Behavioral task
behavioral1
Sample
xx.exe
Resource
win7-20240903-en
General
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Target
xx.exe
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Size
3.1MB
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MD5
b04c1d7a23fb7a01818661a60a0b5ae5
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SHA1
1c5c265f823208aa27d0df9cfa97ff382f32cf0c
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SHA256
5c4239be04a1ead5ea81bc92463d72209411882b369dd58704769d409192e1ff
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SHA512
4e0ecd65d2337507989a479ab4f18a43c128a4cbb54180cce230e0c69a32bf6a88830b94c39a08d3d8fbb0cc169c0ebe914a0bc6924698e260efbade660c4e75
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SSDEEP
49152:PvbI22SsaNYfdPBldt698dBcjHUv9w8BxzYoGdR+HTHHB72eh2NT:Pvk22SsaNYfdPBldt6+dBcjHiwbI
Malware Config
Extracted
quasar
1.4.1
Office04
82.64.156.123:80
22fbcdf1-92c4-4afa-81b3-8940a1676372
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encryption_key
030FEA14D8B12C3F86A426D37EB0940C8225BBC8
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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 xx.exe
Files
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xx.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