Analysis
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max time kernel
150s -
max time network
132s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
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submitted
02-04-2024 13:54
General
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Target
NO#CU-92504 Xls.exe
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Size
1.1MB
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MD5
59d184058f8e0a314db11d6f07f600fd
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SHA1
5e4b55295fd2b4cc5965fa1e8b322260c5d2a2b6
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SHA256
65df886edbea1a5bc833dba4e8e5126ad6326fa44f49e146a9c4b8b34fe75333
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SHA512
94adda18b842f927693d6831becbb10c249867c466cb3f2659dc1def9ae05024c7d8cf8a4567fc19f5a1c67495a7994010e1e3e3b3f7784f55f8f7916e190d8c
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SSDEEP
24576:mZRToVSu+nsc24YQeP18a5v8UKyd0c7u3yd2OluON4fA9uC:mZRToAu+ns082evFbdLu3yd2OluON4ff
Malware Config
Signatures
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HawkEye
HawkEye is a malware kit that has seen continuous development since at least 2013.
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Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
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NirSoft MailPassView 10 IoCs
Password recovery tool for various email clients
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NirSoft WebBrowserPassView 10 IoCs
Password recovery tool for various web browsers
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Nirsoft 14 IoCs
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Looks for VMWare Tools registry key 2 TTPs 1 IoCs
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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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Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 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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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 3 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 64 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 33 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\NO#CU-92504 Xls.exe"C:\Users\Admin\AppData\Local\Temp\NO#CU-92504 Xls.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pbFphueKZdI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8E1C.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\NO#CU-92504 Xls.exe"{path}"2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"3⤵
- Accesses Microsoft Outlook accounts
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"3⤵
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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Filesize
1KB
MD5750b3e3ca8a6bc89828527805e7e5144
SHA17f74a4e140412af46d7ab5980e5e527fb72d551e
SHA256694044133e37b673d53c9c2fd48f4d2a0d4aed4a7a2d5d8a480055023cbcfdfa
SHA512e68b78af73357416b80c5dff12cadc7b17b85a6024026864566fdd12678145879bdd7b67b94534c9f73546b3b268dab8f43c6d8d43da91d351a6e7705a350ea7
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Filesize
412KB
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Filesize
108KB
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Filesize
108KB
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Filesize
108KB
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Filesize
108KB
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Filesize
256KB
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Filesize
32KB
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Filesize
544KB
-
Filesize
544KB
-
Filesize
544KB
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Filesize
544KB
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Filesize
4KB
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Filesize
544KB
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Filesize
544KB
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Filesize
6.9MB
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Filesize
6.9MB
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Filesize
544KB
-
Filesize
256KB
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Filesize
352KB
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Filesize
352KB
-
Filesize
352KB
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Filesize
352KB
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Filesize
256KB
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Filesize
48KB
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Filesize
1.2MB
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Filesize
256KB
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Filesize
800KB
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Filesize
6.9MB
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Filesize
544KB
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Filesize
6.9MB
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Filesize
6.9MB