strrat | 3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d

Analysis

max time kernel
149s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
08-06-2024 01:08

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General

Target

3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar
Size

481KB
MD5

3a8408bd24e0c03eff82e67943d10f23
SHA1

15905ce2e7170b6dd2110d793820665a5d7ea1eb
SHA256

3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d
SHA512

46044d9727ae1ee10dd7f0aa108b3717cb2dccd995d505af115f35edb45b649a47533ccabd50d2a2c44d90a87ababc231e2acc01672dfe35f02eb7b739653d20
SSDEEP

12288:6tlWvKeQSPEUpTroRFoRb5h7BC2JBMct62xKcO:6fWvlvXoEtMM62S

Score

10^/10

strrat discovery persistence stealer trojan

Malware Config

Signatures

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

Drops startup file 1 IoCs

Processes:

java.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar	java.exe

Loads dropped DLL 1 IoCs

Processes:

java.exe

pid	Process
4880	java.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

Processes:

icacls.exe

pid	Process
4344	icacls.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

java.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar\""	java.exe

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/Job

T1053

Processes:

schtasks.exe

pid	Process
2408	schtasks.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

java.exejava.execmd.exe

description	pid	Process	procid_target
PID 1660 wrote to memory of 4344	1660	java.exe	83
PID 1660 wrote to memory of 4344	1660	java.exe	83
PID 1660 wrote to memory of 2164	1660	java.exe	91
PID 1660 wrote to memory of 2164	1660	java.exe	91
PID 2164 wrote to memory of 1564	2164	java.exe	94
PID 2164 wrote to memory of 1564	2164	java.exe	94
PID 2164 wrote to memory of 4880	2164	java.exe	95
PID 2164 wrote to memory of 4880	2164	java.exe	95
PID 1564 wrote to memory of 2408	1564	cmd.exe	98
PID 1564 wrote to memory of 2408	1564	cmd.exe	98

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\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar
1⤵
- Suspicious use of WriteProcessMemory
PID:1660
- 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:4344
- C:\Program Files\Java\jre-1.8\bin\java.exe
  "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2164
- - C:\Windows\SYSTEM32\cmd.exe
    cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1564
  - - C:\Windows\system32\schtasks.exe
      schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar"
      4⤵
      Creates scheduled task(s)
      PID:2408
- - 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\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar"
    3⤵
    - Loads dropped DLL
    PID:4880

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

File and Directory Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
46B

MD5
53c142af5d4df998ef795e170c6798a0

SHA1
458f23f9b3dced286bf6332590a1c7d1dba9bb84

SHA256
f3583430726de1dc74ff0d1d6c323a41e22d00c0dc742cc92c56d26543d1e630

SHA512
bca4a363fe9eb17870272d2891fa98d680e7e96b58adf40862ca8fd447ce5b52fc3290b16ff2c711a6ecacbc7983aa27b90c593dd6a77dea4bd0355cddbfea0e

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

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
C:\Users\Admin\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar

Filesize
481KB

MD5
3a8408bd24e0c03eff82e67943d10f23

SHA1
15905ce2e7170b6dd2110d793820665a5d7ea1eb

SHA256
3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d

SHA512
46044d9727ae1ee10dd7f0aa108b3717cb2dccd995d505af115f35edb45b649a47533ccabd50d2a2c44d90a87ababc231e2acc01672dfe35f02eb7b739653d20

Download Submit
C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna4791461344829309263.dll

Filesize
241KB

MD5
e02979ecd43bcc9061eb2b494ab5af50

SHA1
3122ac0e751660f646c73b10c4f79685aa65c545

SHA256
a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

SHA512
1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1337824034-2731376981-3755436523-1000\83aa4cc77f591dfc2374580bbd95f6ba_6833eb7b-8d4b-4cdd-9502-9bbf7fc1cf9f

Filesize
45B

MD5
c8366ae350e7019aefc9d1e6e6a498c6

SHA1
5731d8a3e6568a5f2dfbbc87e3db9637df280b61

SHA256
11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

SHA512
33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

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/1660-99-0x0000022634140000-0x0000022634150000-memory.dmp

Filesize
64KB

Download
memory/1660-191-0x00000226323C0000-0x00000226323C1000-memory.dmp

Filesize
4KB

Download
memory/1660-23-0x0000022634080000-0x0000022634090000-memory.dmp

Filesize
64KB

Download
memory/1660-25-0x0000022634090000-0x00000226340A0000-memory.dmp

Filesize
64KB

Download
memory/1660-29-0x00000226340B0000-0x00000226340C0000-memory.dmp

Filesize
64KB

Download
memory/1660-28-0x00000226340A0000-0x00000226340B0000-memory.dmp

Filesize
64KB

Download
memory/1660-34-0x00000226323C0000-0x00000226323C1000-memory.dmp

Filesize
4KB

Download
memory/1660-40-0x0000022634100000-0x0000022634110000-memory.dmp

Filesize
64KB

Download
memory/1660-39-0x00000226340F0000-0x0000022634100000-memory.dmp

Filesize
64KB

Download
memory/1660-43-0x0000022634110000-0x0000022634120000-memory.dmp

Filesize
64KB

Download
memory/1660-38-0x00000226340E0000-0x00000226340F0000-memory.dmp

Filesize
64KB

Download
memory/1660-37-0x00000226340C0000-0x00000226340D0000-memory.dmp

Filesize
64KB

Download
memory/1660-36-0x00000226340D0000-0x00000226340E0000-memory.dmp

Filesize
64KB

Download
memory/1660-45-0x0000022634120000-0x0000022634130000-memory.dmp

Filesize
64KB

Download
memory/1660-44-0x0000022633DC0000-0x0000022634030000-memory.dmp

Filesize
2.4MB

Download
memory/1660-48-0x0000022634030000-0x0000022634040000-memory.dmp

Filesize
64KB

Download
memory/1660-50-0x0000022634140000-0x0000022634150000-memory.dmp

Filesize
64KB

Download
memory/1660-49-0x0000022634130000-0x0000022634140000-memory.dmp

Filesize
64KB

Download
memory/1660-61-0x0000022634160000-0x0000022634170000-memory.dmp

Filesize
64KB

Download
memory/1660-60-0x0000022634060000-0x0000022634070000-memory.dmp

Filesize
64KB

Download
memory/1660-59-0x0000022634150000-0x0000022634160000-memory.dmp

Filesize
64KB

Download
memory/1660-57-0x0000022634040000-0x0000022634050000-memory.dmp

Filesize
64KB

Download
memory/1660-58-0x0000022634050000-0x0000022634060000-memory.dmp

Filesize
64KB

Download
memory/1660-67-0x0000022634180000-0x0000022634190000-memory.dmp

Filesize
64KB

Download
memory/1660-70-0x0000022634090000-0x00000226340A0000-memory.dmp

Filesize
64KB

Download
memory/1660-69-0x0000022634080000-0x0000022634090000-memory.dmp

Filesize
64KB

Download
memory/1660-72-0x00000226341A0000-0x00000226341B0000-memory.dmp

Filesize
64KB

Download
memory/1660-71-0x0000022634190000-0x00000226341A0000-memory.dmp

Filesize
64KB

Download
memory/1660-66-0x0000022634170000-0x0000022634180000-memory.dmp

Filesize
64KB

Download
memory/1660-81-0x00000226340F0000-0x0000022634100000-memory.dmp

Filesize
64KB

Download
memory/1660-87-0x00000226341E0000-0x00000226341F0000-memory.dmp

Filesize
64KB

Download
memory/1660-86-0x0000022634100000-0x0000022634110000-memory.dmp

Filesize
64KB

Download
memory/1660-85-0x00000226340E0000-0x00000226340F0000-memory.dmp

Filesize
64KB

Download
memory/1660-84-0x00000226340C0000-0x00000226340D0000-memory.dmp

Filesize
64KB

Download
memory/1660-83-0x00000226340D0000-0x00000226340E0000-memory.dmp

Filesize
64KB

Download
memory/1660-80-0x00000226341D0000-0x00000226341E0000-memory.dmp

Filesize
64KB

Download
memory/1660-91-0x00000226341F0000-0x0000022634200000-memory.dmp

Filesize
64KB

Download
memory/1660-90-0x0000022634110000-0x0000022634120000-memory.dmp

Filesize
64KB

Download
memory/1660-79-0x00000226340B0000-0x00000226340C0000-memory.dmp

Filesize
64KB

Download
memory/1660-78-0x00000226340A0000-0x00000226340B0000-memory.dmp

Filesize
64KB

Download
memory/1660-95-0x0000022634200000-0x0000022634210000-memory.dmp

Filesize
64KB

Download
memory/1660-94-0x0000022634120000-0x0000022634130000-memory.dmp

Filesize
64KB

Download
memory/1660-77-0x00000226341C0000-0x00000226341D0000-memory.dmp

Filesize
64KB

Download
memory/1660-76-0x00000226341B0000-0x00000226341C0000-memory.dmp

Filesize
64KB

Download
memory/1660-65-0x0000022634070000-0x0000022634080000-memory.dmp

Filesize
64KB

Download
memory/1660-97-0x00000226323C0000-0x00000226323C1000-memory.dmp

Filesize
4KB

Download
memory/1660-100-0x0000022634210000-0x0000022634220000-memory.dmp

Filesize
64KB

Download
memory/1660-121-0x0000022634270000-0x0000022634280000-memory.dmp

Filesize
64KB

Download
memory/1660-98-0x0000022634130000-0x0000022634140000-memory.dmp

Filesize
64KB

Download
memory/1660-103-0x0000022634150000-0x0000022634160000-memory.dmp

Filesize
64KB

Download
memory/1660-104-0x0000022634220000-0x0000022634230000-memory.dmp

Filesize
64KB

Download
memory/1660-117-0x0000022634260000-0x0000022634270000-memory.dmp

Filesize
64KB

Download
memory/1660-19-0x0000022634060000-0x0000022634070000-memory.dmp

Filesize
64KB

Download
memory/1660-22-0x0000022634070000-0x0000022634080000-memory.dmp

Filesize
64KB

Download
memory/1660-176-0x0000022634350000-0x0000022634360000-memory.dmp

Filesize
64KB

Download
memory/1660-132-0x00000226323C0000-0x00000226323C1000-memory.dmp

Filesize
4KB

Download
memory/1660-138-0x00000226342B0000-0x00000226342C0000-memory.dmp

Filesize
64KB

Download
memory/1660-137-0x00000226341D0000-0x00000226341E0000-memory.dmp

Filesize
64KB

Download
memory/1660-135-0x00000226323C0000-0x00000226323C1000-memory.dmp

Filesize
4KB

Download
memory/1660-127-0x0000022634280000-0x0000022634290000-memory.dmp

Filesize
64KB

Download
memory/1660-126-0x00000226341C0000-0x00000226341D0000-memory.dmp

Filesize
64KB

Download
memory/1660-125-0x00000226341B0000-0x00000226341C0000-memory.dmp

Filesize
64KB

Download
memory/1660-120-0x00000226341A0000-0x00000226341B0000-memory.dmp

Filesize
64KB

Download
memory/1660-119-0x0000022634190000-0x00000226341A0000-memory.dmp

Filesize
64KB

Download
memory/1660-115-0x0000022634170000-0x0000022634180000-memory.dmp

Filesize
64KB

Download
memory/1660-112-0x0000022634250000-0x0000022634260000-memory.dmp

Filesize
64KB

Download
memory/1660-111-0x0000022634240000-0x0000022634250000-memory.dmp

Filesize
64KB

Download
memory/1660-110-0x0000022634230000-0x0000022634240000-memory.dmp

Filesize
64KB

Download
memory/1660-109-0x0000022634160000-0x0000022634170000-memory.dmp

Filesize
64KB

Download
memory/1660-141-0x00000226342C0000-0x00000226342D0000-memory.dmp

Filesize
64KB

Download
memory/1660-140-0x00000226341E0000-0x00000226341F0000-memory.dmp

Filesize
64KB

Download
memory/1660-116-0x0000022634180000-0x0000022634190000-memory.dmp

Filesize
64KB

Download
memory/1660-143-0x00000226342D0000-0x00000226342E0000-memory.dmp

Filesize
64KB

Download
memory/1660-142-0x00000226341F0000-0x0000022634200000-memory.dmp

Filesize
64KB

Download
memory/1660-146-0x00000226342E0000-0x00000226342F0000-memory.dmp

Filesize
64KB

Download
memory/1660-145-0x0000022634200000-0x0000022634210000-memory.dmp

Filesize
64KB

Download
memory/1660-148-0x0000022634210000-0x0000022634220000-memory.dmp

Filesize
64KB

Download
memory/1660-149-0x00000226342F0000-0x0000022634300000-memory.dmp

Filesize
64KB

Download
memory/1660-151-0x0000022634220000-0x0000022634230000-memory.dmp

Filesize
64KB

Download
memory/1660-152-0x0000022634250000-0x0000022634260000-memory.dmp

Filesize
64KB

Download
memory/1660-153-0x0000022634300000-0x0000022634310000-memory.dmp

Filesize
64KB

Download
memory/1660-158-0x0000022634310000-0x0000022634320000-memory.dmp

Filesize
64KB

Download
memory/1660-157-0x0000022634260000-0x0000022634270000-memory.dmp

Filesize
64KB

Download
memory/1660-156-0x0000022634240000-0x0000022634250000-memory.dmp

Filesize
64KB

Download
memory/1660-155-0x0000022634230000-0x0000022634240000-memory.dmp

Filesize
64KB

Download
memory/1660-160-0x0000022634320000-0x0000022634330000-memory.dmp

Filesize
64KB

Download
memory/1660-161-0x00000226323C0000-0x00000226323C1000-memory.dmp

Filesize
4KB

Download
memory/1660-173-0x0000022634340000-0x0000022634350000-memory.dmp

Filesize
64KB

Download
memory/1660-172-0x00000226342A0000-0x00000226342B0000-memory.dmp

Filesize
64KB

Download
memory/1660-171-0x0000022634290000-0x00000226342A0000-memory.dmp

Filesize
64KB

Download
memory/1660-170-0x0000022634280000-0x0000022634290000-memory.dmp

Filesize
64KB

Download
memory/1660-168-0x0000022634330000-0x0000022634340000-memory.dmp

Filesize
64KB

Download
memory/1660-167-0x0000022634270000-0x0000022634280000-memory.dmp

Filesize
64KB

Download
memory/1660-128-0x0000022634290000-0x00000226342A0000-memory.dmp

Filesize
64KB

Download
memory/1660-175-0x00000226342B0000-0x00000226342C0000-memory.dmp

Filesize
64KB

Download
memory/1660-17-0x0000022634050000-0x0000022634060000-memory.dmp

Filesize
64KB

Download
memory/1660-183-0x00000226323C0000-0x00000226323C1000-memory.dmp

Filesize
4KB

Download
memory/1660-185-0x00000226342C0000-0x00000226342D0000-memory.dmp

Filesize
64KB

Download
memory/1660-189-0x00000226342D0000-0x00000226342E0000-memory.dmp

Filesize
64KB

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memory/1660-129-0x00000226342A0000-0x00000226342B0000-memory.dmp

Filesize
64KB

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memory/1660-2-0x0000022633DC0000-0x0000022634030000-memory.dmp

Filesize
2.4MB

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memory/1660-16-0x0000022634040000-0x0000022634050000-memory.dmp

Filesize
64KB

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memory/1660-14-0x0000022634030000-0x0000022634040000-memory.dmp

Filesize
64KB

Download
memory/2164-313-0x000001ED5BDB0000-0x000001ED5BDB1000-memory.dmp

Filesize
4KB

Download
memory/4880-386-0x0000026140C00000-0x0000026140C01000-memory.dmp

Filesize
4KB

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