General
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Target
hello.exe
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Size
3.1MB
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MD5
b92b7e16f21a97fbe21c4c45deb00587
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SHA1
e4af65acfac45c31dceacdf9a2e1d18cde2537c2
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SHA256
651ed1a03871a47dcf548e56fe4cefb8862a89a27f01f2e377bd68dfe1ca531f
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SHA512
7c5813bf73ee7deca78774861b2632d4a0fb7b3b62996cc54ae0b16baa62a0f360f31fa810b73c5fc922321b6ce0807e69bc02e35f98d7f350086283f8836931
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SSDEEP
49152:zvOlL26AaNeWgPhlmVqvMQ7XSK8Hzh7mzBSoGdtkTHHB72eh2NT:zv+L26AaNeWgPhlmVqkQ7XSK2zhv
Malware Config
Extracted
quasar
1.4.1
Test
47.134.26.200:4782
193.161.193.99:23325
9cabbafb-503b-49f1-ab22-adc756455c10
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encryption_key
8B93C77AC1C58EA80A3327E9FD26246A79EF3B8E
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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
MS Build Tools
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subdirectory
Microsoft-Build-Tools
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 hello.exe
Files
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hello.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