Analysis
- max time kernel
96s - max time network
104s - platform
windows10_x64 - resource
win10v20201028 - submitted
18/12/2020, 14:07
Static task
static1
Behavioral task
behavioral1
Sample
payment proof.scr.exe
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
payment proof.scr.exe
Resource
win10v20201028
0 signatures
0 seconds
General
- Target payment proof.scr.exe
- Size 40KB
- Sample201218-m3fk5r2d42
- SHA256 5f8c7788c7ce23bead2ccae4724fe05e277007f2caed3eedfef6103a4bbfabae
- MD5 f0814e9fab4ec1629aa9ef8a273366df
- SHA1 1219800bf00e92c930691bbbade57e920a4d2356
- SHA512 ad085c103762d785681427180fe0ddccfac4f77c7917be4f2540209c3b1c39effb4ac20bbe077fa26f75be556d1a28260067777ba270619d0bec3b451865cd43
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
-
agenttesla
C2
-
https://api.telegram.org/bot1481923647:AAGiBTAuCt4mxLt_RWPYNlSpw01yplTkoZI/sendDocument
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
resource yara_rule behavioral2/memory/648-10-0x0000000000400000-0x0000000000448000-memory.dmp family_agenttesla behavioral2/memory/648-11-0x000000000043776E-mapping.dmp family_agenttesla - 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.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4764 set thread context of 648 4764 payment proof.scr.exe 81 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Delays execution with timeout.exe 1 IoCs
pid Process 692 timeout.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 648 payment proof.scr.exe 648 payment proof.scr.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4764 payment proof.scr.exe Token: SeDebugPrivilege 648 payment proof.scr.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 648 payment proof.scr.exe - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4764 wrote to memory of 4240 4764 payment proof.scr.exe 75 PID 4764 wrote to memory of 4240 4764 payment proof.scr.exe 75 PID 4764 wrote to memory of 4240 4764 payment proof.scr.exe 75 PID 4240 wrote to memory of 692 4240 cmd.exe 77 PID 4240 wrote to memory of 692 4240 cmd.exe 77 PID 4240 wrote to memory of 692 4240 cmd.exe 77 PID 4764 wrote to memory of 648 4764 payment proof.scr.exe 81 PID 4764 wrote to memory of 648 4764 payment proof.scr.exe 81 PID 4764 wrote to memory of 648 4764 payment proof.scr.exe 81 PID 4764 wrote to memory of 648 4764 payment proof.scr.exe 81 PID 4764 wrote to memory of 648 4764 payment proof.scr.exe 81 PID 4764 wrote to memory of 648 4764 payment proof.scr.exe 81 PID 4764 wrote to memory of 648 4764 payment proof.scr.exe 81 PID 4764 wrote to memory of 648 4764 payment proof.scr.exe 81
Processes
-
C:\Users\Admin\AppData\Local\Temp\payment proof.scr.exe"C:\Users\Admin\AppData\Local\Temp\payment proof.scr.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4764 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout 4.962⤵
- Suspicious use of WriteProcessMemory
PID:4240 -
C:\Windows\SysWOW64\timeout.exetimeout 4.963⤵
- Delays execution with timeout.exe
PID:692
-
-
-
C:\Users\Admin\AppData\Local\Temp\payment proof.scr.exe"C:\Users\Admin\AppData\Local\Temp\payment proof.scr.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:648
-