vjw0rm | e69e8751b597257f5e4f6a3fe1fdfa0ef273d8c6c6a7b1e620e392aee0cc64e4

General

Target

b63a2f41efeaf76634460ebf1b32226d.jar
Size

125KB
MD5

b63a2f41efeaf76634460ebf1b32226d
SHA1

a45e1e55cc9aef31f2d9a60a11693e2d5d172fbe
SHA256

e69e8751b597257f5e4f6a3fe1fdfa0ef273d8c6c6a7b1e620e392aee0cc64e4
SHA512

4b5ad11c67e8ca623c4e38b6fef15ce262ad5f2b4319aac2b4df57504c067b5b8240e9490ef686d0c2c40e2b9185b6ef1551e84bba2c6b58766e752860931faa
SSDEEP

3072:rGMG3YXiOSXwVB8iJjzVhZnX3R+lIL+TqQN7JmhPxd8w:rGIio8M7xXIlLTqa7ohPv8w

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-1-5-21-566096764-1992588923-1249862864-1000\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
4368	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-1-5-21-566096764-1992588923-1249862864-1000\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-1-5-21-566096764-1992588923-1249862864-1000_Classes\Local Settings	wscript.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1988 wrote to memory of 4368	1988	java.exe	92
PID 1988 wrote to memory of 4368	1988	java.exe	92
PID 1988 wrote to memory of 3312	1988	java.exe	94
PID 1988 wrote to memory of 3312	1988	java.exe	94
PID 3312 wrote to memory of 2028	3312	wscript.exe	96
PID 3312 wrote to memory of 2028	3312	wscript.exe	96
PID 3312 wrote to memory of 3500	3312	wscript.exe	97
PID 3312 wrote to memory of 3500	3312	wscript.exe	97

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\b63a2f41efeaf76634460ebf1b32226d.jar
1⤵
- Suspicious use of WriteProcessMemory
PID:1988
- C:\Windows\system32\icacls.exe
  C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
  2⤵
  - Modifies file permissions
  PID:4368
- C:\Windows\SYSTEM32\wscript.exe
  wscript C:\Users\Admin\usdbfroxqt.js
  2⤵
  - Checks computer location settings
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3312
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\tKaUarDZDG.js"
    3⤵
    - Drops startup file
    - Adds Run key to start application
    PID:2028
- - 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\fqjwwfxgmt.txt"
    3⤵
    PID:3500

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
46B

MD5
edb2b9dec2de38c611b70b2e27aa21e4

SHA1
c7349e9f5374eb7fdb3d370d1a88b4b61014a275

SHA256
20c88de33ed500605813ccfda620359d8e797c274cc2574c964163f4bf64c622

SHA512
c2e2c1c98351db43730b261d63d191584a21a25ab48c6c40173c03893edcea95d9aadca72c3ac38afd37b186e21d704dfbf71dcd1b100b16a0c523a175d0f5b1

Download Submit
C:\Users\Admin\AppData\Roaming\fqjwwfxgmt.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
C:\Users\Admin\usdbfroxqt.js

Filesize
124KB

MD5
6330f419fd4ad2cda24d47be23c79b95

SHA1
afd52d54e8799275e98047cedce5bbaefc771a52

SHA256
b3a16ca2e73912696de6a5308ca1b22b981369761df947f4641212d783450418

SHA512
1d13d797e47916484a1a5dd8376bd9ac83e9dccca91636038059c64c3e214275c232721f0b146152800f5f49bdd5c9e3d907f2dc813e489153b2f6c57cecbf10

Download Submit
memory/1988-3-0x000001F4B8360000-0x000001F4B9360000-memory.dmp

Filesize
16.0MB

Download
memory/1988-14-0x000001F4B6940000-0x000001F4B6941000-memory.dmp

Filesize
4KB

Download
memory/3500-60-0x00000222326A0000-0x00000222336A0000-memory.dmp

Filesize
16.0MB

Download
memory/3500-72-0x00000222326A0000-0x00000222336A0000-memory.dmp

Filesize
16.0MB

Download
memory/3500-39-0x00000222326A0000-0x00000222336A0000-memory.dmp

Filesize
16.0MB

Download
memory/3500-42-0x0000022230EB0000-0x0000022230EB1000-memory.dmp

Filesize
4KB

Download
memory/3500-51-0x0000022230EB0000-0x0000022230EB1000-memory.dmp

Filesize
4KB

Download
memory/3500-50-0x00000222326A0000-0x00000222336A0000-memory.dmp

Filesize
16.0MB

Download
memory/3500-30-0x00000222326A0000-0x00000222336A0000-memory.dmp

Filesize
16.0MB

Download
memory/3500-65-0x0000022230EB0000-0x0000022230EB1000-memory.dmp

Filesize
4KB

Download
memory/3500-67-0x00000222326A0000-0x00000222336A0000-memory.dmp

Filesize
16.0MB

Download
memory/3500-33-0x0000022230EB0000-0x0000022230EB1000-memory.dmp

Filesize
4KB

Download
memory/3500-74-0x0000022230EB0000-0x0000022230EB1000-memory.dmp

Filesize
4KB

Download
memory/3500-76-0x0000022230EB0000-0x0000022230EB1000-memory.dmp

Filesize
4KB

Download
memory/3500-103-0x0000022230EB0000-0x0000022230EB1000-memory.dmp

Filesize
4KB

Download
memory/3500-107-0x0000022230EB0000-0x0000022230EB1000-memory.dmp

Filesize
4KB

Download
memory/3500-119-0x0000022230EB0000-0x0000022230EB1000-memory.dmp

Filesize
4KB

Download
memory/3500-126-0x00000222326A0000-0x00000222336A0000-memory.dmp

Filesize
16.0MB

Download
memory/3500-130-0x00000222326A0000-0x00000222336A0000-memory.dmp

Filesize
16.0MB

Download
memory/3500-134-0x00000222326A0000-0x00000222336A0000-memory.dmp

Filesize
16.0MB

Download
memory/3500-138-0x00000222326A0000-0x00000222336A0000-memory.dmp

Filesize
16.0MB

Download
memory/3500-141-0x00000222326A0000-0x00000222336A0000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads