Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20230831-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
480c9d854f88c8a033c9b4e9ebb51b99
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SHA1
5ad932ecb4fef67c2b2668175136e45cfb4fa87d
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SHA256
cbe7fea28ef1247a3785c6cc912c5142990bf95e0bdbc0970400a1416d9b88ad
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SHA512
285eece95482b37f17e023ee1c26a2aa15066015d960b0c046cae1002f8af902854a5c07977a751a1e5a6ca432e049913e62bcd2c49f4f2725dcdad558984577
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SSDEEP
49152:1vahBYjCO4Dt2d5aKCuVPzlEmVQL0wvwkaIgxNESEIk/ibLoGdgZazTHHB72eh2t:1vUt2d5aKCuVPzlEmVQ0wvwfrxbnQa
Malware Config
Extracted
quasar
1.4.1
School01
10.10.10.130:4782
10.10.10.130:5000
f9c62ade-0f06-4c0a-8ad8-5b4ae4808372
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encryption_key
4C5C5F46BBF00C6289ECEE7D680DF7D407856D81
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install_name
google_crash_reporter.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Google Chrome Crash Reporter
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subdirectory
Google Chrome
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
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: 7KB - Virtual size: 7KB
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