Analysis
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max time kernel
150s -
max time network
12s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
27-07-2021 13:04
Static task
static1
Behavioral task
behavioral1
Sample
Purchase - Order.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
Purchase - Order.exe
Resource
win10v20210410
General
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Target
Purchase - Order.exe
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Size
491KB
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MD5
c25db03537a94168fe05f968720c735a
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SHA1
bdf8b7786bdd448a689e06347895ca8dbddab79c
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SHA256
3a94befc248570bf58be57f7b0e146985221219aefed7e437ddf865711b7c069
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SHA512
26f27f98183de9f87807add66919fbeabf1e6373dfd98360348860f551f3292deb347560cd2ac0fe7372424374d5f1b8a8add9d92739bca32e725374bb974241
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.zakhourco.com - Port:
587 - Username:
mira.kassar@zakhourco.com - Password:
#Za$out%12
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/1292-68-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1292-69-0x000000000043784E-mapping.dmp family_agenttesla behavioral1/memory/1292-70-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
Looks for VirtualBox Guest Additions in registry 2 TTPs
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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:
Purchase - Order.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion Purchase - Order.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion Purchase - Order.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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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Purchase - Order.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\lfEDL = "C:\\Users\\Admin\\AppData\\Roaming\\lfEDL\\lfEDL.exe" Purchase - Order.exe -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
Purchase - Order.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum Purchase - Order.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 Purchase - Order.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Purchase - Order.exedescription pid process target process PID 1028 set thread context of 1292 1028 Purchase - Order.exe Purchase - Order.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:
Purchase - Order.exePurchase - Order.exepid process 1028 Purchase - Order.exe 1292 Purchase - Order.exe 1292 Purchase - Order.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Purchase - Order.exePurchase - Order.exedescription pid process Token: SeDebugPrivilege 1028 Purchase - Order.exe Token: SeDebugPrivilege 1292 Purchase - Order.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Purchase - Order.exepid process 1292 Purchase - Order.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
Purchase - Order.exedescription pid process target process PID 1028 wrote to memory of 568 1028 Purchase - Order.exe schtasks.exe PID 1028 wrote to memory of 568 1028 Purchase - Order.exe schtasks.exe PID 1028 wrote to memory of 568 1028 Purchase - Order.exe schtasks.exe PID 1028 wrote to memory of 568 1028 Purchase - Order.exe schtasks.exe PID 1028 wrote to memory of 1292 1028 Purchase - Order.exe Purchase - Order.exe PID 1028 wrote to memory of 1292 1028 Purchase - Order.exe Purchase - Order.exe PID 1028 wrote to memory of 1292 1028 Purchase - Order.exe Purchase - Order.exe PID 1028 wrote to memory of 1292 1028 Purchase - Order.exe Purchase - Order.exe PID 1028 wrote to memory of 1292 1028 Purchase - Order.exe Purchase - Order.exe PID 1028 wrote to memory of 1292 1028 Purchase - Order.exe Purchase - Order.exe PID 1028 wrote to memory of 1292 1028 Purchase - Order.exe Purchase - Order.exe PID 1028 wrote to memory of 1292 1028 Purchase - Order.exe Purchase - Order.exe PID 1028 wrote to memory of 1292 1028 Purchase - Order.exe Purchase - Order.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Purchase - Order.exe"C:\Users\Admin\AppData\Local\Temp\Purchase - Order.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
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wzqcOpgNYsw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1600.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Purchase - Order.exe"{path}"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp1600.tmpMD5
1b1e76222f9b11a47150f06bfba4c8ad
SHA1d637f1bb898216c6d23cc30cc8a41dd59efd36d1
SHA256a63ce437a015b94e8d0fa2e89e473dce4f43dfafad6915f048235f518dfb12e7
SHA5127abc08569545a1caf40dbab17fb9d26cb5faa0a417786651f005d68df9a22e8e791fe77554213a46506a89cf63a0fe28fdfba9cc4b14047cdccde094ce202171
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memory/568-66-0x0000000000000000-mapping.dmp
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memory/1028-60-0x0000000000840000-0x0000000000841000-memory.dmpFilesize
4KB
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memory/1028-62-0x0000000004D40000-0x0000000004D41000-memory.dmpFilesize
4KB
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memory/1028-63-0x0000000000430000-0x0000000000432000-memory.dmpFilesize
8KB
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memory/1028-64-0x0000000005CD0000-0x0000000005D52000-memory.dmpFilesize
520KB
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memory/1028-65-0x0000000004FE0000-0x000000000501D000-memory.dmpFilesize
244KB
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memory/1292-68-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1292-69-0x000000000043784E-mapping.dmp
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memory/1292-70-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1292-72-0x0000000004D10000-0x0000000004D11000-memory.dmpFilesize
4KB
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memory/1292-73-0x0000000004D11000-0x0000000004D12000-memory.dmpFilesize
4KB