Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20230220-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
5ddcc9baa65b17926f2262a9fe530b93
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SHA1
6fa7fd0df2a9928b6c063fc03b10bdcd84e26008
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SHA256
9ce882116ae23f4d32f4937f2b61ca8deea0c476be41fdd3158dadc14335a45f
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SHA512
79fd0d0ff6115972017fef2c6feeddaf26db86bb69437ca431abd2ba35d4b6c249c7150f3969fd589006b2d3defa674c589610caee5a1585e50f027b06f6aa06
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SSDEEP
49152:+vaY52fyaSZOrPWluWBuGG5g5hPbRJ6KbR3LoGd/THHB72eh2NT:+vv52fyaSZOrPWluWBDG5g5hPbRJ6k
Malware Config
Extracted
quasar
1.4.1
Office04
127.0.0.1:4782
57af6279-a68f-4f70-9b6b-439dccca1ff4
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encryption_key
1B9C51B90AB1DE21D6A313176E631A6295A0C2E6
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install_name
Memes.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
memes
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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 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