Analysis
- max time kernel
151s - max time network
150s - platform
windows7_x64 - resource
win7 - submitted
24/06/2020, 14:54
Static task
static1
Behavioral task
behavioral1
Sample
ENQUIRY2.exe
Resource
win7
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
ENQUIRY2.exe
Resource
win10
windows10_x64
0 signatures
0 seconds
General
- Target ENQUIRY2.exe
- Size 1.1MB
- Sample200624-e8ztkqwhmj
- SHA256 8bc57dbd7aa1c3ac5b3e4f743eb616b93aec9bae6975ccdaa9ad596ada32275b
- MD5 3be28133b28c2bbeee9dcf40db704e95
- SHA1 0208cbf4f8c217b50eacf1b55c87eb666e8225ce
- SHA512 e8dc4639629faea01ebd68e3856cad2f80ab9b4eb540868b8fa75ed1e734b7ba3f6069a812a0868e1b0dadd9b86ecc43ddaae1202fea74ed9b1be95030c73248
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
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 4 IoCs
resource yara_rule behavioral1/memory/2016-11-0x0000000000380000-0x0000000000868000-memory.dmp family_agenttesla behavioral1/memory/2016-12-0x00000000003C6A7E-mapping.dmp family_agenttesla behavioral1/memory/2016-14-0x0000000000380000-0x0000000000868000-memory.dmp family_agenttesla behavioral1/memory/2016-15-0x0000000000380000-0x0000000000868000-memory.dmp family_agenttesla - Executes dropped EXE 2 IoCs
pid Process 1960 rxss.pif 2016 RegSvcs.exe - Loads dropped DLL 5 IoCs
pid Process 1752 ENQUIRY2.exe 1752 ENQUIRY2.exe 1752 ENQUIRY2.exe 1752 ENQUIRY2.exe 1960 rxss.pif - 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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\file.exe = "c:\\27027319\\rxss.pif c:\\27027319\\qtooki.jwq" rxss.pif Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run rxss.pif - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1960 set thread context of 2016 1960 rxss.pif 25 - 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 2016 RegSvcs.exe 2016 RegSvcs.exe 2016 RegSvcs.exe 2016 RegSvcs.exe 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 2016 RegSvcs.exe 2016 RegSvcs.exe 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif 1960 rxss.pif - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2016 RegSvcs.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2016 RegSvcs.exe - Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 1752 wrote to memory of 1960 1752 ENQUIRY2.exe 24 PID 1752 wrote to memory of 1960 1752 ENQUIRY2.exe 24 PID 1752 wrote to memory of 1960 1752 ENQUIRY2.exe 24 PID 1752 wrote to memory of 1960 1752 ENQUIRY2.exe 24 PID 1960 wrote to memory of 2016 1960 rxss.pif 25 PID 1960 wrote to memory of 2016 1960 rxss.pif 25 PID 1960 wrote to memory of 2016 1960 rxss.pif 25 PID 1960 wrote to memory of 2016 1960 rxss.pif 25 PID 1960 wrote to memory of 2016 1960 rxss.pif 25 PID 1960 wrote to memory of 2016 1960 rxss.pif 25 PID 1960 wrote to memory of 2016 1960 rxss.pif 25 PID 1960 wrote to memory of 2016 1960 rxss.pif 25 PID 1960 wrote to memory of 2016 1960 rxss.pif 25
Processes
-
C:\Users\Admin\AppData\Local\Temp\ENQUIRY2.exe"C:\Users\Admin\AppData\Local\Temp\ENQUIRY2.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1752 -
C:\27027319\rxss.pif"C:\27027319\rxss.pif" qtooki.jwq2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1960 -
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:2016
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