Analysis
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max time kernel
134s -
max time network
47s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 02:09
Static task
static1
Behavioral task
behavioral1
Sample
NYRNC200420511_FreightArrival.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
NYRNC200420511_FreightArrival.exe
Resource
win10v2004-20220414-en
General
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Target
NYRNC200420511_FreightArrival.exe
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Size
446KB
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MD5
4e94b9a3025122a9949b79b37eeb3cff
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SHA1
a298bbb92765a40d6229da48b5c6c0edbc70f510
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SHA256
cb2792644a81d965b332d8d165e1e6f75894b43942a33d7e367f9b3a36d4a2bf
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SHA512
8551ea40aa3ee4dfc119b4560bee1c6a501be24b53f209e6b1672902b37a063cdd859822ba5793383ef679364fadc672b03c5752915f5404c75be74bef6678f3
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.karmachalets.co.in - Port:
587 - Username:
[email protected] - Password:
Akshya@123
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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CoreEntity .NET Packer 2 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
Processes:
resource yara_rule behavioral1/memory/1656-54-0x0000000001300000-0x0000000001376000-memory.dmp coreentity behavioral1/memory/1656-56-0x0000000000C80000-0x0000000000C88000-memory.dmp coreentity -
AgentTesla Payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1244-64-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral1/memory/1244-63-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral1/memory/1244-65-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral1/memory/1244-66-0x000000000044C8DE-mapping.dmp family_agenttesla behavioral1/memory/1244-70-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral1/memory/1244-68-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla -
Looks for VirtualBox Guest Additions in registry 2 TTPs
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ReZer0 packer 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
Processes:
resource yara_rule behavioral1/memory/1656-57-0x0000000004780000-0x00000000047D8000-memory.dmp rezer0 -
Looks for VMWare Tools registry key 2 TTPs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
NYRNC200420511_FreightArrival.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion NYRNC200420511_FreightArrival.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion NYRNC200420511_FreightArrival.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:
NYRNC200420511_FreightArrival.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 NYRNC200420511_FreightArrival.exe Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 NYRNC200420511_FreightArrival.exe Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 NYRNC200420511_FreightArrival.exe -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
NYRNC200420511_FreightArrival.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum NYRNC200420511_FreightArrival.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 NYRNC200420511_FreightArrival.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
NYRNC200420511_FreightArrival.exedescription pid process target process PID 1656 set thread context of 1244 1656 NYRNC200420511_FreightArrival.exe NYRNC200420511_FreightArrival.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:
NYRNC200420511_FreightArrival.exeNYRNC200420511_FreightArrival.exepid process 1656 NYRNC200420511_FreightArrival.exe 1244 NYRNC200420511_FreightArrival.exe 1244 NYRNC200420511_FreightArrival.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
NYRNC200420511_FreightArrival.exeNYRNC200420511_FreightArrival.exedescription pid process Token: SeDebugPrivilege 1656 NYRNC200420511_FreightArrival.exe Token: SeDebugPrivilege 1244 NYRNC200420511_FreightArrival.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
NYRNC200420511_FreightArrival.exeNYRNC200420511_FreightArrival.exedescription pid process target process PID 1656 wrote to memory of 940 1656 NYRNC200420511_FreightArrival.exe schtasks.exe PID 1656 wrote to memory of 940 1656 NYRNC200420511_FreightArrival.exe schtasks.exe PID 1656 wrote to memory of 940 1656 NYRNC200420511_FreightArrival.exe schtasks.exe PID 1656 wrote to memory of 940 1656 NYRNC200420511_FreightArrival.exe schtasks.exe PID 1656 wrote to memory of 1244 1656 NYRNC200420511_FreightArrival.exe NYRNC200420511_FreightArrival.exe PID 1656 wrote to memory of 1244 1656 NYRNC200420511_FreightArrival.exe NYRNC200420511_FreightArrival.exe PID 1656 wrote to memory of 1244 1656 NYRNC200420511_FreightArrival.exe NYRNC200420511_FreightArrival.exe PID 1656 wrote to memory of 1244 1656 NYRNC200420511_FreightArrival.exe NYRNC200420511_FreightArrival.exe PID 1656 wrote to memory of 1244 1656 NYRNC200420511_FreightArrival.exe NYRNC200420511_FreightArrival.exe PID 1656 wrote to memory of 1244 1656 NYRNC200420511_FreightArrival.exe NYRNC200420511_FreightArrival.exe PID 1656 wrote to memory of 1244 1656 NYRNC200420511_FreightArrival.exe NYRNC200420511_FreightArrival.exe PID 1656 wrote to memory of 1244 1656 NYRNC200420511_FreightArrival.exe NYRNC200420511_FreightArrival.exe PID 1656 wrote to memory of 1244 1656 NYRNC200420511_FreightArrival.exe NYRNC200420511_FreightArrival.exe PID 1244 wrote to memory of 748 1244 NYRNC200420511_FreightArrival.exe netsh.exe PID 1244 wrote to memory of 748 1244 NYRNC200420511_FreightArrival.exe netsh.exe PID 1244 wrote to memory of 748 1244 NYRNC200420511_FreightArrival.exe netsh.exe PID 1244 wrote to memory of 748 1244 NYRNC200420511_FreightArrival.exe netsh.exe -
outlook_office_path 1 IoCs
Processes:
NYRNC200420511_FreightArrival.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 NYRNC200420511_FreightArrival.exe -
outlook_win_path 1 IoCs
Processes:
NYRNC200420511_FreightArrival.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 NYRNC200420511_FreightArrival.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\NYRNC200420511_FreightArrival.exe"C:\Users\Admin\AppData\Local\Temp\NYRNC200420511_FreightArrival.exe"1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1656 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PldCGfbSGLnQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8122.tmp"2⤵
- Creates scheduled task(s)
PID:940
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C:\Users\Admin\AppData\Local\Temp\NYRNC200420511_FreightArrival.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1244 -
C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵PID:748
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5887823c77259143e4f9574e1e4328368
SHA11e46c4039cefaacf9e8802aec63d56140d1f7e9c
SHA256853f0fc3bd2a5a7b48e2360b53a70f9df553fa02c1f5965f401a350945db95a8
SHA512bcad89ec70b56644a417ca65f30db694ec7834aaca026535984a27fcc0cf505dbc5d716f298e806d4330f8cabb837ed8f59013dbd164835569ad2b0bb8571ccd