Analysis
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max time kernel
122s -
max time network
124s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
09-11-2020 20:21
General
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Target
Order_8383747_list.pdf.exe
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Size
494KB
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MD5
e06836b92d0549a209b5fdc76478ed5e
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SHA1
fd399b3d85388b44a9e7ab21eb0131f0498364bb
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SHA256
67819aacac4994b55659a8f7924ec0384e667ee74fe5b431a731ac5baf69448c
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SHA512
292802a00030afc4c2151b527c73aca7a4574678b87713ce981aeca10562e5546318d8fd373bdc6f3741a1c12d6be2dfef28699aa5eae911a1f37cd2e8454e1d
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
premium57.web-hosting.com - Port:
587 - Username:
support@zoomexpress.online - Password:
Goodboy123??
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 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
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AgentTesla Payload 4 IoCs
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rezer0 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
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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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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 SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 13 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Order_8383747_list.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Order_8383747_list.pdf.exe"1⤵
- 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\zUsjtTaD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1FD0.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Order_8383747_list.pdf.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp1FD0.tmpMD5
a234b2583e99043c9ef45ba7da591323
SHA1a8f77116371fc40bebdd4bce8de08e69c8638360
SHA25680d682ddc926e1c3f50cf30f4de525832afef885365357beded6f097bb4a2470
SHA51215fbbd852bd5cc46b49fb0a471460a13443f451d21298358b1db62a83e901d28ce7141708c4344b2ccf067a6cc00b3b8d6e055cba5d4ba0777abca2b9767a70a
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memory/360-15-0x0000000000400000-0x0000000000450000-memory.dmpFilesize
320KB
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memory/360-16-0x000000000044B9CE-mapping.dmp
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memory/360-17-0x0000000000400000-0x0000000000450000-memory.dmpFilesize
320KB
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memory/360-18-0x0000000000400000-0x0000000000450000-memory.dmpFilesize
320KB
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memory/360-19-0x00000000741A0000-0x000000007488E000-memory.dmpFilesize
6.9MB
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memory/1068-0-0x00000000741A0000-0x000000007488E000-memory.dmpFilesize
6.9MB
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memory/1068-1-0x0000000000B50000-0x0000000000B51000-memory.dmpFilesize
4KB
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memory/1068-3-0x0000000000600000-0x000000000065D000-memory.dmpFilesize
372KB
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memory/1068-9-0x00000000003A0000-0x00000000003A2000-memory.dmpFilesize
8KB
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memory/1068-10-0x0000000000AF0000-0x0000000000B42000-memory.dmpFilesize
328KB
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memory/1700-12-0x0000000000000000-mapping.dmp