putty[.]exe | Triage

General

Target

putty.exe
Size

654KB
MD5

9f610e3ff1bcaf149f0c9f2ebe743afc
SHA1

c45c936d4dc8181a7daa00b6cee814f415d5c8f4
SHA256

b1cdd9ccc174a5b9cd9bed35bbec44d0348d0797ccffa482885685e7785e4c10
SHA512

acb6b3dfa263f001a917e900ec3711ae0491946ba03107ed6871810d959d57aa23c208140f535b41cdae039879f449350fd980ab0510f32942307796c3257910
SSDEEP

12288:gQIGHk1all1uPv/QjX/XEDw2D8/ZoUFS9T4cDwusoDzge3:gQfhj1uX/Qb/XEc2oZ18J4owutDz3

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
putty.exe
unpack001/out.upx

Files

putty.exe
.exe windows x86

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED

Sections

UPX0
Size: - Virtual size: 1.2MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 626KB - Virtual size: 628KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 27KB - Virtual size: 28KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
out.upx
.exe windows x86

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED

Sections

.text
Size: 1.1MB - Virtual size: 1.1MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 9KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 182KB - Virtual size: 181KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.eh_fram
Size: 171KB - Virtual size: 171KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 84KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 13KB - Virtual size: 13KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 24B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 32B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 192KB - Virtual size: 192KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Resubmissions

Sharing

General

Malware Config

Signatures

Files

Headers

File Characteristics

Sections

UPX0 Size: - Virtual size: 1.2MB

UPX1 Size: 626KB - Virtual size: 628KB

.rsrc Size: 27KB - Virtual size: 28KB

Headers

File Characteristics

Sections

.text Size: 1.1MB - Virtual size: 1.1MB

.data Size: 9KB - Virtual size: 8KB

.rdata Size: 182KB - Virtual size: 181KB

.eh_fram Size: 171KB - Virtual size: 171KB

.bss Size: - Virtual size: 84KB

.idata Size: 13KB - Virtual size: 13KB

.CRT Size: 512B - Virtual size: 24B

.tls Size: 512B - Virtual size: 32B

.rsrc Size: 192KB - Virtual size: 192KB

UPX0
Size: - Virtual size: 1.2MB

UPX1
Size: 626KB - Virtual size: 628KB

.rsrc
Size: 27KB - Virtual size: 28KB

.text
Size: 1.1MB - Virtual size: 1.1MB

.data
Size: 9KB - Virtual size: 8KB

.rdata
Size: 182KB - Virtual size: 181KB

.eh_fram
Size: 171KB - Virtual size: 171KB

.bss
Size: - Virtual size: 84KB

.idata
Size: 13KB - Virtual size: 13KB

.CRT
Size: 512B - Virtual size: 24B

.tls
Size: 512B - Virtual size: 32B

.rsrc
Size: 192KB - Virtual size: 192KB