Analysis
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max time kernel
300s -
max time network
302s -
platform
windows7_x64 -
resource
win7-en-20211104 -
submitted
03-12-2021 16:41
Static task
static1
Behavioral task
behavioral1
Sample
INVOICE.exe
Resource
win7-en-20211104
Behavioral task
behavioral2
Sample
INVOICE.exe
Resource
win10-en-20211014
General
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Target
INVOICE.exe
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Size
463KB
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MD5
563ace61f357fe73207c546cbec9c0cd
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SHA1
6cc9bbe6704f4a54105502672d246e97d3c9688e
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SHA256
9beb57914c705bfd2a1bfaca1bd2f4beca2a2cd8dff49229558bca04774a360a
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SHA512
a48b165149fdd63b2ea95bafec0b4a22ca615530dabcb206a584d38d8cc3d7f4d1da3b64dc6096eaa4507d9bc98f115930384258873513b64b856b94d6934cda
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.dieseltronic.com.pe - Port:
587 - Username:
asistente@dieseltronic.com.pe - Password:
Asdiesel2019@?%%%,
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 5 IoCs
Processes:
resource yara_rule behavioral1/memory/1816-66-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1816-68-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1816-67-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1816-69-0x000000000043763E-mapping.dmp family_agenttesla behavioral1/memory/1816-70-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
INVOICE.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts INVOICE.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
INVOICE.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INVOICE.exe Key opened \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INVOICE.exe Key opened \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INVOICE.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
INVOICE.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe" INVOICE.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
INVOICE.exedescription pid process target process PID 1452 set thread context of 1816 1452 INVOICE.exe INVOICE.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
INVOICE.exeINVOICE.exepid process 1452 INVOICE.exe 1816 INVOICE.exe 1816 INVOICE.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
INVOICE.exeINVOICE.exedescription pid process Token: SeDebugPrivilege 1452 INVOICE.exe Token: SeDebugPrivilege 1816 INVOICE.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
INVOICE.exepid process 1816 INVOICE.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
INVOICE.exedescription pid process target process PID 1452 wrote to memory of 304 1452 INVOICE.exe schtasks.exe PID 1452 wrote to memory of 304 1452 INVOICE.exe schtasks.exe PID 1452 wrote to memory of 304 1452 INVOICE.exe schtasks.exe PID 1452 wrote to memory of 304 1452 INVOICE.exe schtasks.exe PID 1452 wrote to memory of 1816 1452 INVOICE.exe INVOICE.exe PID 1452 wrote to memory of 1816 1452 INVOICE.exe INVOICE.exe PID 1452 wrote to memory of 1816 1452 INVOICE.exe INVOICE.exe PID 1452 wrote to memory of 1816 1452 INVOICE.exe INVOICE.exe PID 1452 wrote to memory of 1816 1452 INVOICE.exe INVOICE.exe PID 1452 wrote to memory of 1816 1452 INVOICE.exe INVOICE.exe PID 1452 wrote to memory of 1816 1452 INVOICE.exe INVOICE.exe PID 1452 wrote to memory of 1816 1452 INVOICE.exe INVOICE.exe PID 1452 wrote to memory of 1816 1452 INVOICE.exe INVOICE.exe -
outlook_office_path 1 IoCs
Processes:
INVOICE.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INVOICE.exe -
outlook_win_path 1 IoCs
Processes:
INVOICE.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INVOICE.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jbRaoNBxNzlTq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp41E0.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"{path}"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp41E0.tmpMD5
35ada2a317171017c668145b08386b05
SHA17ccbf4bcb2fd99b677adcbb06cca89acb2ae3c94
SHA256ddd9d3027d7f1e3b76f0f22901d9dcefdfbdf40233c39df0202ecf9f73063ebb
SHA5123dda4d2b9aa01f4787a747be4da3c0877b310cdfdf61bde6a2ce9e3bad5fc3464c491c1ca6b0458aac345b21871c2ba2ecb87cf0839642ddc5672418ba1830e4
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memory/304-62-0x0000000000000000-mapping.dmp
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memory/1452-55-0x0000000000300000-0x0000000000301000-memory.dmpFilesize
4KB
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memory/1452-57-0x0000000075141000-0x0000000075143000-memory.dmpFilesize
8KB
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memory/1452-58-0x0000000004AE0000-0x0000000004AE1000-memory.dmpFilesize
4KB
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memory/1452-59-0x0000000000270000-0x0000000000275000-memory.dmpFilesize
20KB
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memory/1452-60-0x0000000005100000-0x0000000005175000-memory.dmpFilesize
468KB
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memory/1452-61-0x0000000002220000-0x0000000002258000-memory.dmpFilesize
224KB
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memory/1816-64-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1816-65-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1816-66-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1816-68-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1816-67-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1816-69-0x000000000043763E-mapping.dmp
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memory/1816-70-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1816-72-0x0000000004990000-0x0000000004991000-memory.dmpFilesize
4KB
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memory/1816-73-0x0000000004991000-0x0000000004992000-memory.dmpFilesize
4KB