Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20241010-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
6d548f65275db48621c739026edba1d6
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SHA1
7e8f3e64920984e407cfa5d257e67bfb885c67d8
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SHA256
445933fc1bdf9469526b8b84c5d6453d1db0d7fefe24bf50af987e1dabc60c78
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SHA512
c18b1593def2a6a1834016c61ba3be0bcd5e8dc37a5a889f1cbb924a252548ce3a5ac618a17c20112109015d509933a6a9c6823e437bf0e400f196de4f91266a
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SSDEEP
49152:rvOI22SsaNYfdPBldt698dBcjHxuRJ6PbR3LoGdsnTHHB72eh2NT:rvj22SsaNYfdPBldt6+dBcjHxuRJ6h
Malware Config
Extracted
quasar
1.4.1
Office04
5.252.74.51:1337
c9ab7a3b-f343-40bc-bf8b-f072c9beccf5
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encryption_key
22D8B6518A5AB3703F6FD0075F58F8B4DB404298
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Client-built.exe
Files
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Client-built.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 3.1MB - Virtual size: 3.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ