Analysis
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max time kernel
144s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system -
submitted
12/06/2023, 14:10
Static task
static1
Behavioral task
behavioral1
Sample
05177199.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
05177199.exe
Resource
win10v2004-20230221-en
General
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Target
05177199.exe
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Size
684KB
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MD5
07e322e00371943a3577322504276f9c
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SHA1
492f80833aea121973be091e5634fd89d3ceb0d3
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SHA256
c4d33fc79173be38c3a76223263f6b37486903188e3c081586ecd62fcc651497
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SHA512
56155008c846382a8ddb8b814ce6208b10d69a4b340bcad7fd7d952b48ee913cafafe188ab76b6c4cbd3a7f2d065a99f4e464fd118832eb23917fe8bdded03bd
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SSDEEP
12288:M2T7qAinDx1SYFfo7y7Uw/fsbDAOG4Vf7fjwO98DiWRWF6PHMx:MW7q722oO5fsfzrVTfsP9WFaH8
Malware Config
Extracted
djvu
http://zexeq.com/test1/get.php
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extension
.ahtw
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offline_id
vPWUuYIO6Lzy2cGt8zL7FERKTf4QMBPjn7F005t1
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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-sLaQRb9N6e 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: 0726Isk
Extracted
vidar
4.2
a81bcf59d85e6e13257840e65b9d1da8
https://steamcommunity.com/profiles/76561199511129510
https://t.me/rechnungsbetrag
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profile_id_v2
a81bcf59d85e6e13257840e65b9d1da8
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user_agent
Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.38 Safari/537.36 Brave/75
Signatures
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Detected Djvu ransomware 16 IoCs
resource yara_rule behavioral2/memory/3704-134-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1700-136-0x0000000002540000-0x000000000265B000-memory.dmp family_djvu behavioral2/memory/3704-135-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3704-137-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3704-138-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3704-155-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3628-159-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3628-160-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3628-161-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3628-167-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3628-168-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3628-172-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3628-175-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3628-174-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3628-205-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3628-287-0x0000000000400000-0x0000000000537000-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 05177199.exe Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation 05177199.exe -
Executes dropped EXE 4 IoCs
pid Process 5072 build2.exe 4684 build2.exe 3060 build3.exe 2404 mstsca.exe -
Loads dropped DLL 2 IoCs
pid Process 4684 build2.exe 4684 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 3108 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\\c2a1c870-544a-40e7-834d-e90989e32bbf\\05177199.exe\" --AutoStart" 05177199.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 3 api.2ip.ua 4 api.2ip.ua 28 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 1700 set thread context of 3704 1700 05177199.exe 83 PID 4544 set thread context of 3628 4544 05177199.exe 88 PID 5072 set thread context of 4684 5072 build2.exe 90 -
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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString build2.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 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 2196 schtasks.exe 1584 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3704 05177199.exe 3704 05177199.exe 3628 05177199.exe 3628 05177199.exe 4684 build2.exe 4684 build2.exe -
Suspicious use of WriteProcessMemory 47 IoCs
description pid Process procid_target PID 1700 wrote to memory of 3704 1700 05177199.exe 83 PID 1700 wrote to memory of 3704 1700 05177199.exe 83 PID 1700 wrote to memory of 3704 1700 05177199.exe 83 PID 1700 wrote to memory of 3704 1700 05177199.exe 83 PID 1700 wrote to memory of 3704 1700 05177199.exe 83 PID 1700 wrote to memory of 3704 1700 05177199.exe 83 PID 1700 wrote to memory of 3704 1700 05177199.exe 83 PID 1700 wrote to memory of 3704 1700 05177199.exe 83 PID 1700 wrote to memory of 3704 1700 05177199.exe 83 PID 1700 wrote to memory of 3704 1700 05177199.exe 83 PID 3704 wrote to memory of 3108 3704 05177199.exe 85 PID 3704 wrote to memory of 3108 3704 05177199.exe 85 PID 3704 wrote to memory of 3108 3704 05177199.exe 85 PID 3704 wrote to memory of 4544 3704 05177199.exe 86 PID 3704 wrote to memory of 4544 3704 05177199.exe 86 PID 3704 wrote to memory of 4544 3704 05177199.exe 86 PID 4544 wrote to memory of 3628 4544 05177199.exe 88 PID 4544 wrote to memory of 3628 4544 05177199.exe 88 PID 4544 wrote to memory of 3628 4544 05177199.exe 88 PID 4544 wrote to memory of 3628 4544 05177199.exe 88 PID 4544 wrote to memory of 3628 4544 05177199.exe 88 PID 4544 wrote to memory of 3628 4544 05177199.exe 88 PID 4544 wrote to memory of 3628 4544 05177199.exe 88 PID 4544 wrote to memory of 3628 4544 05177199.exe 88 PID 4544 wrote to memory of 3628 4544 05177199.exe 88 PID 4544 wrote to memory of 3628 4544 05177199.exe 88 PID 3628 wrote to memory of 5072 3628 05177199.exe 89 PID 3628 wrote to memory of 5072 3628 05177199.exe 89 PID 3628 wrote to memory of 5072 3628 05177199.exe 89 PID 5072 wrote to memory of 4684 5072 build2.exe 90 PID 5072 wrote to memory of 4684 5072 build2.exe 90 PID 5072 wrote to memory of 4684 5072 build2.exe 90 PID 5072 wrote to memory of 4684 5072 build2.exe 90 PID 5072 wrote to memory of 4684 5072 build2.exe 90 PID 5072 wrote to memory of 4684 5072 build2.exe 90 PID 5072 wrote to memory of 4684 5072 build2.exe 90 PID 5072 wrote to memory of 4684 5072 build2.exe 90 PID 5072 wrote to memory of 4684 5072 build2.exe 90 PID 3628 wrote to memory of 3060 3628 05177199.exe 91 PID 3628 wrote to memory of 3060 3628 05177199.exe 91 PID 3628 wrote to memory of 3060 3628 05177199.exe 91 PID 3060 wrote to memory of 2196 3060 build3.exe 92 PID 3060 wrote to memory of 2196 3060 build3.exe 92 PID 3060 wrote to memory of 2196 3060 build3.exe 92 PID 2404 wrote to memory of 1584 2404 mstsca.exe 100 PID 2404 wrote to memory of 1584 2404 mstsca.exe 100 PID 2404 wrote to memory of 1584 2404 mstsca.exe 100
Processes
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C:\Users\Admin\AppData\Local\Temp\05177199.exe"C:\Users\Admin\AppData\Local\Temp\05177199.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1700 -
C:\Users\Admin\AppData\Local\Temp\05177199.exe"C:\Users\Admin\AppData\Local\Temp\05177199.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3704 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\c2a1c870-544a-40e7-834d-e90989e32bbf" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:3108
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C:\Users\Admin\AppData\Local\Temp\05177199.exe"C:\Users\Admin\AppData\Local\Temp\05177199.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4544 -
C:\Users\Admin\AppData\Local\Temp\05177199.exe"C:\Users\Admin\AppData\Local\Temp\05177199.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3628 -
C:\Users\Admin\AppData\Local\bb893125-51ee-4cb1-b276-018e4e45e840\build2.exe"C:\Users\Admin\AppData\Local\bb893125-51ee-4cb1-b276-018e4e45e840\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5072 -
C:\Users\Admin\AppData\Local\bb893125-51ee-4cb1-b276-018e4e45e840\build2.exe"C:\Users\Admin\AppData\Local\bb893125-51ee-4cb1-b276-018e4e45e840\build2.exe"6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4684
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C:\Users\Admin\AppData\Local\bb893125-51ee-4cb1-b276-018e4e45e840\build3.exe"C:\Users\Admin\AppData\Local\bb893125-51ee-4cb1-b276-018e4e45e840\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3060 -
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:2196
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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:2404 -
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:1584
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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
MD535ea43685e4c722697c1556ff9ecd74f
SHA16dee725787797e2ada7d18b852d70c077748435d
SHA25621f8bcbffbe824c3658bb39babb8530b7a69e4d46d5e439f9605d72dbfbf4785
SHA5126f784fbc4890c7bd32f3c8fb899dd61d5ea49506ac51e858deb9a6725833b4601811435407f8ab9866141af3a04f39ba3c397383e39b858a7325f1d7218ac085
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize1KB
MD5962a10dee75f11cdcdd15712a3e05df2
SHA1b3f8017d9bfc6c5453ba7dad6abaad38fb1d5028
SHA25601fe69115267adcb8bb03f9fcbb741e52fa22acf758d6337340d1ae6593baa00
SHA512e315bbe1f3fe3fcc1388c1ec1d1282ad6eac53caecfdb1a188321700d04c8606eb052d9d23e012be75447f7d52f3a957cafd080b08a060cbf59990eaecb0fce4
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize488B
MD515f65c56b4f8b0ccd0bfd5cbd59b1635
SHA1d046bcd7eeee51bc29d17316981a7ca642fc2483
SHA2568868cb93de56a871144b25fdaf0229c43423fa9d04871b807acd860e3bad1e03
SHA51261707f6abd10b66c7a35c827d28a346b3a47183d76f444acff611af0f4a25649cdaa35a8e10d6bf3063c261850fecfc2bbf1a14dce8cab9bcae9d4009a54ea04
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize482B
MD5f7639e5f026663f15d461d292fea644c
SHA1004567a2f2dc1662946aeb2cf5d6734468b0a8ee
SHA256709ed659764e22912a5d90b295849c27fa95c4047b0854a8c5a47a76b4943940
SHA51229bdb301b85e2718100d55fbd4b7e89be7980b03ef6715d1dcc82c0dea0710aa73a4ba585ff07c868ce7cedf862f897fb161ae6e98ab912bf56ef5e25789bfed
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Filesize
352KB
MD5f76b7a03bc4db7e669adc6a0eb80322a
SHA1ad3ef2ea2dcf95e805c7be56a7d63f654328121e
SHA256c2c5560cede5fe447363e0d432707fc287312c20e92715b59700888e77eab92d
SHA512626465ba82f07cdfc0f86496e5f2e0f95aea64fd7b1c90708f99eaae78cc3f04ecf3fb22de85b647837009edb62d1125673073ec083cd82e1dd61f8ddc235e5c
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Filesize
352KB
MD5f76b7a03bc4db7e669adc6a0eb80322a
SHA1ad3ef2ea2dcf95e805c7be56a7d63f654328121e
SHA256c2c5560cede5fe447363e0d432707fc287312c20e92715b59700888e77eab92d
SHA512626465ba82f07cdfc0f86496e5f2e0f95aea64fd7b1c90708f99eaae78cc3f04ecf3fb22de85b647837009edb62d1125673073ec083cd82e1dd61f8ddc235e5c
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Filesize
352KB
MD5f76b7a03bc4db7e669adc6a0eb80322a
SHA1ad3ef2ea2dcf95e805c7be56a7d63f654328121e
SHA256c2c5560cede5fe447363e0d432707fc287312c20e92715b59700888e77eab92d
SHA512626465ba82f07cdfc0f86496e5f2e0f95aea64fd7b1c90708f99eaae78cc3f04ecf3fb22de85b647837009edb62d1125673073ec083cd82e1dd61f8ddc235e5c
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Filesize
352KB
MD5f76b7a03bc4db7e669adc6a0eb80322a
SHA1ad3ef2ea2dcf95e805c7be56a7d63f654328121e
SHA256c2c5560cede5fe447363e0d432707fc287312c20e92715b59700888e77eab92d
SHA512626465ba82f07cdfc0f86496e5f2e0f95aea64fd7b1c90708f99eaae78cc3f04ecf3fb22de85b647837009edb62d1125673073ec083cd82e1dd61f8ddc235e5c
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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
684KB
MD507e322e00371943a3577322504276f9c
SHA1492f80833aea121973be091e5634fd89d3ceb0d3
SHA256c4d33fc79173be38c3a76223263f6b37486903188e3c081586ecd62fcc651497
SHA51256155008c846382a8ddb8b814ce6208b10d69a4b340bcad7fd7d952b48ee913cafafe188ab76b6c4cbd3a7f2d065a99f4e464fd118832eb23917fe8bdded03bd
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a