strrat | 2be16da829fd4bf627be3b5173ed0303f13175b4bff59d0913a88ed28ff6a521

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26-07-2024 01:43

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General

Target

MT0128.jar
Size

175KB
MD5

641fdb5107c6bf1464e504b104f4212e
SHA1

28d6a378737161239d1baccb676139465371e5b4
SHA256

d442f0733815e462aeaa718e6892f825ec32b82f6eb72c78fafb64746a59c397
SHA512

c7b770915cf7ebe17accb79c93a2f19790594ace9a775e7b705e2758428e9a98f662d92fff5f2b71dfef8591e012de9c7feec6df584a994cff657384fbe08208
SSDEEP

3072:C8MUKfL6brZYAogfu8PTO90GEUTX27X5G0mvQmriWDLKsmLnIEvj3+UwGABMEDsi:C/VYYAVfhO90GEUTW5qQmGWqsmLnT7+D

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

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

Processes:

wscript.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2636447293-1148739154-93880854-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 1 IoCs

Processes:

java.exe

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

Loads dropped DLL 3 IoCs

Processes:

java.exejava.exejava.exe

pid	Process
764	java.exe
2828	java.exe
948	java.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

java.exejava.exe

description	ioc	Process
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
Set value (str)	\REGISTRY\USER\S-1-5-21-2636447293-1148739154-93880854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\qvclpqlzeh = "\"C:\\Users\\Admin\\AppData\\Roaming\\qvclpqlzeh.txt\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\qvclpqlzeh = "\"C:\\Users\\Admin\\AppData\\Roaming\\qvclpqlzeh.txt\""	java.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2636447293-1148739154-93880854-1000\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

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

Web Service

T1102

Processes:

flow	ioc
72	pastebin.com
73	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

Processes:

wscript.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2636447293-1148739154-93880854-1000_Classes\Local Settings	wscript.exe

Runs .reg file with regedit 1 IoCs

Processes:

regedit.exe

pid	Process
4904	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

Processes:

schtasks.exe

pid	Process
1204	schtasks.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

java.exewscript.exejavaw.exejava.execmd.exejava.exe

description	pid	Process	procid_target
PID 2844 wrote to memory of 888	2844	java.exe	85
PID 2844 wrote to memory of 888	2844	java.exe	85
PID 888 wrote to memory of 4904	888	wscript.exe	87
PID 888 wrote to memory of 4904	888	wscript.exe	87
PID 888 wrote to memory of 4192	888	wscript.exe	98
PID 888 wrote to memory of 4192	888	wscript.exe	98
PID 4192 wrote to memory of 764	4192	javaw.exe	99
PID 4192 wrote to memory of 764	4192	javaw.exe	99
PID 764 wrote to memory of 4232	764	java.exe	101
PID 764 wrote to memory of 4232	764	java.exe	101
PID 764 wrote to memory of 2828	764	java.exe	102
PID 764 wrote to memory of 2828	764	java.exe	102
PID 4232 wrote to memory of 1204	4232	cmd.exe	105
PID 4232 wrote to memory of 1204	4232	cmd.exe	105
PID 2828 wrote to memory of 948	2828	java.exe	106
PID 2828 wrote to memory of 948	2828	java.exe	106

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\MT0128.jar
1⤵
- Suspicious use of WriteProcessMemory
PID:2844
- C:\Windows\SYSTEM32\wscript.exe
  wscript C:\Users\Admin\utwffhvmnj.js
  2⤵
  - Checks computer location settings
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:888
- - C:\Windows\regedit.exe
    "regedit.exe" "C:\Users\Admin\AppData\Local\Temp\ebgeaegdbdecaedfebace.reg"
    3⤵
    - Runs .reg file with regedit
    PID:4904
- - 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\qvclpqlzeh.txt"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4192
  - - C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\qvclpqlzeh.txt"
      4⤵
      Drops startup file
      Loads dropped DLL
      Adds Run key to start application
      Suspicious use of WriteProcessMemory
      PID:764
    - - C:\Windows\SYSTEM32\cmd.exe
        
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\qvclpqlzeh.txt"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:4232
      - C:\Windows\system32\schtasks.exe
        
        schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\qvclpqlzeh.txt"
        6⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:1204
    - - 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\qvclpqlzeh.txt"
        5⤵
        Loads dropped DLL
        Suspicious use of WriteProcessMemory
        
        PID:2828
      - 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:948

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

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
46B

MD5
da42441b6cdd63be0f35027bd5d306c9

SHA1
98183d944a9388f8224ee862cb9800a873e6611a

SHA256
3339af4eb1c527a349bf0a8537684b36db1dd6f908f1ef99d749e19a3744ce84

SHA512
11d951aaf940748bb5405950d6877a4868f5f5cfb7ff3ec690dcc1a256a234f84c13c74d16533b19ab8f0cb02ebd1cf8b70144d7e19c51220bbea75fdda5a59c

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

Filesize
46B

MD5
e267ba7d8dbe1d98c474b40034531187

SHA1
938dc573e6b7fce596881106fcab194932025873

SHA256
9e470d4e83536c6b3baa7f7abbdeddc1eefabb30d8e81aed3c9d42873c78d6c5

SHA512
69c7b28e708051b4e2c7376ccfc9c7e8d9f0f0de7a8577cfeee2e4626f6e92ac20ca7c9dc811551da6c2842a09677d150bd9119460688a859bd2fceeaa0458a6

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

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

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\jna5380674008643637428.dll

Filesize
241KB

MD5
e02979ecd43bcc9061eb2b494ab5af50

SHA1
3122ac0e751660f646c73b10c4f79685aa65c545

SHA256
a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

SHA512
1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2636447293-1148739154-93880854-1000\83aa4cc77f591dfc2374580bbd95f6ba_1d0c136d-d77c-4455-9382-3336e2df950b

Filesize
45B

MD5
c8366ae350e7019aefc9d1e6e6a498c6

SHA1
5731d8a3e6568a5f2dfbbc87e3db9637df280b61

SHA256
11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

SHA512
33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

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

Filesize
91KB

MD5
6bf6805ce69e195155646d86e8f9d79f

SHA1
81364da6cad1a1b22d00542f1d6066a05c05bcfe

SHA256
e6bc1311af74b649c4ee6e54de5eed79dee7ece5a62d4e20d28114330707b1d1

SHA512
38ba3e3692c205ef2aa83093149153805d6273015587e8010d7c1beff546f8495b25cd42b40be0adf01f3abd698082e564a10aa717a5499865dc99411b9589aa

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
C:\Users\Admin\utwffhvmnj.js

Filesize
723KB

MD5
59d033d20d97c0391c1c7297e0e73c4d

SHA1
34a0944169c6b1c18c82b4891ba5c146aae960ea

SHA256
d90a7eeef8f8dd6a26dbe4224663487fb221759002ebc5a79cd7e0a7cc25ecd2

SHA512
efbfa4a97b73f62f15b186f9f464ccd9be9569a003e127c170dcb5a90cf3b2563dffbf3b85a26c043a9d775f8b7a80cc2c9605dc2bfe983f8f0b7808db988f66

Download Submit
memory/764-150-0x000001C28A570000-0x000001C28A571000-memory.dmp

Filesize
4KB

Download
memory/764-134-0x000001C28A570000-0x000001C28A571000-memory.dmp

Filesize
4KB

Download
memory/948-221-0x0000018E46920000-0x0000018E46921000-memory.dmp

Filesize
4KB

Download
memory/2828-171-0x000001EE1B1E0000-0x000001EE1B1E1000-memory.dmp

Filesize
4KB

Download
memory/2844-2-0x00007FF92E5E0000-0x00007FF92E8A9000-memory.dmp

Filesize
2.8MB

Download
memory/2844-15-0x00007FF92E5E0000-0x00007FF92E8A9000-memory.dmp

Filesize
2.8MB

Download
memory/2844-13-0x000001FEE6980000-0x000001FEE6981000-memory.dmp

Filesize
4KB

Download
memory/4192-102-0x000002C318970000-0x000002C318971000-memory.dmp

Filesize
4KB

Download
memory/4192-86-0x000002C318970000-0x000002C318971000-memory.dmp

Filesize
4KB

Download
memory/4192-81-0x000002C318970000-0x000002C318971000-memory.dmp

Filesize
4KB

Download
memory/4192-76-0x000002C318970000-0x000002C318971000-memory.dmp

Filesize
4KB

Download
memory/4192-57-0x000002C318970000-0x000002C318971000-memory.dmp

Filesize
4KB

Download
memory/4192-37-0x000002C318970000-0x000002C318971000-memory.dmp

Filesize
4KB

Download