aa[.]xll | Triage

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General

Target

aa.xll
Size

50KB
MD5

8866d0e530cb613fde59c5476ea6c331
SHA1

e77beeb201303b739a9c4536514e48adc2118900
SHA256

98c59262ad396b4da5b0a3e82f819923f860e974f687c4fff9b852f25a56c50f
SHA512

73d157aec3d94767b1f5233617d148cb440dca8ba6381c2979f4c5265273294fefad380afa9b401df80fd9661eeae643fd23448c71a66e7ceb2e796a2a4156ea
SSDEEP

1536:9lnq2U5JsS6Nh5wFXscKjrtN/5zqGyiNwmHWR03aY:9c9HQNh5wFXscKXHRzaiNnVqY

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
aa.xll

Files

aa.xll
.xll windows:4 windows x64

eb3f1099640d7d708a3042408447c005

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED
IMAGE_FILE_DLL

Imports

kernel32

CopyFileW
DeleteCriticalSection
EnterCriticalSection
GetLastError
InitializeCriticalSection
IsDBCSLeadByteEx
LeaveCriticalSection
MultiByteToWideChar
Sleep
TlsGetValue
VirtualProtect
VirtualQuery
WinExec

msvcrt

___lc_codepage_func
___mb_cur_max_func
__iob_func
_amsg_exit
_errno
_initterm
_lock
_unlock
abort
calloc
free
fwrite
getc
islower
isspace
isupper
isxdigit
localeconv
malloc
memcpy
memset
realloc
strcpy
strlen
strncmp
strtol
strtoul
tolower
ungetc
vfprintf

user32

MessageBoxA

Exports

Exports

xlAutoOpen
xor_decrypt

Sections

.text
Size: 39KB - Virtual size: 38KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 128B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.xdata
Size: 1024B - Virtual size: 996B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 2KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.edata
Size: 512B - Virtual size: 96B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.idata
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 88B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 512B - Virtual size: 96B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

eb3f1099640d7d708a3042408447c005

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

msvcrt

user32

Exports

Exports

Sections

.text Size: 39KB - Virtual size: 38KB

.data Size: 512B - Virtual size: 128B

.rdata Size: 3KB - Virtual size: 2KB

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

.xdata Size: 1024B - Virtual size: 996B

.bss Size: - Virtual size: 2KB

.edata Size: 512B - Virtual size: 96B

.idata Size: 2KB - Virtual size: 1KB

.CRT Size: 512B - Virtual size: 88B

.tls Size: 512B - Virtual size: 16B

.reloc Size: 512B - Virtual size: 96B

.text
Size: 39KB - Virtual size: 38KB

.data
Size: 512B - Virtual size: 128B

.rdata
Size: 3KB - Virtual size: 2KB

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

.xdata
Size: 1024B - Virtual size: 996B

.bss
Size: - Virtual size: 2KB

.edata
Size: 512B - Virtual size: 96B

.idata
Size: 2KB - Virtual size: 1KB

.CRT
Size: 512B - Virtual size: 88B

.tls
Size: 512B - Virtual size: 16B

.reloc
Size: 512B - Virtual size: 96B