Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20231129-en
General
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Target
tmp
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Size
3.1MB
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MD5
fed87b42561dafe8a9ee8c5ffa2e434e
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SHA1
18b0e41e2835c92572d599e6e4e0db63e396cf7f
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SHA256
83d1e736a793ba5d14b51f8ef8310bf13a2591fc40ad34d1fa3e74acf5d40c70
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SHA512
5b626d7470603a64be2e1d053f5732cc93ae1774a76006c582d6fe4cb7e5d443087b7797350da03e50622ac7e452b6c8121be8dcedec558c1f75499ba9547401
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SSDEEP
49152:KvbI22SsaNYfdPBldt698dBcjHFyknbRNLoGdwNoTHHB72eh2NT:Kvk22SsaNYfdPBldt6+dBcjHFykvA
Malware Config
Extracted
quasar
1.4.1
Office04
209.182.234.69:5000
1d7ed661-c682-43f5-973b-fc9bfdbd96a8
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encryption_key
ABD5B6E1498842B0D7FFC59005525F3510E9622D
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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 tmp
Files
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tmp.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