Behavioral task
behavioral1
Sample
PC_Booster.exe
Resource
win7-20241010-en
General
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Target
PC_Booster.exe
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Size
3.1MB
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MD5
81d8571af28e42e2bbe60b5118173da6
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SHA1
a826876a268bb7ebcf67b050707ff8a8e05ee6ef
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SHA256
5fccda50065844a012e1425d3d9d60b608c6d5dc07514d32d04b1c55a1eade36
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SHA512
b6f2dc77b046e4577a996495a6a5589f6ea263e61570ff362f2fb3386dc2b5c80c63ee6ab0678b36e1e11f7a3e46a9c5ed2cf33a5fb523e6afaed0f5a38da347
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SSDEEP
49152:KvyI22SsaNYfdPBldt698dBcjHF9rwmCPLoGZB3voTHHB72eh2NT:Kvf22SsaNYfdPBldt6+dBcjHF9rQ
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.1.18:4782
4d099eab-30e3-4c3b-bf50-bf77e2e70e0f
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encryption_key
04E6B8EB331AA0F74187E430ADEDBC1B79B631E4
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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 PC_Booster.exe
Files
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PC_Booster.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