Behavioral task
behavioral1
Sample
dontopenit.exe
Resource
win7-20240708-en
General
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Target
dontopenit.exe
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Size
3.1MB
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MD5
7fd77d009a68f6f02a75522b7e4a6313
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SHA1
a9b761e5fa44b73e1c25c20c841c83218d101263
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SHA256
83350c38bd734b17254e270457391255342bee4c92ddab004f6f596046d16f99
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SHA512
536af6029f0abda5cb9ac8091da76c06f15523a10c0cf62760e10afc8baa6ea87189f3d2a3b2b60e730143f300fafc7d19b840ae699e2a288856c389095670f0
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SSDEEP
49152:evOI22SsaNYfdPBldt698dBcjHbldoVbR7LoGdyCpTHHB72eh2NT:evj22SsaNYfdPBldt6+dBcjHbro7iC
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.0.110:4782
9ae8867e-1e6e-4f06-8e37-de9b7ca8fb38
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encryption_key
10D13D0E0DCD8176DAECB5FC539327CF4C7855AA
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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
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource dontopenit.exe
Files
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dontopenit.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