nworm | 5934d1da5cf45739ab3c3c01c8fe736a4aeac541b1b9601efe4d1eea6d2fcecd

General

Target

5934d1da5cf45739ab3c3c01c8fe736a4aeac541b1b9601efe4d1eea6d2fcecd.exe
Size

17KB
MD5

16ce8ee04799a1e4f531eec98418a994
SHA1

cda1ba9604872a6f462a21f6b82b2ca643b81b76
SHA256

5934d1da5cf45739ab3c3c01c8fe736a4aeac541b1b9601efe4d1eea6d2fcecd
SHA512

dcb4486d0a9fc66b0bf71083e3f79950d3f163bf74526c862dc7b8717d26829d3e04715eaa566db8ecd46cc778839efef8a9d9da090e7f90f8301869d79dc289

Score

10^/10

nworm downloader worm

Malware Config

Extracted

Family

nworm

Version

v0.3.8

C2

jtbz.ddns.net:1604

jtbz2.ddns.net:1604

Mutex

2f5c1f29

Signatures

NWorm
A TrickBot module used to propagate to vulnerable domain controllers.
worm downloader nworm
Executes dropped EXE 1 IoCs

Processes:

windows.exe

pid process

840 windows.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

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
T1053

Processes:

schtasks.exe

pid process

2764 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3944 timeout.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

5934d1da5cf45739ab3c3c01c8fe736a4aeac541b1b9601efe4d1eea6d2fcecd.exe

description pid process

Token: SeDebugPrivilege 796 5934d1da5cf45739ab3c3c01c8fe736a4aeac541b1b9601efe4d1eea6d2fcecd.exe

pid	process
840	windows.exe

pid	process
2764	schtasks.exe

pid	process
3944	timeout.exe

description	pid	process
Token: SeDebugPrivilege	796	5934d1da5cf45739ab3c3c01c8fe736a4aeac541b1b9601efe4d1eea6d2fcecd.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

5934d1da5cf45739ab3c3c01c8fe736a4aeac541b1b9601efe4d1eea6d2fcecd.execmd.exe

description	pid	process	target process
PID 796 wrote to memory of 2764	796	5934d1da5cf45739ab3c3c01c8fe736a4aeac541b1b9601efe4d1eea6d2fcecd.exe	schtasks.exe
PID 796 wrote to memory of 2764	796	5934d1da5cf45739ab3c3c01c8fe736a4aeac541b1b9601efe4d1eea6d2fcecd.exe	schtasks.exe
PID 796 wrote to memory of 1884	796	5934d1da5cf45739ab3c3c01c8fe736a4aeac541b1b9601efe4d1eea6d2fcecd.exe	cmd.exe
PID 796 wrote to memory of 1884	796	5934d1da5cf45739ab3c3c01c8fe736a4aeac541b1b9601efe4d1eea6d2fcecd.exe	cmd.exe
PID 1884 wrote to memory of 3944	1884	cmd.exe	timeout.exe
PID 1884 wrote to memory of 3944	1884	cmd.exe	timeout.exe
PID 1884 wrote to memory of 840	1884	cmd.exe	windows.exe
PID 1884 wrote to memory of 840	1884	cmd.exe	windows.exe

C:\Users\Admin\AppData\Local\Temp\5934d1da5cf45739ab3c3c01c8fe736a4aeac541b1b9601efe4d1eea6d2fcecd.exe
"C:\Users\Admin\AppData\Local\Temp\5934d1da5cf45739ab3c3c01c8fe736a4aeac541b1b9601efe4d1eea6d2fcecd.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:796

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "'windows.exe"' /tr "'C:\Users\Admin\AppData\Roaming\windows.exe"'
2⤵
- Creates scheduled task(s)
PID:2764

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpD250.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:1884

C:\Windows\system32\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:3944

C:\Users\Admin\AppData\Roaming\windows.exe
"C:\Users\Admin\AppData\Roaming\windows.exe"
3⤵
- Executes dropped EXE
PID:840

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD250.tmp.bat
MD5
417b39b756a5a03f90152fb9b7aa9a8a

SHA1
8015082cb41a3fa8a8fa965ce10d74808b54ae24

SHA256
052b9fee21d071d0f3c1807b75f7377cd730c705cef413d252ba0496779471c6

SHA512
e6dd69b7b87cd4ec9d1afee6ebb9439a9d2ae44cef5ead0245fc6a599a57706d90ef745cb2d76b01ffdf341e9865c9038d35593780f83270fe6e5f701b3984d7

Download Submit
C:\Users\Admin\AppData\Roaming\windows.exe
MD5
ccea063e8b7b5faaf0533609214097d6

SHA1
948d3a1d3bfd995e152a8ff14c607cd41cf5ff28

SHA256
9a03471db77059fadb1928c707c7c00faf036679104781adc3d45d107baaee2e

SHA512
e65929d5ba03589130c2962deff4c577be05f231002717e0c72efa01903e1bee6eb7d7c29bb7b58d8c64fd3e322cafbab74c7be5460c7724409c33775481eba9

Download Submit
C:\Users\Admin\AppData\Roaming\windows.exe
MD5
ccea063e8b7b5faaf0533609214097d6

SHA1
948d3a1d3bfd995e152a8ff14c607cd41cf5ff28

SHA256
9a03471db77059fadb1928c707c7c00faf036679104781adc3d45d107baaee2e

SHA512
e65929d5ba03589130c2962deff4c577be05f231002717e0c72efa01903e1bee6eb7d7c29bb7b58d8c64fd3e322cafbab74c7be5460c7724409c33775481eba9

Download Submit
memory/796-115-0x0000000000590000-0x000000000059A000-memory.dmp

Filesize
40KB

Download
memory/840-119-0x000000001AEB0000-0x000000001AEB2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads