xworm | a615aece52e909040876d9f88984d4a60499f2604dc181acc69aa241dd1e1ed2

General

Target

op.exe
Size

68KB
MD5

d4c021f050296c309b84059bafa41332
SHA1

f0df37f5f880969fcbba1f4f7d9ab7cdb3e596c5
SHA256

a615aece52e909040876d9f88984d4a60499f2604dc181acc69aa241dd1e1ed2
SHA512

27be42f79cbbf0c8a81c5a2decd0a393e27b0459bff9ed7b5f9b926e93da5f096efbfa6f473525db1d3269795c174506f544866a82774a4d5948bd644bb3aea7
SSDEEP

1536:LObri+HdUrMuOGw+btMvnz7W7jqwaeAdKO2mIJ/1h1:LOnxdPuTw+bavfw6QO2mIJf1

Score

10^/10

xworm rat trojan

Malware Config

Extracted

Family

xworm

Attributes

Install_directory
%AppData%
install_file
dllhost.exe
telegram
https://api.telegram.org/bot6840593734:AAGeMJswJHfSYYy4WpS8cypmpzA8wfWUYMg/sendMessage?chat_id=1330099235

Signatures

Detect Xworm Payload 6 IoCs

resource	yara_rule
behavioral1/memory/2360-1-0x0000000000190000-0x00000000001A8000-memory.dmp	family_xworm
behavioral1/files/0x000b0000000144ac-21.dat	family_xworm
behavioral1/memory/2956-23-0x0000000000300000-0x0000000000318000-memory.dmp	family_xworm
behavioral1/memory/2300-25-0x00000000012C0000-0x00000000012D8000-memory.dmp	family_xworm
behavioral1/memory/1860-27-0x0000000000070000-0x0000000000088000-memory.dmp	family_xworm
behavioral1/memory/2960-29-0x0000000000110000-0x0000000000128000-memory.dmp	family_xworm

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

Executes dropped EXE 4 IoCs

pid	Process
2956	dllhost.exe
2300	dllhost.exe
1860	dllhost.exe
2960	dllhost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
2940	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2360	op.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2360	op.exe
Token: SeDebugPrivilege	2956	dllhost.exe
Token: SeDebugPrivilege	2300	dllhost.exe
Token: SeDebugPrivilege	1860	dllhost.exe
Token: SeDebugPrivilege	2960	dllhost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2360	op.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 2940	2360	op.exe	28
PID 2360 wrote to memory of 2940	2360	op.exe	28
PID 2360 wrote to memory of 2940	2360	op.exe	28
PID 2812 wrote to memory of 2956	2812	taskeng.exe	34
PID 2812 wrote to memory of 2956	2812	taskeng.exe	34
PID 2812 wrote to memory of 2956	2812	taskeng.exe	34
PID 2812 wrote to memory of 2300	2812	taskeng.exe	35
PID 2812 wrote to memory of 2300	2812	taskeng.exe	35
PID 2812 wrote to memory of 2300	2812	taskeng.exe	35
PID 2812 wrote to memory of 1860	2812	taskeng.exe	36
PID 2812 wrote to memory of 1860	2812	taskeng.exe	36
PID 2812 wrote to memory of 1860	2812	taskeng.exe	36
PID 2812 wrote to memory of 2960	2812	taskeng.exe	37
PID 2812 wrote to memory of 2960	2812	taskeng.exe	37
PID 2812 wrote to memory of 2960	2812	taskeng.exe	37

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\op.exe
"C:\Users\Admin\AppData\Local\Temp\op.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "dllhost" /tr "C:\Users\Admin\AppData\Roaming\dllhost.exe"
  2⤵
  - Creates scheduled task(s)
  PID:2940

C:\Windows\system32\taskeng.exe
taskeng.exe {BD6B116A-040B-47F3-B83C-45ED3556D120} S-1-5-21-3627615824-4061627003-3019543961-1000:SCFGBRBT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2812
- C:\Users\Admin\AppData\Roaming\dllhost.exe
  C:\Users\Admin\AppData\Roaming\dllhost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2956
- C:\Users\Admin\AppData\Roaming\dllhost.exe
  C:\Users\Admin\AppData\Roaming\dllhost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2300
- C:\Users\Admin\AppData\Roaming\dllhost.exe
  C:\Users\Admin\AppData\Roaming\dllhost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1860
- C:\Users\Admin\AppData\Roaming\dllhost.exe
  C:\Users\Admin\AppData\Roaming\dllhost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2960

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

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\dllhost.exe

Filesize
68KB

MD5
d4c021f050296c309b84059bafa41332

SHA1
f0df37f5f880969fcbba1f4f7d9ab7cdb3e596c5

SHA256
a615aece52e909040876d9f88984d4a60499f2604dc181acc69aa241dd1e1ed2

SHA512
27be42f79cbbf0c8a81c5a2decd0a393e27b0459bff9ed7b5f9b926e93da5f096efbfa6f473525db1d3269795c174506f544866a82774a4d5948bd644bb3aea7

Download Submit
memory/1860-27-0x0000000000070000-0x0000000000088000-memory.dmp

Filesize
96KB

Download
memory/2300-25-0x00000000012C0000-0x00000000012D8000-memory.dmp

Filesize
96KB

Download
memory/2360-0-0x000007FEF5C93000-0x000007FEF5C94000-memory.dmp

Filesize
4KB

Download
memory/2360-1-0x0000000000190000-0x00000000001A8000-memory.dmp

Filesize
96KB

Download
memory/2360-3-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download
memory/2360-18-0x000007FEF5C93000-0x000007FEF5C94000-memory.dmp

Filesize
4KB

Download
memory/2360-19-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download
memory/2956-23-0x0000000000300000-0x0000000000318000-memory.dmp

Filesize
96KB

Download
memory/2960-29-0x0000000000110000-0x0000000000128000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads