strrat | 1685159a8e85fc5ee4be928aef1b5950500043152a1f96a7eed133a56b008921

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
17-03-2023 07:13

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General

Target

9b900a34a52b2a9d16b777da88308c34dbddd6df39baa3d8aeee59edb2535838.js
Size

363KB
MD5

1fa02948cc7fb485b2a599a5ed89ef34
SHA1

98737df996354ccfb4524b2e9df55f306f578a31
SHA256

9b900a34a52b2a9d16b777da88308c34dbddd6df39baa3d8aeee59edb2535838
SHA512

8e223e1310ef54a044f4b9e24d5654f5c1544ec5136a957ac1864b91ecaafab6d43f10e90b1a24e8d7451a700cf796707376d56c05679d1a3e55f35f43d0e435
SSDEEP

6144:GQBvd8uQFt6/MbvrIRr8xqhSYWZ3uh8Df9FPZtrnxj2roXmOfH7ojvVfmkg2jDk:NxyuQFt6/KIWJuh8nkOv7ehg

Score

10^/10

strrat 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-1-5-21-144354903-2550862337-1367551827-1000\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\npfrp.txt	java.exe

Loads dropped DLL 1 IoCs

pid	Process
4780	java.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\npfrp = "\"C:\\Users\\Admin\\AppData\\Roaming\\npfrp.txt\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\npfrp = "\"C:\\Users\\Admin\\AppData\\Roaming\\npfrp.txt\""	java.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
3100	schtasks.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4336 wrote to memory of 2008	4336	wscript.exe	86
PID 4336 wrote to memory of 2008	4336	wscript.exe	86
PID 2008 wrote to memory of 1616	2008	javaw.exe	95
PID 2008 wrote to memory of 1616	2008	javaw.exe	95
PID 1616 wrote to memory of 2676	1616	java.exe	99
PID 1616 wrote to memory of 2676	1616	java.exe	99
PID 1616 wrote to memory of 4780	1616	java.exe	100
PID 1616 wrote to memory of 4780	1616	java.exe	100
PID 2676 wrote to memory of 3100	2676	cmd.exe	103
PID 2676 wrote to memory of 3100	2676	cmd.exe	103

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\9b900a34a52b2a9d16b777da88308c34dbddd6df39baa3d8aeee59edb2535838.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4336
- C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe
  "C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\npfrp.txt"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2008
- - C:\Program Files\Java\jre1.8.0_66\bin\java.exe
    "C:\Program Files\Java\jre1.8.0_66\bin\java.exe" -jar "C:\Users\Admin\npfrp.txt"
    3⤵
    - Drops startup file
    - Adds Run key to start application
    - Suspicious use of WriteProcessMemory
    PID:1616
  - - C:\Windows\SYSTEM32\cmd.exe
      cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\npfrp.txt"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2676
    - - C:\Windows\system32\schtasks.exe
        
        schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\npfrp.txt"
        5⤵
        Creates scheduled task(s)
        
        PID:3100
  - - C:\Program Files\Java\jre1.8.0_66\bin\java.exe
      "C:\Program Files\Java\jre1.8.0_66\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\npfrp.txt"
      4⤵
      Loads dropped DLL
      PID:4780

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

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

C:\Users\Admin\.oracle_jre_usage\90737d32e3aba4b.timestamp

Filesize
50B

MD5
2a41302e1e461068196b29548395f32a

SHA1
f6ce02ba7ec1bdd2622cd57b500a1f328c7d8981

SHA256
8c314ade46b4fdd0ccc1e4bf12a18ac6f56ba397c76c3e75f8bf35da3d8a3a2a

SHA512
a79af84f36a3a9af8ad5ebd26811132a52dea6e28a6e63304703abf060904175327921794db4203ab2f9a6fd52b777cd5ac8d08fd4d62fbcc9d017e0d71dbc9d

Download Submit
C:\Users\Admin\.oracle_jre_usage\90737d32e3aba4b.timestamp

Filesize
50B

MD5
e5dff39bf8475d1a3893e58697317a86

SHA1
fb9ba207b0e99e6447c7b2f98597af55788b5ca4

SHA256
3ff959d3e0b515d38cd631cbed0ab66a8f51a2c48f9e80084018b254c0918de7

SHA512
d1a9ab7e1ed424235a9ebe92a4f1494920482a24899a9c3b3dca0c5e53888133f5d15fd549b4c56b7650cc181fba7ead9ed606699e28b19bcce010eb9c0af6cb

Download Submit
C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna4541690317482855140.dll

Filesize
241KB

MD5
e02979ecd43bcc9061eb2b494ab5af50

SHA1
3122ac0e751660f646c73b10c4f79685aa65c545

SHA256
a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

SHA512
1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-144354903-2550862337-1367551827-1000\83aa4cc77f591dfc2374580bbd95f6ba_76cff8be-8f86-4613-9a47-5d5870acb67c

Filesize
45B

MD5
c8366ae350e7019aefc9d1e6e6a498c6

SHA1
5731d8a3e6568a5f2dfbbc87e3db9637df280b61

SHA256
11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

SHA512
33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\npfrp.txt

Filesize
164KB

MD5
3834513023ec311a08f09b81a3b13fb8

SHA1
cb2faf30e64be67532aa01a59480052a2438ded6

SHA256
7b43f6ba187bf62f37f43374ef60808601cd187f5796e97458d15954f50c619b

SHA512
7fbf3b5b180fc0427cd641810806ebbb0e6c8fb710faf15bbf579af9fa668ed8257ea011e27b73cf3921f0714c0ad82d1be3eed3729319396017592d5f6df859

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

Filesize
1.4MB

MD5
acfb5b5fd9ee10bf69497792fd469f85

SHA1
0e0845217c4907822403912ad6828d8e0b256208

SHA256
b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e

SHA512
e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa

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

Filesize
2.6MB

MD5
2f4a99c2758e72ee2b59a73586a2322f

SHA1
af38e7c4d0fc73c23ecd785443705bfdee5b90bf

SHA256
24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5

SHA512
b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494

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

Filesize
4.1MB

MD5
b33387e15ab150a7bf560abdc73c3bec

SHA1
66b8075784131f578ef893fd7674273f709b9a4c

SHA256
2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491

SHA512
25cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279

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

Filesize
772KB

MD5
e1aa38a1e78a76a6de73efae136cdb3a

SHA1
c463da71871f780b2e2e5dba115d43953b537daf

SHA256
2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609

SHA512
fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d

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

Filesize
164KB

MD5
3834513023ec311a08f09b81a3b13fb8

SHA1
cb2faf30e64be67532aa01a59480052a2438ded6

SHA256
7b43f6ba187bf62f37f43374ef60808601cd187f5796e97458d15954f50c619b

SHA512
7fbf3b5b180fc0427cd641810806ebbb0e6c8fb710faf15bbf579af9fa668ed8257ea011e27b73cf3921f0714c0ad82d1be3eed3729319396017592d5f6df859

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

Filesize
164KB

MD5
3834513023ec311a08f09b81a3b13fb8

SHA1
cb2faf30e64be67532aa01a59480052a2438ded6

SHA256
7b43f6ba187bf62f37f43374ef60808601cd187f5796e97458d15954f50c619b

SHA512
7fbf3b5b180fc0427cd641810806ebbb0e6c8fb710faf15bbf579af9fa668ed8257ea011e27b73cf3921f0714c0ad82d1be3eed3729319396017592d5f6df859

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\npfrp.txt

Filesize
164KB

MD5
3834513023ec311a08f09b81a3b13fb8

SHA1
cb2faf30e64be67532aa01a59480052a2438ded6

SHA256
7b43f6ba187bf62f37f43374ef60808601cd187f5796e97458d15954f50c619b

SHA512
7fbf3b5b180fc0427cd641810806ebbb0e6c8fb710faf15bbf579af9fa668ed8257ea011e27b73cf3921f0714c0ad82d1be3eed3729319396017592d5f6df859

Download Submit
memory/1616-245-0x0000000002E90000-0x0000000002E91000-memory.dmp

Filesize
4KB

Download
memory/2008-185-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download
memory/2008-192-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download
memory/2008-174-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download
memory/2008-211-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download
memory/2008-210-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download
memory/2008-200-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download
memory/2008-199-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download
memory/2008-183-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download
memory/2008-164-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download
memory/2008-184-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download
memory/2008-181-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download
memory/2008-179-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download
memory/2008-175-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download
memory/2008-145-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download
memory/4780-278-0x0000000000730000-0x0000000000731000-memory.dmp

Filesize
4KB

Download
memory/4780-282-0x0000000000730000-0x0000000000731000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads