Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240705-en
General
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Target
Client-built.exe
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Size
3.3MB
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MD5
449c9192baa7503151f8bb30aa32153b
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SHA1
3906a9de42cb337d89e49542660f38144138d7ba
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SHA256
2d43f484fc7f954ecd5da337017ab2eb58c26ef39ec07e9bf5d53af63c9c4db8
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SHA512
c1fe393d34f2af903c755c9d18faeb71193ef6ceb285d1900c2b6df1798346f927367ab32c5b2de5f39e47b781f8a94224642effe2400323f7a0153a0c7fa624
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SSDEEP
49152:N6LFXL5Z8hlPKxXavYPBdjSx7sx+5I2jEyTHHB72eh2NT1:N6p5Z8hlPKxXavIXc7sx0ux
Malware Config
Extracted
quasar
1.4.1
SKIDS
147.185.221.22:6712
9dcff5fc-a88b-409b-a00a-590c080de54a
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encryption_key
36CF4D30A4E867DAD17ECBDA8EC17D90EA239A59
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install_name
Windows Host Process.exe
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log_directory
Windows-Logs
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reconnect_delay
3000
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startup_key
Windows Host Process
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subdirectory
Windows
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: 179KB - Virtual size: 179KB
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