Analysis
- max time kernel
140s - max time network
20s - platform
windows7_x64 - resource
win7v200430 - submitted
01/07/2020, 09:28
Static task
static1
Behavioral task
behavioral1
Sample
invo121KOK02.exe
Resource
win7v200430
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
invo121KOK02.exe
Resource
win10
0 signatures
0 seconds
General
- Target invo121KOK02.exe
- Size 527KB
- Sample200701-starvb7ffe
- SHA256 a4d4e606bd62e9e913589f5a0ba79d8fde4e5d0d1ba517e9cfa2c4b2b441f610
- MD5 e3db8f4a5c523011f20093bf15174cc5
- SHA1 ca2d963970ae5e8eb77ba890a635e4fdd0eb5252
- SHA512 d9a54080abc1a90ba66a3451fb558e39563ebcce06573f5edd8d7409ca80cdb618f74613f2fb8495f4c1407a2a56ae79572c8d0134b0c48f74095fa580577fc5
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
smtp.ionos.es
-
Port
587
-
Username
-
Password
Famorga2017
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
resource yara_rule behavioral1/memory/1752-4-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1752-5-0x000000000044707E-mapping.dmp family_agenttesla behavioral1/memory/1752-6-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1752-7-0x0000000000400000-0x000000000044C000-memory.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 240 set thread context of 1752 240 invo121KOK02.exe 28 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1860 schtasks.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1752 invo121KOK02.exe 1752 invo121KOK02.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1752 invo121KOK02.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1752 invo121KOK02.exe - Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 240 wrote to memory of 1860 240 invo121KOK02.exe 26 PID 240 wrote to memory of 1860 240 invo121KOK02.exe 26 PID 240 wrote to memory of 1860 240 invo121KOK02.exe 26 PID 240 wrote to memory of 1860 240 invo121KOK02.exe 26 PID 240 wrote to memory of 1752 240 invo121KOK02.exe 28 PID 240 wrote to memory of 1752 240 invo121KOK02.exe 28 PID 240 wrote to memory of 1752 240 invo121KOK02.exe 28 PID 240 wrote to memory of 1752 240 invo121KOK02.exe 28 PID 240 wrote to memory of 1752 240 invo121KOK02.exe 28 PID 240 wrote to memory of 1752 240 invo121KOK02.exe 28 PID 240 wrote to memory of 1752 240 invo121KOK02.exe 28 PID 240 wrote to memory of 1752 240 invo121KOK02.exe 28 PID 240 wrote to memory of 1752 240 invo121KOK02.exe 28
Processes
-
C:\Users\Admin\AppData\Local\Temp\invo121KOK02.exe"C:\Users\Admin\AppData\Local\Temp\invo121KOK02.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:240 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SvDphfl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6E2D.tmp"2⤵
- Creates scheduled task(s)
PID:1860
-
-
C:\Users\Admin\AppData\Local\Temp\invo121KOK02.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1752
-