Analysis
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max time kernel
103s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
28/09/2022, 02:11
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
General
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Target
file.exe
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Size
847KB
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MD5
2bbdc3ba9c20e48de4ed5a31b0163e23
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SHA1
94bfdc6636b5c36bd7b78218f87a15284f30cc47
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SHA256
f6181aa322fca653e6085134a4ad4b979db5a291635ebdc30522247fbab5b092
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SHA512
a230d91d2649dc699bc3fe640c3b9a52658e58b15d96fea7878e4db105819c7bd3d73b4f64219874c218070713db9105c7f7e23f8a9c3e97aeea9b951fb62442
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SSDEEP
12288:VHxhdE4P5tO1Ga4iW7d6T4I1///Sz0iU7Ajfs/vjx4RPrWxfZ0KPsQtZiB:VHfdexW4/6znpMjoWBGUhtZi
Malware Config
Extracted
djvu
http://winnlinne.com/test3/get.php
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extension
.ofoq
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offline_id
xkNzhkB1wvgoDI7Uo0HPNLY3qCuwoFpP7nlhlut1
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payload_url
http://rgyui.top/dl/build2.exe
http://winnlinne.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-EWKSsSJiVn 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: 0568Jhyjd
Extracted
vidar
54.7
517
https://t.me/trampapanam
https://nerdculture.de/@yoxhyp
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profile_id
517
Signatures
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Detected Djvu ransomware 10 IoCs
resource yara_rule behavioral2/memory/5012-133-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/5012-134-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/5012-136-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1644-137-0x00000000023D0000-0x00000000024EB000-memory.dmp family_djvu behavioral2/memory/5012-138-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/5012-142-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1716-145-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1716-147-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1716-152-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1716-188-0x0000000000400000-0x0000000000537000-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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Executes dropped EXE 4 IoCs
pid Process 3528 build2.exe 3096 build3.exe 4032 build2.exe 4692 mstsca.exe -
Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation build2.exe -
Loads dropped DLL 2 IoCs
pid Process 4032 build2.exe 4032 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4160 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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\795565ca-d661-4225-a794-a7ba20f4bad8\\file.exe\" --AutoStart" file.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 12 api.2ip.ua 13 api.2ip.ua 22 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 1644 set thread context of 5012 1644 file.exe 83 PID 1984 set thread context of 1716 1984 file.exe 90 PID 3528 set thread context of 4032 3528 build2.exe 95 -
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 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3556 schtasks.exe 2400 schtasks.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 1596 timeout.exe -
Kills process with taskkill 1 IoCs
pid Process 2696 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 5012 file.exe 5012 file.exe 1716 file.exe 1716 file.exe 4032 build2.exe 4032 build2.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2696 taskkill.exe -
Suspicious use of WriteProcessMemory 56 IoCs
description pid Process procid_target PID 1644 wrote to memory of 5012 1644 file.exe 83 PID 1644 wrote to memory of 5012 1644 file.exe 83 PID 1644 wrote to memory of 5012 1644 file.exe 83 PID 1644 wrote to memory of 5012 1644 file.exe 83 PID 1644 wrote to memory of 5012 1644 file.exe 83 PID 1644 wrote to memory of 5012 1644 file.exe 83 PID 1644 wrote to memory of 5012 1644 file.exe 83 PID 1644 wrote to memory of 5012 1644 file.exe 83 PID 1644 wrote to memory of 5012 1644 file.exe 83 PID 1644 wrote to memory of 5012 1644 file.exe 83 PID 5012 wrote to memory of 4160 5012 file.exe 85 PID 5012 wrote to memory of 4160 5012 file.exe 85 PID 5012 wrote to memory of 4160 5012 file.exe 85 PID 5012 wrote to memory of 1984 5012 file.exe 86 PID 5012 wrote to memory of 1984 5012 file.exe 86 PID 5012 wrote to memory of 1984 5012 file.exe 86 PID 1984 wrote to memory of 1716 1984 file.exe 90 PID 1984 wrote to memory of 1716 1984 file.exe 90 PID 1984 wrote to memory of 1716 1984 file.exe 90 PID 1984 wrote to memory of 1716 1984 file.exe 90 PID 1984 wrote to memory of 1716 1984 file.exe 90 PID 1984 wrote to memory of 1716 1984 file.exe 90 PID 1984 wrote to memory of 1716 1984 file.exe 90 PID 1984 wrote to memory of 1716 1984 file.exe 90 PID 1984 wrote to memory of 1716 1984 file.exe 90 PID 1984 wrote to memory of 1716 1984 file.exe 90 PID 1716 wrote to memory of 3528 1716 file.exe 91 PID 1716 wrote to memory of 3528 1716 file.exe 91 PID 1716 wrote to memory of 3528 1716 file.exe 91 PID 1716 wrote to memory of 3096 1716 file.exe 92 PID 1716 wrote to memory of 3096 1716 file.exe 92 PID 1716 wrote to memory of 3096 1716 file.exe 92 PID 3096 wrote to memory of 3556 3096 build3.exe 93 PID 3096 wrote to memory of 3556 3096 build3.exe 93 PID 3096 wrote to memory of 3556 3096 build3.exe 93 PID 3528 wrote to memory of 4032 3528 build2.exe 95 PID 3528 wrote to memory of 4032 3528 build2.exe 95 PID 3528 wrote to memory of 4032 3528 build2.exe 95 PID 3528 wrote to memory of 4032 3528 build2.exe 95 PID 3528 wrote to memory of 4032 3528 build2.exe 95 PID 3528 wrote to memory of 4032 3528 build2.exe 95 PID 3528 wrote to memory of 4032 3528 build2.exe 95 PID 3528 wrote to memory of 4032 3528 build2.exe 95 PID 3528 wrote to memory of 4032 3528 build2.exe 95 PID 4032 wrote to memory of 1960 4032 build2.exe 96 PID 4032 wrote to memory of 1960 4032 build2.exe 96 PID 4032 wrote to memory of 1960 4032 build2.exe 96 PID 1960 wrote to memory of 2696 1960 cmd.exe 98 PID 1960 wrote to memory of 2696 1960 cmd.exe 98 PID 1960 wrote to memory of 2696 1960 cmd.exe 98 PID 1960 wrote to memory of 1596 1960 cmd.exe 99 PID 1960 wrote to memory of 1596 1960 cmd.exe 99 PID 1960 wrote to memory of 1596 1960 cmd.exe 99 PID 4692 wrote to memory of 2400 4692 mstsca.exe 102 PID 4692 wrote to memory of 2400 4692 mstsca.exe 102 PID 4692 wrote to memory of 2400 4692 mstsca.exe 102
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1644 -
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5012 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\795565ca-d661-4225-a794-a7ba20f4bad8" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:4160
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1984 -
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Users\Admin\AppData\Local\837048ca-5a7d-49e7-8c8c-5f88fb6581c4\build2.exe"C:\Users\Admin\AppData\Local\837048ca-5a7d-49e7-8c8c-5f88fb6581c4\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3528 -
C:\Users\Admin\AppData\Local\837048ca-5a7d-49e7-8c8c-5f88fb6581c4\build2.exe"C:\Users\Admin\AppData\Local\837048ca-5a7d-49e7-8c8c-5f88fb6581c4\build2.exe"6⤵
- Executes dropped EXE
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4032 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" \/c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\837048ca-5a7d-49e7-8c8c-5f88fb6581c4\build2.exe" & del C:\PrograData\*.dll & exit7⤵
- Suspicious use of WriteProcessMemory
PID:1960 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im build2.exe /f8⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2696
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C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
PID:1596
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C:\Users\Admin\AppData\Local\837048ca-5a7d-49e7-8c8c-5f88fb6581c4\build3.exe"C:\Users\Admin\AppData\Local\837048ca-5a7d-49e7-8c8c-5f88fb6581c4\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3096 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"6⤵
- Creates scheduled task(s)
PID:3556
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exeC:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4692 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"2⤵
- Creates scheduled task(s)
PID:2400
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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
MD53229b6929fc9caec79e3e5ad740250c6
SHA1d677cb89c767b4c4a444fedfa53dd6c8aa1d7d6e
SHA256ece826b5b4484d173ea804773ca9a13c7248d2f6f3c8a7efeea2a9e3691d7628
SHA51279b5ab3c41f03f913c0c947c6b6c66f396af97f7f69b3df72622beb9fddf8c6cc1a4f830d3edbd91ec570ce59531f09db54e51a2694a8b330ded69fd932036d1
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize1KB
MD5edcd4c783b2b2c906602519bd8f697f4
SHA1fc56fded4065d6960c6507cac4264dfd2b038004
SHA256367e0ac4e24f1d1530de05a6abf81d6b572c0546b5aa134c246fa1514582fd90
SHA512cb23a82c06211121e39ed0dbec5928b1a85aca7c25f2c060d609350e3a94bf82e9159a2a4d5e67295fc29bac22c95d525ea2461a0000d24c6c4cb630520f68d0
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize488B
MD5b110f7f651df6a371420f94e60be25ea
SHA1a1ad7506f841096f025d5fcb6ce237c51ee1991e
SHA256d8293c9a9cd7003bd75dfad26af6697f5ca0e826ff6d106858ae903721487855
SHA5122c2701baef23469163daf736f6296f1dfa1a05df971ab044bc843576e5b7ef44fe5e14f75d7905a8eb5c1d52c27f07d69b3ccfffb5216d634d76554c91d2edaa
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize482B
MD5c1aa10fe12cda57533b60efe8751986a
SHA1352efff806b4560e8fe7ce1b43c12a0e57065dd2
SHA2567f825f02fc3335fd74544d915e2d30011226891f9a22a6ebe67bdd80599ed46a
SHA512d9666c44559c8cc882210e664676c5928178d33ed4f92e5749cc66a5065d310ac41820c8b461539e5e842a5354b42fb7f8fa3a0dcdf8201bca52e603be06c103
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Filesize
847KB
MD52bbdc3ba9c20e48de4ed5a31b0163e23
SHA194bfdc6636b5c36bd7b78218f87a15284f30cc47
SHA256f6181aa322fca653e6085134a4ad4b979db5a291635ebdc30522247fbab5b092
SHA512a230d91d2649dc699bc3fe640c3b9a52658e58b15d96fea7878e4db105819c7bd3d73b4f64219874c218070713db9105c7f7e23f8a9c3e97aeea9b951fb62442
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Filesize
418KB
MD5bc47d3a0d4a74adc40b3a7035344becb
SHA1dd80bbe70106b62ea58924173a364cc936a0b1f4
SHA25606d1366df3628a010416384f7c77c493ac35f13ee05e010751708d681ebe5169
SHA5124a4ef35c5fcbfc5a6b86dd6235f8b1b4f048ee5b5bd74fd9173a65cd450ec0f58fcf74f5fd2e58dd5dee486c0e41c2523cd6d7528d56fc2627fbdf8b598a29e4
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Filesize
418KB
MD5bc47d3a0d4a74adc40b3a7035344becb
SHA1dd80bbe70106b62ea58924173a364cc936a0b1f4
SHA25606d1366df3628a010416384f7c77c493ac35f13ee05e010751708d681ebe5169
SHA5124a4ef35c5fcbfc5a6b86dd6235f8b1b4f048ee5b5bd74fd9173a65cd450ec0f58fcf74f5fd2e58dd5dee486c0e41c2523cd6d7528d56fc2627fbdf8b598a29e4
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Filesize
418KB
MD5bc47d3a0d4a74adc40b3a7035344becb
SHA1dd80bbe70106b62ea58924173a364cc936a0b1f4
SHA25606d1366df3628a010416384f7c77c493ac35f13ee05e010751708d681ebe5169
SHA5124a4ef35c5fcbfc5a6b86dd6235f8b1b4f048ee5b5bd74fd9173a65cd450ec0f58fcf74f5fd2e58dd5dee486c0e41c2523cd6d7528d56fc2627fbdf8b598a29e4
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a