vjw0rm | 28170716df5b62b92891e8e22847182fc2ac10b96222b74d0ad1230bd6b877b8

General

Target

e900e6cd547787c0ba378c4b46075d74_JaffaCakes118.exe
Size

355KB
MD5

e900e6cd547787c0ba378c4b46075d74
SHA1

c50fdd3e4679dfaaab9a6b88883f71582f14d417
SHA256

28170716df5b62b92891e8e22847182fc2ac10b96222b74d0ad1230bd6b877b8
SHA512

356e05929e245de6a0e7670438f61771a3b12a786afd8f22cc67267aa8cadccb59569dbb4c09815dfaa1818e4974e605c9099b5c6f381a43f85495dbb7c2f8f2
SSDEEP

6144:JjT5Zh17eWxoG/+ov/2OIQ4wW3OBsCeAWnNFP3b4yRbLdzzibNjgA:JRZ+IoG/n9IQxW3OBseSN1RbL1ubNl

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 6 IoCs

flow	pid	Process
4	2720	WScript.exe
8	2720	WScript.exe
9	2720	WScript.exe
11	2720	WScript.exe
12	2720	WScript.exe
13	2720	WScript.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\info.js	WScript.exe

Executes dropped EXE 1 IoCs

pid	Process
2724	setup.exe

Loads dropped DLL 4 IoCs

pid	Process
1188	e900e6cd547787c0ba378c4b46075d74_JaffaCakes118.exe
1188	e900e6cd547787c0ba378c4b46075d74_JaffaCakes118.exe
1188	e900e6cd547787c0ba378c4b46075d74_JaffaCakes118.exe
1188	e900e6cd547787c0ba378c4b46075d74_JaffaCakes118.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-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\WEHHRB8F7I = "\"C:\\Users\\Admin\\AppData\\Roaming\\info.js\""	WScript.exe

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

System Information Discovery
T1082

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral1/files/0x000e000000012321-7.dat	nsis_installer_1
behavioral1/files/0x000e000000012321-7.dat	nsis_installer_2

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
2468	schtasks.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1188 wrote to memory of 2720	1188	e900e6cd547787c0ba378c4b46075d74_JaffaCakes118.exe	28
PID 1188 wrote to memory of 2720	1188	e900e6cd547787c0ba378c4b46075d74_JaffaCakes118.exe	28
PID 1188 wrote to memory of 2720	1188	e900e6cd547787c0ba378c4b46075d74_JaffaCakes118.exe	28
PID 1188 wrote to memory of 2720	1188	e900e6cd547787c0ba378c4b46075d74_JaffaCakes118.exe	28
PID 1188 wrote to memory of 2724	1188	e900e6cd547787c0ba378c4b46075d74_JaffaCakes118.exe	29
PID 1188 wrote to memory of 2724	1188	e900e6cd547787c0ba378c4b46075d74_JaffaCakes118.exe	29
PID 1188 wrote to memory of 2724	1188	e900e6cd547787c0ba378c4b46075d74_JaffaCakes118.exe	29
PID 1188 wrote to memory of 2724	1188	e900e6cd547787c0ba378c4b46075d74_JaffaCakes118.exe	29
PID 1188 wrote to memory of 2724	1188	e900e6cd547787c0ba378c4b46075d74_JaffaCakes118.exe	29
PID 1188 wrote to memory of 2724	1188	e900e6cd547787c0ba378c4b46075d74_JaffaCakes118.exe	29
PID 1188 wrote to memory of 2724	1188	e900e6cd547787c0ba378c4b46075d74_JaffaCakes118.exe	29
PID 2720 wrote to memory of 2468	2720	WScript.exe	31
PID 2720 wrote to memory of 2468	2720	WScript.exe	31
PID 2720 wrote to memory of 2468	2720	WScript.exe	31
PID 2720 wrote to memory of 2468	2720	WScript.exe	31

C:\Users\Admin\AppData\Local\Temp\e900e6cd547787c0ba378c4b46075d74_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e900e6cd547787c0ba378c4b46075d74_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\info.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2720
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn anydesk /tr "C:\Users\Admin\AppData\Roaming\info.js
    3⤵
    - Creates scheduled task(s)
    PID:2468
- C:\Users\Admin\AppData\Local\Temp\setup.exe
  "C:\Users\Admin\AppData\Local\Temp\setup.exe"
  2⤵
  - Executes dropped EXE
  PID:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

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\info.js

Filesize
55KB

MD5
d5ad2ec0445ff7fd803f7f3ef8d5e00a

SHA1
c928fba62f4eb3ae1aad2c5c34782908ad57f715

SHA256
3f538dd314b6b25cb556f4e49dd2d835c3138768631054231e6cd9a3a23ba1e8

SHA512
98fd1a026bf04d7e20f19ae0ad8985e99489be60c022836b6d9950723b88f9f8bd29c4477fadd7f67f4845ed1698b3bea1dc61e9d6c56ec5f70e17f8e4c8964c

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

Filesize
66KB

MD5
9b8a268527c79c2e37cd3630769303a8

SHA1
e16d1a407e8374f9882c7814f5dc630e0a15690f

SHA256
07a9a0a4026aef36799649a86095f953fc8f7a32c1dab0a789c4bbb69ed46283

SHA512
afa9e670e770d2fca423fd8fcd72c5754ec174a2d626ad478f53f3df3f99bbf58c975afec05ce9135f28e2261efdf26b429ce1ba27135aed5d45bc1e5c86c6d7

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads