Analysis
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max time kernel
72s -
max time network
133s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-04-2022 23:50
Static task
static1
Behavioral task
behavioral1
Sample
buildp.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
buildp.exe
Resource
win10v2004-20220414-en
General
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Target
buildp.exe
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Size
841KB
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MD5
efed57771cb41fdde63781d1e195912c
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SHA1
a71b0545951c99eb6ad4a50c22d02c958003d920
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SHA256
72cd1426f13a698c7d63a288f4920147812303e8f10a4e66e414cc7c2206381d
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SHA512
6fd84f80ba5f3c53f48a6a0135cedc7b489cca419742e043116468bcda0898398dd7ddff4ac7d0d8b283312d4c411790b8ff74276f14016021597498b306a080
Malware Config
Extracted
djvu
http://fuyt.org/lancer/get.php
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extension
.gtys
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offline_id
qwVQoIsE2xLety0oNWloOilSDuIBXJGK86LM3ot1
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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-fnn5kv33Vv 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: 0439JIjdm
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/1376-56-0x0000000000424141-mapping.dmp family_djvu behavioral1/memory/1376-55-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1672-59-0x0000000001DC0000-0x0000000001EDB000-memory.dmp family_djvu behavioral1/memory/1376-61-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1376-62-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1612-68-0x0000000000424141-mapping.dmp family_djvu behavioral1/memory/1612-72-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1612-73-0x0000000000400000-0x0000000000537000-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/880-81-0x000000000042118A-mapping.dmp family_vidar behavioral1/memory/880-80-0x0000000000400000-0x000000000044C000-memory.dmp family_vidar behavioral1/memory/1064-85-0x0000000000220000-0x0000000000269000-memory.dmp family_vidar behavioral1/memory/880-87-0x0000000000400000-0x000000000044C000-memory.dmp family_vidar behavioral1/memory/880-88-0x0000000000400000-0x000000000044C000-memory.dmp family_vidar -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
pid Process 1064 build2.exe 880 build2.exe -
Loads dropped DLL 2 IoCs
pid Process 1612 buildp.exe 1612 buildp.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 2016 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\ad5435c4-1fdb-4d53-9a99-0c3fc3f9ad51\\buildp.exe\" --AutoStart" buildp.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 3 api.2ip.ua 8 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 1672 set thread context of 1376 1672 buildp.exe 28 PID 1792 set thread context of 1612 1792 buildp.exe 33 PID 1064 set thread context of 880 1064 build2.exe 36 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 buildp.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 buildp.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 buildp.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1376 buildp.exe 1376 buildp.exe 1612 buildp.exe 1612 buildp.exe -
Suspicious use of WriteProcessMemory 43 IoCs
description pid Process procid_target PID 1672 wrote to memory of 1376 1672 buildp.exe 28 PID 1672 wrote to memory of 1376 1672 buildp.exe 28 PID 1672 wrote to memory of 1376 1672 buildp.exe 28 PID 1672 wrote to memory of 1376 1672 buildp.exe 28 PID 1672 wrote to memory of 1376 1672 buildp.exe 28 PID 1672 wrote to memory of 1376 1672 buildp.exe 28 PID 1672 wrote to memory of 1376 1672 buildp.exe 28 PID 1672 wrote to memory of 1376 1672 buildp.exe 28 PID 1672 wrote to memory of 1376 1672 buildp.exe 28 PID 1672 wrote to memory of 1376 1672 buildp.exe 28 PID 1672 wrote to memory of 1376 1672 buildp.exe 28 PID 1376 wrote to memory of 2016 1376 buildp.exe 31 PID 1376 wrote to memory of 2016 1376 buildp.exe 31 PID 1376 wrote to memory of 2016 1376 buildp.exe 31 PID 1376 wrote to memory of 2016 1376 buildp.exe 31 PID 1376 wrote to memory of 1792 1376 buildp.exe 32 PID 1376 wrote to memory of 1792 1376 buildp.exe 32 PID 1376 wrote to memory of 1792 1376 buildp.exe 32 PID 1376 wrote to memory of 1792 1376 buildp.exe 32 PID 1792 wrote to memory of 1612 1792 buildp.exe 33 PID 1792 wrote to memory of 1612 1792 buildp.exe 33 PID 1792 wrote to memory of 1612 1792 buildp.exe 33 PID 1792 wrote to memory of 1612 1792 buildp.exe 33 PID 1792 wrote to memory of 1612 1792 buildp.exe 33 PID 1792 wrote to memory of 1612 1792 buildp.exe 33 PID 1792 wrote to memory of 1612 1792 buildp.exe 33 PID 1792 wrote to memory of 1612 1792 buildp.exe 33 PID 1792 wrote to memory of 1612 1792 buildp.exe 33 PID 1792 wrote to memory of 1612 1792 buildp.exe 33 PID 1792 wrote to memory of 1612 1792 buildp.exe 33 PID 1612 wrote to memory of 1064 1612 buildp.exe 35 PID 1612 wrote to memory of 1064 1612 buildp.exe 35 PID 1612 wrote to memory of 1064 1612 buildp.exe 35 PID 1612 wrote to memory of 1064 1612 buildp.exe 35 PID 1064 wrote to memory of 880 1064 build2.exe 36 PID 1064 wrote to memory of 880 1064 build2.exe 36 PID 1064 wrote to memory of 880 1064 build2.exe 36 PID 1064 wrote to memory of 880 1064 build2.exe 36 PID 1064 wrote to memory of 880 1064 build2.exe 36 PID 1064 wrote to memory of 880 1064 build2.exe 36 PID 1064 wrote to memory of 880 1064 build2.exe 36 PID 1064 wrote to memory of 880 1064 build2.exe 36 PID 1064 wrote to memory of 880 1064 build2.exe 36
Processes
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C:\Users\Admin\AppData\Local\Temp\buildp.exe"C:\Users\Admin\AppData\Local\Temp\buildp.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1672 -
C:\Users\Admin\AppData\Local\Temp\buildp.exe"C:\Users\Admin\AppData\Local\Temp\buildp.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1376 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\ad5435c4-1fdb-4d53-9a99-0c3fc3f9ad51" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:2016
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C:\Users\Admin\AppData\Local\Temp\buildp.exe"C:\Users\Admin\AppData\Local\Temp\buildp.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1792 -
C:\Users\Admin\AppData\Local\Temp\buildp.exe"C:\Users\Admin\AppData\Local\Temp\buildp.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Loads dropped DLL
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1612 -
C:\Users\Admin\AppData\Local\fb32642e-7147-4c2a-9881-61033de1dddc\build2.exe"C:\Users\Admin\AppData\Local\fb32642e-7147-4c2a-9881-61033de1dddc\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1064 -
C:\Users\Admin\AppData\Local\fb32642e-7147-4c2a-9881-61033de1dddc\build2.exe"C:\Users\Admin\AppData\Local\fb32642e-7147-4c2a-9881-61033de1dddc\build2.exe"6⤵
- Executes dropped EXE
PID:880
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
841KB
MD5efed57771cb41fdde63781d1e195912c
SHA1a71b0545951c99eb6ad4a50c22d02c958003d920
SHA25672cd1426f13a698c7d63a288f4920147812303e8f10a4e66e414cc7c2206381d
SHA5126fd84f80ba5f3c53f48a6a0135cedc7b489cca419742e043116468bcda0898398dd7ddff4ac7d0d8b283312d4c411790b8ff74276f14016021597498b306a080
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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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Filesize
368KB
MD5ad1b502b6714c0a374b055332018974b
SHA1672f4e44475177ddcb1bfa73db3c5dee0f031bc2
SHA256f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95
SHA5120197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e
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Filesize
368KB
MD5ad1b502b6714c0a374b055332018974b
SHA1672f4e44475177ddcb1bfa73db3c5dee0f031bc2
SHA256f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95
SHA5120197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e