strrat | 5209a5306d46dea4da89de88335d50a6c4d3ff17f547bae4cd61660a32427ca3

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
30/05/2023, 07:54

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

Payment_Advice.jar
Size

70KB
MD5

be77b01b2addc5f0d1dff29b5635ce9a
SHA1

88e3fc169497a27c81498957459f03920156d3f9
SHA256

5209a5306d46dea4da89de88335d50a6c4d3ff17f547bae4cd61660a32427ca3
SHA512

a52cd8371b7cd5b0aa132b14df561a379746a314f3323a1ffc8ab2174351866fd7a9943facc9ecf0f74e9150fc12ab88761931fc786063b81901ea65f19aac51
SSDEEP

1536:6/gMAxRQVTcG7gLsDJ9U+ldSfiexN5VnH/KKTwcoe3o/ljSUS:HMAf0cvLs7UqdSzTnyKThMSZ

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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Payment_Advice.jar	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-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Payment_Advice = "\"C:\\Program Files\\Java\\jre1.8.0_66\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\Payment_Advice.jar\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Payment_Advice = "\"C:\\Program Files\\Java\\jre1.8.0_66\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\Payment_Advice.jar\""	java.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
27	ip-api.com

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
4280	schtasks.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4212	WMIC.exe
Token: SeSecurityPrivilege	4212	WMIC.exe
Token: SeTakeOwnershipPrivilege	4212	WMIC.exe
Token: SeLoadDriverPrivilege	4212	WMIC.exe
Token: SeSystemProfilePrivilege	4212	WMIC.exe
Token: SeSystemtimePrivilege	4212	WMIC.exe
Token: SeProfSingleProcessPrivilege	4212	WMIC.exe
Token: SeIncBasePriorityPrivilege	4212	WMIC.exe
Token: SeCreatePagefilePrivilege	4212	WMIC.exe
Token: SeBackupPrivilege	4212	WMIC.exe
Token: SeRestorePrivilege	4212	WMIC.exe
Token: SeShutdownPrivilege	4212	WMIC.exe
Token: SeDebugPrivilege	4212	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4212	WMIC.exe
Token: SeRemoteShutdownPrivilege	4212	WMIC.exe
Token: SeUndockPrivilege	4212	WMIC.exe
Token: SeManageVolumePrivilege	4212	WMIC.exe
Token: 33	4212	WMIC.exe
Token: 34	4212	WMIC.exe
Token: 35	4212	WMIC.exe
Token: 36	4212	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4212	WMIC.exe
Token: SeSecurityPrivilege	4212	WMIC.exe
Token: SeTakeOwnershipPrivilege	4212	WMIC.exe
Token: SeLoadDriverPrivilege	4212	WMIC.exe
Token: SeSystemProfilePrivilege	4212	WMIC.exe
Token: SeSystemtimePrivilege	4212	WMIC.exe
Token: SeProfSingleProcessPrivilege	4212	WMIC.exe
Token: SeIncBasePriorityPrivilege	4212	WMIC.exe
Token: SeCreatePagefilePrivilege	4212	WMIC.exe
Token: SeBackupPrivilege	4212	WMIC.exe
Token: SeRestorePrivilege	4212	WMIC.exe
Token: SeShutdownPrivilege	4212	WMIC.exe
Token: SeDebugPrivilege	4212	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4212	WMIC.exe
Token: SeRemoteShutdownPrivilege	4212	WMIC.exe
Token: SeUndockPrivilege	4212	WMIC.exe
Token: SeManageVolumePrivilege	4212	WMIC.exe
Token: 33	4212	WMIC.exe
Token: 34	4212	WMIC.exe
Token: 35	4212	WMIC.exe
Token: 36	4212	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2616	WMIC.exe
Token: SeSecurityPrivilege	2616	WMIC.exe
Token: SeTakeOwnershipPrivilege	2616	WMIC.exe
Token: SeLoadDriverPrivilege	2616	WMIC.exe
Token: SeSystemProfilePrivilege	2616	WMIC.exe
Token: SeSystemtimePrivilege	2616	WMIC.exe
Token: SeProfSingleProcessPrivilege	2616	WMIC.exe
Token: SeIncBasePriorityPrivilege	2616	WMIC.exe
Token: SeCreatePagefilePrivilege	2616	WMIC.exe
Token: SeBackupPrivilege	2616	WMIC.exe
Token: SeRestorePrivilege	2616	WMIC.exe
Token: SeShutdownPrivilege	2616	WMIC.exe
Token: SeDebugPrivilege	2616	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2616	WMIC.exe
Token: SeRemoteShutdownPrivilege	2616	WMIC.exe
Token: SeUndockPrivilege	2616	WMIC.exe
Token: SeManageVolumePrivilege	2616	WMIC.exe
Token: 33	2616	WMIC.exe
Token: 34	2616	WMIC.exe
Token: 35	2616	WMIC.exe
Token: 36	2616	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2616	WMIC.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 2180	2708	java.exe	87
PID 2708 wrote to memory of 2180	2708	java.exe	87
PID 2708 wrote to memory of 3032	2708	java.exe	88
PID 2708 wrote to memory of 3032	2708	java.exe	88
PID 2180 wrote to memory of 4280	2180	cmd.exe	91
PID 2180 wrote to memory of 4280	2180	cmd.exe	91
PID 3032 wrote to memory of 2820	3032	java.exe	92
PID 3032 wrote to memory of 2820	3032	java.exe	92
PID 2820 wrote to memory of 4212	2820	cmd.exe	94
PID 2820 wrote to memory of 4212	2820	cmd.exe	94
PID 3032 wrote to memory of 3956	3032	java.exe	95
PID 3032 wrote to memory of 3956	3032	java.exe	95
PID 3956 wrote to memory of 2616	3956	cmd.exe	97
PID 3956 wrote to memory of 2616	3956	cmd.exe	97
PID 3032 wrote to memory of 5080	3032	java.exe	98
PID 3032 wrote to memory of 5080	3032	java.exe	98
PID 5080 wrote to memory of 2792	5080	cmd.exe	100
PID 5080 wrote to memory of 2792	5080	cmd.exe	100
PID 3032 wrote to memory of 1332	3032	java.exe	101
PID 3032 wrote to memory of 1332	3032	java.exe	101
PID 1332 wrote to memory of 3444	1332	cmd.exe	103
PID 1332 wrote to memory of 3444	1332	cmd.exe	103

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:\ProgramData\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\Payment_Advice.jar
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Payment_Advice.jar"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2180
- - C:\Windows\system32\schtasks.exe
    schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Payment_Advice.jar"
    3⤵
    - Creates scheduled task(s)
    PID:4280
- 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\Payment_Advice.jar"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3032
- - C:\Windows\SYSTEM32\cmd.exe
    cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2820
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:4212
- - C:\Windows\SYSTEM32\cmd.exe
    cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3956
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2616
- - C:\Windows\SYSTEM32\cmd.exe
    cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:5080
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
      4⤵
      PID:2792
- - C:\Windows\SYSTEM32\cmd.exe
    cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1332
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
      4⤵
      PID:3444

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\Payment_Advice.jar

Filesize
70KB

MD5
be77b01b2addc5f0d1dff29b5635ce9a

SHA1
88e3fc169497a27c81498957459f03920156d3f9

SHA256
5209a5306d46dea4da89de88335d50a6c4d3ff17f547bae4cd61660a32427ca3

SHA512
a52cd8371b7cd5b0aa132b14df561a379746a314f3323a1ffc8ab2174351866fd7a9943facc9ecf0f74e9150fc12ab88761931fc786063b81901ea65f19aac51

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

Filesize
50B

MD5
74da6574b07ea57fbc361d20be935235

SHA1
3e92c776493bcada0143ab9fa794966823142d8e

SHA256
1ba8cfa2db280d7d323bafe3df66357de8e4e89a93eaa55b492baae0c3bf328d

SHA512
cf80e77c90d72d154a01186cb797c22084bd901ed9ab8c9c9d62c865af406b1be02ccaf70e235919db70ce558faea94211e27d5a3725ab1e3bb936da799b8ef9

Download Submit
C:\Users\Admin\AppData\Roaming\Payment_Advice.jar

Filesize
70KB

MD5
be77b01b2addc5f0d1dff29b5635ce9a

SHA1
88e3fc169497a27c81498957459f03920156d3f9

SHA256
5209a5306d46dea4da89de88335d50a6c4d3ff17f547bae4cd61660a32427ca3

SHA512
a52cd8371b7cd5b0aa132b14df561a379746a314f3323a1ffc8ab2174351866fd7a9943facc9ecf0f74e9150fc12ab88761931fc786063b81901ea65f19aac51

Download Submit
memory/2708-143-0x0000000002710000-0x0000000002711000-memory.dmp

Filesize
4KB

Download
memory/3032-166-0x0000000001520000-0x0000000001521000-memory.dmp

Filesize
4KB

Download
memory/3032-168-0x0000000001520000-0x0000000001521000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads