xworm | 8f94583eec5aca659887cce2919cb9df83d30902b7dfd0739652b5b34a9a9834

General

Target

260e5d45c87a65a323a83299f4e506c1.exe
Size

86KB
MD5

260e5d45c87a65a323a83299f4e506c1
SHA1

1e097fababd5f0b148063c0f782ed24fb9ce2eab
SHA256

8f94583eec5aca659887cce2919cb9df83d30902b7dfd0739652b5b34a9a9834
SHA512

b2c47682b9c226b156a25be0682be0bdd6fbe300f7551886e5eb4b250534fb7635f6b6255174305ba3e74be502c1a6a867c0b4d8597ad648fab2d42536795dba
SSDEEP

1536:XMu6hjMcUsFZ59lJbtEq0d+bKR3F1rhCG60TPDhqNZyMOJKTfdV2jPbf:XMTN9ZB5E+by1rqNYMOJKRV+f

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

134.255.254.225:5058

Attributes

Install_directory
%AppData%
install_file
Windows.exe

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2280-0-0x0000000000080000-0x000000000009C000-memory.dmp	family_xworm
behavioral1/files/0x000d0000000122cb-10.dat	family_xworm
behavioral1/memory/2960-12-0x0000000000A90000-0x0000000000AAC000-memory.dmp	family_xworm
behavioral1/memory/268-17-0x0000000001310000-0x000000000132C000-memory.dmp	family_xworm

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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk	260e5d45c87a65a323a83299f4e506c1.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk	260e5d45c87a65a323a83299f4e506c1.exe

Executes dropped EXE 2 IoCs

pid	Process
2960	Windows.exe
268	Windows.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Roaming\\Windows.exe"	260e5d45c87a65a323a83299f4e506c1.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
2732	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2280	260e5d45c87a65a323a83299f4e506c1.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2280	260e5d45c87a65a323a83299f4e506c1.exe
Token: SeDebugPrivilege	2280	260e5d45c87a65a323a83299f4e506c1.exe
Token: SeDebugPrivilege	2960	Windows.exe
Token: SeDebugPrivilege	268	Windows.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2280	260e5d45c87a65a323a83299f4e506c1.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 2732	2280	260e5d45c87a65a323a83299f4e506c1.exe	28
PID 2280 wrote to memory of 2732	2280	260e5d45c87a65a323a83299f4e506c1.exe	28
PID 2280 wrote to memory of 2732	2280	260e5d45c87a65a323a83299f4e506c1.exe	28
PID 2592 wrote to memory of 2960	2592	taskeng.exe	33
PID 2592 wrote to memory of 2960	2592	taskeng.exe	33
PID 2592 wrote to memory of 2960	2592	taskeng.exe	33
PID 2592 wrote to memory of 268	2592	taskeng.exe	34
PID 2592 wrote to memory of 268	2592	taskeng.exe	34
PID 2592 wrote to memory of 268	2592	taskeng.exe	34

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\260e5d45c87a65a323a83299f4e506c1.exe
"C:\Users\Admin\AppData\Local\Temp\260e5d45c87a65a323a83299f4e506c1.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Windows" /tr "C:\Users\Admin\AppData\Roaming\Windows.exe"
  2⤵
  - Creates scheduled task(s)
  PID:2732

C:\Windows\system32\taskeng.exe
taskeng.exe {D6A39467-7F54-445E-AFDE-77DA92FC6FF2} S-1-5-21-2444714103-3190537498-3629098939-1000:DJLAPDMX\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2592
- C:\Users\Admin\AppData\Roaming\Windows.exe
  C:\Users\Admin\AppData\Roaming\Windows.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2960
- C:\Users\Admin\AppData\Roaming\Windows.exe
  C:\Users\Admin\AppData\Roaming\Windows.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:268

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

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\Windows.exe

Filesize
86KB

MD5
260e5d45c87a65a323a83299f4e506c1

SHA1
1e097fababd5f0b148063c0f782ed24fb9ce2eab

SHA256
8f94583eec5aca659887cce2919cb9df83d30902b7dfd0739652b5b34a9a9834

SHA512
b2c47682b9c226b156a25be0682be0bdd6fbe300f7551886e5eb4b250534fb7635f6b6255174305ba3e74be502c1a6a867c0b4d8597ad648fab2d42536795dba

Download Submit
memory/268-18-0x000007FEF5D70000-0x000007FEF675C000-memory.dmp

Filesize
9.9MB

Download
memory/268-17-0x0000000001310000-0x000000000132C000-memory.dmp

Filesize
112KB

Download
memory/268-19-0x000007FEF5D70000-0x000007FEF675C000-memory.dmp

Filesize
9.9MB

Download
memory/2280-0-0x0000000000080000-0x000000000009C000-memory.dmp

Filesize
112KB

Download
memory/2280-1-0x000007FEF5D70000-0x000007FEF675C000-memory.dmp

Filesize
9.9MB

Download
memory/2280-6-0x000000001A840000-0x000000001A8C0000-memory.dmp

Filesize
512KB

Download
memory/2280-7-0x000007FEF5D70000-0x000007FEF675C000-memory.dmp

Filesize
9.9MB

Download
memory/2280-8-0x000000001A840000-0x000000001A8C0000-memory.dmp

Filesize
512KB

Download
memory/2960-12-0x0000000000A90000-0x0000000000AAC000-memory.dmp

Filesize
112KB

Download
memory/2960-13-0x000007FEF5D70000-0x000007FEF675C000-memory.dmp

Filesize
9.9MB

Download
memory/2960-14-0x000007FEF5D70000-0x000007FEF675C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads