General
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Target
hmm.exe
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Size
3.1MB
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MD5
ee9ed61568e4fce02ab542c67cfd1b2e
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SHA1
4df048ac26de94335d7dd6401afb0e6c9c56779c
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SHA256
b3c40f057551db10381b772c0bd45dce4f4ffc8eeba424a985f8716e595629e0
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SHA512
83dd4d2263ce3e43e10ff79822208a66653cdcf0a84d46adca966348be6a9683e992a9f1abd82c95548cdbb02f3d1b0b8e6e4f7fff301c614fba517875c372d1
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SSDEEP
49152:3vyI22SsaNYfdPBldt698dBcjHuHDLoG8O+THHB72eh2NT:3vf22SsaNYfdPBldt6+dBcjHuHPh
Malware Config
Extracted
quasar
1.4.1
Office04
azxq0ap.localto.net:3425
e51e2b65-e963-4051-9736-67d57ed46798
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encryption_key
AEA258EF65BF1786F0F767C0BE2497ECC304C46F
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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
Quasar Client Startup
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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 hmm.exe
Files
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hmm.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