Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240903-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
4a0c6269f041778479be25c053014de1
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SHA1
7474c9d50ab9e48e165df40cfb5d45873429c1b3
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SHA256
f0b341cff383ba4f0143639eb0515fbdc023b8c98815a4f72191114ab75799b6
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SHA512
24f9125960573e4a99c9407d6e7d543918c921bff1caabd7c394132eaea370c89b242735089af064639b4ccc070a6844b35785ef6be0db9d817ad26b55a1c65a
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SSDEEP
49152:Kvjt62XlaSFNWPjljiFa2RoUYIgxDEDwCk/JxJoGdSTHHB72eh2NT:Kvx62XlaSFNWPjljiFXRoUYIgx3v
Malware Config
Extracted
quasar
1.4.1
Office04
x5sql-62870.portmap.host:62870
42098932-ec6f-4d72-ab22-06528c985236
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encryption_key
3300C61943A333F53FD91D0A93268174467B5322
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install_name
ntodsk.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Microsoft
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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: 7KB - Virtual size: 7KB
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