General
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Target
fpsFIX.exe
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Size
534KB
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MD5
68e20c59e6398f9fe522cc509d440698
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SHA1
5259db943f684f654c66ca277b28c410877494ad
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SHA256
6542a4adb925c38ae9fd6ddd0d5f838ac60b90e2db1e71ed71916fd6a988feb6
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SHA512
c25860340c9fd2b60a61490837febbe87d7912487cf6fbed0d31bd943c561767302be89c0309bc6e19df391e25adff5c4f6186a1b7f7fd181732c95da9a1ad09
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SSDEEP
6144:N8fGtiZAjx7ZgCUODKULTMMkbKGofLPRU9BZIbHtZLLLK1hI8MjXOZ3y7z2Qnp3Q:yexVgCUU5/MMdKB0Z/G1hyW3ApRa
Malware Config
Extracted
quasar
2.1.0.0
Office04
127.0.0.1:4782
4.tcp.us-cal-1.ngrok.io:12688
VNM_MUTEX_c2q7y2ayYutZ2XaYe7
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encryption_key
JuBNDSQCyglnSfq0cvJE
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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
Venom Client Startup
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subdirectory
SubDir
Signatures
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Contains code to disable Windows Defender 1 IoCs
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
Processes:
resource yara_rule sample disable_win_def -
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 fpsFIX.exe
Files
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fpsFIX.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: 531KB - Virtual size: 531KB
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