fscan[.]exe | Triage

General

Target

fscan.exe
Size

4.8MB
MD5

b0ced233b1b196193b8d7cdf713eb1c6
SHA1

2016202cfd54c6a7917700da8878ff1dc904c470
SHA256

1cdefe303cd68392e5413e9c004a7615d7e2f860626b5f2a1b9d87da281eea28
SHA512

545799c6c90933386e6a294ddd03360e27082019b0ee55aad82cb62d1594a09f91fa6c81a384d536c5da1e5e91065b80cd5e2cf1b497c75b1797d21b10cf13aa
SSDEEP

98304:uFKZ+goJR6KTYGE/dAn1Tpzf4Or6h0ZroXVAp6+zYM1uGzSEuzCM:uEZ+7/n190u6yGF8zrjzS

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
fscan.exe
unpack001/out.upx

Files

fscan.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
IMAGE_FILE_DEBUG_STRIPPED

Sections

UPX0
Size: - Virtual size: 13.2MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 4.8MB - Virtual size: 4.8MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 15KB - Virtual size: 16KB

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
IMAGE_FILE_DEBUG_STRIPPED

Sections

.text
Size: 6.9MB - Virtual size: 6.9MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 9.3MB - Virtual size: 9.3MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1.0MB - Virtual size: 1.3MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 301KB - Virtual size: 300KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.symtab
Size: 512B - Virtual size: 4B

IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.rsrc
Size: 15KB - Virtual size: 14KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Headers

DLL Characteristics

File Characteristics

Sections

UPX0 Size: - Virtual size: 13.2MB

UPX1 Size: 4.8MB - Virtual size: 4.8MB

.rsrc Size: 15KB - Virtual size: 16KB

Headers

DLL Characteristics

File Characteristics

Sections

.text Size: 6.9MB - Virtual size: 6.9MB

.rdata Size: 9.3MB - Virtual size: 9.3MB

.data Size: 1.0MB - Virtual size: 1.3MB

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

.reloc Size: 301KB - Virtual size: 300KB

.symtab Size: 512B - Virtual size: 4B

.rsrc Size: 15KB - Virtual size: 14KB

UPX0
Size: - Virtual size: 13.2MB

UPX1
Size: 4.8MB - Virtual size: 4.8MB

.rsrc
Size: 15KB - Virtual size: 16KB

.text
Size: 6.9MB - Virtual size: 6.9MB

.rdata
Size: 9.3MB - Virtual size: 9.3MB

.data
Size: 1.0MB - Virtual size: 1.3MB

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

.reloc
Size: 301KB - Virtual size: 300KB

.symtab
Size: 512B - Virtual size: 4B

.rsrc
Size: 15KB - Virtual size: 14KB