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Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
21/12/2024, 21:17
Static task
static1
Behavioral task
behavioral1
Sample
e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe
Resource
win10v2004-20241007-en
General
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Target
e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe
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Size
762KB
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MD5
441b51a9b3e7dc464918b58b2cf4a28d
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SHA1
6e3181efe967ef4ec6e5f5657cc8c6f54c785de6
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SHA256
e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d
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SHA512
6f134d3765ea847deeb61522545032041cf7a288126b63012068e0b05e69875bc6b6fcc9b10c24872c56f53bb0056430ddc0b4ca25ac4c1c2b6a5972570f442d
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SSDEEP
12288:9zx3jLiXztlrsxjxXntd4/ge8vlzEZ5eXvNmCh18okuikML+C2fC0EbrjJ/ST/cQ:5xixV6HagflVN/dkVkM0fC0EXjJ/ST/r
Malware Config
Extracted
djvu
http://fuyt.org/test1/get.php
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extension
.ghas
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offline_id
miqhSGmGE63yWs53FTz0fnp8eCARpnaYE3O3p2t1
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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-0SLhZxAjRX 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: 0445JIjdm
Signatures
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Detected Djvu ransomware 18 IoCs
resource yara_rule behavioral2/memory/1912-2-0x00000000022D0000-0x00000000023EB000-memory.dmp family_djvu behavioral2/memory/1172-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1172-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1172-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1172-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1172-17-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/32-21-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/32-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/32-24-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/32-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/32-30-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/32-31-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/32-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/32-44-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/32-47-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/32-46-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/32-48-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/32-49-0x0000000000400000-0x0000000000537000-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 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 3256 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\7044a8f7-1297-4d4f-ba3f-0f48d1781d4d\\e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe\" --AutoStart" e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.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.
flow ioc 7 api.2ip.ua 8 api.2ip.ua 18 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1912 set thread context of 1172 1912 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 83 PID 5004 set thread context of 32 5004 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 87 -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1172 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 1172 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 32 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 32 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 1912 wrote to memory of 1172 1912 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 83 PID 1912 wrote to memory of 1172 1912 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 83 PID 1912 wrote to memory of 1172 1912 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 83 PID 1912 wrote to memory of 1172 1912 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 83 PID 1912 wrote to memory of 1172 1912 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 83 PID 1912 wrote to memory of 1172 1912 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 83 PID 1912 wrote to memory of 1172 1912 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 83 PID 1912 wrote to memory of 1172 1912 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 83 PID 1912 wrote to memory of 1172 1912 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 83 PID 1912 wrote to memory of 1172 1912 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 83 PID 1172 wrote to memory of 3256 1172 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 84 PID 1172 wrote to memory of 3256 1172 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 84 PID 1172 wrote to memory of 3256 1172 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 84 PID 1172 wrote to memory of 5004 1172 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 85 PID 1172 wrote to memory of 5004 1172 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 85 PID 1172 wrote to memory of 5004 1172 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 85 PID 5004 wrote to memory of 32 5004 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 87 PID 5004 wrote to memory of 32 5004 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 87 PID 5004 wrote to memory of 32 5004 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 87 PID 5004 wrote to memory of 32 5004 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 87 PID 5004 wrote to memory of 32 5004 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 87 PID 5004 wrote to memory of 32 5004 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 87 PID 5004 wrote to memory of 32 5004 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 87 PID 5004 wrote to memory of 32 5004 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 87 PID 5004 wrote to memory of 32 5004 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 87 PID 5004 wrote to memory of 32 5004 e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe"C:\Users\Admin\AppData\Local\Temp\e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1912 -
C:\Users\Admin\AppData\Local\Temp\e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe"C:\Users\Admin\AppData\Local\Temp\e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.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:1172 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\7044a8f7-1297-4d4f-ba3f-0f48d1781d4d" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:3256
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C:\Users\Admin\AppData\Local\Temp\e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe"C:\Users\Admin\AppData\Local\Temp\e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5004 -
C:\Users\Admin\AppData\Local\Temp\e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe"C:\Users\Admin\AppData\Local\Temp\e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:32
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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
MD5192f72064f34e2a76c064f5a7099bc06
SHA173786bd2c681409ecd67f0b8b03985b72dc04c0a
SHA256b5ba5dce14069343bb2a9fecbde6c489f65bef71ac3e5d72d3bb22bad7980268
SHA5124fee17ca9173bee2ce42b560e512b9a776a73969965e1b21153459d16d61c0a7f1e9da7920b5128bbc2c2f6036006de91700f84bd0665140c903daded2b2fea0
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD5f8a0485346db96175ff2d018ede0e11a
SHA117c9090579532c4fe7c162ff4fe0c92d5c00c25b
SHA256483070605879c41b25647b2c1acd728ea3d9132510497005bbbbc09002dbdfc3
SHA512bb25523d0010b3dc0aee344ce6a3a0910af264231ccd7775c5ea9a008d394da561740300e6e4eefd2f15c469b217140e932403f42f3d1779cab9094b1e1302d9
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C:\Users\Admin\AppData\Local\7044a8f7-1297-4d4f-ba3f-0f48d1781d4d\e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d.exe
Filesize762KB
MD5441b51a9b3e7dc464918b58b2cf4a28d
SHA16e3181efe967ef4ec6e5f5657cc8c6f54c785de6
SHA256e46a45be45abafe25e65fd8fac9bea199be7441d054f29b34e156909b509105d
SHA5126f134d3765ea847deeb61522545032041cf7a288126b63012068e0b05e69875bc6b6fcc9b10c24872c56f53bb0056430ddc0b4ca25ac4c1c2b6a5972570f442d