General
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Target
Client-built.exe
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Size
3.1MB
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MD5
dc2017d875a294af1881e553b11b8717
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SHA1
40b4ab857db967b61d4708943f157f248c49b844
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SHA256
5605c73c546e1dc58135d9f966e449d4acf0e791f4095989f4b746522e726f27
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SHA512
faf2982b82dade07c2c88425bdc8f77ee4ee6e28d850f612db7e370547afd2c6337b6cc5b0087685a199e1e83d6666fcaae0109aa89bf6ea4ca2d150b9972262
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SSDEEP
49152:PvEt62XlaSFNWPjljiFa2RoUYIkdyRfDKoGdf+THHB72eh2NT:PvY62XlaSFNWPjljiFXRoUYIkdyRfm
Malware Config
Extracted
quasar
1.4.1
Office04
0.tcp.eu.ngrok.io:12165
fbfe2df1-f4ca-4d07-920f-4075f27bc8a1
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encryption_key
B22432E943AA88394E5F97387369DCA7D8B67608
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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
system 32
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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 Client-built.exe
Files
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Client-built.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