Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240903-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
56dfb8108dcbb6c7768b75190888db8d
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SHA1
1c72a571ef5054ada4bb3807a5b3b46b37acd8d3
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SHA256
4a43c20468b4ac8902a8cc9ef97dad058186084d01cb60d4262894c6b32361ed
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SHA512
0fa25d0dc445b548cff3aa0141d740c211fa8cc6d85755703bf41ba275c29a2a001f302ed18812c451425bf83665bb1034e095fa91e932abdf8e4c8f6c33b239
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SSDEEP
98304:YwpMYw6Bg1nG2VuKeuvYSuJsnYOd9uysypAgV0WNVo:NEqypt
Malware Config
Extracted
quasar
1.4.1
obf
45.131.111.80:6666
2e641487-85b0-40c1-809b-d0bdb9ba57e8
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encryption_key
7E5AC03E4AED67063F3FADC39DF8599FF4500C48
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install_name
Windows Host Proccess.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Windows Host Proccess
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subdirectory
WIndowsSupport
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