Analysis
- max time kernel
150s - max time network
22s - platform
windows10_x64 - resource
win10 - submitted
24/06/2020, 13:37
Static task
static1
Behavioral task
behavioral1
Sample
Payment swift 1.exe
Resource
win7
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Payment swift 1.exe
Resource
win10
windows10_x64
0 signatures
0 seconds
General
- Target Payment swift 1.exe
- Size 1.1MB
- Sample200624-86flhbt4ke
- SHA256 69aa5eec8198c9b95f9e6fbe8bee487ba430ba01a952009aef56805b0516cd83
- MD5 54f752d80ed50bcb31bccb75eca3d965
- SHA1 5b38c1c65f2ca9abf0d3af88ec16d53c91b1251e
- SHA512 a45bd6607fe4d3579664d87f2de70ff17e9c66cebdaa23b529c22b573a85e15245f280e0d6ba3bc536b8a4629620cf7b296a53dab2a6704d659d61312f231f27
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
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agenttesla
Credentials
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
esut96092
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
resource yara_rule behavioral2/memory/3668-7-0x0000000001170000-0x000000000179A000-memory.dmp family_agenttesla behavioral2/memory/3668-8-0x00000000011B6A7E-mapping.dmp family_agenttesla - Executes dropped EXE 2 IoCs
pid Process 3312 cffrpwlf.pif 3668 RegSvcs.exe - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run cffrpwlf.pif Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\winlogon.exe = "C:\\Users\\Admin\\50735346\\cffrpwlf.pif C:\\Users\\Admin\\50735346\\GTTCUU~1.LSP" cffrpwlf.pif - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3312 set thread context of 3668 3312 cffrpwlf.pif 69 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3668 RegSvcs.exe 3668 RegSvcs.exe 3668 RegSvcs.exe 3668 RegSvcs.exe 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3668 RegSvcs.exe 3668 RegSvcs.exe 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif 3312 cffrpwlf.pif - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3668 RegSvcs.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3668 RegSvcs.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3536 wrote to memory of 3312 3536 Payment swift 1.exe 67 PID 3536 wrote to memory of 3312 3536 Payment swift 1.exe 67 PID 3536 wrote to memory of 3312 3536 Payment swift 1.exe 67 PID 3312 wrote to memory of 3668 3312 cffrpwlf.pif 69 PID 3312 wrote to memory of 3668 3312 cffrpwlf.pif 69 PID 3312 wrote to memory of 3668 3312 cffrpwlf.pif 69 PID 3312 wrote to memory of 3668 3312 cffrpwlf.pif 69 PID 3312 wrote to memory of 3668 3312 cffrpwlf.pif 69
Processes
-
C:\Users\Admin\AppData\Local\Temp\Payment swift 1.exe"C:\Users\Admin\AppData\Local\Temp\Payment swift 1.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3536 -
C:\Users\Admin\50735346\cffrpwlf.pif"C:\Users\Admin\50735346\cffrpwlf.pif" gttcuuimf.lsp2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3312 -
C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3668
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