Analysis
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max time kernel
92s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
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submitted
08-12-2022 08:51
General
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Target
New_PO #1783919939-12-2022 RFQ Amended.exe
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Size
880KB
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MD5
4539061d908b8efb290f3d8326482324
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SHA1
cfb842136aaee73a35801e60eb898aeb7df7d5c7
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SHA256
66e8893d8742feb4cf59cba5705d0ed26ec79f7287c873e56b4216b71903af81
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SHA512
e2c805525fc16a243550c633dcb97e5ff28b81652cfa08b79543ae4d065c80b04a637188d559ad659c97be1d3ae8ace907d0c222f16b10ff95ff2a3b8759a4eb
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SSDEEP
24576:9HZFWD/I1REDicfWwQXGTPcABRGrnyzccWwg5+RbZV:q/IkZfWwQXMc3yjee1
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.tegzw-com.cf - Port:
587 - Username:
[email protected] - Password:
k6C[HUoih&9&
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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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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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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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 6 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\New_PO #1783919939-12-2022 RFQ Amended.exe"C:\Users\Admin\AppData\Local\Temp\New_PO #1783919939-12-2022 RFQ Amended.exe"1⤵
- Checks computer location settings
- 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\glzaui" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC8FD.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\New_PO #1783919939-12-2022 RFQ Amended.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\New_PO #1783919939-12-2022 RFQ Amended.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD584e77a587d94307c0ac1357eb4d3d46f
SHA183cc900f9401f43d181207d64c5adba7a85edc1e
SHA256e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99
SHA512aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691
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Filesize
1KB
MD537abea630df2ab7fb23a190be0c68278
SHA171e4f36b373f12a7c658330460796905c0ab5244
SHA256555343e08bbc875786be9caa06f664dc2ee3355885a603d60cce2f09af646130
SHA51203b4fd4562f137fe49d3aaae383ad73d9c9bc1486d367e5d5f909031f685ecd3d792fc0c642a06d747f8d033713652593d8f2b7120cf48071bbc2cbe9e8dcbff
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Filesize
184KB
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Filesize
408KB
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Filesize
320KB
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Filesize
40KB
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Filesize
624KB
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Filesize
584KB
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Filesize
904KB
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Filesize
5.6MB