Analysis
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max time kernel
118s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
15-09-2024 07:25
Behavioral task
behavioral1
Sample
INVOICE09876545J.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
INVOICE09876545J.exe
Resource
win10v2004-20240802-en
General
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Target
INVOICE09876545J.exe
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Size
633KB
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MD5
38febc8fe240353eab810eeedc379961
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SHA1
4145de7c3f531f10c786d09302923f0572244d53
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SHA256
eb59c6e8a42daf2f27f8112f109e563128e0d2b3a4cd9a074832e68e75cb9870
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SHA512
a276a728bf50085a0aa2902ef4dbc97a88d6b4428a2ee1a75474382b451ebe8bec3bc126845d470540df06f72004c9ec3a6481f3ecfaa6446719910f3b9490b5
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SSDEEP
12288:tz7hU5I5yuNHIgzSFKxWltRohBfSTso93UCv1hNhcFVxO4ePQnAf2Oy15:tf+iN57Gtene3lMFYPQnAf2OyH
Malware Config
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.antoniomayol.com:21 - Port:
21 - Username:
[email protected] - Password:
cMhKDQUk1{;%
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\complacence.vbs complacence.exe -
Executes dropped EXE 1 IoCs
pid Process 328 complacence.exe -
Loads dropped DLL 1 IoCs
pid Process 2032 INVOICE09876545J.exe -
resource yara_rule behavioral1/memory/2032-0-0x00000000009B0000-0x0000000000B19000-memory.dmp upx behavioral1/files/0x00060000000191cf-9.dat upx behavioral1/memory/328-16-0x00000000000F0000-0x0000000000259000-memory.dmp upx behavioral1/memory/2032-13-0x00000000009B0000-0x0000000000B19000-memory.dmp upx behavioral1/memory/328-33-0x00000000000F0000-0x0000000000259000-memory.dmp upx -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 ip-api.com -
AutoIT Executable 2 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral1/memory/2032-13-0x00000000009B0000-0x0000000000B19000-memory.dmp autoit_exe behavioral1/memory/328-33-0x00000000000F0000-0x0000000000259000-memory.dmp autoit_exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 328 set thread context of 380 328 complacence.exe 31 -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language INVOICE09876545J.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language complacence.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 380 RegSvcs.exe 380 RegSvcs.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 328 complacence.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 380 RegSvcs.exe -
Suspicious use of FindShellTrayWindow 4 IoCs
pid Process 2032 INVOICE09876545J.exe 2032 INVOICE09876545J.exe 328 complacence.exe 328 complacence.exe -
Suspicious use of SendNotifyMessage 4 IoCs
pid Process 2032 INVOICE09876545J.exe 2032 INVOICE09876545J.exe 328 complacence.exe 328 complacence.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2032 wrote to memory of 328 2032 INVOICE09876545J.exe 30 PID 2032 wrote to memory of 328 2032 INVOICE09876545J.exe 30 PID 2032 wrote to memory of 328 2032 INVOICE09876545J.exe 30 PID 2032 wrote to memory of 328 2032 INVOICE09876545J.exe 30 PID 328 wrote to memory of 380 328 complacence.exe 31 PID 328 wrote to memory of 380 328 complacence.exe 31 PID 328 wrote to memory of 380 328 complacence.exe 31 PID 328 wrote to memory of 380 328 complacence.exe 31 PID 328 wrote to memory of 380 328 complacence.exe 31 PID 328 wrote to memory of 380 328 complacence.exe 31 PID 328 wrote to memory of 380 328 complacence.exe 31 PID 328 wrote to memory of 380 328 complacence.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\INVOICE09876545J.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE09876545J.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2032 -
C:\Users\Admin\AppData\Local\antiprimer\complacence.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE09876545J.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:328 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE09876545J.exe"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:380
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
633KB
MD538febc8fe240353eab810eeedc379961
SHA14145de7c3f531f10c786d09302923f0572244d53
SHA256eb59c6e8a42daf2f27f8112f109e563128e0d2b3a4cd9a074832e68e75cb9870
SHA512a276a728bf50085a0aa2902ef4dbc97a88d6b4428a2ee1a75474382b451ebe8bec3bc126845d470540df06f72004c9ec3a6481f3ecfaa6446719910f3b9490b5