Analysis
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max time kernel
151s -
max time network
180s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
25-06-2022 05:04
Static task
static1
Behavioral task
behavioral1
Sample
8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe
Resource
win7-20220414-en
General
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Target
8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe
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Size
608KB
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MD5
8152cac14bc11bd6c1b8a96815210daf
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SHA1
d724292b5cf0cfc479f06f8fa61bfd78cab782b2
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SHA256
8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3
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SHA512
9531a28c23a1b94c178f9cc226c6d5530efcc8b17708fd27395f4388a36de5abcc822c065df2b06a7fecc9c7628c6bfa8d15fb507904da96f4c888a5546c7d90
Malware Config
Extracted
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
divi@accauto.co - Password:
7213575aceACE$
Signatures
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NirSoft MailPassView 5 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral2/memory/5056-133-0x0000000000400000-0x0000000000484000-memory.dmp MailPassView behavioral2/memory/3244-140-0x0000000000000000-mapping.dmp MailPassView behavioral2/memory/3244-141-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/3244-143-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/3244-144-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 6 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral2/memory/5056-133-0x0000000000400000-0x0000000000484000-memory.dmp WebBrowserPassView behavioral2/memory/2816-145-0x0000000000000000-mapping.dmp WebBrowserPassView behavioral2/memory/2816-146-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/2816-148-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/2816-149-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/2816-151-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 10 IoCs
Processes:
resource yara_rule behavioral2/memory/5056-133-0x0000000000400000-0x0000000000484000-memory.dmp Nirsoft behavioral2/memory/3244-140-0x0000000000000000-mapping.dmp Nirsoft behavioral2/memory/3244-141-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/3244-143-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/3244-144-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/2816-145-0x0000000000000000-mapping.dmp Nirsoft behavioral2/memory/2816-146-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/2816-148-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/2816-149-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/2816-151-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 36 whatismyipaddress.com 33 whatismyipaddress.com -
Suspicious use of SetThreadContext 3 IoCs
Processes:
8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exeRegAsm.exedescription pid process target process PID 2512 set thread context of 5056 2512 8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe RegAsm.exe PID 5056 set thread context of 3244 5056 RegAsm.exe vbc.exe PID 5056 set thread context of 2816 5056 RegAsm.exe vbc.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exevbc.exepid process 2512 8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe 2512 8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe 2512 8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe 2512 8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe 2512 8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe 2512 8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe 2512 8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe 2512 8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe 2816 vbc.exe 2816 vbc.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exepid process 2512 8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegAsm.exedescription pid process Token: SeDebugPrivilege 5056 RegAsm.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
RegAsm.exepid process 5056 RegAsm.exe -
Suspicious use of WriteProcessMemory 22 IoCs
Processes:
8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exeRegAsm.exedescription pid process target process PID 2512 wrote to memory of 5056 2512 8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe RegAsm.exe PID 2512 wrote to memory of 5056 2512 8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe RegAsm.exe PID 2512 wrote to memory of 5056 2512 8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe RegAsm.exe PID 2512 wrote to memory of 5056 2512 8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe RegAsm.exe PID 5056 wrote to memory of 3244 5056 RegAsm.exe vbc.exe PID 5056 wrote to memory of 3244 5056 RegAsm.exe vbc.exe PID 5056 wrote to memory of 3244 5056 RegAsm.exe vbc.exe PID 5056 wrote to memory of 3244 5056 RegAsm.exe vbc.exe PID 5056 wrote to memory of 3244 5056 RegAsm.exe vbc.exe PID 5056 wrote to memory of 3244 5056 RegAsm.exe vbc.exe PID 5056 wrote to memory of 3244 5056 RegAsm.exe vbc.exe PID 5056 wrote to memory of 3244 5056 RegAsm.exe vbc.exe PID 5056 wrote to memory of 3244 5056 RegAsm.exe vbc.exe PID 5056 wrote to memory of 2816 5056 RegAsm.exe vbc.exe PID 5056 wrote to memory of 2816 5056 RegAsm.exe vbc.exe PID 5056 wrote to memory of 2816 5056 RegAsm.exe vbc.exe PID 5056 wrote to memory of 2816 5056 RegAsm.exe vbc.exe PID 5056 wrote to memory of 2816 5056 RegAsm.exe vbc.exe PID 5056 wrote to memory of 2816 5056 RegAsm.exe vbc.exe PID 5056 wrote to memory of 2816 5056 RegAsm.exe vbc.exe PID 5056 wrote to memory of 2816 5056 RegAsm.exe vbc.exe PID 5056 wrote to memory of 2816 5056 RegAsm.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe"C:\Users\Admin\AppData\Local\Temp\8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Users\Admin\AppData\Local\Temp\8776a4ee8b6b13af9c666e4f6e55c7d970cb72d2f507f4fa6781fe7b94d390a3.exe"2⤵
- Suspicious use of SetThreadContext
- 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⤵
- Suspicious behavior: EnumeratesProcesses
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\holderwb.txtFilesize
3KB
MD5f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196
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memory/2512-130-0x00000000002E0000-0x000000000037E000-memory.dmpFilesize
632KB
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memory/2512-132-0x00000000002E0000-0x000000000037E000-memory.dmpFilesize
632KB
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memory/2816-151-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/2816-149-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/2816-148-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/2816-146-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/2816-145-0x0000000000000000-mapping.dmp
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memory/3244-140-0x0000000000000000-mapping.dmp
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memory/3244-141-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/3244-143-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/3244-144-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/5056-139-0x0000000009360000-0x00000000093C6000-memory.dmpFilesize
408KB
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memory/5056-138-0x0000000005210000-0x0000000005266000-memory.dmpFilesize
344KB
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memory/5056-137-0x0000000005060000-0x000000000506A000-memory.dmpFilesize
40KB
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memory/5056-136-0x00000000050B0000-0x0000000005142000-memory.dmpFilesize
584KB
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memory/5056-135-0x00000000055C0000-0x0000000005B64000-memory.dmpFilesize
5.6MB
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memory/5056-134-0x0000000004F70000-0x000000000500C000-memory.dmpFilesize
624KB
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memory/5056-133-0x0000000000400000-0x0000000000484000-memory.dmpFilesize
528KB
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memory/5056-131-0x0000000000000000-mapping.dmp