vjw0rm | 47ac55851c62e30f0553a5d32f2b6a128f532b9904fbf5e100b53895ec8a86ca

Analysis

max time kernel
163s
max time network
169s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
10-10-2023 17:33

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General

Target

47ac55851c62e30f0553a5d32f2b6a128f532b9904fbf5e100b53895ec8a86ca_JC.js
Size

453KB
MD5

811a102d237ae380b2d9517fa79f2c6d
SHA1

17ff05d6c71c7c3f27be24cfd46b9653de9f67f2
SHA256

47ac55851c62e30f0553a5d32f2b6a128f532b9904fbf5e100b53895ec8a86ca
SHA512

3fcd5e98e5dbe0fb529ca77592bc012bc8560173114dfa754d363fe621b9336485a74fa48bd8bca4f676bfc91c2dc8ad5bc69c9a3b275b02722ec4e932688680
SSDEEP

6144:N5gPKUmu6hIe4UhL60X4dOvNJ38QJfJiDzh8qQESvpWvnR4Rt1Prz2fLFh2WR:N56fmu6mUhZVJ1J8DnRvAtlf2

Score

10^/10

vjw0rm trojan worm

Malware Config

Signatures

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

Blocklisted process makes network request 16 IoCs

flow	pid	Process
22	640	wscript.exe
38	640	wscript.exe
46	640	wscript.exe
59	640	wscript.exe
67	640	wscript.exe
68	640	wscript.exe
72	640	wscript.exe
76	640	wscript.exe
81	640	wscript.exe
84	640	wscript.exe
90	640	wscript.exe
96	640	wscript.exe
99	640	wscript.exe
105	640	wscript.exe
109	640	wscript.exe
112	640	wscript.exe

Checks computer location settings 2 TTPs 1 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-1-5-21-1045988481-1457812719-2617974652-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
3160	bin.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3160 set thread context of 3172	3160	bin.exe	64
PID 3160 set thread context of 3612	3160	bin.exe	99
PID 3612 set thread context of 3172	3612	ktmutil.exe	64

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1045988481-1457812719-2617974652-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	ktmutil.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
3160	bin.exe
3160	bin.exe
3160	bin.exe
3160	bin.exe
3160	bin.exe
3160	bin.exe
3160	bin.exe
3160	bin.exe
3160	bin.exe
3160	bin.exe
3160	bin.exe
3160	bin.exe
3160	bin.exe
3160	bin.exe
3160	bin.exe
3160	bin.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3172	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
3160	bin.exe
3172	Explorer.EXE
3172	Explorer.EXE
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe
3612	ktmutil.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3172	Explorer.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3376 wrote to memory of 640	3376	wscript.exe	86
PID 3376 wrote to memory of 640	3376	wscript.exe	86
PID 3376 wrote to memory of 3160	3376	wscript.exe	87
PID 3376 wrote to memory of 3160	3376	wscript.exe	87
PID 3376 wrote to memory of 3160	3376	wscript.exe	87
PID 3172 wrote to memory of 3612	3172	Explorer.EXE	99
PID 3172 wrote to memory of 3612	3172	Explorer.EXE	99
PID 3172 wrote to memory of 3612	3172	Explorer.EXE	99
PID 3612 wrote to memory of 968	3612	ktmutil.exe	100
PID 3612 wrote to memory of 968	3612	ktmutil.exe	100
PID 3612 wrote to memory of 968	3612	ktmutil.exe	100

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: MapViewOfSection
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3172
- C:\Windows\system32\wscript.exe
  wscript.exe C:\Users\Admin\AppData\Local\Temp\47ac55851c62e30f0553a5d32f2b6a128f532b9904fbf5e100b53895ec8a86ca_JC.js
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:3376
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\ECqEVMhpHV.js"
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    PID:640
- - C:\Users\Admin\AppData\Roaming\bin.exe
    "C:\Users\Admin\AppData\Roaming\bin.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    PID:3160
- C:\Windows\SysWOW64\ktmutil.exe
  "C:\Windows\SysWOW64\ktmutil.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:3612
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:968

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\ECqEVMhpHV.js

Filesize
7KB

MD5
d7f1bd09dc54cdb298d18b01c350daad

SHA1
14389215c04486782b191d7e717604d47b4855f5

SHA256
1d15ca695084184b5e58a8ea3776bb5c8d2972c1d22d8ba0ded53b00bae8807b

SHA512
4fc09bf5626f1ce47a6b66b64bf9c3f22545ce481161f9b2c5e9fdc302d4d5b3e7acfd549bb24ec1405e4d93b3727abd301d957f32d44ed8d6d5cb3af7f8d976

Download Submit
C:\Users\Admin\AppData\Roaming\bin.exe

Filesize
244KB

MD5
191c89bfc7613125182be0c6f7dc0828

SHA1
1f856de98621182f9885f5ceb5017806a48a19f6

SHA256
0b5a9848fa4433d737febc05dafaa4f8db69d2605c8014a616fac6c4abc69c53

SHA512
a1d22bfe1716682d00ae6dce97d2da37c33fcfc40a10da745f23abd837042e0016e651cabd9e12979dd2a0eb055c7f41c0d7ad8bafefb07e8203d3d4ef1f6550

Download Submit
C:\Users\Admin\AppData\Roaming\bin.exe

Filesize
244KB

MD5
191c89bfc7613125182be0c6f7dc0828

SHA1
1f856de98621182f9885f5ceb5017806a48a19f6

SHA256
0b5a9848fa4433d737febc05dafaa4f8db69d2605c8014a616fac6c4abc69c53

SHA512
a1d22bfe1716682d00ae6dce97d2da37c33fcfc40a10da745f23abd837042e0016e651cabd9e12979dd2a0eb055c7f41c0d7ad8bafefb07e8203d3d4ef1f6550

Download Submit
C:\Users\Admin\AppData\Roaming\bin.exe

Filesize
244KB

MD5
191c89bfc7613125182be0c6f7dc0828

SHA1
1f856de98621182f9885f5ceb5017806a48a19f6

SHA256
0b5a9848fa4433d737febc05dafaa4f8db69d2605c8014a616fac6c4abc69c53

SHA512
a1d22bfe1716682d00ae6dce97d2da37c33fcfc40a10da745f23abd837042e0016e651cabd9e12979dd2a0eb055c7f41c0d7ad8bafefb07e8203d3d4ef1f6550

Download Submit
memory/3160-13-0x0000000001B10000-0x0000000001E5A000-memory.dmp

Filesize
3.3MB

Download
memory/3160-12-0x0000000000D90000-0x0000000000DCD000-memory.dmp

Filesize
244KB

Download
memory/3160-19-0x0000000000D90000-0x0000000000DCD000-memory.dmp

Filesize
244KB

Download
memory/3160-14-0x0000000000D90000-0x0000000000DCD000-memory.dmp

Filesize
244KB

Download
memory/3160-15-0x0000000000D90000-0x0000000000DCD000-memory.dmp

Filesize
244KB

Download
memory/3160-16-0x0000000001670000-0x000000000168B000-memory.dmp

Filesize
108KB

Download
memory/3160-11-0x0000000000D90000-0x0000000000DCD000-memory.dmp

Filesize
244KB

Download
memory/3160-22-0x0000000001670000-0x000000000168B000-memory.dmp

Filesize
108KB

Download
memory/3160-21-0x0000000000D90000-0x0000000000DCD000-memory.dmp

Filesize
244KB

Download
memory/3172-25-0x000000000AAE0000-0x000000000ADCD000-memory.dmp

Filesize
2.9MB

Download
memory/3172-17-0x000000000AAE0000-0x000000000ADCD000-memory.dmp

Filesize
2.9MB

Download
memory/3172-27-0x0000000003010000-0x00000000030D3000-memory.dmp

Filesize
780KB

Download
memory/3172-28-0x0000000003010000-0x00000000030D3000-memory.dmp

Filesize
780KB

Download
memory/3172-32-0x0000000003010000-0x00000000030D3000-memory.dmp

Filesize
780KB

Download
memory/3612-20-0x0000000000D60000-0x0000000000D9A000-memory.dmp

Filesize
232KB

Download
memory/3612-18-0x0000000000D60000-0x0000000000D9A000-memory.dmp

Filesize
232KB

Download
memory/3612-23-0x0000000001750000-0x0000000001A9A000-memory.dmp

Filesize
3.3MB

Download
memory/3612-24-0x0000000000D60000-0x0000000000D9A000-memory.dmp

Filesize
232KB

Download
memory/3612-26-0x0000000001500000-0x000000000159A000-memory.dmp

Filesize
616KB

Download
memory/3612-29-0x0000000000D60000-0x0000000000D9A000-memory.dmp

Filesize
232KB

Download
memory/3612-30-0x0000000001500000-0x000000000159A000-memory.dmp

Filesize
616KB

Download