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Analysis
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max time kernel
145s -
max time network
134s -
platform
windows7_x64 -
resource
win7-20241023-en -
resource tags
arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system -
submitted
22/12/2024, 18:46
Static task
static1
Behavioral task
behavioral1
Sample
55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe
Resource
win10v2004-20241007-en
General
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Target
55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe
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Size
814KB
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MD5
960c9dad66df9d52c73f149540b6f7b3
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SHA1
11920d07db2635587e2bb198d7c209d2e1be65ad
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SHA256
55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68
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SHA512
f1a64cf32418b1c932a0dc93521895eed60a87abdebba5f0c3bac4e3345655285038077e15f44014b6e840a07e5d9d1e944ed422148b62bc5059cf70537d0a14
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SSDEEP
24576:2sX+/5uah35/BV2fHEPPtgjS0f6cCWdcPub:2JwHgCjS0FCY
Malware Config
Extracted
djvu
http://acacaca.org/fhsgtsspen6/get.php
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extension
.vveo
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offline_id
rE5LpDv2ftYRXAo7bC18EpzfRMTHSGjgfyIMfZt1
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payload_url
http://rgyui.top/dl/build2.exe
http://acacaca.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-QsoSRIeAK6 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: 0533Jhyjd
Signatures
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Detected Djvu ransomware 15 IoCs
resource yara_rule behavioral1/memory/2656-2-0x0000000001E50000-0x0000000001F6B000-memory.dmp family_djvu behavioral1/memory/1668-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1668-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1668-9-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1668-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2820-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2820-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2820-48-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2820-49-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2820-50-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2820-54-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2820-63-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2820-65-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2820-66-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2820-67-0x0000000000400000-0x0000000000537000-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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Modifies file permissions 1 TTPs 1 IoCs
pid Process 2932 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\47abd743-ff6f-4db9-a45b-428c13b56cb2\\55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe\" --AutoStart" 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.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 4 api.2ip.ua 5 api.2ip.ua 9 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2656 set thread context of 1668 2656 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 30 PID 2904 set thread context of 2820 2904 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 34 -
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 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1668 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 1668 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 2820 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 2820 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2656 wrote to memory of 1668 2656 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 30 PID 2656 wrote to memory of 1668 2656 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 30 PID 2656 wrote to memory of 1668 2656 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 30 PID 2656 wrote to memory of 1668 2656 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 30 PID 2656 wrote to memory of 1668 2656 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 30 PID 2656 wrote to memory of 1668 2656 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 30 PID 2656 wrote to memory of 1668 2656 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 30 PID 2656 wrote to memory of 1668 2656 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 30 PID 2656 wrote to memory of 1668 2656 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 30 PID 2656 wrote to memory of 1668 2656 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 30 PID 2656 wrote to memory of 1668 2656 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 30 PID 1668 wrote to memory of 2932 1668 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 32 PID 1668 wrote to memory of 2932 1668 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 32 PID 1668 wrote to memory of 2932 1668 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 32 PID 1668 wrote to memory of 2932 1668 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 32 PID 1668 wrote to memory of 2904 1668 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 33 PID 1668 wrote to memory of 2904 1668 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 33 PID 1668 wrote to memory of 2904 1668 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 33 PID 1668 wrote to memory of 2904 1668 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 33 PID 2904 wrote to memory of 2820 2904 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 34 PID 2904 wrote to memory of 2820 2904 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 34 PID 2904 wrote to memory of 2820 2904 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 34 PID 2904 wrote to memory of 2820 2904 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 34 PID 2904 wrote to memory of 2820 2904 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 34 PID 2904 wrote to memory of 2820 2904 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 34 PID 2904 wrote to memory of 2820 2904 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 34 PID 2904 wrote to memory of 2820 2904 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 34 PID 2904 wrote to memory of 2820 2904 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 34 PID 2904 wrote to memory of 2820 2904 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 34 PID 2904 wrote to memory of 2820 2904 55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe"C:\Users\Admin\AppData\Local\Temp\55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2656 -
C:\Users\Admin\AppData\Local\Temp\55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe"C:\Users\Admin\AppData\Local\Temp\55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1668 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\47abd743-ff6f-4db9-a45b-428c13b56cb2" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2932
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C:\Users\Admin\AppData\Local\Temp\55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe"C:\Users\Admin\AppData\Local\Temp\55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2904 -
C:\Users\Admin\AppData\Local\Temp\55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe"C:\Users\Admin\AppData\Local\Temp\55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2820
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
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
MD5efbc397b52d6ec2b20998c4544de93b3
SHA1c29740a18ec5430269a055fa313f3a468775baa2
SHA256d7a24b3bdfac6776671c52e2f924a668e4e814fcb202186379f23525b339f057
SHA5128c508d6f8f26d369c5fb4f7cc7ac78e5246cb2dcd2753c094713eba1a7f63f688e5b1a7e25defa9ebf560b85b46b83e62e616877b209566b9a058a26515cbdb2
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD5103ad1227651538b2340a0685635d579
SHA1b8c30d937ba03044df1b0386735bbdff8183e64f
SHA256be7fc119d6e17ea2c34b2c7d63710c8986ba2594c2ccbc83e53ebfefa3e7ceff
SHA5121294752270ad1d31da80e45ef1d1ef300cd841106180071c4c19fc266849c6b43decbae37ddc1e0ab4e53cc0f973e4aa1bf7db0daa35439a1f071813f9a7a10d
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C:\Users\Admin\AppData\Local\47abd743-ff6f-4db9-a45b-428c13b56cb2\55e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68.exe
Filesize814KB
MD5960c9dad66df9d52c73f149540b6f7b3
SHA111920d07db2635587e2bb198d7c209d2e1be65ad
SHA25655e76df782e2a76e93ae1cc632942a169794a544b9c472e1043ea5a5eb70bd68
SHA512f1a64cf32418b1c932a0dc93521895eed60a87abdebba5f0c3bac4e3345655285038077e15f44014b6e840a07e5d9d1e944ed422148b62bc5059cf70537d0a14
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b