Analysis
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max time kernel
98s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
24/04/2022, 13:47
Static task
static1
Behavioral task
behavioral1
Sample
373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe
Resource
win10v2004-20220414-en
General
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Target
373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe
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Size
727KB
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MD5
258db065e78278e7f5bf235ee54e96c2
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SHA1
c2aa27c506115868507707c971f43ae3313c9c11
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SHA256
373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502
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SHA512
163ddaaad60458aed9d747aff241a38ece5d262b55687c43afd14635aeeb34e7e594b4494f08c9c5efbe0466f3aecc43fa5e49ffbf77d22abb5000f525afa9c5
Malware Config
Extracted
djvu
http://fuyt.org/fhsgtsspen6/get.php
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extension
.dmay
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offline_id
Xe4NOamOTHZrARTiL9dfVzAylFrEWLGGbr2dngt1
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payload_url
http://zerit.top/dl/build2.exe
http://fuyt.org/files/1/build3.exe
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ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-FT7BNVbXC9 Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0458JIjdm
Extracted
vidar
51.8
517
https://t.me/mm20220428
https://koyu.space/@ronxik123
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profile_id
517
Signatures
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Detected Djvu ransomware 8 IoCs
resource yara_rule behavioral1/memory/3308-131-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3308-132-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3116-134-0x0000000002230000-0x000000000234B000-memory.dmp family_djvu behavioral1/memory/3308-135-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3308-136-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3060-142-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3060-144-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3060-145-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
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Vidar Stealer 5 IoCs
resource yara_rule behavioral1/memory/4156-151-0x0000000000400000-0x000000000044C000-memory.dmp family_vidar behavioral1/memory/4156-154-0x0000000000400000-0x000000000044C000-memory.dmp family_vidar behavioral1/memory/4156-156-0x0000000000400000-0x000000000044C000-memory.dmp family_vidar behavioral1/memory/3192-155-0x0000000002090000-0x00000000020D9000-memory.dmp family_vidar behavioral1/memory/4156-157-0x0000000000400000-0x000000000044C000-memory.dmp family_vidar -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
pid Process 3192 build2.exe 4156 build2.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe -
Loads dropped DLL 2 IoCs
pid Process 4156 build2.exe 4156 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 2116 icacls.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\047438fe-ecfd-43b2-a240-793dd157176e\\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe\" --AutoStart" 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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.
flow ioc 5 api.2ip.ua 20 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 3116 set thread context of 3308 3116 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 80 PID 5036 set thread context of 3060 5036 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 90 PID 3192 set thread context of 4156 3192 build2.exe 93 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 build2.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 build2.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 3308 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 3308 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 3060 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 3060 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 4156 build2.exe 4156 build2.exe 4156 build2.exe 4156 build2.exe 4156 build2.exe 4156 build2.exe 4156 build2.exe 4156 build2.exe -
Suspicious use of WriteProcessMemory 37 IoCs
description pid Process procid_target PID 3116 wrote to memory of 3308 3116 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 80 PID 3116 wrote to memory of 3308 3116 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 80 PID 3116 wrote to memory of 3308 3116 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 80 PID 3116 wrote to memory of 3308 3116 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 80 PID 3116 wrote to memory of 3308 3116 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 80 PID 3116 wrote to memory of 3308 3116 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 80 PID 3116 wrote to memory of 3308 3116 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 80 PID 3116 wrote to memory of 3308 3116 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 80 PID 3116 wrote to memory of 3308 3116 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 80 PID 3116 wrote to memory of 3308 3116 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 80 PID 3308 wrote to memory of 2116 3308 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 87 PID 3308 wrote to memory of 2116 3308 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 87 PID 3308 wrote to memory of 2116 3308 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 87 PID 3308 wrote to memory of 5036 3308 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 88 PID 3308 wrote to memory of 5036 3308 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 88 PID 3308 wrote to memory of 5036 3308 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 88 PID 5036 wrote to memory of 3060 5036 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 90 PID 5036 wrote to memory of 3060 5036 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 90 PID 5036 wrote to memory of 3060 5036 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 90 PID 5036 wrote to memory of 3060 5036 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 90 PID 5036 wrote to memory of 3060 5036 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 90 PID 5036 wrote to memory of 3060 5036 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 90 PID 5036 wrote to memory of 3060 5036 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 90 PID 5036 wrote to memory of 3060 5036 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 90 PID 5036 wrote to memory of 3060 5036 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 90 PID 5036 wrote to memory of 3060 5036 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 90 PID 3060 wrote to memory of 3192 3060 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 92 PID 3060 wrote to memory of 3192 3060 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 92 PID 3060 wrote to memory of 3192 3060 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe 92 PID 3192 wrote to memory of 4156 3192 build2.exe 93 PID 3192 wrote to memory of 4156 3192 build2.exe 93 PID 3192 wrote to memory of 4156 3192 build2.exe 93 PID 3192 wrote to memory of 4156 3192 build2.exe 93 PID 3192 wrote to memory of 4156 3192 build2.exe 93 PID 3192 wrote to memory of 4156 3192 build2.exe 93 PID 3192 wrote to memory of 4156 3192 build2.exe 93 PID 3192 wrote to memory of 4156 3192 build2.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe"C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3116 -
C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe"C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3308 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\047438fe-ecfd-43b2-a240-793dd157176e" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:2116
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C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe"C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5036 -
C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe"C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3060 -
C:\Users\Admin\AppData\Local\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\build2.exe"C:\Users\Admin\AppData\Local\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3192 -
C:\Users\Admin\AppData\Local\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\build2.exe"C:\Users\Admin\AppData\Local\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\build2.exe"6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4156
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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
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C:\Users\Admin\AppData\Local\047438fe-ecfd-43b2-a240-793dd157176e\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe
Filesize727KB
MD5258db065e78278e7f5bf235ee54e96c2
SHA1c2aa27c506115868507707c971f43ae3313c9c11
SHA256373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502
SHA512163ddaaad60458aed9d747aff241a38ece5d262b55687c43afd14635aeeb34e7e594b4494f08c9c5efbe0466f3aecc43fa5e49ffbf77d22abb5000f525afa9c5
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Filesize
368KB
MD5ad1b502b6714c0a374b055332018974b
SHA1672f4e44475177ddcb1bfa73db3c5dee0f031bc2
SHA256f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95
SHA5120197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e
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Filesize
368KB
MD5ad1b502b6714c0a374b055332018974b
SHA1672f4e44475177ddcb1bfa73db3c5dee0f031bc2
SHA256f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95
SHA5120197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e
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Filesize
368KB
MD5ad1b502b6714c0a374b055332018974b
SHA1672f4e44475177ddcb1bfa73db3c5dee0f031bc2
SHA256f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95
SHA5120197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e