General
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Target
Z877Hdn.exe
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Size
3.1MB
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MD5
7ed897b505b072b2bf8e9defacd37cf3
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SHA1
afd9f5c336d142ac8ba98d4a4a8a65de7f902051
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SHA256
9bb743bcf31905ef1c6f43d45c38c1f28ad352bd9a26509bbfbedc915eb41a9c
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SHA512
a7027f2d6cb4995a6df16da9933544425b7577085a9da1b8150aa4b4a33fc388bb5814dd52a013dea4e22f68b73dde62798615feefc40b369c00c82be4fce188
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SSDEEP
49152:bvSI22SsaNYfdPBldt698dBcjHWCO1JGLoGdqRYUTHHB72eh2NT:bv/22SsaNYfdPBldt6+dBcjHWCha
Malware Config
Extracted
quasar
1.4.1
negro
192.168.254.138:4782
27d614ba-ea44-400a-9548-ce68ca6d90a9
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encryption_key
26B037B4C62A63CF09010E0757669A9491063FC4
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install_name
java.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource Z877Hdn.exe
Files
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Z877Hdn.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