Cryptor[.]exe | Triage

General

Target

Cryptor.exe
Size

2.9MB
MD5

4ca40d9d318d97d68fcb518e2c4fe07a
SHA1

5fc2e90b7bc1aa4d00c2dc9e0064056b3956e425
SHA256

7f988e3a23998e57784262affa784e9cc63ee9494ece3bf5274a7433f4ffab46
SHA512

bc3133b4c1da31037eaa2313e427161e7402be8e305e744bec00d294e6c7c95d5abba1bf45dbcf861935224d9213c190392443ca7447e0c6c71e512eb5dee7f2
SSDEEP

49152:yG3XVai+IaMqPPgeT+B2GDsp8aTvMf1p8LEh3ZDJgD3WIPvozJO7caDV2aK:yqXVD7deT+spnU80JDJi3WgQtAVDcaK

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
sample	upx

Unsigned PE 2 IoCs

Checks for missing Authenticode signature.

resource
Cryptor.exe
unpack001/out.upx

Files

Cryptor.exe
.exe windows:6 windows x64 arch:x64

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

Sections

UPX0
Size: - Virtual size: 2.4MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 2.9MB - Virtual size: 2.9MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX2
Size: 1KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
out.upx
.exe windows:6 windows x64 arch:x64

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

Sections

.text
Size: 3.7MB - Virtual size: 3.7MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 1.4MB - Virtual size: 1.4MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 24KB - Virtual size: 27KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 82KB - Virtual size: 82KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 348B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 34KB - Virtual size: 33KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Headers

DLL Characteristics

File Characteristics

Sections

UPX0 Size: - Virtual size: 2.4MB

UPX1 Size: 2.9MB - Virtual size: 2.9MB

UPX2 Size: 1KB - Virtual size: 4KB

Headers

DLL Characteristics

File Characteristics

Sections

.text Size: 3.7MB - Virtual size: 3.7MB

.rdata Size: 1.4MB - Virtual size: 1.4MB

.data Size: 24KB - Virtual size: 27KB

.pdata Size: 82KB - Virtual size: 82KB

_RDATA Size: 512B - Virtual size: 348B

.reloc Size: 34KB - Virtual size: 33KB

UPX0
Size: - Virtual size: 2.4MB

UPX1
Size: 2.9MB - Virtual size: 2.9MB

UPX2
Size: 1KB - Virtual size: 4KB

.text
Size: 3.7MB - Virtual size: 3.7MB

.rdata
Size: 1.4MB - Virtual size: 1.4MB

.data
Size: 24KB - Virtual size: 27KB

.pdata
Size: 82KB - Virtual size: 82KB

_RDATA
Size: 512B - Virtual size: 348B

.reloc
Size: 34KB - Virtual size: 33KB