strrat | de1522a546abbff8b5cdde813b89e754ab0da6894e25bba0243a7a79e26a99d5

General

Target

SB COPY6827366180.PDF.jar
Size

40KB
MD5

0ec695117cb3bf0f1a8cef9a77f7675a
SHA1

e1152ed31dad5535bbeb5b63d61491d5fadd4787
SHA256

243a5315c031347617620bb5c8b694b3308932530519abc04e00c7c4fd7f7c62
SHA512

b9b27c10a0363fc38a219e8c9b795e284003e94b5851c30e30907b766bba88aa2e81701edd222461a5379a4daca0f094527f2fdca3da132aafede02d27bc8bf7
SSDEEP

768:qzXFN70ZIv326vOAZT1S0dNMAkuyC9iS7hKouufPN7c:qzXj7eYNJkchvN4

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\SB COPY6827366180.PDF.jar java.exe
Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

2960 icacls.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SB COPY6827366180.PDF.jar	java.exe

pid	process
2960	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-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SB COPY6827366180.PDF = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\SB COPY6827366180.PDF.jar\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SB COPY6827366180.PDF = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\SB COPY6827366180.PDF.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

1480 schtasks.exe

pid	process
1480	schtasks.exe

Modifies registry class 2 IoCs

Processes:

OpenWith.exeOpenWith.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000_Classes\Local Settings	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000_Classes\Local Settings	OpenWith.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

OpenWith.exeOpenWith.exe

pid process

2172 OpenWith.exe
812 OpenWith.exe

pid	process
2172	OpenWith.exe
812	OpenWith.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

java.execmd.exe

description	pid	process	target process
PID 3952 wrote to memory of 2960	3952	java.exe	icacls.exe
PID 3952 wrote to memory of 2960	3952	java.exe	icacls.exe
PID 3952 wrote to memory of 1964	3952	java.exe	cmd.exe
PID 3952 wrote to memory of 1964	3952	java.exe	cmd.exe
PID 3952 wrote to memory of 4224	3952	java.exe	java.exe
PID 3952 wrote to memory of 4224	3952	java.exe	java.exe
PID 1964 wrote to memory of 1480	1964	cmd.exe	schtasks.exe
PID 1964 wrote to memory of 1480	1964	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\SB COPY6827366180.PDF.jar"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3952

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:2960

C:\Windows\SYSTEM32\cmd.exe
cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\SB COPY6827366180.PDF.jar"
2⤵
- Suspicious use of WriteProcessMemory
PID:1964

C:\Windows\system32\schtasks.exe
schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\SB COPY6827366180.PDF.jar"
3⤵
- Creates scheduled task(s)
PID:1480

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\SB COPY6827366180.PDF.jar"
2⤵
PID:4224

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:2172

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:812

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\SB COPY6827366180.PDF.jar
Filesize
40KB

MD5
0ec695117cb3bf0f1a8cef9a77f7675a

SHA1
e1152ed31dad5535bbeb5b63d61491d5fadd4787

SHA256
243a5315c031347617620bb5c8b694b3308932530519abc04e00c7c4fd7f7c62

SHA512
b9b27c10a0363fc38a219e8c9b795e284003e94b5851c30e30907b766bba88aa2e81701edd222461a5379a4daca0f094527f2fdca3da132aafede02d27bc8bf7

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

MD5
f119d6bd80e1a67889270358b2e9d278

SHA1
02b08e41e88517d22f583b7b22dde588d07f96fe

SHA256
de6abce2bb8f244f35e3a8b65044ff15448da3dee74d09831f731c554301643a

SHA512
c35a1e04df9e33fea29bfd77297703657c8525e0a48672a283c026d8f10f981a84c8a9ab117fa6f515bf5605868c2879e6668d5e1a90208cec7a9f14989f1f48

Download Submit
memory/3952-35-0x00000185A4F30000-0x00000185A5F30000-memory.dmp

Filesize
16.0MB

Download
memory/3952-23-0x00000185A4F30000-0x00000185A5F30000-memory.dmp

Filesize
16.0MB

Download
memory/3952-28-0x00000185A4F30000-0x00000185A5F30000-memory.dmp

Filesize
16.0MB

Download
memory/3952-12-0x00000185A36D0000-0x00000185A36D1000-memory.dmp

Filesize
4KB

Download
memory/3952-73-0x00000185A4F30000-0x00000185A5F30000-memory.dmp

Filesize
16.0MB

Download
memory/3952-39-0x00000185A51B0000-0x00000185A51C0000-memory.dmp

Filesize
64KB

Download
memory/3952-41-0x00000185A51C0000-0x00000185A51D0000-memory.dmp

Filesize
64KB

Download
memory/3952-43-0x00000185A4F30000-0x00000185A5F30000-memory.dmp

Filesize
16.0MB

Download
memory/3952-44-0x00000185A5220000-0x00000185A5230000-memory.dmp

Filesize
64KB

Download
memory/3952-45-0x00000185A5230000-0x00000185A5240000-memory.dmp

Filesize
64KB

Download
memory/3952-46-0x00000185A5200000-0x00000185A5210000-memory.dmp

Filesize
64KB

Download
memory/3952-47-0x00000185A5210000-0x00000185A5220000-memory.dmp

Filesize
64KB

Download
memory/3952-2-0x00000185A4F30000-0x00000185A5F30000-memory.dmp

Filesize
16.0MB

Download
memory/4224-56-0x0000017240550000-0x0000017241550000-memory.dmp

Filesize
16.0MB

Download
memory/4224-66-0x0000017240550000-0x0000017241550000-memory.dmp

Filesize
16.0MB

Download
memory/4224-69-0x0000017240550000-0x0000017241550000-memory.dmp

Filesize
16.0MB

Download
memory/4224-71-0x0000017240550000-0x0000017241550000-memory.dmp

Filesize
16.0MB

Download
memory/4224-72-0x0000017240550000-0x0000017241550000-memory.dmp

Filesize
16.0MB

Download
memory/4224-57-0x0000017240530000-0x0000017240531000-memory.dmp

Filesize
4KB

Download
memory/4224-74-0x0000017240550000-0x0000017241550000-memory.dmp

Filesize
16.0MB

Download
memory/4224-75-0x0000017240550000-0x0000017241550000-memory.dmp

Filesize
16.0MB

Download
memory/4224-76-0x0000017240550000-0x0000017241550000-memory.dmp

Filesize
16.0MB

Download
memory/4224-77-0x0000017240550000-0x0000017241550000-memory.dmp

Filesize
16.0MB

Download
memory/4224-78-0x0000017240550000-0x0000017241550000-memory.dmp

Filesize
16.0MB

Download
memory/4224-80-0x0000017240550000-0x0000017241550000-memory.dmp

Filesize
16.0MB

Download
memory/4224-81-0x0000017240550000-0x0000017241550000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads