Behavioral task
behavioral1
Sample
c88caddc2a450135e7f7d36d8b9857628b96f97b67d782025b229034d34f9582.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
c88caddc2a450135e7f7d36d8b9857628b96f97b67d782025b229034d34f9582.exe
Resource
win10v2004-20240226-en
General
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Target
c88caddc2a450135e7f7d36d8b9857628b96f97b67d782025b229034d34f9582.exe
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Size
3.1MB
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MD5
c4497b459274cec0b9fd6e3ac6c67aaa
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SHA1
1c8b8e42b8284b6dc2d2741850a9c01c07a5088f
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SHA256
c88caddc2a450135e7f7d36d8b9857628b96f97b67d782025b229034d34f9582
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SHA512
bf64fd7a95dedd703a04cf661b35ebaa343dd7b2e907d1de20d16bcb91259b76ba9f80a817d391487eb5c4f549658ba545673b3b3f26cc45e0a16fecfff01c24
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SSDEEP
49152:Cvguf2NUaNmwzPWlvdaKM7ZxTwW3xbbRYLoGd7THHB72eh2NT:Cv/f2NUaNmwzPWlvdaB7ZxTwW3xQ
Malware Config
Extracted
quasar
1.4.1
50 installs
217.63.234.90:4444
217.63.234.90:1313
127.0.0.1:1313
ef23a66e-d8e1-48c7-a533-50e2b78bea4a
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encryption_key
6B0D9CDFBF22251A89F554E059B7463C8CDE0F0C
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install_name
svchost.exe
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log_directory
Logs50spread
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reconnect_delay
3000
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startup_key
svchost.exe
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subdirectory
SubDir
Signatures
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Detects Windows executables referencing non-Windows User-Agents 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_Binary_References_Browsers -
Detects executables containing common artifacts observed in infostealers 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_GENInfoStealer -
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 c88caddc2a450135e7f7d36d8b9857628b96f97b67d782025b229034d34f9582.exe
Files
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c88caddc2a450135e7f7d36d8b9857628b96f97b67d782025b229034d34f9582.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