Static task
static1
Behavioral task
behavioral1
Sample
instnm.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
instnm.exe
Resource
win10v2004-20230220-en
General
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Target
instnm.exe
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Size
7KB
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MD5
0bcc0e824a935c99d007873eae8cb79e
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SHA1
18e0440c0a9dacdbdd9b5d73bdcd4932196d6591
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SHA256
5af8e2a2178e101a3d9c039940a6bafe0cdd68a5d8c4f3819e2e2fde00a47949
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SHA512
ae6ac3861563221129ff5bf0054f5623563b5761a564c791c6ed6dc63f6e96d953621fc3b586ed8624ce1e738b39431d854ccdd0b44997549cd97d58d55920b9
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SSDEEP
96:W5hcXrKDWFh5L7Zt9E9wwAJznnk46jfEW7usHIXuWwn:W5hctBNwAJznk4Q8W0+W
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource instnm.exe
Files
-
instnm.exe.exe windows x86
4fc869954794d883b305948d42db3763
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
msvcrt
_controlfp
_except_handler4_common
?terminate@@YAXXZ
__set_app_type
__p__fmode
__p__commode
__setusermatherr
_amsg_exit
_initterm
exit
_XcptFilter
_exit
_cexit
__wgetmainargs
setupapi
SetupInstallFilesFromInfSectionW
SetupScanFileQueueA
SetupCommitFileQueueA
SetupInstallFromInfSectionW
SetupCloseInfFile
SetupCloseFileQueue
SetupTermDefaultQueueCallback
SetupInitDefaultQueueCallbackEx
SetupOpenFileQueue
SetupOpenAppendInfFileW
SetupOpenInfFileW
SetupDefaultQueueCallbackW
kernel32
UnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
GetSystemTimeAsFileTime
GetCurrentProcessId
GetCurrentThreadId
GetTickCount
QueryPerformanceCounter
GetModuleHandleA
SetUnhandledExceptionFilter
InterlockedCompareExchange
Sleep
InterlockedExchange
Sections
.text Size: 4KB - Virtual size: 3KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 512B - Virtual size: 888B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 412B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ