strrat | 361868581afd0fa1eaed8c46990eee5074342033dc26ace69eb0e5eb72876d43

General

Target

361868581afd0fa1eaed8c46990eee5074342033dc26ace69eb0e5eb72876d43.jar
Size

64KB
MD5

2dc3ec1f2b21887d14f66045a1bf312f
SHA1

ee559cc3e69ca0c429d13576e086e2dcba323332
SHA256

361868581afd0fa1eaed8c46990eee5074342033dc26ace69eb0e5eb72876d43
SHA512

d68443266a0e5ef08fcd72d8bf0cdd3d17914f57c6fbd37e0eaf648b4dff406c4c2e55a3b2daa6dbeddc9ad656971b3dbb0b635caff65d9d28c60ea986682812
SSDEEP

1536:S59vZVcVMHH45oJxm4UxtOPLpMy09xHrd3W4UB:SjZnHY5IctOPLpU04UB

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\361868581afd0fa1eaed8c46990eee5074342033dc26ace69eb0e5eb72876d43.jar	java.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

4592 icacls.exe

pid	process
4592	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-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\361868581afd0fa1eaed8c46990eee5074342033dc26ace69eb0e5eb72876d43 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\361868581afd0fa1eaed8c46990eee5074342033dc26ace69eb0e5eb72876d43.jar\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\361868581afd0fa1eaed8c46990eee5074342033dc26ace69eb0e5eb72876d43 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\361868581afd0fa1eaed8c46990eee5074342033dc26ace69eb0e5eb72876d43.jar\""	java.exe

Drops file in Program Files directory 12 IoCs

Processes:

java.exe

description	ioc	process
File opened for modification	C:\Program Files\Java\jre-1.8\bin\dll\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\jvm.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\ntdll.pdb	java.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\ntdll.pdb	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

64 schtasks.exe

pid	process
64	schtasks.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

java.execmd.exe

description	pid	process	target process
PID 532 wrote to memory of 4592	532	java.exe	icacls.exe
PID 532 wrote to memory of 4592	532	java.exe	icacls.exe
PID 532 wrote to memory of 4696	532	java.exe	cmd.exe
PID 532 wrote to memory of 4696	532	java.exe	cmd.exe
PID 532 wrote to memory of 4036	532	java.exe	java.exe
PID 532 wrote to memory of 4036	532	java.exe	java.exe
PID 4696 wrote to memory of 64	4696	cmd.exe	schtasks.exe
PID 4696 wrote to memory of 64	4696	cmd.exe	schtasks.exe

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\361868581afd0fa1eaed8c46990eee5074342033dc26ace69eb0e5eb72876d43.jar
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:532

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:4592

C:\Windows\SYSTEM32\cmd.exe
cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\361868581afd0fa1eaed8c46990eee5074342033dc26ace69eb0e5eb72876d43.jar"
2⤵
- Suspicious use of WriteProcessMemory
PID:4696

C:\Windows\system32\schtasks.exe
schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\361868581afd0fa1eaed8c46990eee5074342033dc26ace69eb0e5eb72876d43.jar"
3⤵
- Creates scheduled task(s)
PID:64

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\361868581afd0fa1eaed8c46990eee5074342033dc26ace69eb0e5eb72876d43.jar"
2⤵
- Drops file in Program Files directory
PID:4036

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

File and Directory Permissions Modification

1

T1222

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\361868581afd0fa1eaed8c46990eee5074342033dc26ace69eb0e5eb72876d43.jar
Filesize
64KB

MD5
2dc3ec1f2b21887d14f66045a1bf312f

SHA1
ee559cc3e69ca0c429d13576e086e2dcba323332

SHA256
361868581afd0fa1eaed8c46990eee5074342033dc26ace69eb0e5eb72876d43

SHA512
d68443266a0e5ef08fcd72d8bf0cdd3d17914f57c6fbd37e0eaf648b4dff406c4c2e55a3b2daa6dbeddc9ad656971b3dbb0b635caff65d9d28c60ea986682812

Download Submit
C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
Filesize
46B

MD5
80f368e7aa1baa451e803af0f634a01f

SHA1
0e4271fa36158fa95042612989405143068636fa

SHA256
fddadd2ecebf79fa6eb7ee54c70a556e38665c31aba0d73bd5a745403aefca3e

SHA512
f2bd8e3eb605306f2a73207d2ffcbceb2619129c9078cfd858ab81050301346b0c452ce4f24308e7b7ae414e73f588f4897ee059e0b633c077473205351643eb

Download Submit
memory/532-32-0x000001F000290000-0x000001F0002A0000-memory.dmp

Filesize
64KB

Download
memory/532-33-0x000001F0002B0000-0x000001F0002C0000-memory.dmp

Filesize
64KB

Download
memory/532-12-0x000001F07AFC0000-0x000001F07AFC1000-memory.dmp

Filesize
4KB

Download
memory/532-30-0x000001F07AFC0000-0x000001F07AFC1000-memory.dmp

Filesize
4KB

Download
memory/532-29-0x000001F000000000-0x000001F001000000-memory.dmp

Filesize
16.0MB

Download
memory/532-31-0x000001F000280000-0x000001F000290000-memory.dmp

Filesize
64KB

Download
memory/532-4-0x000001F000000000-0x000001F001000000-memory.dmp

Filesize
16.0MB

Download
memory/532-18-0x000001F000000000-0x000001F001000000-memory.dmp

Filesize
16.0MB

Download
memory/532-34-0x000001F0002C0000-0x000001F0002D0000-memory.dmp

Filesize
64KB

Download
memory/532-35-0x000001F0002D0000-0x000001F0002E0000-memory.dmp

Filesize
64KB

Download
memory/532-37-0x000001F0002F0000-0x000001F000300000-memory.dmp

Filesize
64KB

Download
memory/532-39-0x000001F000000000-0x000001F001000000-memory.dmp

Filesize
16.0MB

Download
memory/532-52-0x000001F000000000-0x000001F001000000-memory.dmp

Filesize
16.0MB

Download
memory/4036-43-0x000001FB40050000-0x000001FB41050000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads