Analysis
- max time kernel
122s - max time network
117s - platform
windows10_x64 - resource
win10 - submitted
01/07/2020, 08:00
Static task
static1
Behavioral task
behavioral1
Sample
purchase order.exe
Resource
win7v200430
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
purchase order.exe
Resource
win10
0 signatures
0 seconds
General
- Target purchase order.exe
- Size 517KB
- Sample200701-2zl394d51a
- SHA256 00168316f03e50b7cf516c090729a168491ff2bf8f3538abc8f64489c86ebd8b
- MD5 392413452ec4d4e7d8823493682a0129
- SHA1 3ab532086614cdcadd5a6954d96dde8457c64806
- SHA512 c4e76b211f16940a374a88f128b1276c787d552d517fdfd888d4de2378130351b90def2f5f63ab9ee7d1a70e91a060471b6a27f11ea1419ca2782aa328e7b070
- MD5 SHA1 SHA512
Malware Config
Extracted
Credentials
-
Protocol
smtp
-
Host
mail.threewaystoharems.com
-
Port
587
-
Username
-
Password
sales@123456
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
mail.threewaystoharems.com
-
Port
587
-
Username
-
Password
sales@123456
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
resource yara_rule behavioral2/memory/3896-0-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/3896-1-0x000000000044737E-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.
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe" purchase order.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 976 set thread context of 3896 976 purchase order.exe 67 - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3896 purchase order.exe 3896 purchase order.exe - Suspicious behavior: RenamesItself 1 IoCs
pid Process 3896 purchase order.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3896 purchase order.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 976 wrote to memory of 3896 976 purchase order.exe 67 PID 976 wrote to memory of 3896 976 purchase order.exe 67 PID 976 wrote to memory of 3896 976 purchase order.exe 67 PID 976 wrote to memory of 3896 976 purchase order.exe 67 PID 976 wrote to memory of 3896 976 purchase order.exe 67 PID 976 wrote to memory of 3896 976 purchase order.exe 67 PID 976 wrote to memory of 3896 976 purchase order.exe 67 PID 976 wrote to memory of 3896 976 purchase order.exe 67
Processes
-
C:\Users\Admin\AppData\Local\Temp\purchase order.exe"C:\Users\Admin\AppData\Local\Temp\purchase order.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:976 -
C:\Users\Admin\AppData\Local\Temp\purchase order.exe"{path}"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
PID:3896
-