vjw0rm | 5ec545f3cccb7dddd12196320fb5144f131818170d87000cdca10fe9fb0353d4

General

Target

af85d8109ff251f1db6191b46ef8c66f.js
Size

191KB
MD5

af85d8109ff251f1db6191b46ef8c66f
SHA1

b1f6c58407bd70c4819db5eecfbc2cdcb5af77e3
SHA256

5ec545f3cccb7dddd12196320fb5144f131818170d87000cdca10fe9fb0353d4
SHA512

1a7bf9da69cd189c15d33c0a7114670c0a0c5b76cf6f8cece60c33cac7b32cb7d22d13a989d19f61eebead584429d3ed9afdd8a222959b24ee31abc62353d48d
SSDEEP

3072:yWt8ruabx2MftvMQDvolUJSKqvCVfKzJme6TB+ZhUzzv9EZAUycwqeHZzL:yWt8ruEjMV3KqsaB+B+MzFpeSzL

Score

10^/10

vjw0rm discovery persistence trojan worm

Malware Config

Signatures

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

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-1-5-21-2727153400-192325109-1870347593-1000\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\tKaUarDZDG.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tKaUarDZDG.js	WScript.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3600	icacls.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-1-5-21-2727153400-192325109-1870347593-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\B02N3ZE1UL = "\"C:\\Users\\Admin\\AppData\\Roaming\\tKaUarDZDG.js\""	WScript.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2727153400-192325109-1870347593-1000_Classes\Local Settings	wscript.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4524 wrote to memory of 4752	4524	wscript.exe	86
PID 4524 wrote to memory of 4752	4524	wscript.exe	86
PID 4524 wrote to memory of 2072	4524	wscript.exe	87
PID 4524 wrote to memory of 2072	4524	wscript.exe	87
PID 2072 wrote to memory of 3600	2072	javaw.exe	90
PID 2072 wrote to memory of 3600	2072	javaw.exe	90
PID 2072 wrote to memory of 1288	2072	javaw.exe	95
PID 2072 wrote to memory of 1288	2072	javaw.exe	95

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\af85d8109ff251f1db6191b46ef8c66f.js
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4524
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\tKaUarDZDG.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:4752
- C:\Program Files\Java\jre-1.8\bin\javaw.exe
  "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\ajbycxarzb.txt"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2072
- - C:\Windows\system32\icacls.exe
    C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
    3⤵
    - Modifies file permissions
    PID:3600
- - C:\Program Files\Java\jre-1.8\bin\java.exe
    "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\ajbycxarzb.txt"
    3⤵
    PID:1288

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

File and Directory Permissions Modification

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

Filesize
46B

MD5
867850ddb78213b53afb8e96709a2354

SHA1
2a182d7acb05fe867558a35db5b451875bee46dc

SHA256
6252fc628c265e5941b54400ae23fbd8d4121f1f177ba23f684c8f4bc105d57e

SHA512
97b64d37764851646b34b4e4f397faef6cc097e6e025be62fc416f13834dc8b86827239b370f31635ed454793c4d04515874886bef64af64c6ed403c3da3d8e9

Download Submit
C:\Users\Admin\AppData\Roaming\ajbycxarzb.txt

Filesize
92KB

MD5
e960b9b8954afa303d7989eed1290637

SHA1
a42410c56fb024243014c29334152c209ab88873

SHA256
4439ce946a74288bc91360bee4b7ef43e7efeced81432ba10728220c323d7c7f

SHA512
cdb3f0e2911f1841919847903c6f6bd695e3f15106c1a5b7fa19b70e549967beefa7c32c87a1a2040bbc2b7a75b1a90adc7a7e113f519e15b09f62dc0ea473c8

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

Filesize
5KB

MD5
1f7a1f50ddcaacd7c16098f452ae3ea9

SHA1
c31e3feb895e9b69db5e014cc42a2b3e03473016

SHA256
f14d01dc44ad040b5c3a8b418aa4c27bc476f0c5bd7af5e1554547fe0f6bb2ef

SHA512
6835fe9faac663378a6bd96e4dcba1f492d4dc488d410e019a965ca3c989c0d66d39f71b213a579c0e55fa4e52deb542b64c9b68108763af6ffed89414867271

Download Submit
memory/2072-95-0x00000255E8A00000-0x00000255E8A01000-memory.dmp

Filesize
4KB

Download
memory/2072-49-0x00000255EA1D0000-0x00000255EB1D0000-memory.dmp

Filesize
16.0MB

Download
memory/2072-25-0x00000255EA1D0000-0x00000255EB1D0000-memory.dmp

Filesize
16.0MB

Download
memory/2072-34-0x00000255E8A00000-0x00000255E8A01000-memory.dmp

Filesize
4KB

Download
memory/2072-96-0x00000255E8A00000-0x00000255E8A01000-memory.dmp

Filesize
4KB

Download
memory/2072-47-0x00000255E8A00000-0x00000255E8A01000-memory.dmp

Filesize
4KB

Download
memory/2072-48-0x00000255EA1D0000-0x00000255EB1D0000-memory.dmp

Filesize
16.0MB

Download
memory/2072-102-0x00000255EA1D0000-0x00000255EB1D0000-memory.dmp

Filesize
16.0MB

Download
memory/2072-50-0x00000255EA1D0000-0x00000255EB1D0000-memory.dmp

Filesize
16.0MB

Download
memory/2072-105-0x00000255E8A00000-0x00000255E8A01000-memory.dmp

Filesize
4KB

Download
memory/2072-66-0x00000255E8A00000-0x00000255E8A01000-memory.dmp

Filesize
4KB

Download
memory/2072-67-0x00000255E8A00000-0x00000255E8A01000-memory.dmp

Filesize
4KB

Download
memory/2072-68-0x00000255E8A00000-0x00000255E8A01000-memory.dmp

Filesize
4KB

Download
memory/2072-83-0x00000255E8A00000-0x00000255E8A01000-memory.dmp

Filesize
4KB

Download
memory/2072-93-0x00000255E8A00000-0x00000255E8A01000-memory.dmp

Filesize
4KB

Download
memory/2072-9-0x00000255EA1D0000-0x00000255EB1D0000-memory.dmp

Filesize
16.0MB

Download
memory/2072-38-0x00000255EA1D0000-0x00000255EB1D0000-memory.dmp

Filesize
16.0MB

Download
memory/2072-19-0x00000255E8A00000-0x00000255E8A01000-memory.dmp

Filesize
4KB

Download
memory/2072-61-0x00000255E8A00000-0x00000255E8A01000-memory.dmp

Filesize
4KB

Download
memory/2072-106-0x00000255E8A00000-0x00000255E8A01000-memory.dmp

Filesize
4KB

Download
memory/2072-109-0x00000255E8A00000-0x00000255E8A01000-memory.dmp

Filesize
4KB

Download
memory/2072-108-0x00000255EA1D0000-0x00000255EB1D0000-memory.dmp

Filesize
16.0MB

Download
memory/2072-115-0x00000255EA1D0000-0x00000255EB1D0000-memory.dmp

Filesize
16.0MB

Download
memory/2072-116-0x00000255EA1D0000-0x00000255EB1D0000-memory.dmp

Filesize
16.0MB

Download
memory/2072-120-0x00000255EA1D0000-0x00000255EB1D0000-memory.dmp

Filesize
16.0MB

Download
memory/2072-119-0x00000255E8A00000-0x00000255E8A01000-memory.dmp

Filesize
4KB

Download
memory/2072-124-0x00000255EA1D0000-0x00000255EB1D0000-memory.dmp

Filesize
16.0MB

Download
memory/2072-125-0x00000255E8A00000-0x00000255E8A01000-memory.dmp

Filesize
4KB

Download
memory/2072-126-0x00000255E8A00000-0x00000255E8A01000-memory.dmp

Filesize
4KB

Download
memory/2072-131-0x00000255EA1D0000-0x00000255EB1D0000-memory.dmp

Filesize
16.0MB

Download
memory/2072-136-0x00000255EA1D0000-0x00000255EB1D0000-memory.dmp

Filesize
16.0MB

Download
memory/2072-138-0x00000255EA650000-0x00000255EA660000-memory.dmp

Filesize
64KB

Download
memory/2072-137-0x00000255EA640000-0x00000255EA650000-memory.dmp

Filesize
64KB

Download
memory/2072-139-0x00000255EA1D0000-0x00000255EB1D0000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads