kmud[.]exe | Triage

General

Target

kmud.exe
Size

587KB
MD5

2994e898b516b040819e721e0e782631
SHA1

a34db81bd84bde0ff30925beeba950cddc15078c
SHA256

bbf53cdaff4cefe9d818a7696cd1ee614e305709d044ac31b1bab4833948448d
SHA512

7a9e28b6f56266fa2fda6f821adc4b748dc8107c82ca446be684f26e2f7c961f1da850a4aa5b7cbb608c63d3a3abdd0bd7f6b4dcabcd20a63b91f414d1b79320
SSDEEP

12288:Mq/NQvatjZDX6ngP7R8gkeGr8xxyckmDmkvuG8RIRpk2Jn0qw9:Mq/DDXMgP7ZktrEx4mDmkvP8RipkKxw9

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
kmud.exe
unpack001/out.upx

Files

kmud.exe
.exe windows:6 windows x86 arch:x86

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED

Sections

UPX0
Size: - Virtual size: 956KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 586KB - Virtual size: 588KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX2
Size: 512B - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
out.upx
.exe windows:6 windows x86 arch:x86

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED

Sections

.text
Size: 633KB - Virtual size: 632KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 645KB - Virtual size: 645KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 70KB - Virtual size: 166KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 1024B - Virtual size: 1020B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 51KB - Virtual size: 51KB

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

Sharing

General

Malware Config

Signatures

Files

Headers

DLL Characteristics

File Characteristics

Sections

UPX0 Size: - Virtual size: 956KB

UPX1 Size: 586KB - Virtual size: 588KB

UPX2 Size: 512B - Virtual size: 4KB

Headers

DLL Characteristics

File Characteristics

Sections

.text Size: 633KB - Virtual size: 632KB

.rdata Size: 645KB - Virtual size: 645KB

.data Size: 70KB - Virtual size: 166KB

.idata Size: 1024B - Virtual size: 1020B

.reloc Size: 51KB - Virtual size: 51KB

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

UPX0
Size: - Virtual size: 956KB

UPX1
Size: 586KB - Virtual size: 588KB

UPX2
Size: 512B - Virtual size: 4KB

.text
Size: 633KB - Virtual size: 632KB

.rdata
Size: 645KB - Virtual size: 645KB

.data
Size: 70KB - Virtual size: 166KB

.idata
Size: 1024B - Virtual size: 1020B

.reloc
Size: 51KB - Virtual size: 51KB

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