe	97
PID 2648 wrote to memory of 3608	2648	svchost (1).exe	100
PID 2648 wrote to memory of 3608	2648	svchost (1).exe	100

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\svchost (1).exe
"C:\Users\Admin\AppData\Local\Temp\svchost (1).exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2648
- 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\svchost (1).exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4464
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost (1).exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1628
- 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\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4084
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4768
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3608

C:\Users\Admin\AppData\Local\Temp\svchost.exe
C:\Users\Admin\AppData\Local\Temp\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2708

C:\Users\Admin\AppData\Local\Temp\svchost.exe
C:\Users\Admin\AppData\Local\Temp\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3800

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

Replay Monitor

Loading Replay Monitor...

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\CLR_v4.0\UsageLogs\svchost.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

Filesize
944B

MD5
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
944B

MD5
a7cc007980e419d553568a106210549a

SHA1
c03099706b75071f36c3962fcc60a22f197711e0

SHA256
a5735921fc72189c8bf577f3911486cf031708dc8d6bc764fe3e593c0a053165

SHA512
b9aaf29403c467daef80a1ae87478afc33b78f4e1ca16189557011bb83cf9b3e29a0f85c69fa209c45201fb28baca47d31756eee07b79c6312c506e8370f7666

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

Filesize
944B

MD5
359d1e37a264703c99ebd01eed362de5

SHA1
a1122c8bf9848b3371cd191ba540864204d1d845

SHA256
5781f3046b0d978469415a059cf5ceae0e532869e69ab1dffb8ed878bd299b07

SHA512
ce3caa1d2205be8167b7cd48ebf538a9ce8c148643c26a20377894aa15cf00f90b2b5e2ebf35d40a0273c088abc11fe6f010e34691d7fbc4bef8d7e482f5087d

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_z2o4vaw1.d3s.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
82KB

MD5
ada1fa7e34fa69a5cd24dc1d1b3debae

SHA1
7296af10c7d488e99a4ac9baa7320a8a6fee4ad9

SHA256
11b78f00904b9490b7249e720c6438289d667e19785dfd0495f85603f1fbfaac

SHA512
323b57f769ca8796e14b64a0692b97ff202f31eccf013c42606e4a678cdf32ebedfaef875e8141faba2f1ce65e34317f82f2085f8954dab865a2f6e6503f5923

Download Submit
memory/2648-53-0x00007FF960203000-0x00007FF960205000-memory.dmp

Filesize
8KB

Download
memory/2648-0-0x00007FF960203000-0x00007FF960205000-memory.dmp

Filesize
8KB

Download
memory/2648-54-0x00007FF960200000-0x00007FF960CC1000-memory.dmp

Filesize
10.8MB

Download
memory/2648-2-0x00007FF960200000-0x00007FF960CC1000-memory.dmp

Filesize
10.8MB

Download
memory/2648-1-0x0000000000460000-0x000000000047A000-memory.dmp

Filesize
104KB

Download
memory/4464-17-0x00007FF960200000-0x00007FF960CC1000-memory.dmp

Filesize
10.8MB

Download
memory/4464-14-0x00007FF960200000-0x00007FF960CC1000-memory.dmp

Filesize
10.8MB

Download
memory/4464-4-0x000001E0ACD10000-0x000001E0ACD32000-memory.dmp

Filesize
136KB

Download
memory/4464-3-0x00007FF960200000-0x00007FF960CC1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads