Analysis
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max time kernel
146s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system -
submitted
04/05/2023, 07:58
Static task
static1
Behavioral task
behavioral1
Sample
3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe
Resource
win10v2004-20230221-en
General
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Target
3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe
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Size
818KB
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MD5
9055163ad21ddf48efb034113a657ec0
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SHA1
9b41f2a49e2aba0600a1084681e98dd343e3f1a0
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SHA256
3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b
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SHA512
20810e7239a94791c5cf60e72cab1d278e7a411552ee83a97d14a428d7fa6fd1cb49b996a8ae4d8b6ce4a8551466f720941ff6c2f963547e78da686842f16fba
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SSDEEP
12288:ML5iz8y15Tw2YG21XYttXY31kWDJZHKnVjVdGNOZfb40Lx0/EW8gZgOZ:Mm9MLG2itGFHPQrCkpbbgZg
Malware Config
Extracted
djvu
http://zexeq.com/test1/get.php
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extension
.sato
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offline_id
GdcTFG029NGZ36LGVnRuxctpZuCpnW1SW5kiOCt1
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payload_url
http://colisumy.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-iN0WoEcmv0 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: 0698Ikksje
Extracted
vidar
3.7
31c7719b5ee962fbde376b75e771360d
https://steamcommunity.com/profiles/76561199501059503
https://t.me/mastersbots
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profile_id_v2
31c7719b5ee962fbde376b75e771360d
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user_agent
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/112.0
Signatures
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Detected Djvu ransomware 17 IoCs
resource yara_rule behavioral1/memory/4880-134-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4880-135-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2548-136-0x0000000002730000-0x000000000284B000-memory.dmp family_djvu behavioral1/memory/4880-137-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4880-138-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4880-147-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4684-151-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4684-152-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4684-157-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4684-158-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4684-159-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4684-260-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4684-269-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4684-271-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4684-272-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4684-273-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4684-274-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Downloads MZ/PE file
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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-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe -
Executes dropped EXE 2 IoCs
pid Process 3672 build2.exe 4608 build2.exe -
Loads dropped DLL 2 IoCs
pid Process 4608 build2.exe 4608 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1892 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-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\c19910d1-8bd0-4f47-9d82-67240f054a30\\3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe\" --AutoStart" 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.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 11 api.2ip.ua 12 api.2ip.ua 19 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 2548 set thread context of 4880 2548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 83 PID 548 set thread context of 4684 548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 87 PID 3672 set thread context of 4608 3672 build2.exe 89 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4880 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 4880 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 4684 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 4684 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 4608 build2.exe 4608 build2.exe -
Suspicious use of WriteProcessMemory 38 IoCs
description pid Process procid_target PID 2548 wrote to memory of 4880 2548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 83 PID 2548 wrote to memory of 4880 2548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 83 PID 2548 wrote to memory of 4880 2548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 83 PID 2548 wrote to memory of 4880 2548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 83 PID 2548 wrote to memory of 4880 2548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 83 PID 2548 wrote to memory of 4880 2548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 83 PID 2548 wrote to memory of 4880 2548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 83 PID 2548 wrote to memory of 4880 2548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 83 PID 2548 wrote to memory of 4880 2548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 83 PID 2548 wrote to memory of 4880 2548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 83 PID 4880 wrote to memory of 1892 4880 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 84 PID 4880 wrote to memory of 1892 4880 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 84 PID 4880 wrote to memory of 1892 4880 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 84 PID 4880 wrote to memory of 548 4880 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 85 PID 4880 wrote to memory of 548 4880 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 85 PID 4880 wrote to memory of 548 4880 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 85 PID 548 wrote to memory of 4684 548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 87 PID 548 wrote to memory of 4684 548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 87 PID 548 wrote to memory of 4684 548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 87 PID 548 wrote to memory of 4684 548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 87 PID 548 wrote to memory of 4684 548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 87 PID 548 wrote to memory of 4684 548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 87 PID 548 wrote to memory of 4684 548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 87 PID 548 wrote to memory of 4684 548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 87 PID 548 wrote to memory of 4684 548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 87 PID 548 wrote to memory of 4684 548 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 87 PID 4684 wrote to memory of 3672 4684 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 88 PID 4684 wrote to memory of 3672 4684 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 88 PID 4684 wrote to memory of 3672 4684 3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe 88 PID 3672 wrote to memory of 4608 3672 build2.exe 89 PID 3672 wrote to memory of 4608 3672 build2.exe 89 PID 3672 wrote to memory of 4608 3672 build2.exe 89 PID 3672 wrote to memory of 4608 3672 build2.exe 89 PID 3672 wrote to memory of 4608 3672 build2.exe 89 PID 3672 wrote to memory of 4608 3672 build2.exe 89 PID 3672 wrote to memory of 4608 3672 build2.exe 89 PID 3672 wrote to memory of 4608 3672 build2.exe 89 PID 3672 wrote to memory of 4608 3672 build2.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe"C:\Users\Admin\AppData\Local\Temp\3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2548 -
C:\Users\Admin\AppData\Local\Temp\3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe"C:\Users\Admin\AppData\Local\Temp\3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4880 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\c19910d1-8bd0-4f47-9d82-67240f054a30" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:1892
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C:\Users\Admin\AppData\Local\Temp\3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe"C:\Users\Admin\AppData\Local\Temp\3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:548 -
C:\Users\Admin\AppData\Local\Temp\3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe"C:\Users\Admin\AppData\Local\Temp\3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4684 -
C:\Users\Admin\AppData\Local\cdc93e6d-4715-403c-8ef1-f9b904a26915\build2.exe"C:\Users\Admin\AppData\Local\cdc93e6d-4715-403c-8ef1-f9b904a26915\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3672 -
C:\Users\Admin\AppData\Local\cdc93e6d-4715-403c-8ef1-f9b904a26915\build2.exe"C:\Users\Admin\AppData\Local\cdc93e6d-4715-403c-8ef1-f9b904a26915\build2.exe"6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4608
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize2KB
MD54245787a3883497201cedccb2894c6e5
SHA1b0e151beb359f2e5545d07d8b6904d42aa2d3210
SHA2565c9455eab43d4bafa996234ab1ea8ee5a392104843c80f0ffee1771a8c5133b2
SHA512a6f053dc4ceb96b6901ea5abf5a14f26d70497195a33fbc7a29ddfb94af7ab330113e6b0b92c9b87bd482502cd06bff37cf76f2409f1c8f5f625d4f493943fab
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize1KB
MD55145226ee965ec6c7814292caa016376
SHA1599b6fa914c11bf8527397d65084c2de42aff73a
SHA2565ee4ed22271e4b9da8d765374cd65b5015abc548748c746dbdddf6fdf680db5e
SHA512f23363359d73e416b0c335e7f91128874242c6c98926d1e4d084173e2b94ba58844dec98d781a2d4f3c82420b3522f77bdceb613109a9c798330769080cdfc2d
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize488B
MD5df91cefd83d0df045d812ca002e3d3ea
SHA178053cd4b96b0691dc9b5c1b85de7d029de85101
SHA2567c77d124dfcc977011d8a96a4f99e8429e9c3096673deb762a7886ae1ec034b9
SHA5124dfd9fd59ed4feb9cb6e6f94975e7904ae745234abb1564392efa6b906ad5453b24ce1eed8946139ac511add25cf5ada443875ca12211f48ef2123131b8c62d7
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize482B
MD534a8493a8d7bad5f9fd493752e45e42c
SHA17bdc77c6e636477e385f6a5f6e4a00b32e2a9a20
SHA2564ddbc3b978aa6d8e6ad05b2d242bf0a16c5715a72389f5170998dbfff7b412c4
SHA512379730534d1a0a29f29b72cb691a158a57c0b60bbf698b9ed7d620414474362ef30ae98963c9b1015f07090beb857d48fd5309250bbd5b6165d5c4fdc2f58d2a
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C:\Users\Admin\AppData\Local\c19910d1-8bd0-4f47-9d82-67240f054a30\3c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b.exe
Filesize818KB
MD59055163ad21ddf48efb034113a657ec0
SHA19b41f2a49e2aba0600a1084681e98dd343e3f1a0
SHA2563c98ddc2c844c0f5fdd24797037a3b20cb7d61883145a10b6659dcc0dedf615b
SHA51220810e7239a94791c5cf60e72cab1d278e7a411552ee83a97d14a428d7fa6fd1cb49b996a8ae4d8b6ce4a8551466f720941ff6c2f963547e78da686842f16fba
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Filesize
406KB
MD5a5293cb8841eb96b8a6618f1e11cb730
SHA1db640ebdfc3b98fe7a8223a44f4e997fa28cacc0
SHA256810be76ae3ecc5ab7f019f91979ac9ebf76ed220a7b42c2254a21ec660f8289f
SHA512b5cc44cc78250327cb23a45a3144c1c1ddbf89593f4946ae2f38c82c00a4d7057af0c5a8717572d4663967b072b302753f1751549eb758e9a520cf978ec187a6
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Filesize
406KB
MD5a5293cb8841eb96b8a6618f1e11cb730
SHA1db640ebdfc3b98fe7a8223a44f4e997fa28cacc0
SHA256810be76ae3ecc5ab7f019f91979ac9ebf76ed220a7b42c2254a21ec660f8289f
SHA512b5cc44cc78250327cb23a45a3144c1c1ddbf89593f4946ae2f38c82c00a4d7057af0c5a8717572d4663967b072b302753f1751549eb758e9a520cf978ec187a6
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Filesize
406KB
MD5a5293cb8841eb96b8a6618f1e11cb730
SHA1db640ebdfc3b98fe7a8223a44f4e997fa28cacc0
SHA256810be76ae3ecc5ab7f019f91979ac9ebf76ed220a7b42c2254a21ec660f8289f
SHA512b5cc44cc78250327cb23a45a3144c1c1ddbf89593f4946ae2f38c82c00a4d7057af0c5a8717572d4663967b072b302753f1751549eb758e9a520cf978ec187a6
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Filesize
406KB
MD5a5293cb8841eb96b8a6618f1e11cb730
SHA1db640ebdfc3b98fe7a8223a44f4e997fa28cacc0
SHA256810be76ae3ecc5ab7f019f91979ac9ebf76ed220a7b42c2254a21ec660f8289f
SHA512b5cc44cc78250327cb23a45a3144c1c1ddbf89593f4946ae2f38c82c00a4d7057af0c5a8717572d4663967b072b302753f1751549eb758e9a520cf978ec187a6