Analysis
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max time kernel
144s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
19/03/2023, 12:51
Static task
static1
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
tmp.exe
Resource
win10v2004-20230220-en
General
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Target
tmp.exe
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Size
430KB
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MD5
c310d4e479589d94b6f948a43624d3e0
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SHA1
46110b16dfea473ed09db50c9688b47020bc39b0
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SHA256
4720007dc50c1eda6f4aaf5ba8eeebb276ecde68bbf1a146fce899aa2b0c0c1c
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SHA512
4c39789d30d6e7c543ef8831a73e017856b08219117123ee5f65636f60819f53cccbdff436f50abb75236b7e73a8ed3a6994d2c63335a382779772fb476071cd
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SSDEEP
6144:SXa7AHRZ/jjmEhQjolEQZu7k0U4ETThwMdCl24c8rufdhzSxucWJBM:ia7WRxjjmEl0k0wThwMsM7rmIckq
Malware Config
Extracted
vidar
3
2548f166286a0b36dbfd9f8a1ac09311
https://t.me/zaskullz
https://steamcommunity.com/profiles/76561199486572327
http://135.181.87.234:80
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profile_id_v2
2548f166286a0b36dbfd9f8a1ac09311
Signatures
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Loads dropped DLL 2 IoCs
pid Process 1056 vbc.exe 1056 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 1068 set thread context of 1056 1068 tmp.exe 86 -
Program crash 1 IoCs
pid pid_target Process procid_target 3788 1056 WerFault.exe 86 -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 vbc.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString vbc.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1056 vbc.exe 1056 vbc.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1068 wrote to memory of 1056 1068 tmp.exe 86 PID 1068 wrote to memory of 1056 1068 tmp.exe 86 PID 1068 wrote to memory of 1056 1068 tmp.exe 86 PID 1068 wrote to memory of 1056 1068 tmp.exe 86 PID 1068 wrote to memory of 1056 1068 tmp.exe 86 PID 1068 wrote to memory of 1056 1068 tmp.exe 86 PID 1068 wrote to memory of 1056 1068 tmp.exe 86 PID 1068 wrote to memory of 1056 1068 tmp.exe 86 PID 1068 wrote to memory of 1056 1068 tmp.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1068 -
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
PID:1056 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1056 -s 18323⤵
- Program crash
PID:3788
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1056 -ip 10561⤵PID:4712
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571