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Analysis
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max time kernel
142s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
26/12/2022, 17:43
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
General
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Target
file.exe
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Size
583KB
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MD5
bac22670cdf54898180a97af5167354b
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SHA1
0fbd7308d065e0f2bd13f367e5973595a8faca9c
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SHA256
ef9e2642cd75317c8491019600beeab1274892682829954e7339f847de5b22b5
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SHA512
a7ab2456a26046675ce596b1d0b53d7caf9dc93d933b88d5e82f5c8d71c5f9eb83ba58cd47852e5d742ff5a1739d9f87213389058cd917a908a5238c7aad78dd
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SSDEEP
12288:lk8yqhhsVLrhXPrid6UI5SZD/trT1un6DlS7AZHUquav76T5l:zgLd2dFTYn6xQACqS
Malware Config
Signatures
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Loads dropped DLL 2 IoCs
pid Process 3504 vbc.exe 3504 vbc.exe -
Uses the VBS compiler for execution 1 TTPs
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3424 set thread context of 3504 3424 file.exe 81 -
Program crash 1 IoCs
pid pid_target Process procid_target 1216 3424 WerFault.exe 79 -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString vbc.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 vbc.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 1328 timeout.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3504 vbc.exe 3504 vbc.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3424 wrote to memory of 3504 3424 file.exe 81 PID 3424 wrote to memory of 3504 3424 file.exe 81 PID 3424 wrote to memory of 3504 3424 file.exe 81 PID 3424 wrote to memory of 3504 3424 file.exe 81 PID 3424 wrote to memory of 3504 3424 file.exe 81 PID 3504 wrote to memory of 3484 3504 vbc.exe 85 PID 3504 wrote to memory of 3484 3504 vbc.exe 85 PID 3504 wrote to memory of 3484 3504 vbc.exe 85 PID 3484 wrote to memory of 1328 3484 cmd.exe 87 PID 3484 wrote to memory of 1328 3484 cmd.exe 87 PID 3484 wrote to memory of 1328 3484 cmd.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3424 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3504 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:3484 -
C:\Windows\SysWOW64\timeout.exetimeout /t 64⤵
- Delays execution with timeout.exe
PID:1328
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3424 -s 2402⤵
- Program crash
PID:1216
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3424 -ip 34241⤵PID:4956
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
133KB
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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Filesize
1.2MB
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66