bfsvb[.]exe | Triage

Sharing

Copy URL Twitter E-mail

General

Target

bfsvb.exe
Size

13.0MB
MD5

38624499acd06b6b9e5b6d13e0a5e853
SHA1

3183278390f47d5fd8500d99fdbac21f1c25b071
SHA256

9b331b44b47422a2ea3b9e9fdc098fdc63b396af68833455234d1bc94a05c74e
SHA512

9ee6134b983750cdb2322b4aa1bdc14d16f165005c5aa5de3b4bdd21fe0c9e8e018880e63539b1654c261dca8c01a4dd6b61ae45eb47308b6d5b6c2fc520c361
SSDEEP

196608:j/YGFVr5Qd1mANIY5dcq8VVFh1+OVU877DYRrR6667sqZQOFsaFeQZBs3ScO0:Vr56uWdchFh13DWRV67yIqicO0

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
bfsvb.exe

Files

bfsvb.exe
.exe windows:6 windows x64 arch:x64

36a542d245daeba73f59d21e3a1390d7

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

kernel32

SetWaitableTimer
GetSystemTimeAsFileTime
HeapAlloc
HeapFree
ExitProcess
GetModuleHandleA
LoadLibraryA
GetProcAddress

user32

ShowWindow

advapi32

AdjustTokenPrivileges

msvcp140

?_Winerror_map@std@@YAHH@Z

ws2_32

WSAStartup

mswsock

AcceptEx

ntdll

RtlLookupFunctionEntry

vcruntime140_1

__CxxFrameHandler4

vcruntime140

_CxxThrowException

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

malloc

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

_register_thread_local_exe_atexit_callback

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

fputc

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

_time64

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

strcmp

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

strtoull

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

_stat64i32

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

_configthreadlocale

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

__setusermatherr

Sections

.text
Size: - Virtual size: 233KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: - Virtual size: 70KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: - Virtual size: 1.3MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.]C?
Size: - Virtual size: 7.4MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.0Wo
Size: 4KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.>ir
Size: 12.9MB - Virtual size: 12.9MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 296B

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

36a542d245daeba73f59d21e3a1390d7

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

msvcp140

ws2_32

mswsock

ntdll

vcruntime140_1

vcruntime140

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

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

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

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

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

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

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

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

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

Sections

.text Size: - Virtual size: 233KB

.rdata Size: - Virtual size: 70KB

.data Size: - Virtual size: 1.3MB

.pdata Size: - Virtual size: 12KB

.]C? Size: - Virtual size: 7.4MB

.0Wo Size: 4KB - Virtual size: 4KB

.>ir Size: 12.9MB - Virtual size: 12.9MB

.reloc Size: 512B - Virtual size: 296B

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

.text
Size: - Virtual size: 233KB

.rdata
Size: - Virtual size: 70KB

.data
Size: - Virtual size: 1.3MB

.pdata
Size: - Virtual size: 12KB

.]C?
Size: - Virtual size: 7.4MB

.0Wo
Size: 4KB - Virtual size: 4KB

.>ir
Size: 12.9MB - Virtual size: 12.9MB

.reloc
Size: 512B - Virtual size: 296B

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