Analysis
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max time kernel
112s -
max time network
122s -
platform
windows10_x64 -
resource
win10-en-20211014 -
submitted
06-12-2021 10:32
Static task
static1
Behavioral task
behavioral1
Sample
bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe
Resource
win10-en-20211014
General
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Target
bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe
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Size
827KB
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MD5
ec8314507bfd19af33ed45dd9497cfd5
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SHA1
76171869e33ed47fe527d976dd8254488723db08
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SHA256
bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6
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SHA512
ba90648c6d8b98bff30c0d219f4cd075ecb71e3e46d8484c5cf6f508a0cedba117e76726aa3cc607fd24249c0080c0661ff9cd5f8b444136be6c11248fd68e3d
Malware Config
Extracted
djvu
http://tzgl.org/fhsgtsspen6/get.php
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extension
.wnlu
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offline_id
gYuqQ5GsAaJom08TivUVhlPzZDKd916x4NcXrWt1
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payload_url
http://kotob.top/dl/build2.exe
http://tzgl.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-m8LBBi8x8F 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: 0357Sigrj
Signatures
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Detected Djvu ransomware 6 IoCs
Processes:
resource yara_rule behavioral1/memory/3808-119-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3808-120-0x0000000000424141-mapping.dmp family_djvu behavioral1/memory/2732-121-0x0000000002220000-0x000000000233B000-memory.dmp family_djvu behavioral1/memory/3808-122-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/816-128-0x0000000000424141-mapping.dmp family_djvu behavioral1/memory/816-129-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\8a4bdde2-0caa-4ba6-961c-6370d8bac0f4\\bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe\" --AutoStart" bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.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.
Processes:
flow ioc 8 api.2ip.ua 9 api.2ip.ua 16 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exebba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exedescription pid process target process PID 2732 set thread context of 3808 2732 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 1012 set thread context of 816 1012 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Processes:
bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exebba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exepid process 3808 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe 3808 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe 816 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe 816 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exebba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exebba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exedescription pid process target process PID 2732 wrote to memory of 3808 2732 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 2732 wrote to memory of 3808 2732 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 2732 wrote to memory of 3808 2732 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 2732 wrote to memory of 3808 2732 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 2732 wrote to memory of 3808 2732 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 2732 wrote to memory of 3808 2732 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 2732 wrote to memory of 3808 2732 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 2732 wrote to memory of 3808 2732 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 2732 wrote to memory of 3808 2732 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 2732 wrote to memory of 3808 2732 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 3808 wrote to memory of 428 3808 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe icacls.exe PID 3808 wrote to memory of 428 3808 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe icacls.exe PID 3808 wrote to memory of 428 3808 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe icacls.exe PID 3808 wrote to memory of 1012 3808 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 3808 wrote to memory of 1012 3808 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 3808 wrote to memory of 1012 3808 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 1012 wrote to memory of 816 1012 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 1012 wrote to memory of 816 1012 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 1012 wrote to memory of 816 1012 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 1012 wrote to memory of 816 1012 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 1012 wrote to memory of 816 1012 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 1012 wrote to memory of 816 1012 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 1012 wrote to memory of 816 1012 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 1012 wrote to memory of 816 1012 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 1012 wrote to memory of 816 1012 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe PID 1012 wrote to memory of 816 1012 bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe"C:\Users\Admin\AppData\Local\Temp\bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2732 -
C:\Users\Admin\AppData\Local\Temp\bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe"C:\Users\Admin\AppData\Local\Temp\bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe"2⤵
- Adds Run key to start application
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3808 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\8a4bdde2-0caa-4ba6-961c-6370d8bac0f4" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:428
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C:\Users\Admin\AppData\Local\Temp\bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe"C:\Users\Admin\AppData\Local\Temp\bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1012 -
C:\Users\Admin\AppData\Local\Temp\bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe"C:\Users\Admin\AppData\Local\Temp\bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
PID:816
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
MD51c63500df0b57e29edd1a5867d9f0e9b
SHA10475a0611ac4d171e90b46303b96317fc186b15d
SHA256c8f7c1bd12b80996707a806866379d91dc3008d5d2b0eeeb6d97d418aeeb7914
SHA51229b914ffe63496d98e8ffb76afde49702888743c88bd0fc6aabdf3e8855e3a5389d933a29ccb4564e8d3198c159a1debfb56d6f39f428689f8eb4d497b341bde
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
MD565052acb8dc97b38007797064162c9a1
SHA1862cf5f74d74b85103b088650a230ed0c6d32df3
SHA256ef406913c83356f132bbc250646c24befee2acfdabbc9debcbca68c1da01a30f
SHA512976f4bd21af190164d04534f4e534d44e14fd5d3c6798421f84ead4e0a53f25d386d4b59bfe0c7c5865af4f22593d975d6b48292b024a4b6ca0d65ff6ee735bd
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
MD5b930bdb63ec92ea2c4e2fab0c2198c9f
SHA13d1645a8f1ba998b237f8a401ad46060cb8e1918
SHA256c1c5515a364428454119603cae6571d33ea4da83bd00e40f8805320345edacbb
SHA5124f08e89d0979de7b973268c66a31452a2097e769a21159650842eb14182a7f92ac1c6f358497eb35dbc3c198e311fc9618f256700a39c767a0bae8b2a157a569
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
MD59d147615168f3666b07a9571d5cd76ba
SHA1d85807abf04ef99b69109bf62229335e46abef72
SHA25683b47957f46dd33d222b569f50bca7f8ee6587b3ac81fd9531dbadabaffd8648
SHA512bef4ff9d9d9f8e12231e38b6b5c6b52308fde1a9df0db38c1a71cae32d2c00085645f7e000652d5495ee7c1a3766982dfe69136df2f486c6cb49e5d3f935b28a
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C:\Users\Admin\AppData\Local\8a4bdde2-0caa-4ba6-961c-6370d8bac0f4\bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6.exe
MD5ec8314507bfd19af33ed45dd9497cfd5
SHA176171869e33ed47fe527d976dd8254488723db08
SHA256bba85819033ea0a14da507f3ed98da5dcefe01d3a65e9e0880a2f405bcfb89f6
SHA512ba90648c6d8b98bff30c0d219f4cd075ecb71e3e46d8484c5cf6f508a0cedba117e76726aa3cc607fd24249c0080c0661ff9cd5f8b444136be6c11248fd68e3d