General
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Target
AHHAFS.exe
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Size
3.1MB
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MD5
63549bde2568a8d9fe3636559ff908fa
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SHA1
e86ba5584ee39d224ac7662041d99e85ac8b4f43
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SHA256
cfb7003085b0091a90edb102a6ddfea8c3bae48460994e733fa5134bdec9dfa9
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SHA512
c64902094fe7b036c3681cc2eced4cb4872d1a6a0e02c4cb1ac2f74ee8d2c9d4570dafeeba39e0ffdf13d5365c60d0c8dc21eb9d42d0d673e16eafdbc5296f04
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SSDEEP
49152:/vyI22SsaNYfdPBldt698dBcjHU2RJ6/bR3LoGdFTHHB72eh2NT:/vf22SsaNYfdPBldt6+dBcjHU2RJ6R
Malware Config
Extracted
quasar
1.4.1
Office04
serveo.net:4782
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
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource AHHAFS.exe
Files
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AHHAFS.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