Behavioral task
behavioral1
Sample
fontdrvhost.exe
Resource
win7-20230712-en
General
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Target
fontdrvhost.exe
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Size
3.1MB
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MD5
3aaaf4be968f7846cc3697959a6ba5ec
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SHA1
66c6de49521762033bc0f08d2fc2a18c2c678197
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SHA256
29f9003753e24d20e597b7c71661dadd221b011c9f14531e25e0bf1c55145123
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SHA512
6626e7e982e65c02fac4b9ae40f5f57e7bc4e79aaa08c9aa12d4b42f1fee0ca6449608972dbe19d634fe48cd8835f8fa5456780f62da143614b28a1f18489ecf
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SSDEEP
49152:fvve821/aQWl8P0lSk3aKA3Z+new/6BxyLoGd0qQTHHB72eh2NT:fvm821/aQWl8P0lSk3DA3Z+n5/5E
Malware Config
Extracted
quasar
1.4.1
My VM
server1.trustedvpnservices.com:13832
higradevpn.xyz:13832
071e2576-e94a-492e-8303-baae1cb4641c
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encryption_key
402F6F1B2F63357285F585A5880FBC2C0F468F55
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install_name
fontdrvhost.exe
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log_directory
CrashLogs
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reconnect_delay
3000
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startup_key
Usermode Font Driver Host
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subdirectory
C:\Windows\System32
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 fontdrvhost.exe
Files
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fontdrvhost.exe.exe 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: 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