strrat | 2058a9ac6ad8fb18ce3af7a5e51c92a64f62cdc7d556665574cedc9b7658d05f

Analysis

max time kernel
1195s
max time network
1200s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
02-03-2023 04:56

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General

Target

PO43980932778422W.js
Size

449KB
MD5

64d99add9ec25f877a2f3197f1092fe3
SHA1

dec385e86f09af747c9d39f0e2df2ce3cff7e3b7
SHA256

8e1dd9c8f5991221d382f24e7aa872382602c042e611867c1996b9beb18ccc5b
SHA512

6b6497d41b1a1b9c3f74e14daa71e4de604903b27ee82effbfc7ac1fc73b70c4cd99138363a55f42104329b22905a982902f9ba1e9d702986fd66eec4a766707
SSDEEP

6144:GQz/n8bZMfDmPdx1OWvVw5AVhACTtnZFl/XZSARjqLTFyW3UefSYWOMau4+1oEeR:Nb9QxxvFHJZNXYfFHUXYGjU

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-1-5-21-1675742406-747946869-1029867430-1000\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\kogcvx.txt	java.exe

Loads dropped DLL 1 IoCs

pid	Process
4132	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-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kogcvx = "\"C:\\Users\\Admin\\AppData\\Roaming\\kogcvx.txt\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kogcvx = "\"C:\\Users\\Admin\\AppData\\Roaming\\kogcvx.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
1124	schtasks.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 2688	2776	wscript.exe	86
PID 2776 wrote to memory of 2688	2776	wscript.exe	86
PID 2688 wrote to memory of 4772	2688	javaw.exe	88
PID 2688 wrote to memory of 4772	2688	javaw.exe	88
PID 4772 wrote to memory of 748	4772	java.exe	92
PID 4772 wrote to memory of 748	4772	java.exe	92
PID 4772 wrote to memory of 4132	4772	java.exe	93
PID 4772 wrote to memory of 4132	4772	java.exe	93
PID 748 wrote to memory of 1124	748	cmd.exe	96
PID 748 wrote to memory of 1124	748	cmd.exe	96

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\PO43980932778422W.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2776
- 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\kogcvx.txt"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2688
- - 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\kogcvx.txt"
    3⤵
    - Drops startup file
    - Adds Run key to start application
    - Suspicious use of WriteProcessMemory
    PID:4772
  - - C:\Windows\SYSTEM32\cmd.exe
      cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\kogcvx.txt"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:748
    - - C:\Windows\system32\schtasks.exe
        
        schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\kogcvx.txt"
        5⤵
        Creates scheduled task(s)
        
        PID:1124
  - - 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\kogcvx.txt"
      4⤵
      Loads dropped DLL
      PID:4132

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
e5fb53f12f01d495874d55d4fdd99046

SHA1
d5c240fd1cfbf1cc229a5c9d3af5d4238ab8ed46

SHA256
e241ac2c67c1370bf2d45cc86bf031c3d8ffd110795891b50c9811311357f3a1

SHA512
98982a2801c13035c04036e65c4a00e4130a7d1c11cdca08d492711176973f20b7d5de37b97ee31b1ce842e97b7d7009a15fe67d422f06ae5a71ca0e93f66d35

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

Filesize
50B

MD5
72648ddd340100898bc20bf34dde95c7

SHA1
0f74ae0c38e891eb36346db764f84d73faf6d2b1

SHA256
35de814ff7ff658a2780b8f1c5297f21a72600529c25c8b5d1a143accc5cca69

SHA512
09ac920aa8d2c80fac36d371ed58e30b88f4e23b8e17a1e20e14662db6d37d62893373fe3df8b47547845210ec599340739c63e195fecef200f442698abd350c

Download Submit
C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna1170268849475712447.dll

Filesize
241KB

MD5
e02979ecd43bcc9061eb2b494ab5af50

SHA1
3122ac0e751660f646c73b10c4f79685aa65c545

SHA256
a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

SHA512
1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1675742406-747946869-1029867430-1000\83aa4cc77f591dfc2374580bbd95f6ba_8d6935fa-0795-4a6f-bfd9-e755f1917fa0

Filesize
45B

MD5
c8366ae350e7019aefc9d1e6e6a498c6

SHA1
5731d8a3e6568a5f2dfbbc87e3db9637df280b61

SHA256
11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

SHA512
33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

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

Filesize
209KB

MD5
fffb5b1071432af237104c8a053ab1fd

SHA1
8e6657865ebbc2b38ceeec5ab484c86814fc3391

SHA256
a6b234f45580921a7a7d4855db9577a1c5ec6fc1eca764876154129356e4adb2

SHA512
b1631300c429f009878efcc5c23176e5913d9447469d52569f3d869c175b9981e2d82ebb3e861cecdead70b1cacedde98c2e3f7a619c6cea89e3d25ae227d0fc

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

Filesize
209KB

MD5
fffb5b1071432af237104c8a053ab1fd

SHA1
8e6657865ebbc2b38ceeec5ab484c86814fc3391

SHA256
a6b234f45580921a7a7d4855db9577a1c5ec6fc1eca764876154129356e4adb2

SHA512
b1631300c429f009878efcc5c23176e5913d9447469d52569f3d869c175b9981e2d82ebb3e861cecdead70b1cacedde98c2e3f7a619c6cea89e3d25ae227d0fc

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

Filesize
209KB

MD5
fffb5b1071432af237104c8a053ab1fd

SHA1
8e6657865ebbc2b38ceeec5ab484c86814fc3391

SHA256
a6b234f45580921a7a7d4855db9577a1c5ec6fc1eca764876154129356e4adb2

SHA512
b1631300c429f009878efcc5c23176e5913d9447469d52569f3d869c175b9981e2d82ebb3e861cecdead70b1cacedde98c2e3f7a619c6cea89e3d25ae227d0fc

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\kogcvx.txt

Filesize
209KB

MD5
fffb5b1071432af237104c8a053ab1fd

SHA1
8e6657865ebbc2b38ceeec5ab484c86814fc3391

SHA256
a6b234f45580921a7a7d4855db9577a1c5ec6fc1eca764876154129356e4adb2

SHA512
b1631300c429f009878efcc5c23176e5913d9447469d52569f3d869c175b9981e2d82ebb3e861cecdead70b1cacedde98c2e3f7a619c6cea89e3d25ae227d0fc

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/2688-175-0x00000000014F0000-0x00000000014F1000-memory.dmp

Filesize
4KB

Download
memory/2688-187-0x00000000014F0000-0x00000000014F1000-memory.dmp

Filesize
4KB

Download
memory/2688-202-0x00000000014F0000-0x00000000014F1000-memory.dmp

Filesize
4KB

Download
memory/2688-145-0x00000000014F0000-0x00000000014F1000-memory.dmp

Filesize
4KB

Download
memory/2688-197-0x00000000014F0000-0x00000000014F1000-memory.dmp

Filesize
4KB

Download
memory/2688-189-0x00000000014F0000-0x00000000014F1000-memory.dmp

Filesize
4KB

Download
memory/2688-188-0x00000000014F0000-0x00000000014F1000-memory.dmp

Filesize
4KB

Download
memory/2688-163-0x00000000014F0000-0x00000000014F1000-memory.dmp

Filesize
4KB

Download
memory/2688-179-0x00000000014F0000-0x00000000014F1000-memory.dmp

Filesize
4KB

Download
memory/2688-206-0x00000000014F0000-0x00000000014F1000-memory.dmp

Filesize
4KB

Download
memory/4132-251-0x0000000001320000-0x0000000001321000-memory.dmp

Filesize
4KB

Download
memory/4132-261-0x0000000001320000-0x0000000001321000-memory.dmp

Filesize
4KB

Download
memory/4772-223-0x00000000010E0000-0x00000000010E1000-memory.dmp

Filesize
4KB

Download
memory/4772-234-0x00000000010E0000-0x00000000010E1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads