xworm | c2a299f988158d07a573a21621b00b1577b7c232f91c1442ba30d272e4414c5d

General

Target

new.exe
Size

75KB
MD5

4c2a997fa2661fbfe14db1233b16364c
SHA1

e48025dbd61de286e13b25b144bf4da5da62761a
SHA256

c2a299f988158d07a573a21621b00b1577b7c232f91c1442ba30d272e4414c5d
SHA512

529a26f4769c7be0986e16d8e0bf37632b7b723a3e8d9fa8bb3f9cc4d766bd4d24a802d6aa43fe4df85c23cd680b0188c7e1eaff443a30203b298ba916aa0a57
SSDEEP

1536:pnqs5zV1jXp4csu1Pzs+AJKZbDjlnOl4KpqC3DOjFt/zN:Bn5nZJ/ZbnsWKpf3DOjHN

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

C2

needforrat.hopto.org:7000

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2688-1-0x0000000000E20000-0x0000000000E3A000-memory.dmp	family_xworm
behavioral1/files/0x000c00000001225f-8.dat	family_xworm
behavioral1/memory/2668-17-0x0000000000330000-0x000000000034A000-memory.dmp	family_xworm
behavioral1/memory/1772-19-0x00000000002A0000-0x00000000002BA000-memory.dmp	family_xworm

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

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
2668	new.exe
1772	new.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\new = "C:\\Users\\Admin\\AppData\\Roaming\\new.exe"	new.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
2152	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2688	new.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2688	new.exe
Token: SeDebugPrivilege	2688	new.exe
Token: SeDebugPrivilege	2668	new.exe
Token: SeDebugPrivilege	1772	new.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2688	new.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2152	2688	new.exe	30
PID 2688 wrote to memory of 2152	2688	new.exe	30
PID 2688 wrote to memory of 2152	2688	new.exe	30
PID 2812 wrote to memory of 2668	2812	taskeng.exe	34
PID 2812 wrote to memory of 2668	2812	taskeng.exe	34
PID 2812 wrote to memory of 2668	2812	taskeng.exe	34
PID 2812 wrote to memory of 1772	2812	taskeng.exe	35
PID 2812 wrote to memory of 1772	2812	taskeng.exe	35
PID 2812 wrote to memory of 1772	2812	taskeng.exe	35

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\new.exe
"C:\Users\Admin\AppData\Local\Temp\new.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:2688
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "new" /tr "C:\Users\Admin\AppData\Roaming\new.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2152

C:\Windows\system32\taskeng.exe
taskeng.exe {F667B0C8-BF8D-41D9-BA77-1BE0E268ADCE} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2812
- C:\Users\Admin\AppData\Roaming\new.exe
  C:\Users\Admin\AppData\Roaming\new.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2668
- C:\Users\Admin\AppData\Roaming\new.exe
  C:\Users\Admin\AppData\Roaming\new.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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\new.exe

Filesize
75KB

MD5
4c2a997fa2661fbfe14db1233b16364c

SHA1
e48025dbd61de286e13b25b144bf4da5da62761a

SHA256
c2a299f988158d07a573a21621b00b1577b7c232f91c1442ba30d272e4414c5d

SHA512
529a26f4769c7be0986e16d8e0bf37632b7b723a3e8d9fa8bb3f9cc4d766bd4d24a802d6aa43fe4df85c23cd680b0188c7e1eaff443a30203b298ba916aa0a57

Download Submit
memory/1772-19-0x00000000002A0000-0x00000000002BA000-memory.dmp

Filesize
104KB

Download
memory/2668-17-0x0000000000330000-0x000000000034A000-memory.dmp

Filesize
104KB

Download
memory/2688-0-0x000007FEF57B3000-0x000007FEF57B4000-memory.dmp

Filesize
4KB

Download
memory/2688-1-0x0000000000E20000-0x0000000000E3A000-memory.dmp

Filesize
104KB

Download
memory/2688-10-0x000007FEF57B0000-0x000007FEF619C000-memory.dmp

Filesize
9.9MB

Download
memory/2688-11-0x000007FEF57B3000-0x000007FEF57B4000-memory.dmp

Filesize
4KB

Download
memory/2688-12-0x000007FEF57B0000-0x000007FEF619C000-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