Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
21-11-2024 19:10
Static task
static1
Behavioral task
behavioral1
Sample
ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe
Resource
win10v2004-20241007-en
General
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Target
ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe
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Size
788KB
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MD5
d12fac240f848ffc20ab138277643ffb
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SHA1
0bbf2d7bae64ec348ec6c7060e185126abd59d63
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SHA256
ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc
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SHA512
81f261deffc263258828a995a4445a37c521b67eed67ebc19314e5062c56b038e3f0a03806323a3f7638ac6be0858a06b75c15767ff4224a478fd9ef6d89f538
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SSDEEP
24576:Sh2Q81BHBADHUVYNV8Wvq0XuH8TNe1fUb:ShUhiHUVU8WS0XDNe9
Malware Config
Extracted
djvu
http://zexeq.com/test1/get.php
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extension
.nbzi
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offline_id
csCsb6cUvy0iMa6NgGCGH0hSfXQlGjZVEmFVkgt1
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payload_url
http://brusuax.com/dl/build2.exe
http://zexeq.com/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-8dGJ2tqlOd 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: 0832ASdw
Signatures
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Detected Djvu ransomware 18 IoCs
Processes:
resource yara_rule behavioral2/memory/1192-2-0x0000000004A00000-0x0000000004B1B000-memory.dmp family_djvu behavioral2/memory/3008-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3008-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3008-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3008-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3008-21-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3196-26-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3196-24-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3196-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3196-33-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3196-49-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3196-55-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3196-66-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3196-67-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3196-69-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3196-70-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3196-71-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3196-72-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Djvu family
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exead42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\6b493867-506b-44db-b309-2697d039a90f\\ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe\" --AutoStart" ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 3 api.2ip.ua 4 api.2ip.ua 16 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exead42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exedescription pid Process procid_target PID 1192 set thread context of 3008 1192 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 85 PID 4620 set thread context of 3196 4620 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 89 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exead42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exeicacls.exead42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exead42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exead42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exepid Process 3008 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 3008 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 3196 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 3196 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exead42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exead42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exedescription pid Process procid_target PID 1192 wrote to memory of 3008 1192 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 85 PID 1192 wrote to memory of 3008 1192 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 85 PID 1192 wrote to memory of 3008 1192 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 85 PID 1192 wrote to memory of 3008 1192 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 85 PID 1192 wrote to memory of 3008 1192 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 85 PID 1192 wrote to memory of 3008 1192 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 85 PID 1192 wrote to memory of 3008 1192 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 85 PID 1192 wrote to memory of 3008 1192 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 85 PID 1192 wrote to memory of 3008 1192 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 85 PID 1192 wrote to memory of 3008 1192 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 85 PID 3008 wrote to memory of 2040 3008 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 86 PID 3008 wrote to memory of 2040 3008 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 86 PID 3008 wrote to memory of 2040 3008 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 86 PID 3008 wrote to memory of 4620 3008 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 87 PID 3008 wrote to memory of 4620 3008 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 87 PID 3008 wrote to memory of 4620 3008 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 87 PID 4620 wrote to memory of 3196 4620 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 89 PID 4620 wrote to memory of 3196 4620 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 89 PID 4620 wrote to memory of 3196 4620 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 89 PID 4620 wrote to memory of 3196 4620 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 89 PID 4620 wrote to memory of 3196 4620 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 89 PID 4620 wrote to memory of 3196 4620 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 89 PID 4620 wrote to memory of 3196 4620 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 89 PID 4620 wrote to memory of 3196 4620 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 89 PID 4620 wrote to memory of 3196 4620 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 89 PID 4620 wrote to memory of 3196 4620 ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe"C:\Users\Admin\AppData\Local\Temp\ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1192 -
C:\Users\Admin\AppData\Local\Temp\ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe"C:\Users\Admin\AppData\Local\Temp\ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3008 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\6b493867-506b-44db-b309-2697d039a90f" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2040
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C:\Users\Admin\AppData\Local\Temp\ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe"C:\Users\Admin\AppData\Local\Temp\ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4620 -
C:\Users\Admin\AppData\Local\Temp\ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe"C:\Users\Admin\AppData\Local\Temp\ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:3196
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD567e486b2f148a3fca863728242b6273e
SHA1452a84c183d7ea5b7c015b597e94af8eef66d44a
SHA256facaf1c3a4bf232abce19a2d534e495b0d3adc7dbe3797d336249aa6f70adcfb
SHA512d3a37da3bb10a9736dc03e8b2b49baceef5d73c026e2077b8ebc1b786f2c9b2f807e0aa13a5866cf3b3cafd2bc506242ef139c423eaffb050bbb87773e53881e
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Filesize
436B
MD5971c514f84bba0785f80aa1c23edfd79
SHA1732acea710a87530c6b08ecdf32a110d254a54c8
SHA256f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895
SHA51243dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize174B
MD5aad2d8ec18bd4c6fa95d025b7cb72f62
SHA1834d76cf0d990028e72fb0b8bee7724ea9f80b90
SHA2565fe77ad98d9da7950dd5ccfdf97e4a0667f1fe5ad118447c3ffbd7a00fa1a67e
SHA512420f567545e15410d6d4595f2a1670d0497bd997f5d0e5e5242ad450c10cccd312b11ca1cb325a68bbf165e5dffa222cdd0e142da784b29dce9f019c74dda843
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD5b6910f1d8331c13b3a504594b61e1241
SHA1eaf681883c8d1fa7f2bf59ea4fcdee42b848e2d2
SHA256304457dcd3bd030d7f7c834ebd0ef5e1d1f95c7713d2f8aabb97eeddf4a289cb
SHA51262c3c3bd4d2ad1c98e9a11c24c5d37bb670e9abc4e3bb41ac0edde2ce62fb0f5c40b31b2fe5b494638a9488ac94b16d738d6fc90977e65224faebb5dcb933497
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Filesize
437B
MD56910426a598bc0b07dd6ca7c2faf5c22
SHA14304d65a08652b167453997e1464cc6ef034be23
SHA256ebfef207462c29030b8a06068c8cbf1cfeae1304813b9cdbfa2d705b314bf692
SHA5125e96757fa5daa336968aa07d5fe5525040a081a547dd6bad55bed4539ad76b3f96aabd38f461efdafa4a427963b2a3187cc40dfa60c74e6c6ddf738176381952
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C:\Users\Admin\AppData\Local\6b493867-506b-44db-b309-2697d039a90f\ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc.exe
Filesize788KB
MD5d12fac240f848ffc20ab138277643ffb
SHA10bbf2d7bae64ec348ec6c7060e185126abd59d63
SHA256ad42ae25b5ae192a64ff550c53b5d2db38b3cbf0b77d34af7dbe6fd0f554aadc
SHA51281f261deffc263258828a995a4445a37c521b67eed67ebc19314e5062c56b038e3f0a03806323a3f7638ac6be0858a06b75c15767ff4224a478fd9ef6d89f538
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Filesize
449B
MD5caa078f0348cda98328127c142e3bfed
SHA1e38274d642c806a3affcca8f7e37b61f591c47e6
SHA25691faeb982f34313750a83d74c5464abe4e01357d1a7ea4253973509bc0e9d219
SHA5122e6a5c482b5226079c6b4bd9a706537c372a3b43962f64be6bdd281e3217f963316ef0eba38164890bdf14af6558eb26605320487f0a0c841be9bb813c2ee5d6