Behavioral task
behavioral1
Sample
59b2f69e78dda87f83f15f064a25e40551c62878cebfc66e541f6bd79e67d42d.exe
Resource
win10v2004-20250502-en
Behavioral task
behavioral2
Sample
59b2f69e78dda87f83f15f064a25e40551c62878cebfc66e541f6bd79e67d42d.exe
Resource
win11-20250502-en
General
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Target
59b2f69e78dda87f83f15f064a25e40551c62878cebfc66e541f6bd79e67d42d
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Size
133KB
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MD5
d01f29ca822ea6d0b65d4997aa8252a9
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SHA1
e3800ae952beed650dd328008460d730395d21f7
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SHA256
59b2f69e78dda87f83f15f064a25e40551c62878cebfc66e541f6bd79e67d42d
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SHA512
b2614f72ab9299e3bff94e6a2c8684d8733d4373c67b2d3b254f257109d25044d9eb392478c9efa708b00492f36f51c2faec70a6ab7c5bf334dbb8d845e2a6a7
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SSDEEP
1536:s7ZppApdIIXJUDJUzreQvow2GIIXJUDJUzreQvowe:spWp1reVwDreVwe
Malware Config
Signatures
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Cosmu family
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Detects Cosmu payload 1 IoCs
Cosmu is a worm written in C++.
resource yara_rule sample family_cosmu -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 59b2f69e78dda87f83f15f064a25e40551c62878cebfc66e541f6bd79e67d42d
Files
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59b2f69e78dda87f83f15f064a25e40551c62878cebfc66e541f6bd79e67d42d.exe windows:1 windows x86 arch:x86
8abecba2211e61763c4c9ffcaa13369e
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED
Imports
mfc42
ord2770
ord356
ord2781
ord4058
ord3181
ord2764
ord1980
ord668
ord926
ord924
ord941
ord4129
ord537
ord540
ord6282
ord825
ord6283
ord5683
ord5710
ord858
ord800
ord535
ord859
msvcrt
_adjust_fdiv
__p__commode
__p__fmode
__set_app_type
_except_handler3
_controlfp
__setusermatherr
_initterm
__getmainargs
_acmdln
exit
_XcptFilter
_exit
_beginthread
rand
fgetc
fputc
fwrite
rename
fopen
fseek
fread
fclose
_stat
__CxxFrameHandler
_mbscmp
kernel32
GetCurrentThread
GetCurrentProcess
SetPriorityClass
lstrcatA
lstrcpyA
GetEnvironmentVariableA
GetShortPathNameA
GetModuleFileNameA
GetFileAttributesA
DeleteFileA
SetFileAttributesA
GetSystemDirectoryA
WaitForSingleObject
CreateProcessA
Sleep
GetLogicalDrives
GetModuleHandleA
GetStartupInfoA
SetThreadPriority
user32
LoadIconA
MessageBoxA
shell32
ShellExecuteExA
SHChangeNotify
Sections
Size: 5KB - Virtual size: 8KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
Size: 2KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
Size: 512B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.spack Size: 1024B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE