strrat | 4f071d0dfe0d2e57c44b9157680ef8d17a36323095c212f3fb09faf59d8c91c1

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
03-07-2024 16:35

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General

Target

230f66e17bb2888242f14a2403d0c9a6_JaffaCakes118.jar
Size

175KB
MD5

230f66e17bb2888242f14a2403d0c9a6
SHA1

7482a6068d0562b8002bc1827d9b073012d389ba
SHA256

4f071d0dfe0d2e57c44b9157680ef8d17a36323095c212f3fb09faf59d8c91c1
SHA512

1a5b6028890ec40ea2b56840b6d96f724a853e085a5171f14758353f5909626df1459610ffe22565b8de71a28d8bae3b30c01d1c01d145f56997060e8b5c43db
SSDEEP

3072:mFe/oCh46wP4TEx46CG2Q8yIsKAE6tH0rzZcPU7rWIC0IegnEWetqaDtbQK:mFChxwQU4e29yIzAbRQSXSIextqaDtQK

Score

10^/10

strrat discovery execution persistence stealer trojan

Malware Config

Signatures

STRRAT
STRRAT is a remote access tool than can steal credentials and log keystrokes.
trojan stealer 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-1-5-21-4124900551-4068476067-3491212533-1000\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\eplcpjeuz.txt	java.exe

Loads dropped DLL 3 IoCs

pid	Process
2952	java.exe
728	java.exe
3640	java.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
32	icacls.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\eplcpjeuz = "\"C:\\Users\\Admin\\AppData\\Roaming\\eplcpjeuz.txt\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\eplcpjeuz = "\"C:\\Users\\Admin\\AppData\\Roaming\\eplcpjeuz.txt\""	java.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\plugins = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\plugins.jar\" mp"	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\plugins = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\plugins.jar\" mp"	java.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
59	pastebin.com
60	pastebin.com

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-1-5-21-4124900551-4068476067-3491212533-1000_Classes\Local Settings	wscript.exe

Runs .reg file with regedit 1 IoCs

pid	Process
1540	regedit.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
3380	schtasks.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3160 wrote to memory of 32	3160	java.exe	82
PID 3160 wrote to memory of 32	3160	java.exe	82
PID 3160 wrote to memory of 2008	3160	java.exe	84
PID 3160 wrote to memory of 2008	3160	java.exe	84
PID 2008 wrote to memory of 1540	2008	wscript.exe	85
PID 2008 wrote to memory of 1540	2008	wscript.exe	85
PID 2008 wrote to memory of 4668	2008	wscript.exe	93
PID 2008 wrote to memory of 4668	2008	wscript.exe	93
PID 4668 wrote to memory of 2952	4668	javaw.exe	94
PID 4668 wrote to memory of 2952	4668	javaw.exe	94
PID 2952 wrote to memory of 4124	2952	java.exe	96
PID 2952 wrote to memory of 4124	2952	java.exe	96
PID 2952 wrote to memory of 728	2952	java.exe	97
PID 2952 wrote to memory of 728	2952	java.exe	97
PID 4124 wrote to memory of 3380	4124	cmd.exe	100
PID 4124 wrote to memory of 3380	4124	cmd.exe	100
PID 728 wrote to memory of 3640	728	java.exe	101
PID 728 wrote to memory of 3640	728	java.exe	101

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\230f66e17bb2888242f14a2403d0c9a6_JaffaCakes118.jar
1⤵
- Suspicious use of WriteProcessMemory
PID:3160
- 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:32
- C:\Windows\SYSTEM32\wscript.exe
  wscript C:\Users\Admin\dnweiidfnz.js
  2⤵
  - Checks computer location settings
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2008
- - C:\Windows\regedit.exe
    "regedit.exe" "C:\Users\Admin\AppData\Local\Temp\ebgeaegdbdecaedfebace.reg"
    3⤵
    - Runs .reg file with regedit
    PID:1540
- - 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\eplcpjeuz.txt"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4668
  - - C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\eplcpjeuz.txt"
      4⤵
      Drops startup file
      Loads dropped DLL
      Adds Run key to start application
      Suspicious use of WriteProcessMemory
      PID:2952
    - - C:\Windows\SYSTEM32\cmd.exe
        
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\eplcpjeuz.txt"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:4124
      - C:\Windows\system32\schtasks.exe
        
        schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\eplcpjeuz.txt"
        6⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:3380
    - - 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\eplcpjeuz.txt"
        5⤵
        Loads dropped DLL
        Suspicious use of WriteProcessMemory
        
        PID:728
      - 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\plugins.jar" mp
        6⤵
        Loads dropped DLL
        Adds Run key to start application
        
        PID:3640

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

File and Directory Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

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

Filesize
46B

MD5
24bc76920880446b4bec0d3092c024b3

SHA1
383220e86c01aa17008f0988689da53730ca819d

SHA256
7ecec8315f3c7a7bb943c8c52cc76e1995c7b40e6dac3837dafae00e35d27675

SHA512
9b9a2ff8888416cc4e7244745e1396bc0d2ff8445bea911fd784c0a003e9b5db3d63446bdb115f80a326f0e8a659b116a7b7ddd49999bf10811d4ba839c6bbfd

Download Submit
C:\Users\Admin\AppData\Local\Temp\ebgeaegdbdecaedfebace.reg

Filesize
143B

MD5
0e5411d7ecba9a435afda71c6c39d8fd

SHA1
2d6812052bf7be1b5e213e1d813ae39faa07284c

SHA256
cb68d50df5817e51ec5b2f72893dc4c749bf3504519107e0a78dda84d55f09e2

SHA512
903ac6e5c8a12607af267b54bcbbedfa5542c5b4f7ea289ab7c6a32a424d5b846ae406d830cb4ad48e2b46f92c504163c0856af8c3e09685a8855f39f616ddb1

Download Submit
C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna1157374096158191348.dll

Filesize
241KB

MD5
e02979ecd43bcc9061eb2b494ab5af50

SHA1
3122ac0e751660f646c73b10c4f79685aa65c545

SHA256
a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

SHA512
1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-4124900551-4068476067-3491212533-1000\83aa4cc77f591dfc2374580bbd95f6ba_310807ab-751f-4d81-ae09-b202eaf21e19

Filesize
45B

MD5
c8366ae350e7019aefc9d1e6e6a498c6

SHA1
5731d8a3e6568a5f2dfbbc87e3db9637df280b61

SHA256
11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

SHA512
33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

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

Filesize
91KB

MD5
6bf6805ce69e195155646d86e8f9d79f

SHA1
81364da6cad1a1b22d00542f1d6066a05c05bcfe

SHA256
e6bc1311af74b649c4ee6e54de5eed79dee7ece5a62d4e20d28114330707b1d1

SHA512
38ba3e3692c205ef2aa83093149153805d6273015587e8010d7c1beff546f8495b25cd42b40be0adf01f3abd698082e564a10aa717a5499865dc99411b9589aa

Download Submit
C:\Users\Admin\dnweiidfnz.js

Filesize
723KB

MD5
49c79dbf81dc58d7e363cb16f3650bbe

SHA1
6c370454991e03909553c1994c1480c2176f7e4c

SHA256
7adef8dddeec17419a2e7b098915cd70a85294ce5d7ed96c028e007d8c9ff51d

SHA512
381a7c255a0acb7b01bb9d00e5582198c38ae82c5a1f1b07e307ec213ea783959a684d848d972d185641d979dcca66ff962edb971f51d7f47557e3fce8620bc1

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/728-182-0x00000169E00A0000-0x00000169E00A1000-memory.dmp

Filesize
4KB

Download
memory/728-226-0x00000169E00A0000-0x00000169E00A1000-memory.dmp

Filesize
4KB

Download
memory/2952-127-0x000002B7476B0000-0x000002B7476B1000-memory.dmp

Filesize
4KB

Download
memory/2952-150-0x000002B7476B0000-0x000002B7476B1000-memory.dmp

Filesize
4KB

Download
memory/3160-14-0x00000164BDBE0000-0x00000164BDBE1000-memory.dmp

Filesize
4KB

Download
memory/3160-2-0x00000164BF5F0000-0x00000164BF860000-memory.dmp

Filesize
2.4MB

Download
memory/3160-15-0x00000164BF5F0000-0x00000164BF860000-memory.dmp

Filesize
2.4MB

Download
memory/3640-253-0x000002C5F1E90000-0x000002C5F1E91000-memory.dmp

Filesize
4KB

Download
memory/3640-242-0x000002C5F1E90000-0x000002C5F1E91000-memory.dmp

Filesize
4KB

Download
memory/3640-215-0x000002C5F1E90000-0x000002C5F1E91000-memory.dmp

Filesize
4KB

Download
memory/4668-77-0x000001949F4E0000-0x000001949F4E1000-memory.dmp

Filesize
4KB

Download
memory/4668-47-0x000001949F4E0000-0x000001949F4E1000-memory.dmp

Filesize
4KB

Download
memory/4668-74-0x000001949F4E0000-0x000001949F4E1000-memory.dmp

Filesize
4KB

Download
memory/4668-101-0x000001949F4E0000-0x000001949F4E1000-memory.dmp

Filesize
4KB

Download
memory/4668-87-0x000001949F4E0000-0x000001949F4E1000-memory.dmp

Filesize
4KB

Download
memory/4668-97-0x000001949F4E0000-0x000001949F4E1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads