Behavioral task
behavioral1
Sample
svchost.exe
Resource
win10v2004-20240508-en
General
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Target
svchost.exe
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Size
409KB
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MD5
2ec276b90d08cd1839674b810a14d1a3
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SHA1
81a073c818361afe557ce29d2784ef90308cadc3
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SHA256
59ea77def3bfcd5b9720dbd4f67ab6cd1063f675c2f98232a2d390364f20fff9
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SHA512
4d6dfb4670e842310a03a22d109a9fb36a3c5b36173d9666166c772113fe2dab3eaff4c936868a3eff5be8ae61c219e7fb31cc0c7d26888311091ac14874b7ae
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SSDEEP
12288:UpsD64e1Mv3/m7bQoXFU7voBN/K/hn24i:ksG4kMazX0ofK6
Malware Config
Extracted
quasar
3.1.5
SeroXen | v3.1.5 |
runderscore00-25501.portmap.host:25501
$Sxr-jy6vh8CtEJL5ceZuIb
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encryption_key
4KS4bVha9aVJ69uULflW
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install_name
$sxr-powershell.exe
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log_directory
$sxr-Logs
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reconnect_delay
3000
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startup_key
Powershell
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subdirectory
$sxr-seroxen2
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 svchost.exe
Files
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svchost.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
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: 405KB - Virtual size: 405KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - 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