Analysis
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max time kernel
120s -
max time network
148s -
platform
windows10_x64 -
resource
win10-20220414-en -
submitted
23/04/2022, 16:32
Static task
static1
Behavioral task
behavioral1
Sample
95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe
Resource
win10-20220414-en
General
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Target
95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe
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Size
726KB
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MD5
5f65c57c4930de406ef6894ea45af24f
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SHA1
5baafb42629d3ed35ab9dc6c92beb2a7a3b34f2f
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SHA256
95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0
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SHA512
3f2db9600daac8e25ddd6ee9da8b0e4d8de76591999bba517d8b9275809c8379294071907d2d16a5ff5d32e9d20555d84cbb42a2ffc524a552c29bc708f4ec4e
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 10 IoCs
resource yara_rule behavioral1/memory/3720-119-0x0000000000424141-mapping.dmp family_djvu behavioral1/memory/3720-118-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3224-121-0x00000000022C0000-0x00000000023DB000-memory.dmp family_djvu behavioral1/memory/3720-120-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3720-122-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3720-123-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2096-129-0x0000000000424141-mapping.dmp family_djvu behavioral1/memory/2096-130-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2096-131-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2096-132-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Vidar Stealer 5 IoCs
resource yara_rule behavioral1/memory/1340-137-0x0000000000400000-0x000000000044C000-memory.dmp family_vidar behavioral1/memory/1340-138-0x000000000042118A-mapping.dmp family_vidar behavioral1/memory/1340-140-0x0000000000400000-0x000000000044C000-memory.dmp family_vidar behavioral1/memory/1340-142-0x0000000000400000-0x000000000044C000-memory.dmp family_vidar behavioral1/memory/1340-143-0x0000000000400000-0x000000000044C000-memory.dmp family_vidar -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
pid Process 4340 build2.exe 1340 build2.exe -
Loads dropped DLL 2 IoCs
pid Process 1340 build2.exe 1340 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4824 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-1-5-21-4236190499-842014725-259441995-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\bda407c1-08cc-4b8d-95e8-f490ddb3027b\\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe\" --AutoStart" 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.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 2 api.2ip.ua 1 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 3224 set thread context of 3720 3224 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 68 PID 4848 set thread context of 2096 4848 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 72 PID 4340 set thread context of 1340 4340 build2.exe 74 -
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 opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 build2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString build2.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 3720 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 3720 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 2096 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 2096 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 1340 build2.exe 1340 build2.exe 1340 build2.exe 1340 build2.exe 1340 build2.exe 1340 build2.exe 1340 build2.exe 1340 build2.exe -
Suspicious use of WriteProcessMemory 37 IoCs
description pid Process procid_target PID 3224 wrote to memory of 3720 3224 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 68 PID 3224 wrote to memory of 3720 3224 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 68 PID 3224 wrote to memory of 3720 3224 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 68 PID 3224 wrote to memory of 3720 3224 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 68 PID 3224 wrote to memory of 3720 3224 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 68 PID 3224 wrote to memory of 3720 3224 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 68 PID 3224 wrote to memory of 3720 3224 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 68 PID 3224 wrote to memory of 3720 3224 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 68 PID 3224 wrote to memory of 3720 3224 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 68 PID 3224 wrote to memory of 3720 3224 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 68 PID 3720 wrote to memory of 4824 3720 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 69 PID 3720 wrote to memory of 4824 3720 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 69 PID 3720 wrote to memory of 4824 3720 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 69 PID 3720 wrote to memory of 4848 3720 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 70 PID 3720 wrote to memory of 4848 3720 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 70 PID 3720 wrote to memory of 4848 3720 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 70 PID 4848 wrote to memory of 2096 4848 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 72 PID 4848 wrote to memory of 2096 4848 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 72 PID 4848 wrote to memory of 2096 4848 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 72 PID 4848 wrote to memory of 2096 4848 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 72 PID 4848 wrote to memory of 2096 4848 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 72 PID 4848 wrote to memory of 2096 4848 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 72 PID 4848 wrote to memory of 2096 4848 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 72 PID 4848 wrote to memory of 2096 4848 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 72 PID 4848 wrote to memory of 2096 4848 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 72 PID 4848 wrote to memory of 2096 4848 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 72 PID 2096 wrote to memory of 4340 2096 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 73 PID 2096 wrote to memory of 4340 2096 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 73 PID 2096 wrote to memory of 4340 2096 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe 73 PID 4340 wrote to memory of 1340 4340 build2.exe 74 PID 4340 wrote to memory of 1340 4340 build2.exe 74 PID 4340 wrote to memory of 1340 4340 build2.exe 74 PID 4340 wrote to memory of 1340 4340 build2.exe 74 PID 4340 wrote to memory of 1340 4340 build2.exe 74 PID 4340 wrote to memory of 1340 4340 build2.exe 74 PID 4340 wrote to memory of 1340 4340 build2.exe 74 PID 4340 wrote to memory of 1340 4340 build2.exe 74
Processes
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C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe"C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3224 -
C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe"C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe"2⤵
- Adds Run key to start application
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3720 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\bda407c1-08cc-4b8d-95e8-f490ddb3027b" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:4824
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C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe"C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4848 -
C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe"C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2096 -
C:\Users\Admin\AppData\Local\1bc8940c-24ff-4146-aa69-df51ba899b87\build2.exe"C:\Users\Admin\AppData\Local\1bc8940c-24ff-4146-aa69-df51ba899b87\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4340 -
C:\Users\Admin\AppData\Local\1bc8940c-24ff-4146-aa69-df51ba899b87\build2.exe"C:\Users\Admin\AppData\Local\1bc8940c-24ff-4146-aa69-df51ba899b87\build2.exe"6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1340
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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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
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C:\Users\Admin\AppData\Local\bda407c1-08cc-4b8d-95e8-f490ddb3027b\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe
Filesize726KB
MD55f65c57c4930de406ef6894ea45af24f
SHA15baafb42629d3ed35ab9dc6c92beb2a7a3b34f2f
SHA25695fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0
SHA5123f2db9600daac8e25ddd6ee9da8b0e4d8de76591999bba517d8b9275809c8379294071907d2d16a5ff5d32e9d20555d84cbb42a2ffc524a552c29bc708f4ec4e
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Filesize
133KB
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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Filesize
1.2MB
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66