vjw0rm | 7d024e7fbc39d9379d96332276f41b08670843de3803ea91b257efeadbf8f46c

General

Target

PO_CG20210302346.js
Size

742KB
MD5

4d7d2a0d4fe470f6cf2a0a9fc519a5ff
SHA1

c8364f810e6c2bef6801c4b7196882dca05decb0
SHA256

7d024e7fbc39d9379d96332276f41b08670843de3803ea91b257efeadbf8f46c
SHA512

fb3c7bb3fdec6257a8c027e54662f4ac9eb9952647201f10a5942011810d9690bf6b970718bc38038093df9f1d8ab349b3b27cf6432ce69df1e383a7074977f5

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm

Blocklisted process makes network request 17 IoCs

Processes:

wscript.exe

flow	pid	process
5	568	wscript.exe
6	568	wscript.exe
7	568	wscript.exe
9	568	wscript.exe
10	568	wscript.exe
11	568	wscript.exe
13	568	wscript.exe
14	568	wscript.exe
15	568	wscript.exe
17	568	wscript.exe
18	568	wscript.exe
19	568	wscript.exe
21	568	wscript.exe
22	568	wscript.exe
23	568	wscript.exe
25	568	wscript.exe
26	568	wscript.exe

Executes dropped EXE 1 IoCs

Processes:

MJoeuu6lp4G7m5Q.exe

pid process

788 MJoeuu6lp4G7m5Q.exe

pid	process
788	MJoeuu6lp4G7m5Q.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bXCJbnYyZT.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bXCJbnYyZT.js	wscript.exe

Loads dropped DLL 5 IoCs

Processes:

WerFault.exe

pid process

876 WerFault.exe
876 WerFault.exe
876 WerFault.exe
876 WerFault.exe
876 WerFault.exe

pid	process
876	WerFault.exe
876	WerFault.exe
876	WerFault.exe
876	WerFault.exe
876	WerFault.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\bXCJbnYyZT.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

876 788 WerFault.exe MJoeuu6lp4G7m5Q.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

WerFault.exe

pid process

876 WerFault.exe
876 WerFault.exe
876 WerFault.exe
876 WerFault.exe
876 WerFault.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WerFault.exe

description pid process

Token: SeDebugPrivilege 876 WerFault.exe

pid	pid_target	process	target process
876	788	WerFault.exe	MJoeuu6lp4G7m5Q.exe

pid	process
876	WerFault.exe
876	WerFault.exe
876	WerFault.exe
876	WerFault.exe
876	WerFault.exe

description	pid	process
Token: SeDebugPrivilege	876	WerFault.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

wscript.exeMJoeuu6lp4G7m5Q.exe

description	pid	process	target process
PID 1424 wrote to memory of 568	1424	wscript.exe	wscript.exe
PID 1424 wrote to memory of 568	1424	wscript.exe	wscript.exe
PID 1424 wrote to memory of 568	1424	wscript.exe	wscript.exe
PID 1424 wrote to memory of 788	1424	wscript.exe	MJoeuu6lp4G7m5Q.exe
PID 1424 wrote to memory of 788	1424	wscript.exe	MJoeuu6lp4G7m5Q.exe
PID 1424 wrote to memory of 788	1424	wscript.exe	MJoeuu6lp4G7m5Q.exe
PID 1424 wrote to memory of 788	1424	wscript.exe	MJoeuu6lp4G7m5Q.exe
PID 788 wrote to memory of 876	788	MJoeuu6lp4G7m5Q.exe	WerFault.exe
PID 788 wrote to memory of 876	788	MJoeuu6lp4G7m5Q.exe	WerFault.exe
PID 788 wrote to memory of 876	788	MJoeuu6lp4G7m5Q.exe	WerFault.exe
PID 788 wrote to memory of 876	788	MJoeuu6lp4G7m5Q.exe	WerFault.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\PO_CG20210302346.js
1⤵
- Suspicious use of WriteProcessMemory
PID:1424
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\bXCJbnYyZT.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:568
- C:\Users\Admin\AppData\Local\Temp\MJoeuu6lp4G7m5Q.exe
  "C:\Users\Admin\AppData\Local\Temp\MJoeuu6lp4G7m5Q.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:788
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 664
    3⤵
    - Loads dropped DLL
    - Program crash
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:876

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\MJoeuu6lp4G7m5Q.exe

MD5
81f24b219e4b7c29122243a7745e0d70

SHA1
162087ad805242265b42bb046696b39d1cd76f50

SHA256
3fa318a8ae6e6582155aa6dd984168f77a7f81b43f578c974fa3c4f5c7668da8

SHA512
315480c4d4a96c9b4c7d7bc80b96cd09ce5a5ad8a9a5edd2c435eca171a13278825d80d6c6de1d575388540ac2ef5820d1f0645221d6adc8702396a56662b5bb

Download Submit
C:\Users\Admin\AppData\Local\Temp\MJoeuu6lp4G7m5Q.exe

MD5
81f24b219e4b7c29122243a7745e0d70

SHA1
162087ad805242265b42bb046696b39d1cd76f50

SHA256
3fa318a8ae6e6582155aa6dd984168f77a7f81b43f578c974fa3c4f5c7668da8

SHA512
315480c4d4a96c9b4c7d7bc80b96cd09ce5a5ad8a9a5edd2c435eca171a13278825d80d6c6de1d575388540ac2ef5820d1f0645221d6adc8702396a56662b5bb

Download Submit
C:\Users\Admin\AppData\Roaming\bXCJbnYyZT.js

MD5
9d628656a16fa431c6290136bec8395a

SHA1
abbc3359d13f5af4bb00b12e28f903bbfc2327f3

SHA256
7f8bc9fa4c2948c50e91f6606ca0140a29d726ad9ead11eccf92d6ac13cc19c4

SHA512
38f612d1211a1b15ad2f14f0ef2a19b7b8b04520aff9ae6b43133a4a87f81182a5b625302956a8fe193f7bbb43f6a89ac75280025399a1df404d04f271adcc72

Download Submit
\Users\Admin\AppData\Local\Temp\MJoeuu6lp4G7m5Q.exe

MD5
81f24b219e4b7c29122243a7745e0d70

SHA1
162087ad805242265b42bb046696b39d1cd76f50

SHA256
3fa318a8ae6e6582155aa6dd984168f77a7f81b43f578c974fa3c4f5c7668da8

SHA512
315480c4d4a96c9b4c7d7bc80b96cd09ce5a5ad8a9a5edd2c435eca171a13278825d80d6c6de1d575388540ac2ef5820d1f0645221d6adc8702396a56662b5bb

Download Submit
\Users\Admin\AppData\Local\Temp\MJoeuu6lp4G7m5Q.exe

MD5
81f24b219e4b7c29122243a7745e0d70

SHA1
162087ad805242265b42bb046696b39d1cd76f50

SHA256
3fa318a8ae6e6582155aa6dd984168f77a7f81b43f578c974fa3c4f5c7668da8

SHA512
315480c4d4a96c9b4c7d7bc80b96cd09ce5a5ad8a9a5edd2c435eca171a13278825d80d6c6de1d575388540ac2ef5820d1f0645221d6adc8702396a56662b5bb

Download Submit
\Users\Admin\AppData\Local\Temp\MJoeuu6lp4G7m5Q.exe

MD5
81f24b219e4b7c29122243a7745e0d70

SHA1
162087ad805242265b42bb046696b39d1cd76f50

SHA256
3fa318a8ae6e6582155aa6dd984168f77a7f81b43f578c974fa3c4f5c7668da8

SHA512
315480c4d4a96c9b4c7d7bc80b96cd09ce5a5ad8a9a5edd2c435eca171a13278825d80d6c6de1d575388540ac2ef5820d1f0645221d6adc8702396a56662b5bb

Download Submit
\Users\Admin\AppData\Local\Temp\MJoeuu6lp4G7m5Q.exe

MD5
81f24b219e4b7c29122243a7745e0d70

SHA1
162087ad805242265b42bb046696b39d1cd76f50

SHA256
3fa318a8ae6e6582155aa6dd984168f77a7f81b43f578c974fa3c4f5c7668da8

SHA512
315480c4d4a96c9b4c7d7bc80b96cd09ce5a5ad8a9a5edd2c435eca171a13278825d80d6c6de1d575388540ac2ef5820d1f0645221d6adc8702396a56662b5bb

Download Submit
\Users\Admin\AppData\Local\Temp\MJoeuu6lp4G7m5Q.exe

MD5
81f24b219e4b7c29122243a7745e0d70

SHA1
162087ad805242265b42bb046696b39d1cd76f50

SHA256
3fa318a8ae6e6582155aa6dd984168f77a7f81b43f578c974fa3c4f5c7668da8

SHA512
315480c4d4a96c9b4c7d7bc80b96cd09ce5a5ad8a9a5edd2c435eca171a13278825d80d6c6de1d575388540ac2ef5820d1f0645221d6adc8702396a56662b5bb

Download Submit
memory/568-56-0x0000000000000000-mapping.dmp

Download
memory/788-63-0x0000000075D31000-0x0000000075D33000-memory.dmp

Filesize
8KB

Download
memory/788-66-0x00000000011A0000-0x00000000011F8000-memory.dmp

Filesize
352KB

Download
memory/788-65-0x00000000003D0000-0x00000000003D8000-memory.dmp

Filesize
32KB

Download
memory/788-64-0x0000000004EA0000-0x0000000004EA1000-memory.dmp

Filesize
4KB

Download
memory/788-58-0x0000000000000000-mapping.dmp

Download
memory/788-61-0x0000000001230000-0x0000000001231000-memory.dmp

Filesize
4KB

Download
memory/876-67-0x0000000000000000-mapping.dmp

Download
memory/876-73-0x0000000000420000-0x0000000000421000-memory.dmp

Filesize
4KB

Download
memory/1424-55-0x000007FEFC291000-0x000007FEFC293000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads