dcrat | ymna[.]exe | Triage

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General

Target

ymna.exe
Size

1.5MB
MD5

25da06e98e14b2a8cbd39e8e7aba3fad
SHA1

1900dd1a88cf634e70df31ca8ba55e98169a1961
SHA256

7d9ec2e09c8559b1d695569da5f16b9a6edd54c38526b91d458ca5c43c401761
SHA512

8df2b109858cf37e012df3cc02f3c00a3ae0148c74cee34feb5be14ef32a36e720336c1af183098ba86ba14f3f1b3117ebd88cb0ed0975037ba6b96b10931c7f
SSDEEP

24576:EeaMajUi+6C+mDjn7gbkFaSH7Wu4mIWGE1Sy/fBEXTHhaTEEER71RM4I13:Eeaj9bHmMbkBHVdGE1Sy/ujhaIh+1

Score

10^/10

rat dcrat

Malware Config

Signatures

DCRat payload 1 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

resource	yara_rule
sample	dcrat

Dcrat family
dcrat

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
ymna.exe

Files

ymna.exe
.exe windows:4 windows x86 arch:x86

f34d5f2d4577ed6d9ceec516c1f5a744

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

Imports

mscoree

_CorExeMain

Sections

.text
Size: 1.5MB - Virtual size: 1.5MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.sdata
Size: 12KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1024B - Virtual size: 912B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ