strrat | 69fb35e904fe4c93486d3eafc2828feb26b19fa2fc41a0e45aceeff67f8e81ae

General

Target

新命令__________.PDF.js
Size

207KB
MD5

9154158d95df39303de36b475a790529
SHA1

b79ad43d110887b9302bbfca092517a1fb0f43f3
SHA256

ce8e23a1309e4fbe54a48d36c5c68af97df72073acce4a930df3246a34a75f32
SHA512

de36f4d45c7b03f8cb70498bfd7a9285303814eb20a9a7f09a7855db6daacf817e4e6a0f63f6e63dd46b8bff7d4704155daa4fb2e9ca5a4902957dead3ee7a82
SSDEEP

6144:Fsz4hHiD3tMMqaMqKg+CJpjEwIjzHAOweb:FfimpXUJpa3r

Score

10^/10

strrat vjw0rm execution persistence stealer trojan worm

Malware Config

Signatures

STRRAT
STRRAT is a remote access tool than can steal credentials and log keystrokes.
trojan stealer strrat
Strrat family
strrat
Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
Vjw0rm family
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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WOChiHyFPM.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WOChiHyFPM.js	WScript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tkcnufapah.txt	java.exe

Loads dropped DLL 2 IoCs

pid	Process
3536	java.exe
2780	java.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\WOChiHyFPM.js\""	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tkcnufapah = "\"C:\\Users\\Admin\\AppData\\Roaming\\tkcnufapah.txt\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tkcnufapah = "\"C:\\Users\\Admin\\AppData\\Roaming\\tkcnufapah.txt\""	java.exe

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
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-1-5-21-493223053-2004649691-1575712786-1000_Classes\Local Settings	wscript.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2140	schtasks.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 2124	2372	wscript.exe	85
PID 2372 wrote to memory of 2124	2372	wscript.exe	85
PID 2372 wrote to memory of 4276	2372	wscript.exe	86
PID 2372 wrote to memory of 4276	2372	wscript.exe	86
PID 4276 wrote to memory of 3536	4276	javaw.exe	89
PID 4276 wrote to memory of 3536	4276	javaw.exe	89
PID 3536 wrote to memory of 4584	3536	java.exe	91
PID 3536 wrote to memory of 4584	3536	java.exe	91
PID 3536 wrote to memory of 2780	3536	java.exe	92
PID 3536 wrote to memory of 2780	3536	java.exe	92
PID 4584 wrote to memory of 2140	4584	cmd.exe	95
PID 4584 wrote to memory of 2140	4584	cmd.exe	95

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\新命令__________.PDF.js
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\WOChiHyFPM.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:2124
- 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\tkcnufapah.txt"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4276
- - C:\Program Files\Java\jre-1.8\bin\java.exe
    "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\tkcnufapah.txt"
    3⤵
    - Drops startup file
    - Loads dropped DLL
    - Adds Run key to start application
    - Suspicious use of WriteProcessMemory
    PID:3536
  - - C:\Windows\SYSTEM32\cmd.exe
      cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\tkcnufapah.txt"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4584
    - - C:\Windows\system32\schtasks.exe
        
        schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\tkcnufapah.txt"
        5⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:2140
  - - C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\tkcnufapah.txt"
      4⤵
      Loads dropped DLL
      PID:2780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

JavaScript

1

T1059.007

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna2677702039006880608.dll

Filesize
241KB

MD5
e02979ecd43bcc9061eb2b494ab5af50

SHA1
3122ac0e751660f646c73b10c4f79685aa65c545

SHA256
a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

SHA512
1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-493223053-2004649691-1575712786-1000\83aa4cc77f591dfc2374580bbd95f6ba_755b0f1a-bb38-4bb2-bc7e-240c892146ee

Filesize
45B

MD5
c8366ae350e7019aefc9d1e6e6a498c6

SHA1
5731d8a3e6568a5f2dfbbc87e3db9637df280b61

SHA256
11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

SHA512
33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

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

Filesize
10KB

MD5
5f1405a47e8cf0bc0188332a4a791761

SHA1
638fe4be43f13d79266be5ee35b7879fdeafc71a

SHA256
d9d12a49414db2909da558bed4013e0987fe61140f3c4e17501800ac32d422f7

SHA512
d2e722dea389123c24534bc661352a7bf42188b47428bb24f1507db4b68f0d47e49b3f95d8cab3f7d5470aa31f51fa72be5d63a4560e785d04860d2a5bd54313

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

Filesize
92KB

MD5
2e458a59025b390fbdf7d3717314b507

SHA1
d5a84f501bfa81682ebde5e31a68794140141785

SHA256
6b723bd260b53c68c716ef218c78718d3e99ab4d4238a4bd823fd0cd6ec8007b

SHA512
2b463bc4ef98264560abad47053549c463fc9ee098c97cd60d58c959ba67f4ddf2ca60856f6564802a9f056740fbedbb6bdc829388c136c13b334563465d1f22

Download Submit
C:\Users\Admin\lib\jna-5.5.0.jar

Filesize
1.4MB

MD5
acfb5b5fd9ee10bf69497792fd469f85

SHA1
0e0845217c4907822403912ad6828d8e0b256208

SHA256
b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e

SHA512
e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa

Download Submit
C:\Users\Admin\lib\jna-platform-5.5.0.jar

Filesize
2.6MB

MD5
2f4a99c2758e72ee2b59a73586a2322f

SHA1
af38e7c4d0fc73c23ecd785443705bfdee5b90bf

SHA256
24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5

SHA512
b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494

Download Submit
C:\Users\Admin\lib\sqlite-jdbc-3.14.2.1.jar

Filesize
4.1MB

MD5
b33387e15ab150a7bf560abdc73c3bec

SHA1
66b8075784131f578ef893fd7674273f709b9a4c

SHA256
2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491

SHA512
25cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279

Download Submit
C:\Users\Admin\lib\system-hook-3.5.jar

Filesize
772KB

MD5
e1aa38a1e78a76a6de73efae136cdb3a

SHA1
c463da71871f780b2e2e5dba115d43953b537daf

SHA256
2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609

SHA512
fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d

Download Submit
memory/2780-169-0x0000018A502B0000-0x0000018A502B1000-memory.dmp

Filesize
4KB

Download
memory/3536-148-0x00000219AA070000-0x00000219AA071000-memory.dmp

Filesize
4KB

Download
memory/3536-120-0x00000219AA070000-0x00000219AA071000-memory.dmp

Filesize
4KB

Download
memory/4276-63-0x000001F6344F0000-0x000001F6344F1000-memory.dmp

Filesize
4KB

Download
memory/4276-77-0x000001F6344F0000-0x000001F6344F1000-memory.dmp

Filesize
4KB

Download
memory/4276-97-0x000001F6344F0000-0x000001F6344F1000-memory.dmp

Filesize
4KB

Download
memory/4276-98-0x000001F634510000-0x000001F634780000-memory.dmp

Filesize
2.4MB

Download
memory/4276-87-0x000001F6344F0000-0x000001F6344F1000-memory.dmp

Filesize
4KB

Download
memory/4276-86-0x000001F6344F0000-0x000001F6344F1000-memory.dmp

Filesize
4KB

Download
memory/4276-83-0x000001F6344F0000-0x000001F6344F1000-memory.dmp

Filesize
4KB

Download
memory/4276-94-0x000001F634510000-0x000001F634780000-memory.dmp

Filesize
2.4MB

Download
memory/4276-74-0x000001F6344F0000-0x000001F6344F1000-memory.dmp

Filesize
4KB

Download
memory/4276-70-0x000001F6344F0000-0x000001F6344F1000-memory.dmp

Filesize
4KB

Download
memory/4276-62-0x000001F6344F0000-0x000001F6344F1000-memory.dmp

Filesize
4KB

Download
memory/4276-39-0x000001F6344F0000-0x000001F6344F1000-memory.dmp

Filesize
4KB

Download
memory/4276-18-0x000001F6344F0000-0x000001F6344F1000-memory.dmp

Filesize
4KB

Download
memory/4276-8-0x000001F634510000-0x000001F634780000-memory.dmp

Filesize
2.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads