strrat | f0d1596a53d0764566c2c306e918d7564519e92e5614f10fb32c3f56d74c40c5

Analysis

max time kernel
125s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24/11/2024, 20:16

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General

Target
96fad56cee1be508f8a2a15d2ae62995_JaffaCakes118.jar
Size 119KB
Sample241124-y2a8natldn
SHA256 f0d1596a53d0764566c2c306e918d7564519e92e5614f10fb32c3f56d74c40c5
MD5 96fad56cee1be508f8a2a15d2ae62995
SHA1 c2c876559c4266e80c9d1841825cb0f515b4b71f
SHA512 8a7494d535aa4f2d046f5d2b2945008be83fcb35db68af4b1172432ea202436e22ba59273c262d61190a0d5567a6a21666125144077b84d7c9fff76982578107
SSDEEP 3072:z3cSUgKmq1p8PJm8HaRTSYva87Utdj2BFLGvuwR:zpUOqQPErR1va87Sdu4
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

strrat execution persistence stealer trojan

Malware Config

Signatures

STRRAT
STRRAT is a remote access tool than can steal credentials and log keystrokes.
trojan stealer strrat
Strrat family
strrat

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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vyrwhjickr.txt	java.exe

Loads dropped DLL 2 IoCs

pid	Process
1548	java.exe
2176	java.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vyrwhjickr = "\"C:\\Users\\Admin\\AppData\\Roaming\\vyrwhjickr.txt\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vyrwhjickr = "\"C:\\Users\\Admin\\AppData\\Roaming\\vyrwhjickr.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

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
4824	schtasks.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3292 wrote to memory of 3708	3292	java.exe	84
PID 3292 wrote to memory of 3708	3292	java.exe	84
PID 3708 wrote to memory of 1444	3708	wscript.exe	85
PID 3708 wrote to memory of 1444	3708	wscript.exe	85
PID 1444 wrote to memory of 1548	1444	javaw.exe	94
PID 1444 wrote to memory of 1548	1444	javaw.exe	94
PID 1548 wrote to memory of 2740	1548	java.exe	96
PID 1548 wrote to memory of 2740	1548	java.exe	96
PID 1548 wrote to memory of 2176	1548	java.exe	97
PID 1548 wrote to memory of 2176	1548	java.exe	97
PID 2740 wrote to memory of 4824	2740	cmd.exe	100
PID 2740 wrote to memory of 4824	2740	cmd.exe	100

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:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\96fad56cee1be508f8a2a15d2ae62995_JaffaCakes118.jar
1⤵
- Suspicious use of WriteProcessMemory
PID:3292
- C:\Windows\SYSTEM32\wscript.exe
  wscript C:\Users\Admin\czbevvbmcw.js
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:3708
- - 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\vyrwhjickr.txt"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1444
  - - C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\vyrwhjickr.txt"
      4⤵
      Drops startup file
      Loads dropped DLL
      Adds Run key to start application
      Suspicious use of WriteProcessMemory
      PID:1548
    - - C:\Windows\SYSTEM32\cmd.exe
        
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\vyrwhjickr.txt"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:2740
      - C:\Windows\system32\schtasks.exe
        
        schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\vyrwhjickr.txt"
        6⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:4824
    - - 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\vyrwhjickr.txt"
        5⤵
        Loads dropped DLL
        
        PID:2176

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

3903daac9bc4a3b7.timestamp

Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
Size 46B
SHA256 aa6a0f33d3cf34e7cc2870a25846b1ed4169a9b36599fe002e50f4f307437cf5
MD5 df0c11e3eec70ab37e3c4af578595ecc
SHA1 f8f616e9173c770ba7d60c95864b02a905dfba15
SHA512 acdcfd39e18ef546aa6c68e1c7b894034db469469e790dc8fdc7a70fc138d94daef1a1a47bea0e74827321e596ca946af3972a8b47594548b5d7b825d199824c
MD5 SHA1 SHA512

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3903daac9bc4a3b7.timestamp

Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
Size 46B
SHA256 27475dedbd09fa3e46d1fb4ea9f049bc9c6d1b43e4f616c8e3f1d3bc627e9faf
MD5 9543e5a865bb5efffac798de341e3e8c
SHA1 47f259c38e5f3b20d578534bba5370e774c85e3d
SHA512 b41bbce0d6d7fa867fe99c0515cb8c94dc64dd05de5b13a8327b58412ee2f41f108fa363a32a27798c3a72e254e84525ca7ae2faed0d42f69ba151fb78e214e9
MD5 SHA1 SHA512

Submit Download

jna3323587597594168790.dll

Path C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna3323587597594168790.dll
Size 241KB
SHA256 a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
MD5 e02979ecd43bcc9061eb2b494ab5af50
SHA1 3122ac0e751660f646c73b10c4f79685aa65c545
SHA512 1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
SSDEEP 6144:YW2uuBVCg2ZF0xk5udHB7EkAgEEz2Lh2LDh+MDWHNaL7yyubjmiy9NBW:YW2uAC9sVEZL0vdnz
MD5 SHA1 SHA512 SSDEEP

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83aa4cc77f591dfc2374580bbd95f6ba_dd2803c7-d377-4f06-bdfe-aea230fc7b0e

Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3350944739-639801879-157714471-1000\83aa4cc77f591dfc2374580bbd95f6ba_dd2803c7-d377-4f06-bdfe-aea230fc7b0e
Size 45B
SHA256 11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
MD5 c8366ae350e7019aefc9d1e6e6a498c6
SHA1 5731d8a3e6568a5f2dfbbc87e3db9637df280b61
SHA512 33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd
MD5 SHA1 SHA512

Submit Download

vyrwhjickr.txt

Path C:\Users\Admin\AppData\Roaming\vyrwhjickr.txt
Size 88KB
SHA256 76ebd50d7ec67bd08788951e1c6fd5cb81a9e978a1e4f24a5fff2e6d00f24e52
MD5 3ef17a2463be4a913a608026b23594a4
SHA1 94bd0098203c4eb914521428d6257a183f90702a
SHA512 ce97a4ab5b83c8eda811f53e1fa86080b8182fcb9e228834c42a729a5f3968285dcdcb73557ddad4724f1ce17958e32b54c5c58ad8e9e8196d3dd078511263c6
SSDEEP 1536:oQ5joGISDJ7jIKhaJ7StPZSWVFXUeuaUt8mKIsJufHuO8xNcgI:o4L5nPX/uaUKmJuO8xNM
MD5 SHA1 SHA512 SSDEEP

Submit Download

czbevvbmcw.js

Path C:\Users\Admin\czbevvbmcw.js
Size 204KB
SHA256 f92c3349fc36d7f16ca5d7ef12654b61965f14f27377aab85d43134d4baf5be6
MD5 302bfb583eb5f55c3b110779ad22e3bd
SHA1 462fca2ab32ae19af2cba7ef194a750a47cf4df8
SHA512 30dfbb67bf851ca49764180303124987afc57fee49d80e29e5d0db216db5f84ac44d9c3426bcdc35e397fbec63ff57676c97ac5e77ee47ed24606a2f337f0312
SSDEEP 3072:s7btWUK6x2M0vhkFsv9g7P+sYFzRWQEdXWxwzQEG+iJoI22ddlf85SQX71Nt:sdWbLascJwOdX8DZJoI5ddlQHX7vt
MD5 SHA1 SHA512 SSDEEP

Submit Download

jna-5.5.0.jar

Path C:\Users\Admin\lib\jna-5.5.0.jar
Size 1.4MB
SHA256 b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e
MD5 acfb5b5fd9ee10bf69497792fd469f85
SHA1 0e0845217c4907822403912ad6828d8e0b256208
SHA512 e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa
SSDEEP 24576:BggLnybolJdaW+864NkqCUer8N7sSFOaj5lWOEMIKk6idJRWPTgzq3bICEz2lFO:BTnybo9aW+L5qCUO0xsiMPZrJgPLLIO6
MD5 SHA1 SHA512 SSDEEP

Submit Download

jna-platform-5.5.0.jar

Path C:\Users\Admin\lib\jna-platform-5.5.0.jar
Size 2.6MB
SHA256 24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5
MD5 2f4a99c2758e72ee2b59a73586a2322f
SHA1 af38e7c4d0fc73c23ecd785443705bfdee5b90bf
SHA512 b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494
SSDEEP 24576:DyciOooDbK7Yw1J75n4BP/NtK2ov3mhDR6:3iOLDOZJ75nwtK2ovWh8
MD5 SHA1 SHA512 SSDEEP

Submit Download

sqlite-jdbc-3.14.2.1.jar

Path C:\Users\Admin\lib\sqlite-jdbc-3.14.2.1.jar
Size 4.1MB
SHA256 2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491
MD5 b33387e15ab150a7bf560abdc73c3bec
SHA1 66b8075784131f578ef893fd7674273f709b9a4c
SHA512 25cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279
SSDEEP 98304:czJoX0izQbrabWo2MxgErRYxFOY8IsFWyTIiTIzMpca:cJoXHQKW9MxRr8wZZsikzMaa
MD5 SHA1 SHA512 SSDEEP

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system-hook-3.5.jar

Path C:\Users\Admin\lib\system-hook-3.5.jar
Size 772KB
SHA256 2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609
MD5 e1aa38a1e78a76a6de73efae136cdb3a
SHA1 c463da71871f780b2e2e5dba115d43953b537daf
SHA512 fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d
SSDEEP 24576:IhCFW8WXvOsWW9XGmvcVfkfTnzrLvadKPpv:IhCYWstW202t
MD5 SHA1 SHA512 SSDEEP

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memory/1444-97-0x000001E63E390000-0x000001E63E391000-memory.dmp

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memory/1444-20-0x000001E63FC00000-0x000001E63FE70000-memory.dmp

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memory/1444-71-0x000001E63E390000-0x000001E63E391000-memory.dmp

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memory/1444-98-0x000001E63FC00000-0x000001E63FE70000-memory.dmp

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memory/1444-56-0x000001E63E390000-0x000001E63E391000-memory.dmp

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memory/1444-78-0x000001E63E390000-0x000001E63E391000-memory.dmp

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memory/1444-74-0x000001E63E390000-0x000001E63E391000-memory.dmp

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memory/1444-93-0x000001E63E390000-0x000001E63E391000-memory.dmp

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memory/1444-36-0x000001E63E390000-0x000001E63E391000-memory.dmp

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memory/1548-122-0x000001B9BA880000-0x000001B9BA881000-memory.dmp

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memory/1548-147-0x000001B9BA880000-0x000001B9BA881000-memory.dmp

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memory/2176-171-0x000001AD35A40000-0x000001AD35A41000-memory.dmp

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memory/3292-2-0x000001874D740000-0x000001874D9B0000-memory.dmp

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memory/3292-14-0x000001874D740000-0x000001874D9B0000-memory.dmp

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memory/3292-13-0x000001874BF60000-0x000001874BF61000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads