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

1704 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
1704	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\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
Set value (str)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\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

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

4664 schtasks.exe

pid	process
4664	schtasks.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

java.execmd.exe

description	pid	process	target process
PID 2384 wrote to memory of 1704	2384	java.exe	icacls.exe
PID 2384 wrote to memory of 1704	2384	java.exe	icacls.exe
PID 2384 wrote to memory of 4588	2384	java.exe	cmd.exe
PID 2384 wrote to memory of 4588	2384	java.exe	cmd.exe
PID 2384 wrote to memory of 2156	2384	java.exe	java.exe
PID 2384 wrote to memory of 2156	2384	java.exe	java.exe
PID 4588 wrote to memory of 4664	4588	cmd.exe	schtasks.exe
PID 4588 wrote to memory of 4664	4588	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:2384

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:1704

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:4588

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:4664

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:2156

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

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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
8bb1fb5c8072278dc441bade097a88be

SHA1
dd3be1d6afe888596d6eb36fbae7b33088b89911

SHA256
81a6beaa8d13085351285a547d1e678d04757c3b88eec052cdbb9d37eef06dea

SHA512
d0d840ef3cf939a50026234121f5fca33e2e5816985f11ad378f355649374668a121b43b46abe0e73e0ffb3878bbfb8edde4eb3924f2aeaadb3b653bfa15eb15

Download Submit
memory/2156-63-0x00000253EA980000-0x00000253EB980000-memory.dmp

Filesize
16.0MB

Download
memory/2156-65-0x00000253EA980000-0x00000253EB980000-memory.dmp

Filesize
16.0MB

Download
memory/2156-64-0x00000253EA980000-0x00000253EB980000-memory.dmp

Filesize
16.0MB

Download
memory/2156-66-0x00000253EA980000-0x00000253EB980000-memory.dmp

Filesize
16.0MB

Download
memory/2156-50-0x00000253EA980000-0x00000253EB980000-memory.dmp

Filesize
16.0MB

Download
memory/2156-62-0x00000253EA980000-0x00000253EB980000-memory.dmp

Filesize
16.0MB

Download
memory/2156-58-0x00000253EA980000-0x00000253EB980000-memory.dmp

Filesize
16.0MB

Download
memory/2156-57-0x00000253EA980000-0x00000253EB980000-memory.dmp

Filesize
16.0MB

Download
memory/2156-56-0x00000253EA980000-0x00000253EB980000-memory.dmp

Filesize
16.0MB

Download
memory/2156-55-0x00000253EA960000-0x00000253EA961000-memory.dmp

Filesize
4KB

Download
memory/2156-42-0x00000253EA980000-0x00000253EB980000-memory.dmp

Filesize
16.0MB

Download
memory/2384-28-0x000001995E7F0000-0x000001995F7F0000-memory.dmp

Filesize
16.0MB

Download
memory/2384-33-0x000001995EAC0000-0x000001995EAD0000-memory.dmp

Filesize
64KB

Download
memory/2384-32-0x000001995EAB0000-0x000001995EAC0000-memory.dmp

Filesize
64KB

Download
memory/2384-31-0x000001995EAA0000-0x000001995EAB0000-memory.dmp

Filesize
64KB

Download
memory/2384-30-0x000001995EA90000-0x000001995EAA0000-memory.dmp

Filesize
64KB

Download
memory/2384-61-0x000001995E7F0000-0x000001995F7F0000-memory.dmp

Filesize
16.0MB

Download
memory/2384-29-0x000001995EA70000-0x000001995EA80000-memory.dmp

Filesize
64KB

Download
memory/2384-4-0x000001995E7F0000-0x000001995F7F0000-memory.dmp

Filesize
16.0MB

Download
memory/2384-17-0x000001995E7F0000-0x000001995F7F0000-memory.dmp

Filesize
16.0MB

Download
memory/2384-13-0x000001995CFD0000-0x000001995CFD1000-memory.dmp

Filesize
4KB

Download
memory/2384-12-0x000001995CFD0000-0x000001995CFD1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads