strrat | adb98023c3e9f04061ee66f43e2d2ea983301283d61324e69cef2a0304416e9b

General

Target

7a2fd40a032e726bde8638b079963c499d20c7c197a0f91544f458977fbd3304.js
Size

469KB
MD5

8fed7262f75ec7c978a03e8177dfadab
SHA1

3c95b2b69114082581b28a34533cbcddefd72516
SHA256

7a2fd40a032e726bde8638b079963c499d20c7c197a0f91544f458977fbd3304
SHA512

22a2ca24da0dd5d7a665d84fc58cc36013716d4605518f3c035d0bc5e6944825267e332708eb26623cba4e2d7b57b395caab6c5628b9e88f510fb23a8871e9f2
SSDEEP

6144:Qy6COPsZV2SvRmFgI9smdixnlahHhUgy6COPsZV2SvRmFgI9smdixnlahHhUt:wux5mFg6slxuKAux5mFg6slxuKt

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-1-5-21-2045521122-590294423-3465680274-1000\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\kgjBVaIrAu.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\kgjBVaIrAu.js	WScript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cwnoefqa.txt	java.exe

Loads dropped DLL 2 IoCs

pid	Process
2744	java.exe
4720	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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0HKX5ALWLG = "\"C:\\Users\\Admin\\AppData\\Roaming\\kgjBVaIrAu.js\""	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cwnoefqa = "\"C:\\Users\\Admin\\AppData\\Roaming\\cwnoefqa.txt\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cwnoefqa = "\"C:\\Users\\Admin\\AppData\\Roaming\\cwnoefqa.txt\""	java.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jre-1.8\cwnoefqa.txt	javaw.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-1-5-21-2045521122-590294423-3465680274-1000_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
4956	schtasks.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 4804	2176	wscript.exe	83
PID 2176 wrote to memory of 4804	2176	wscript.exe	83
PID 2176 wrote to memory of 2208	2176	wscript.exe	84
PID 2176 wrote to memory of 2208	2176	wscript.exe	84
PID 2208 wrote to memory of 4860	2208	javaw.exe	92
PID 2208 wrote to memory of 4860	2208	javaw.exe	92
PID 4860 wrote to memory of 2744	4860	java.exe	96
PID 4860 wrote to memory of 2744	4860	java.exe	96
PID 2744 wrote to memory of 1192	2744	java.exe	98
PID 2744 wrote to memory of 1192	2744	java.exe	98
PID 2744 wrote to memory of 4720	2744	java.exe	99
PID 2744 wrote to memory of 4720	2744	java.exe	99
PID 1192 wrote to memory of 4956	1192	cmd.exe	102
PID 1192 wrote to memory of 4956	1192	cmd.exe	102

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\7a2fd40a032e726bde8638b079963c499d20c7c197a0f91544f458977fbd3304.js
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\kgjBVaIrAu.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:4804
- 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\cwnoefqa.txt"
  2⤵
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2208
- - C:\Program Files\Java\jre-1.8\bin\java.exe
    "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Program Files\Java\jre-1.8\cwnoefqa.txt"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4860
  - - C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\cwnoefqa.txt"
      4⤵
      Drops startup file
      Loads dropped DLL
      Adds Run key to start application
      Suspicious use of WriteProcessMemory
      PID:2744
    - - C:\Windows\SYSTEM32\cmd.exe
        
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\cwnoefqa.txt"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1192
      - C:\Windows\system32\schtasks.exe
        
        schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\cwnoefqa.txt"
        6⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:4956
    - - 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\cwnoefqa.txt"
        5⤵
        Loads dropped DLL
        
        PID:4720

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\jna475324928180666110.dll

Filesize
241KB

MD5
e02979ecd43bcc9061eb2b494ab5af50

SHA1
3122ac0e751660f646c73b10c4f79685aa65c545

SHA256
a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

SHA512
1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2045521122-590294423-3465680274-1000\83aa4cc77f591dfc2374580bbd95f6ba_896de533-e5fb-4eb9-8f2b-d363f3584dc5

Filesize
45B

MD5
c8366ae350e7019aefc9d1e6e6a498c6

SHA1
5731d8a3e6568a5f2dfbbc87e3db9637df280b61

SHA256
11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

SHA512
33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

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

Filesize
107KB

MD5
e38670aa13e73105b5b518779c4983df

SHA1
dbed21eea88ad1574999e3db2b6d7eb19b5a2979

SHA256
e0141d12da8d9172a5ea7bad725a5f0c4a766473b914d1f6b2b1485a7eeadf8f

SHA512
f2fa507968f7c817ca55001215610a39cebd35ab76696593f87efc7f504572e2da3cdf5355c80cb420eb767dee950b5a7b71f83ba898ac08ac11f6be099c397e

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

Filesize
14KB

MD5
f74ee95cc8fbe51c705384a7dcc5a701

SHA1
b15a636ca2ce2f45dd466e5ee463f1cfed9fd64b

SHA256
a86309235858dbc9f91f1a8405a3599a70f2394b7671889c9f6a1b05831c3407

SHA512
e68783102258f983e31d4ffd7f4b532957072207dad9b892f388924d17e8909ac21cb59d823cd3dcedb066f69ac9053c8992cc40204f86798932eef2179d3ad6

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/2208-63-0x000001C25C100000-0x000001C25C101000-memory.dmp

Filesize
4KB

Download
memory/2208-45-0x000001C25C100000-0x000001C25C101000-memory.dmp

Filesize
4KB

Download
memory/2208-78-0x000001C25C100000-0x000001C25C101000-memory.dmp

Filesize
4KB

Download
memory/2208-81-0x000001C25C100000-0x000001C25C101000-memory.dmp

Filesize
4KB

Download
memory/2208-91-0x000001C25D8F0000-0x000001C25DB60000-memory.dmp

Filesize
2.4MB

Download
memory/2208-93-0x000001C25C100000-0x000001C25C101000-memory.dmp

Filesize
4KB

Download
memory/2208-94-0x000001C25C100000-0x000001C25C101000-memory.dmp

Filesize
4KB

Download
memory/2208-95-0x000001C25D8F0000-0x000001C25DB60000-memory.dmp

Filesize
2.4MB

Download
memory/2208-73-0x000001C25C100000-0x000001C25C101000-memory.dmp

Filesize
4KB

Download
memory/2208-8-0x000001C25D8F0000-0x000001C25DB60000-memory.dmp

Filesize
2.4MB

Download
memory/2208-18-0x000001C25C100000-0x000001C25C101000-memory.dmp

Filesize
4KB

Download
memory/2208-68-0x000001C25C100000-0x000001C25C101000-memory.dmp

Filesize
4KB

Download
memory/2208-59-0x000001C25C100000-0x000001C25C101000-memory.dmp

Filesize
4KB

Download
memory/2208-76-0x000001C25C100000-0x000001C25C101000-memory.dmp

Filesize
4KB

Download
memory/2208-43-0x000001C25C100000-0x000001C25C101000-memory.dmp

Filesize
4KB

Download
memory/2744-142-0x000001E97BAD0000-0x000001E97BAD1000-memory.dmp

Filesize
4KB

Download
memory/2744-168-0x000001E97BAD0000-0x000001E97BAD1000-memory.dmp

Filesize
4KB

Download
memory/4720-185-0x000002C3B22A0000-0x000002C3B22A1000-memory.dmp

Filesize
4KB

Download
memory/4860-120-0x0000028BA2DC0000-0x0000028BA2DC1000-memory.dmp

Filesize
4KB

Download
memory/4860-118-0x0000028BA2DC0000-0x0000028BA2DC1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads