Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
04-06-2024 10:23
Static task
static1
Behavioral task
behavioral1
Sample
Invoice.pdf.scr
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Invoice.pdf.scr
Resource
win10v2004-20240508-en
Behavioral task
behavioral3
Sample
Itemslists.scr
Resource
win7-20240508-en
Behavioral task
behavioral4
Sample
Itemslists.scr
Resource
win10v2004-20240426-en
Behavioral task
behavioral5
Sample
Pictures.jpg.scr
Resource
win7-20231129-en
General
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Target
Pictures.jpg.scr
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Size
710KB
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MD5
281198c4b0cf5277fb57896af997ada3
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SHA1
3066e53d111ee159ece9ecd4edc977a1a38decc5
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SHA256
6e9b80abff99f9ce1d477c30f23c7ab327c1d5fef3edda5f68497aacd35ae03b
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SHA512
334e2cc90289c1a79fdbbd115397a1a6f888aa370f9059ef3783fe984f6e844cac1615a41932c458a2cab24e39d7a0cb81cd5cb8465e9c18056b879095f118b8
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SSDEEP
12288:Ag77dUJtsrMEH4o8zFQdQVH82YpJCRLtlfNctwgK85V0s9vxnCxtHe6O5n+vToVe:AgOJK4o8JQeH82YpJCR7NctDKrshW0Ve
Malware Config
Extracted
Protocol: smtp- Host:
smtp.privateemail.com - Port:
587 - Username:
[email protected] - Password:
coronavirus2020
Signatures
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Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions Pictures.jpg.scr -
NirSoft MailPassView 8 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral5/memory/2832-14-0x0000000000400000-0x0000000000488000-memory.dmp MailPassView behavioral5/memory/2832-16-0x0000000000400000-0x0000000000488000-memory.dmp MailPassView behavioral5/memory/2832-24-0x0000000000400000-0x0000000000488000-memory.dmp MailPassView behavioral5/memory/2832-21-0x0000000000400000-0x0000000000488000-memory.dmp MailPassView behavioral5/memory/2832-19-0x0000000000400000-0x0000000000488000-memory.dmp MailPassView behavioral5/memory/2844-29-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral5/memory/2844-30-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral5/memory/2844-32-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 8 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral5/memory/2832-14-0x0000000000400000-0x0000000000488000-memory.dmp WebBrowserPassView behavioral5/memory/2832-16-0x0000000000400000-0x0000000000488000-memory.dmp WebBrowserPassView behavioral5/memory/2832-24-0x0000000000400000-0x0000000000488000-memory.dmp WebBrowserPassView behavioral5/memory/2832-21-0x0000000000400000-0x0000000000488000-memory.dmp WebBrowserPassView behavioral5/memory/2832-19-0x0000000000400000-0x0000000000488000-memory.dmp WebBrowserPassView behavioral5/memory/1884-34-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral5/memory/1884-38-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral5/memory/1884-33-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 11 IoCs
resource yara_rule behavioral5/memory/2832-14-0x0000000000400000-0x0000000000488000-memory.dmp Nirsoft behavioral5/memory/2832-16-0x0000000000400000-0x0000000000488000-memory.dmp Nirsoft behavioral5/memory/2832-24-0x0000000000400000-0x0000000000488000-memory.dmp Nirsoft behavioral5/memory/2832-21-0x0000000000400000-0x0000000000488000-memory.dmp Nirsoft behavioral5/memory/2832-19-0x0000000000400000-0x0000000000488000-memory.dmp Nirsoft behavioral5/memory/2844-29-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral5/memory/2844-30-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral5/memory/2844-32-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral5/memory/1884-34-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral5/memory/1884-38-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral5/memory/1884-33-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
Looks for VMWare Tools registry key 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools Pictures.jpg.scr -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion Pictures.jpg.scr Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion Pictures.jpg.scr -
Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\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.
flow ioc 4 whatismyipaddress.com 6 whatismyipaddress.com -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum Pictures.jpg.scr Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 Pictures.jpg.scr -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 2244 set thread context of 2832 2244 Pictures.jpg.scr 33 PID 2832 set thread context of 2844 2832 MSBuild.exe 34 PID 2832 set thread context of 1884 2832 MSBuild.exe 35 -
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.
pid Process 2824 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2832 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2832 MSBuild.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2832 MSBuild.exe -
Suspicious use of WriteProcessMemory 33 IoCs
description pid Process procid_target PID 2244 wrote to memory of 2824 2244 Pictures.jpg.scr 31 PID 2244 wrote to memory of 2824 2244 Pictures.jpg.scr 31 PID 2244 wrote to memory of 2824 2244 Pictures.jpg.scr 31 PID 2244 wrote to memory of 2824 2244 Pictures.jpg.scr 31 PID 2244 wrote to memory of 2832 2244 Pictures.jpg.scr 33 PID 2244 wrote to memory of 2832 2244 Pictures.jpg.scr 33 PID 2244 wrote to memory of 2832 2244 Pictures.jpg.scr 33 PID 2244 wrote to memory of 2832 2244 Pictures.jpg.scr 33 PID 2244 wrote to memory of 2832 2244 Pictures.jpg.scr 33 PID 2244 wrote to memory of 2832 2244 Pictures.jpg.scr 33 PID 2244 wrote to memory of 2832 2244 Pictures.jpg.scr 33 PID 2244 wrote to memory of 2832 2244 Pictures.jpg.scr 33 PID 2244 wrote to memory of 2832 2244 Pictures.jpg.scr 33 PID 2832 wrote to memory of 2844 2832 MSBuild.exe 34 PID 2832 wrote to memory of 2844 2832 MSBuild.exe 34 PID 2832 wrote to memory of 2844 2832 MSBuild.exe 34 PID 2832 wrote to memory of 2844 2832 MSBuild.exe 34 PID 2832 wrote to memory of 2844 2832 MSBuild.exe 34 PID 2832 wrote to memory of 2844 2832 MSBuild.exe 34 PID 2832 wrote to memory of 2844 2832 MSBuild.exe 34 PID 2832 wrote to memory of 2844 2832 MSBuild.exe 34 PID 2832 wrote to memory of 2844 2832 MSBuild.exe 34 PID 2832 wrote to memory of 2844 2832 MSBuild.exe 34 PID 2832 wrote to memory of 1884 2832 MSBuild.exe 35 PID 2832 wrote to memory of 1884 2832 MSBuild.exe 35 PID 2832 wrote to memory of 1884 2832 MSBuild.exe 35 PID 2832 wrote to memory of 1884 2832 MSBuild.exe 35 PID 2832 wrote to memory of 1884 2832 MSBuild.exe 35 PID 2832 wrote to memory of 1884 2832 MSBuild.exe 35 PID 2832 wrote to memory of 1884 2832 MSBuild.exe 35 PID 2832 wrote to memory of 1884 2832 MSBuild.exe 35 PID 2832 wrote to memory of 1884 2832 MSBuild.exe 35 PID 2832 wrote to memory of 1884 2832 MSBuild.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\Pictures.jpg.scr"C:\Users\Admin\AppData\Local\Temp\Pictures.jpg.scr" /S1⤵
- 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
PID:2244 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vTbjPEGI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDC6.tmp"2⤵
- Creates scheduled task(s)
PID:2824
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2832 -
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
PID:2844
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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⤵PID:1884
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b
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Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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Filesize
1KB
MD55d061b161d009f64b75ff16f26b4b926
SHA1fb5b7730ad69e5828c1f84949a93bff77a27cae0
SHA2566e587c418bda8a7670079f7a6e69c8a861a014a9f5da2f661d08868c9b312fee
SHA5129a68a69347b6a2dec5cdffc89c91cb3f0937dee8a448da583cc375a0e52719c7429e648a93dc81fc921f804fc5d7673bb5d1aa0332c504e2190f8e51986ac7aa