nightflow_loader[.]exe

Sharing

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General

Target

nightflow_loader.exe
Size

5.4MB
MD5

7a0e8517e502927028e2589fa2496c4c
SHA1

7475d68fa4ed58a344f6549906ce972928d7fd85
SHA256

c77dd2f1a355ac4e578fe951036882b59431628a5d0fdc7740b5f764499f8cb5
SHA512

bd71c2cd74aa8101eeb38d95dd491d886c229d5d618c85eef94265d7c7f0b46fbcc542723462046529d48ffe9caa54ce5bbec71030b99acd96d69d84eb132af3
SSDEEP

98304:EsKeSA7GensgbBiQLnAV9QIhcB8nHcV2CuKF4yGZNBBu6SjecaOBwdGIWQrBAY:gidAV9THCJ4yGZN/u3jegBwdGIT7

Score

7^/10

vmprotect

Malware Config

Signatures

VMProtect packed file 1 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
sample	vmprotect

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
nightflow_loader.exe

Files

nightflow_loader.exe
.exe windows:6 windows x86 arch:x86

17d2574d30a75e6849d53765f7617cb3

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

kernel32

GetExitCodeProcess
VirtualQuery
LocalAlloc
LocalFree
GetModuleFileNameW
GetProcessAffinityMask
SetProcessAffinityMask
SetThreadAffinityMask
Sleep
ExitProcess
FreeLibrary
LoadLibraryA
GetModuleHandleA
GetProcAddress

advapi32

AdjustTokenPrivileges

msvcp140

?_Xlength_error@std@@YAXPBD@Z

wininet

DeleteUrlCacheEntryA

urlmon

URLDownloadToFileA

ws2_32

closesocket

vcruntime140

memmove

api-ms-win-crt-stdio-l1-1-0

_get_stream_buffer_pointers

api-ms-win-crt-heap-l1-1-0

malloc

api-ms-win-crt-runtime-l1-1-0

_register_onexit_function

api-ms-win-crt-locale-l1-1-0

setlocale

api-ms-win-crt-math-l1-1-0

_dclass

api-ms-win-crt-convert-l1-1-0

strtoll

api-ms-win-crt-filesystem-l1-1-0

_lock_file

wtsapi32

WTSSendMessageW

user32

GetProcessWindowStation
GetProcessWindowStation
GetUserObjectInformationW

Sections

.text
Size: - Virtual size: 140KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: - Virtual size: 28KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.vmp0
Size: - Virtual size: 3.2MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.vmp1
Size: 5.4MB - Virtual size: 5.4MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.reloc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 480B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

17d2574d30a75e6849d53765f7617cb3

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

msvcp140

wininet

urlmon

ws2_32

vcruntime140

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-heap-l1-1-0

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-locale-l1-1-0

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-convert-l1-1-0

api-ms-win-crt-filesystem-l1-1-0

wtsapi32

user32

Sections

.text Size: - Virtual size: 140KB

.rdata Size: - Virtual size: 28KB

.data Size: - Virtual size: 10KB

.vmp0 Size: - Virtual size: 3.2MB

.vmp1 Size: 5.4MB - Virtual size: 5.4MB

.reloc Size: 1KB - Virtual size: 1KB

.rsrc Size: 512B - Virtual size: 480B

.text
Size: - Virtual size: 140KB

.rdata
Size: - Virtual size: 28KB

.data
Size: - Virtual size: 10KB

.vmp0
Size: - Virtual size: 3.2MB

.vmp1
Size: 5.4MB - Virtual size: 5.4MB

.reloc
Size: 1KB - Virtual size: 1KB

.rsrc
Size: 512B - Virtual size: 480B