Analysis
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max time kernel
143s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 01:30
General
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Target
Arrival551132_XGG1635006pdf.exe
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Size
722KB
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MD5
0f9420abd956257bc58cd6dda5097b66
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SHA1
488a0500f179f9dc3d4a6f81a03e4c1355fc036e
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SHA256
9003935bc497446d14818f11d156c3cd52a891c394ed13d544e30c6dafff1e2a
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SHA512
7f912af19c1da438e13188c9710519d5814798531b857086d71edae9451dc5760cc3e71fc4d06b9c3811894f8ca21d8fba917e6a800cdf31214613b73fa9c972
Malware Config
Extracted
Protocol: smtp- Host:
mail.karmachalets.co.in - Port:
587 - Username:
[email protected] - Password:
Akshya@123
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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AgentTesla Payload 1 IoCs
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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.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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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
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Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
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Suspicious use of SetThreadContext 1 IoCs
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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
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 14 IoCs
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Arrival551132_XGG1635006pdf.exe"C:\Users\Admin\AppData\Local\Temp\Arrival551132_XGG1635006pdf.exe"1⤵
- Checks BIOS information in registry
- Checks computer location settings
- 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\iIVegojK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA59B.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Arrival551132_XGG1635006pdf.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Arrival551132_XGG1635006pdf.exe.logFilesize
1KB
MD55db726e67dbb0e7ce0f11ee0799c44fd
SHA1e3bfb90ae6b7b02ca26bd08fe7f253350196a61e
SHA2562f55491428d6f770a0f1e1e2eb49e0ecfcf78c30403fee75f886bd99031f7d33
SHA5126ebee129cf303f000b8e8df6f320f5209604aca4c258c69b7374c814b2ba5266c868ccbe894ef7212d7125eacc9fbe4d3634b7b0d51e893f8d296cf0fd7d32f3
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C:\Users\Admin\AppData\Local\Temp\tmpA59B.tmpFilesize
1KB
MD513e4e2963d05da7e345f9a3b6787b431
SHA1b2aef56840f5b5285cc69af8bf12428930078c5f
SHA2562da7f31453b731a8e45dadd5f1de659f7c1626f836e729afa965be6740a300dd
SHA51200ced871bd08b217af6625c50112868b52e4a46507743825fb747e8dc7efc2a30cda62e74f2a2db1a390ccf9841adfcfd2efbe7cceb6176a88bce6e76cd7165f
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memory/1692-136-0x0000000000000000-mapping.dmp
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memory/2564-141-0x0000000000000000-mapping.dmp
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memory/4220-133-0x0000000004F00000-0x0000000004F0A000-memory.dmpFilesize
40KB
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memory/4220-135-0x0000000008C10000-0x0000000008C76000-memory.dmpFilesize
408KB
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memory/4220-134-0x0000000008E20000-0x0000000008EBC000-memory.dmpFilesize
624KB
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memory/4220-130-0x0000000000490000-0x000000000054A000-memory.dmpFilesize
744KB
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memory/4220-132-0x0000000004F70000-0x0000000005002000-memory.dmpFilesize
584KB
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memory/4220-131-0x0000000005480000-0x0000000005A24000-memory.dmpFilesize
5.6MB
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memory/4328-138-0x0000000000000000-mapping.dmp
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memory/4328-139-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/4328-142-0x0000000006830000-0x0000000006880000-memory.dmpFilesize
320KB