Static task
static1
Behavioral task
behavioral1
Sample
v5 yssmrn_/Requirements.bat
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
v5 yssmrn_/Requirements.bat
Resource
win10v2004-20240508-en
Behavioral task
behavioral3
Sample
v5 yssmrn_/v55.exe
Resource
win7-20240215-en
Behavioral task
behavioral4
Sample
v5 yssmrn_/v55.exe
Resource
win10v2004-20240426-en
General
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Target
v5 yssmrn_.zip
-
Size
12.2MB
-
MD5
c48d9ff09825403a0e173a79dd02be8b
-
SHA1
d7f76992840a22e90181f9dbc74e780976ae8370
-
SHA256
1461efb74e4b5d0fa92d9af956faf5f2b6255e23df217f8cfea9e292f3e381f4
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SHA512
1a8e089f57fa9a97147c9b4e1f3f80170c05502906853c10e2a2293e68e6168da3575db3d54ff78c78962a8ebab0a830dc6658666530f0b4c7c63f9afe3f3bba
-
SSDEEP
393216:wYvQv0n0p5eIkD+CpHKyJJHcAqEXua29ZdCh:Hv3n0mIkD+EvJ8pZO
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/v5 yssmrn_/v55.exe
Files
-
v5 yssmrn_.zip.zip
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v5 yssmrn_/Requirements.bat
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v5 yssmrn_/v55.exe.exe windows:4 windows x86 arch:x86
a9c887a4f18a3fede2cc29ceea138ed3
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
msvcrt
malloc
memset
strcmp
strcpy
getenv
sprintf
fopen
fwrite
fclose
__argc
__argv
_environ
_XcptFilter
__set_app_type
_controlfp
__getmainargs
exit
shell32
ShellExecuteA
kernel32
SetUnhandledExceptionFilter
Sections
.text Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 12.3MB - Virtual size: 12.3MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.bss Size: - Virtual size: 4B
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1024B - Virtual size: 776B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ