Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240729-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
9c5ec5683c91176f1146cbc9b427e518
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SHA1
2eccfa9607f1a9023079c4f88aa72b5a552bed70
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SHA256
c6f8be78988d98bbc1f083b60acec86fed6259515277bc74b1eb138d1c151c82
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SHA512
5aa2bc8d741b10e1d94431db71e69d6d19f1ca52cafc3580c2efcae45c82d74932b42a969a9ef69973aaa799809cef648477fae5356f456953d29335fe854fcc
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SSDEEP
49152:mvyI22SsaNYfdPBldt698dBcjHll6bs1JGLoGdd8FiTHHB72eh2NT:mvf22SsaNYfdPBldt6+dBcjHWbb
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.1.12:4782
0372494a-0bed-4fef-b80b-1e5a15a502c1
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encryption_key
C79910CC46FB1EA158892672F174AE58510A5B0F
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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 Client-built.exe
Files
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Client-built.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