Behavioral task
behavioral1
Sample
12e23e2fwe.exe
Resource
win7-20231129-en
General
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Target
12e23e2fwe.exe
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Size
3.1MB
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MD5
7ac59720426982a73a0c5a24c5ff7061
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SHA1
f93f9f74acae3b123a54f1ea8eb796f740673c04
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SHA256
c59a2ce5d7bcebcfd2811bcd86a09161d00160599933fef19a1db64436426433
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SHA512
3385e1b8f577f15da259032cd50111a362ba40b936be347acb548e756b4779686ed57cd02a3b0440666374a08df0131796e126bcbf8f32465aa22489d4eed25a
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SSDEEP
49152:Cvnt62XlaSFNWPjljiFa2RoUYIfYtImz4boGd/rTHHB72eh2NT:Cvt62XlaSFNWPjljiFXRoUYIfYtu
Malware Config
Extracted
quasar
1.4.1
Office04
10.0.0.236:4782
8eab765f-f569-4ea8-817b-dd5d17111e06
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encryption_key
4462996B12A7C2645E41DC09FEC3A2A198EEBF4E
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install_name
Client.exe
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log_directory
Logskjey
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reconnect_delay
500
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startup_key
SubDir
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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 12e23e2fwe.exe
Files
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12e23e2fwe.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