Behavioral task
behavioral1
Sample
antivairus.exe
Resource
win7-20240903-en
General
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Target
antivairus.exe
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Size
3.1MB
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MD5
2477f49a356c0698fc601aef9ed64d08
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SHA1
56eb441feffcac5f7a8889f16c8cbc9255d25979
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SHA256
2848ac271c559c6fae6e1ed2ab87b6c78b1eea35945c6f0457872804077ce3a4
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SHA512
6f091994efffb7a0b2ac90ce61c5050da2be48abd33060b3461539ecfedee72a691142899c3f2b9fe4678f0ae2c7b1b16aeb1b91932b3c0a785b0625105659a8
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SSDEEP
49152:SvyI22SsaNYfdPBldt698dBcjH7sRJ6BbR3LoGdXTHHB72eh2NT:Svf22SsaNYfdPBldt6+dBcjH7sRJ6j
Malware Config
Extracted
quasar
1.4.1
Office04
190.104.116.8:4782
e51e2b65-e963-4051-9736-67d57ed46798
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encryption_key
AEA258EF65BF1786F0F767C0BE2497ECC304C46F
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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
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource antivairus.exe
Files
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antivairus.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