xworm | 3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5

General

Target

3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe
Size

114KB
MD5

e20b663922380d2a79b01883ba62e890
SHA1

dd1a149b68a295548c0de33122efe0b04a202fd6
SHA256

3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5
SHA512

187a06c21aa6f532ef6e1a46141d95a1aded62b3b9908789c85b57038e07357e64a92642f7ff25e7ea27bb00ab75f1756f8b68d1eb094cdbbe8f6f8b721bcac5
SSDEEP

1536:JjYYfOtuaA3+pfbrp+ZY9QQK676lJOqVChiH0hLP+VVVVVVVVVVVVVVVVVVVVVVf:B0uaA3+pfbrpfOZfOqVbH0hLN0

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:10967

22.ip.gl.ply.gg:10967

Attributes

Install_directory
%Userprofile%
install_file
dllhso.exe

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2236-1-0x00000000012A0000-0x00000000012C2000-memory.dmp	family_xworm
behavioral1/files/0x000b000000018683-31.dat	family_xworm
behavioral1/memory/1684-33-0x0000000000B10000-0x0000000000B32000-memory.dmp	family_xworm
behavioral1/memory/2200-35-0x00000000010E0000-0x0000000001102000-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
2164	powershell.exe
2808	powershell.exe
2744	powershell.exe
2984	powershell.exe

Executes dropped EXE 2 IoCs

pid	Process
1684	dllhso.exe
2200	dllhso.exe

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
2696	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2164	powershell.exe
2808	powershell.exe
2744	powershell.exe
2984	powershell.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2236	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe
Token: SeDebugPrivilege	2164	powershell.exe
Token: SeDebugPrivilege	2808	powershell.exe
Token: SeDebugPrivilege	2744	powershell.exe
Token: SeDebugPrivilege	2984	powershell.exe
Token: SeDebugPrivilege	2236	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe
Token: SeDebugPrivilege	1684	dllhso.exe
Token: SeDebugPrivilege	2200	dllhso.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2164	2236	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	30
PID 2236 wrote to memory of 2164	2236	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	30
PID 2236 wrote to memory of 2164	2236	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	30
PID 2236 wrote to memory of 2808	2236	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	32
PID 2236 wrote to memory of 2808	2236	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	32
PID 2236 wrote to memory of 2808	2236	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	32
PID 2236 wrote to memory of 2744	2236	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	35
PID 2236 wrote to memory of 2744	2236	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	35
PID 2236 wrote to memory of 2744	2236	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	35
PID 2236 wrote to memory of 2984	2236	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	37
PID 2236 wrote to memory of 2984	2236	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	37
PID 2236 wrote to memory of 2984	2236	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	37
PID 2236 wrote to memory of 2696	2236	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	39
PID 2236 wrote to memory of 2696	2236	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	39
PID 2236 wrote to memory of 2696	2236	3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe	39
PID 840 wrote to memory of 1684	840	taskeng.exe	42
PID 840 wrote to memory of 1684	840	taskeng.exe	42
PID 840 wrote to memory of 1684	840	taskeng.exe	42
PID 840 wrote to memory of 2200	840	taskeng.exe	43
PID 840 wrote to memory of 2200	840	taskeng.exe	43
PID 840 wrote to memory of 2200	840	taskeng.exe	43

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\3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe
"C:\Users\Admin\AppData\Local\Temp\3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2236
- 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\3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2164
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - 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\dllhso.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2744
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'dllhso.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2984
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "dllhso" /tr "C:\Users\Admin\dllhso.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2696

C:\Windows\system32\taskeng.exe
taskeng.exe {A8DA9D21-9213-47EC-9A15-F0F8F35BE688} S-1-5-21-2872745919-2748461613-2989606286-1000:CCJBVTGQ\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:840
- C:\Users\Admin\dllhso.exe
  C:\Users\Admin\dllhso.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1684
- C:\Users\Admin\dllhso.exe
  C:\Users\Admin\dllhso.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2200

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

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
86b114f415aaafafc785527414fd2236

SHA1
694b0dcd67aac945696cf5dbbb57c4ff9418dca5

SHA256
1907089176af772dee0fe2d892f76c905bb9220eb81fb8db550310e4ba8bf5ea

SHA512
8390457905dc6b70d79a12ee06e3f8baf554bb41dfa9d81a5a6944a21f3b2e3f0f03e6a56be67138e994850fc6f99b5433003fffb88077d72489541243500036

Download Submit
C:\Users\Admin\dllhso.exe

Filesize
114KB

MD5
e20b663922380d2a79b01883ba62e890

SHA1
dd1a149b68a295548c0de33122efe0b04a202fd6

SHA256
3d25fe2989b3b9505c5b45751d1da232fe3715bff54c6900d82b99e7ad76e6c5

SHA512
187a06c21aa6f532ef6e1a46141d95a1aded62b3b9908789c85b57038e07357e64a92642f7ff25e7ea27bb00ab75f1756f8b68d1eb094cdbbe8f6f8b721bcac5

Download Submit
memory/1684-33-0x0000000000B10000-0x0000000000B32000-memory.dmp

Filesize
136KB

Download
memory/2164-6-0x0000000002940000-0x00000000029C0000-memory.dmp

Filesize
512KB

Download
memory/2164-7-0x000000001B530000-0x000000001B812000-memory.dmp

Filesize
2.9MB

Download
memory/2164-8-0x0000000002860000-0x0000000002868000-memory.dmp

Filesize
32KB

Download
memory/2200-35-0x00000000010E0000-0x0000000001102000-memory.dmp

Filesize
136KB

Download
memory/2236-28-0x000007FEF5493000-0x000007FEF5494000-memory.dmp

Filesize
4KB

Download
memory/2236-27-0x000000001AE60000-0x000000001AEE0000-memory.dmp

Filesize
512KB

Download
memory/2236-0-0x000007FEF5493000-0x000007FEF5494000-memory.dmp

Filesize
4KB

Download
memory/2236-29-0x000000001AE60000-0x000000001AEE0000-memory.dmp

Filesize
512KB

Download
memory/2236-1-0x00000000012A0000-0x00000000012C2000-memory.dmp

Filesize
136KB

Download
memory/2808-15-0x0000000001E80000-0x0000000001E88000-memory.dmp

Filesize
32KB

Download
memory/2808-14-0x000000001B720000-0x000000001BA02000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads