Analysis
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max time kernel
139s -
max time network
166s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 00:21
Static task
static1
Behavioral task
behavioral1
Sample
BANK_PAY.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
BANK_PAY.exe
Resource
win10v2004-20220414-en
General
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Target
BANK_PAY.exe
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Size
467KB
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MD5
20758038b5d11ae2ecaafdb53924ad88
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SHA1
4de4617c58f33df35899bd1ac6a2fffe377dee46
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SHA256
bc07064a72812e0bef060dee9886ba7d06969c22a6ab8459f2682441142e8dc9
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SHA512
e048585b935312f3b358517b925877635c7e1bd5d51dd47f63fec29b88e7145df59e94fc03ddb0c4b8670f71807e00f5505835d9962f2d29fbdbc339087541fa
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail-out.cytanet.com.cy - Port:
587 - Username:
[email protected] - Password:
signs606
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2524-137-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
BANK_PAY.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation BANK_PAY.exe -
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:
BANK_PAY.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 BANK_PAY.exe Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 BANK_PAY.exe Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 BANK_PAY.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
BANK_PAY.exedescription pid process target process PID 1964 set thread context of 2524 1964 BANK_PAY.exe BANK_PAY.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 2 IoCs
Processes:
BANK_PAY.exepid process 2524 BANK_PAY.exe 2524 BANK_PAY.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
BANK_PAY.exedescription pid process Token: SeDebugPrivilege 2524 BANK_PAY.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
BANK_PAY.exedescription pid process target process PID 1964 wrote to memory of 3496 1964 BANK_PAY.exe schtasks.exe PID 1964 wrote to memory of 3496 1964 BANK_PAY.exe schtasks.exe PID 1964 wrote to memory of 3496 1964 BANK_PAY.exe schtasks.exe PID 1964 wrote to memory of 2524 1964 BANK_PAY.exe BANK_PAY.exe PID 1964 wrote to memory of 2524 1964 BANK_PAY.exe BANK_PAY.exe PID 1964 wrote to memory of 2524 1964 BANK_PAY.exe BANK_PAY.exe PID 1964 wrote to memory of 2524 1964 BANK_PAY.exe BANK_PAY.exe PID 1964 wrote to memory of 2524 1964 BANK_PAY.exe BANK_PAY.exe PID 1964 wrote to memory of 2524 1964 BANK_PAY.exe BANK_PAY.exe PID 1964 wrote to memory of 2524 1964 BANK_PAY.exe BANK_PAY.exe PID 1964 wrote to memory of 2524 1964 BANK_PAY.exe BANK_PAY.exe -
outlook_office_path 1 IoCs
Processes:
BANK_PAY.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 BANK_PAY.exe -
outlook_win_path 1 IoCs
Processes:
BANK_PAY.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 BANK_PAY.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\BANK_PAY.exe"C:\Users\Admin\AppData\Local\Temp\BANK_PAY.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1964 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nhotChCDU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFE79.tmp"2⤵
- Creates scheduled task(s)
PID:3496 -
C:\Users\Admin\AppData\Local\Temp\BANK_PAY.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2524
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
507B
MD576ffb2f33cb32ade8fc862a67599e9d8
SHA1920cc4ab75b36d2f9f6e979b74db568973c49130
SHA256f1a3724670e3379318ec9c73f6f39058cab0ab013ba3cd90c047c3d701362310
SHA512f33502c2e1bb30c05359bfc6819ca934642a1e01874e3060349127d792694d56ad22fccd6c9477b8ee50d66db35785779324273f509576b48b7f85577e001b4e
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Filesize
1KB
MD5a731a30d3b92c3b186c612a56f1b3022
SHA132d77369d99ef14eb30bd853d55d0bcf5ca67943
SHA2561b7ac4754f227b0f263a050280a7ff30158a36f51a3dc4e99fb7e34f388ebff1
SHA512b3a5b2881d9e40e8284befade06eed653b1e3ccd84b10e1a6739427b11590c5876f78f750a77455bc3da7368371eb978f42af3508ced3a89c6a9acf036d84095