Behavioral task
behavioral1
Sample
Stub_1456.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
Stub_1456.exe
Resource
win10-20240404-en
Behavioral task
behavioral3
Sample
Stub_1456.exe
Resource
win10v2004-20240802-en
General
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Target
Stub_1456.exe
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Size
3.2MB
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MD5
75bbc8d1c85cc88923efcbe268cf5f70
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SHA1
5cd20161023869b18376ef4b0e8923ebed5be322
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SHA256
c017f0180ebf341506a961d56e62931298e3a315f26382015d6bbdf04b8ac1cc
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SHA512
9881845d5bee2d5863d657462f212f9f46c8ebc7b1a335354f88513d8ff495503bd657f1668e1a26ec37fc9a846600d6baadca5fda115bb773fa5c9f40104944
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SSDEEP
49152:bPL3rDCpMlyMuYg15lyxcjFWJ4JmQIYxm8Gbz9deqTHHB72eh2NT:bT7OpMOlWcjsJ4QQXxm
Malware Config
Extracted
quasar
1.4.1
Test
147.185.221.22:13676
aaf4767c-dd88-4c3f-9683-69a87558c907
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encryption_key
9E968F05BD874BA1BE086FD1774A027473823F49
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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
Jerk
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 Stub_1456.exe
Files
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Stub_1456.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