Behavioral task
behavioral1
Sample
640955e10059eaa253bcb7df6349c607.dll
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
640955e10059eaa253bcb7df6349c607.dll
Resource
win10v2004-20231215-en
General
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Target
640955e10059eaa253bcb7df6349c607
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Size
9KB
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MD5
640955e10059eaa253bcb7df6349c607
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SHA1
b58c465a38c46fa1cab230d006b65ebefacf78eb
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SHA256
e2e4cc827468d0ee58545ad4a3dfff335acb5169f2c3a007110a55bed49abd33
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SHA512
46c0e9833776ce329fa845c703de65e73c333b62a933f56c2d2c0f67056bbce6d3c248777d9c8add72b58f683487993e307f008d8d3d864fc1ecc2e3365a78ab
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SSDEEP
192:gfxAm2XKdOZo9BRyvgQ9jOPHkJojBhOF:gf2NM9GgEjcHj
Malware Config
Extracted
cobaltstrike
http://172.19.52.71:443/AaaZ
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user_agent
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)
Signatures
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Cobaltstrike family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 640955e10059eaa253bcb7df6349c607
Files
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640955e10059eaa253bcb7df6349c607.dll windows:6 windows x86 arch:x86
1683faf5a52cbb1723dff2268f6ebd72
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL
Imports
user32
MessageBoxW
vcruntime140
memset
_except_handler4_common
__std_type_info_destroy_list
api-ms-win-crt-heap-l1-1-0
malloc
api-ms-win-crt-runtime-l1-1-0
_initialize_narrow_environment
_initterm_e
_initterm
_seh_filter_dll
_cexit
_initialize_onexit_table
_execute_onexit_table
_configure_narrow_argv
kernel32
GetCurrentProcessId
IsDebuggerPresent
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
UnhandledExceptionFilter
QueryPerformanceCounter
IsProcessorFeaturePresent
TerminateProcess
GetCurrentProcess
SetUnhandledExceptionFilter
Sections
.text Size: 3KB - Virtual size: 3KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1024B - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 512B - Virtual size: 248B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 324B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ