umbral | JJSploit[.]exe | Triage

Sharing

General

Target

JJSploit.exe
Size

6.6MB
MD5

f29fd0bb7218e3cf63ab6040be0a1698
SHA1

c078e4888d6e1cf6c75a4141d51a1d375c2f71c8
SHA256

ccbcc6269218d292a06db3d9896dc621598a76794881ffbeb6f093d8b54e1c43
SHA512

b68185e83baca3f8779e085fed57a0324fee7528139c4afa245900f206707b645f631cb08d8a2cc3ea6b75a65d0e5ac76c250897e28df2c6e7c4724f7790f40d
SSDEEP

196608:1dNnRdvjsTOvHK19gO8xbecifaCI1L5N1JTLX46:z1RSavI9sbf8vKf5

Score

10^/10

umbral

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
sample	family_umbral

Umbral family
umbral

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
JJSploit.exe

Files

JJSploit.exe
.exe windows:4 windows x86 arch:x86

Headers

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI

Sections

CODE
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

DATA
Size: 512B - Virtual size: 124B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

BSS
Size: - Virtual size: 1KB

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 1024B - Virtual size: 770B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: - Virtual size: 4B

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 456B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 6.6MB - Virtual size: 6.6MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ