Analysis
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max time kernel
178s -
max time network
191s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
10-05-2022 05:39
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
52
517
https://t.me/hollandracing
https://busshi.moe/@ronxik321
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profile_id
517
Signatures
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Detected Djvu ransomware 8 IoCs
resource yara_rule behavioral2/memory/2612-131-0x0000000002390000-0x00000000024AB000-memory.dmp family_djvu behavioral2/memory/4004-133-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4004-134-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4004-135-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4004-136-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4236-143-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4236-144-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4236-149-0x0000000000400000-0x0000000000537000-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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suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer
suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer
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suricata: ET MALWARE Win32/Vodkagats Loader Requesting Payload
suricata: ET MALWARE Win32/Vodkagats Loader Requesting Payload
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Vidar Stealer 5 IoCs
resource yara_rule behavioral2/memory/4588-154-0x0000000000400000-0x000000000044C000-memory.dmp family_vidar behavioral2/memory/4588-156-0x0000000000400000-0x000000000044C000-memory.dmp family_vidar behavioral2/memory/5012-158-0x00000000005F0000-0x0000000000639000-memory.dmp family_vidar behavioral2/memory/4588-159-0x0000000000400000-0x000000000044C000-memory.dmp family_vidar behavioral2/memory/4588-160-0x0000000000400000-0x000000000044C000-memory.dmp family_vidar -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
pid Process 5012 build2.exe 4588 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-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation buildp.exe Key value queried \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation buildp.exe -
Loads dropped DLL 2 IoCs
pid Process 4588 build2.exe 4588 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4264 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-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\8530ed0f-ee90-4d2f-beb3-beb15e88ed35\\buildp.exe\" --AutoStart" buildp.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 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 26 api.2ip.ua 27 api.2ip.ua 42 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 2612 set thread context of 4004 2612 buildp.exe 80 PID 1516 set thread context of 4236 1516 buildp.exe 86 PID 5012 set thread context of 4588 5012 build2.exe 92 -
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 buildp.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 buildp.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 4004 buildp.exe 4004 buildp.exe 4236 buildp.exe 4236 buildp.exe 4588 build2.exe 4588 build2.exe 4588 build2.exe 4588 build2.exe 4588 build2.exe 4588 build2.exe 4588 build2.exe 4588 build2.exe -
Suspicious use of WriteProcessMemory 37 IoCs
description pid Process procid_target PID 2612 wrote to memory of 4004 2612 buildp.exe 80 PID 2612 wrote to memory of 4004 2612 buildp.exe 80 PID 2612 wrote to memory of 4004 2612 buildp.exe 80 PID 2612 wrote to memory of 4004 2612 buildp.exe 80 PID 2612 wrote to memory of 4004 2612 buildp.exe 80 PID 2612 wrote to memory of 4004 2612 buildp.exe 80 PID 2612 wrote to memory of 4004 2612 buildp.exe 80 PID 2612 wrote to memory of 4004 2612 buildp.exe 80 PID 2612 wrote to memory of 4004 2612 buildp.exe 80 PID 2612 wrote to memory of 4004 2612 buildp.exe 80 PID 4004 wrote to memory of 4264 4004 buildp.exe 81 PID 4004 wrote to memory of 4264 4004 buildp.exe 81 PID 4004 wrote to memory of 4264 4004 buildp.exe 81 PID 4004 wrote to memory of 1516 4004 buildp.exe 82 PID 4004 wrote to memory of 1516 4004 buildp.exe 82 PID 4004 wrote to memory of 1516 4004 buildp.exe 82 PID 1516 wrote to memory of 4236 1516 buildp.exe 86 PID 1516 wrote to memory of 4236 1516 buildp.exe 86 PID 1516 wrote to memory of 4236 1516 buildp.exe 86 PID 1516 wrote to memory of 4236 1516 buildp.exe 86 PID 1516 wrote to memory of 4236 1516 buildp.exe 86 PID 1516 wrote to memory of 4236 1516 buildp.exe 86 PID 1516 wrote to memory of 4236 1516 buildp.exe 86 PID 1516 wrote to memory of 4236 1516 buildp.exe 86 PID 1516 wrote to memory of 4236 1516 buildp.exe 86 PID 1516 wrote to memory of 4236 1516 buildp.exe 86 PID 4236 wrote to memory of 5012 4236 buildp.exe 91 PID 4236 wrote to memory of 5012 4236 buildp.exe 91 PID 4236 wrote to memory of 5012 4236 buildp.exe 91 PID 5012 wrote to memory of 4588 5012 build2.exe 92 PID 5012 wrote to memory of 4588 5012 build2.exe 92 PID 5012 wrote to memory of 4588 5012 build2.exe 92 PID 5012 wrote to memory of 4588 5012 build2.exe 92 PID 5012 wrote to memory of 4588 5012 build2.exe 92 PID 5012 wrote to memory of 4588 5012 build2.exe 92 PID 5012 wrote to memory of 4588 5012 build2.exe 92 PID 5012 wrote to memory of 4588 5012 build2.exe 92
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:2612 -
C:\Users\Admin\AppData\Local\Temp\buildp.exe"C:\Users\Admin\AppData\Local\Temp\buildp.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4004 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\8530ed0f-ee90-4d2f-beb3-beb15e88ed35" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:4264
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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:1516 -
C:\Users\Admin\AppData\Local\Temp\buildp.exe"C:\Users\Admin\AppData\Local\Temp\buildp.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4236 -
C:\Users\Admin\AppData\Local\0d7c03c0-0131-4871-b014-a16aca28c082\build2.exe"C:\Users\Admin\AppData\Local\0d7c03c0-0131-4871-b014-a16aca28c082\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5012 -
C:\Users\Admin\AppData\Local\0d7c03c0-0131-4871-b014-a16aca28c082\build2.exe"C:\Users\Admin\AppData\Local\0d7c03c0-0131-4871-b014-a16aca28c082\build2.exe"6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4588
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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\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize727B
MD5e25910c9dde509fb4760477c89c6a4e7
SHA14b9d17d6b3629d88bc92663e2a706fa67b32490b
SHA25605d4cc0a64e2fc232b3b4266c47d4925a30f8ba1d90f028646e3689a03a2f5ad
SHA512a1ad80c2fe9798f3e90327f1775624d0ed3d07c10021ac627521d3eed9bb87b09797bf0fd7be4e302ec26efb7e5fc590c4a8c50cd9ed411796ee101fe156ce09
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize471B
MD5d5710c53f1f6105506249979b718c4a4
SHA1c65a130aaec812b70a391ec99a749e4924977ff5
SHA2562df6a7244a4daa65c6af33cb0eed7119dc6f6c3f7074ca39b6136da058e5645f
SHA512c578d84534c0dfd73a844a9d88e0051f3c59bceda41b2806ce10d3cdda126e78cc26d4cb16de570294c17b187669cee9967916f17dd137ca40bc59bc36704603
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize402B
MD5f90ead84286017e32094c1594f59c5f8
SHA1016cd719ae3d951823984105a724259ca632f0de
SHA256bf1aaa00ceaf0bd837d3de094a42be9517ee866f05627f0036212cd490520182
SHA512ec8494dcbe89252c1c91ec6fb51b94876b68c7e6e26510ebb09a4114fa6025da7f107c2e0c94bfb42b0da24d44c5bf763f493e27593f8786a083fade2d0195a8
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize396B
MD5b3083c3ed35085985f748773f04c146e
SHA1fb59a84b830589cf2869deb5d9b45a2917e98419
SHA256b9006c42cbdad4af7f6ca46b2b901300635f72ad2c861d073885722a7e1f6e3c
SHA512d974d8fcb927297b31c3a230c97d6e760cb821bebbc2e5bf192939ec424acb694c0d3437de79aa87586e6e6dc0a0e3ebb5b302a0c6f3d38ac14ac7cf1af513f2
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Filesize
380KB
MD5ba5461bef761e4e723c2567cfe710fe3
SHA192f94d48482ca2006caf4c50ac387d1b532e837b
SHA256c9c82de52be77596153f54b192da4e91e671cc5ad01d6bfe0011fd8e9d5723fa
SHA51224f0e12607ff0672c236e92193b659c5121059b5ae56545790830081835120aca464e003066455227d31ee8445787fdfbf90a8be29af9e837edbe7e808e11149
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Filesize
380KB
MD5ba5461bef761e4e723c2567cfe710fe3
SHA192f94d48482ca2006caf4c50ac387d1b532e837b
SHA256c9c82de52be77596153f54b192da4e91e671cc5ad01d6bfe0011fd8e9d5723fa
SHA51224f0e12607ff0672c236e92193b659c5121059b5ae56545790830081835120aca464e003066455227d31ee8445787fdfbf90a8be29af9e837edbe7e808e11149
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Filesize
380KB
MD5ba5461bef761e4e723c2567cfe710fe3
SHA192f94d48482ca2006caf4c50ac387d1b532e837b
SHA256c9c82de52be77596153f54b192da4e91e671cc5ad01d6bfe0011fd8e9d5723fa
SHA51224f0e12607ff0672c236e92193b659c5121059b5ae56545790830081835120aca464e003066455227d31ee8445787fdfbf90a8be29af9e837edbe7e808e11149
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Filesize
841KB
MD5efed57771cb41fdde63781d1e195912c
SHA1a71b0545951c99eb6ad4a50c22d02c958003d920
SHA25672cd1426f13a698c7d63a288f4920147812303e8f10a4e66e414cc7c2206381d
SHA5126fd84f80ba5f3c53f48a6a0135cedc7b489cca419742e043116468bcda0898398dd7ddff4ac7d0d8b283312d4c411790b8ff74276f14016021597498b306a080