Behavioral task
behavioral1
Sample
app1.exe
Resource
win7-20240903-en
General
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Target
app1.exe
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Size
3.1MB
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MD5
829605130c3b20269b5c56ca026241ab
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SHA1
61f20276c524f8852911b027b95cecff5075e650
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SHA256
fab76f9a2d47107dffa334b26f109cbe8a4f06ee8b936a622dc1f571e8412c23
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SHA512
f097b0d4c461ae9fddb29cb42722041d78ef6a7bc01754fca72d321e8dd3359b41438be8639fa00c21f673ff0380ea9316b99dd648f47a4c6bdd6dc74fbc293b
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SSDEEP
49152:KvWI22SsaNYfdPBldt698dBcjHaAaax7martAoGd8rtolTHHB72eh2NT:Kv722SsaNYfdPBldt6+dBcjHBp7ys
Malware Config
Extracted
quasar
1.4.1
KDOTCrypt
fedx.ddns.net:7000
05ed390b-a98b-426c-bddb-fc4eab59ee87
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encryption_key
92470F4731518ABFA77DC89068544FB7E7B7C459
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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 app1.exe
Files
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app1.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