Analysis
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max time kernel
186s -
max time network
203s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
16-05-2022 03:23
Static task
static1
Behavioral task
behavioral1
Sample
dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe
Resource
win10v2004-20220414-en
General
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Target
dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe
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Size
765KB
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MD5
b472747014eeeaa6686efbf385f3cbad
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SHA1
9105f34af98546dc2a701f54ce75b5bb1439db3f
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SHA256
dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb
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SHA512
a7794af27d1d9a1d49e5f1f0946914acf5d6438d86ad10510774bdfe98da11400c340c4f49d5bf6d58e55d7210c10404f6906b4b8e0403b96f72033f1cc51504
Malware Config
Extracted
djvu
http://ugll.org/test1/get.php
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extension
.byya
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offline_id
e8w5MeiBrZVoHLoloPm9MNlKBzXH70BB3B2KQ7t1
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payload_url
http://zerit.top/dl/build2.exe
http://ugll.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-2w6I3WpXEh 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: 0475JIjdm
Signatures
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Detected Djvu ransomware 5 IoCs
Processes:
resource yara_rule behavioral1/memory/1520-131-0x0000000004990000-0x0000000004AAB000-memory.dmp family_djvu behavioral1/memory/2732-133-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2732-134-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2732-135-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2732-136-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 80 api.2ip.ua 81 api.2ip.ua -
Suspicious use of SetThreadContext 1 IoCs
Processes:
dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exedescription pid process target process PID 1520 set thread context of 2732 1520 dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exedescription pid process target process PID 1520 wrote to memory of 2732 1520 dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe PID 1520 wrote to memory of 2732 1520 dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe PID 1520 wrote to memory of 2732 1520 dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe PID 1520 wrote to memory of 2732 1520 dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe PID 1520 wrote to memory of 2732 1520 dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe PID 1520 wrote to memory of 2732 1520 dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe PID 1520 wrote to memory of 2732 1520 dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe PID 1520 wrote to memory of 2732 1520 dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe PID 1520 wrote to memory of 2732 1520 dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe PID 1520 wrote to memory of 2732 1520 dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe"C:\Users\Admin\AppData\Local\Temp\dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1520 -
C:\Users\Admin\AppData\Local\Temp\dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe"C:\Users\Admin\AppData\Local\Temp\dbf969f428f5a928d1977cfa4754ec12ab49eb67c9e31c483bb2710f23b14ffb.exe"2⤵PID:2732
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