Behavioral task
behavioral1
Sample
4408-759-0x0000000000400000-0x0000000000537000-memory.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
4408-759-0x0000000000400000-0x0000000000537000-memory.exe
Resource
win10v2004-20231215-en
General
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Target
4408-759-0x0000000000400000-0x0000000000537000-memory.dmp
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Size
1.2MB
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MD5
7832af38fbb9c8fff1a8bc9e8a2cc375
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SHA1
daff837904608f66e1e891852a0cd3b20c84825d
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SHA256
c9f7d3fdbad93f2c4c3e0ef5b32080cdd5b6c4d6dbcca15fd013c21cfa544907
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SHA512
e923f4a03e3c78ca01e2ea494865fec41298d7eee3ffa6edf637ccb32af9bf6584bb769882ea2d7d6a740a757fd02bff408b6a29c0cb184f2eeb6ed01db658cd
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SSDEEP
24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8NWQHUq7:F0dwAYZt6C31WeTVRPOhN7Uq7
Malware Config
Extracted
djvu
http://habrafa.com/test1/get.php
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extension
.lkhy
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offline_id
OxV6DGl22io8sqMOW1zCCOlzPiv4f1Vqzw7Y8zt1
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payload_url
http://brusuax.com/dl/build2.exe
http://habrafa.com/files/1/build3.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 1 IoCs
resource yara_rule sample family_djvu -
Djvu family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 4408-759-0x0000000000400000-0x0000000000537000-memory.dmp
Files
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4408-759-0x0000000000400000-0x0000000000537000-memory.dmp.exe windows:5 windows x86 arch:x86
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Sections
.text Size: 809KB - Virtual size: 809KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 247KB - Virtual size: 246KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 25KB - Virtual size: 128KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 512B - Virtual size: 480B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 41KB - Virtual size: 40KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ