vjw0rm | 9005a39c203e068daa077fe244e2608d36852dbef6f6ce8b28cc5cc015b89b1b

General

Target

98e3648add4ab0724ebeb54eb720e8ad97ad52b0.js
Size

378KB
MD5

484e1f6925d5957e9d486e420dc010b7
SHA1

98e3648add4ab0724ebeb54eb720e8ad97ad52b0
SHA256

9005a39c203e068daa077fe244e2608d36852dbef6f6ce8b28cc5cc015b89b1b
SHA512

5b32912e30b446357ce6fe626b8136ae3262cdf4c60b7bc56b16171156a8979001a1a52168c0fe34b2b7526379b4519b7b04c86e17e18f40a62b7361acb0617c
SSDEEP

6144:6V0EJTElOz43XdvK4tHOh6WfkHi4FjqWkQ2M4MMPpsiscuzAOgied24iD+:cJMW43NsZghqekPpNqAOgBd7iD+

Score

10^/10

vjw0rm spyware stealer trojan worm

Malware Config

Signatures

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

Blocklisted process makes network request 15 IoCs

flow	pid	Process
11	4648	wscript.exe
13	4648	wscript.exe
16	4648	wscript.exe
26	4648	wscript.exe
32	4648	wscript.exe
49	4648	wscript.exe
51	4648	wscript.exe
53	4648	wscript.exe
59	4648	wscript.exe
60	4648	wscript.exe
64	4648	wscript.exe
69	4648	wscript.exe
75	4648	wscript.exe
79	4648	wscript.exe
82	4648	wscript.exe

Executes dropped EXE 1 IoCs

pid	Process
4968	bin.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	bin.exe

Drops startup file 2 IoCs

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

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4968 set thread context of 2824	4968	bin.exe	36
PID 4296 set thread context of 2824	4296	rundll32.exe	36

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

pid	pid_target	Process	procid_target
1956	1624	WerFault.exe	89

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	rundll32.exe

Suspicious behavior: EnumeratesProcesses 46 IoCs

pid	Process
4968	bin.exe
4968	bin.exe
4968	bin.exe
4968	bin.exe
4968	bin.exe
4968	bin.exe
4968	bin.exe
4968	bin.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2824	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
4968	bin.exe
4968	bin.exe
4968	bin.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4968	bin.exe
Token: SeDebugPrivilege	4296	rundll32.exe
Token: SeShutdownPrivilege	2824	Explorer.EXE
Token: SeCreatePagefilePrivilege	2824	Explorer.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4512 wrote to memory of 4648	4512	wscript.exe	78
PID 4512 wrote to memory of 4648	4512	wscript.exe	78
PID 4512 wrote to memory of 4968	4512	wscript.exe	79
PID 4512 wrote to memory of 4968	4512	wscript.exe	79
PID 4512 wrote to memory of 4968	4512	wscript.exe	79
PID 2824 wrote to memory of 4296	2824	Explorer.EXE	82
PID 2824 wrote to memory of 4296	2824	Explorer.EXE	82
PID 2824 wrote to memory of 4296	2824	Explorer.EXE	82
PID 4296 wrote to memory of 1624	4296	rundll32.exe	89
PID 4296 wrote to memory of 1624	4296	rundll32.exe	89
PID 4296 wrote to memory of 1624	4296	rundll32.exe	89

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2824
- C:\Windows\system32\wscript.exe
  wscript.exe C:\Users\Admin\AppData\Local\Temp\98e3648add4ab0724ebeb54eb720e8ad97ad52b0.js
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:4512
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\TzTlSUHDie.js"
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    PID:4648
- - C:\Users\Admin\AppData\Local\Temp\bin.exe
    "C:\Users\Admin\AppData\Local\Temp\bin.exe"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4968
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4296
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1624
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1624 -s 136
      4⤵
      Program crash
      PID:1956

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 440 -p 1624 -ip 1624
1⤵
PID:1836

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
185KB

MD5
f9fdfca55156f35ea48a17947d091f4d

SHA1
15f10040cf10535deed5ca028150ed847a585d01

SHA256
7258963be005d6914901a62c591c56427553f62537f86d70965af16dae57c0d0

SHA512
53caa12467706839406c40e8e8a925a67f8c51ddc6abb0bf7db8ca61e03af09714cc954e959c89dae91fb45c07fc113a076e0ab34806933ca7deed520113c302

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

Filesize
185KB

MD5
f9fdfca55156f35ea48a17947d091f4d

SHA1
15f10040cf10535deed5ca028150ed847a585d01

SHA256
7258963be005d6914901a62c591c56427553f62537f86d70965af16dae57c0d0

SHA512
53caa12467706839406c40e8e8a925a67f8c51ddc6abb0bf7db8ca61e03af09714cc954e959c89dae91fb45c07fc113a076e0ab34806933ca7deed520113c302

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

Filesize
18KB

MD5
90c052e2282de1c12470fc54d62681d9

SHA1
ea069b254dde1f6cad46afedf55c69d4516a0d7a

SHA256
be62476863ca538e76f33e4758a5a5af8609d681026c4e325d8d667470aa9097

SHA512
73661062644236fcd76f689a8271f5f2c875468fbfdd4a4431a2b419c8bc093129345ee9b83d4f87eaa389a1ff12e776ba5d0d5845899931e1b72c32d4cb5ea7

Download Submit
memory/2824-140-0x0000000003290000-0x00000000033A9000-memory.dmp

Filesize
1.1MB

Download
memory/2824-149-0x0000000008550000-0x0000000008652000-memory.dmp

Filesize
1.0MB

Download
memory/2824-147-0x0000000008550000-0x0000000008652000-memory.dmp

Filesize
1.0MB

Download
memory/4296-145-0x0000000003150000-0x000000000349A000-memory.dmp

Filesize
3.3MB

Download
memory/4296-148-0x00000000012A0000-0x00000000012CD000-memory.dmp

Filesize
180KB

Download
memory/4296-146-0x0000000002FE0000-0x000000000306F000-memory.dmp

Filesize
572KB

Download
memory/4296-143-0x00000000007D0000-0x00000000007E4000-memory.dmp

Filesize
80KB

Download
memory/4296-144-0x00000000012A0000-0x00000000012CD000-memory.dmp

Filesize
180KB

Download
memory/4968-139-0x0000000000B90000-0x0000000000BA0000-memory.dmp

Filesize
64KB

Download
memory/4968-142-0x0000000000CD0000-0x0000000000CFF000-memory.dmp

Filesize
188KB

Download
memory/4968-138-0x00000000012E0000-0x000000000162A000-memory.dmp

Filesize
3.3MB

Download
memory/4968-137-0x0000000000CD0000-0x0000000000CFF000-memory.dmp

Filesize
188KB

Download

Analysis

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