Behavioral task
behavioral1
Sample
payload.exe
Resource
win7-20230831-en
General
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Target
payload.exe
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Size
3.1MB
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MD5
8fc0821388194931dfe1cd3449ac20b6
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SHA1
46a508660eb568bbc6c0aa1105ca0727344ed15a
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SHA256
5068baba39cbe96a1871e84e7dec59ae30c57db69b9a1d4cdb6ce6231010f925
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SHA512
87e3dc03eb1c2483225e6dbd5fec8bc8507f184eb2838618ca5d5ce10d0254d695552ab8cf11708cfff01e1db06d64203d3f5c6f0207b3efc49a1f1ac35d5a95
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SSDEEP
49152:KvjI22SsaNYfdPBldt698dBcjHPdRLoGdETHHB72eh2NT:Kvc22SsaNYfdPBldt6+dBcjHPdh
Malware Config
Extracted
quasar
1.4.1
EvilCorp
45.76.251.189:4782
3c99b7c8-04ac-4ad4-aa7c-7b119abe8b01
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encryption_key
FC0C7B6B6F7C79B3FD67D730C58499773D6F93EC
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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 payload.exe
Files
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payload.exe.exe windows:4 windows 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