medusalocker | medusa[.]zip

General

Target

medusa.zip
Size

231KB
MD5

11bd7fdd74a7d9888136f90a8f90e53e
SHA1

cf08d442ee5aeee4436419403fc847303c1bc287
SHA256

57d084a7879948df5fbab5fb9d6fabe552dcad4ff8b56dff15a4d5f8707ac9a8
SHA512

57687d9a8d7ef8f478922e99a08b61bb6a27cf5bd210717e201f8821c09fc4cd7770dbcddcbb18a6a97377c88396544ff0651434ed74aa699e36c1f8c5ba4b74
SSDEEP

6144:EmzN5qlWmNh+zscQ5Ti0cmST6Db8OACdhOSNd+6:EZElYcQxgDLAkB6

Score

10^/10

Malware Config

Signatures

MedusaLocker payload 1 IoCs

resource	yara_rule
static1/unpack002/out.upx	family_medusalocker

Medusalocker family
medusalocker

UPX packed file 1 IoCs

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

upx

resource	yara_rule
static1/unpack001/1bc0575b3fc6486cb2510dac1ac6ae4889b94a955d3eade53d3ba3a92d133281.exe	upx

Unsigned PE 2 IoCs

Checks for missing Authenticode signature.

resource
unpack001/1bc0575b3fc6486cb2510dac1ac6ae4889b94a955d3eade53d3ba3a92d133281.exe
unpack002/out.upx

Files

medusa.zip
.zip

Password: infected
1bc0575b3fc6486cb2510dac1ac6ae4889b94a955d3eade53d3ba3a92d133281.exe
.exe windows:6 windows 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

Sections

UPX0
Size: - Virtual size: 468KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 233KB - Virtual size: 236KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1KB - Virtual size: 4KB

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

Sections

.text
Size: 459KB - Virtual size: 458KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 14KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 512B - Virtual size: 480B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 23KB - Virtual size: 22KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Password: infected

Headers

DLL Characteristics

File Characteristics

Sections

UPX0 Size: - Virtual size: 468KB

UPX1 Size: 233KB - Virtual size: 236KB

.rsrc Size: 1KB - Virtual size: 4KB

Headers

DLL Characteristics

File Characteristics

Sections

.text Size: 459KB - Virtual size: 458KB

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

.data Size: 14KB - Virtual size: 18KB

.rsrc Size: 512B - Virtual size: 480B

.reloc Size: 23KB - Virtual size: 22KB

UPX0
Size: - Virtual size: 468KB

UPX1
Size: 233KB - Virtual size: 236KB

.rsrc
Size: 1KB - Virtual size: 4KB

.text
Size: 459KB - Virtual size: 458KB

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

.data
Size: 14KB - Virtual size: 18KB

.rsrc
Size: 512B - Virtual size: 480B

.reloc
Size: 23KB - Virtual size: 22KB