Static task
static1
Behavioral task
behavioral1
Sample
2024-01-23_a90bb481fd431235397239a3cdc3cd0e_ryuk.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-01-23_a90bb481fd431235397239a3cdc3cd0e_ryuk.exe
Resource
win10v2004-20231215-en
General
-
Target
2024-01-23_a90bb481fd431235397239a3cdc3cd0e_ryuk
-
Size
3.4MB
-
MD5
a90bb481fd431235397239a3cdc3cd0e
-
SHA1
2d38554d7048f34fe6fbd501b794b90dc2da993e
-
SHA256
dab9ddb713b323155dad9ec3b9bd25ff18f6076a1e936ab10a6e43875b8c77c4
-
SHA512
bfaec490fc33a919d4383f356d6a9eac9710e7aa23947b409fbc7b22c271878b44be98da416129992e1bf502eddcd143311246e79d2ac52504564dcc8bde67e2
-
SSDEEP
49152:gyQa1xXB3/5Z8xEl7bDjKAGQYoRBYGkxkkaF+jzO/72umgFrcVEcH2UcChdVF4sm:zVMGkCmjQ7fmgFrg3LcQ5kVkcP
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-01-23_a90bb481fd431235397239a3cdc3cd0e_ryuk
Files
-
2024-01-23_a90bb481fd431235397239a3cdc3cd0e_ryuk.exe windows:5 windows x64 arch:x64
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Sections
.text Size: 2.9MB - Virtual size: 2.9MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 542KB - Virtual size: 542KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 72KB - Virtual size: 133KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 98KB - Virtual size: 98KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.00cfg Size: 512B - Virtual size: 48B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gxfg Size: 12KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.retplne Size: 512B - Virtual size: 172B
.tls Size: 1024B - Virtual size: 585B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
CPADinfo Size: 512B - Virtual size: 56B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
LZMADEC Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 348B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 431KB - Virtual size: 430KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 14KB - Virtual size: 13KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ