Static task
static1
Behavioral task
behavioral1
Sample
2024-08-24_e8ac58732aba5b4787ce103dbdc4cfc9_ryuk.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-08-24_e8ac58732aba5b4787ce103dbdc4cfc9_ryuk.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-24_e8ac58732aba5b4787ce103dbdc4cfc9_ryuk
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Size
16.4MB
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MD5
e8ac58732aba5b4787ce103dbdc4cfc9
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SHA1
66920821fe6ceac18c3642c8ee05c785eec28238
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SHA256
5bb1cc73c81c49084033e64a085b988dc9ac9230b71b3e055102e3339e2bb246
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SHA512
526d306b12b630d2bc90c2c9d5edf03a7dd414343f06c53a669b4cccb0c18c49f26dc1c02c2e057f852c2402dc8434d4696c1a81ba969a6bd386d23ccc5779ae
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SSDEEP
196608:9ZKC3hQvQOrdRgyRpH/729ensfbigPj/W7ROTK9oneM3qbMpyimxTERW/tr:9oiQvQOhayT+2sfWgr/u39sYgwiWEwt
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-08-24_e8ac58732aba5b4787ce103dbdc4cfc9_ryuk
Files
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2024-08-24_e8ac58732aba5b4787ce103dbdc4cfc9_ryuk.exe windows:6 windows x64 arch:x64
7f5bb181db3c1ca0487e6d552a61ecd8
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
user32
ClientToScreen
kernel32
AcquireSRWLockExclusive
shell32
CommandLineToArgvW
ole32
CoCreateInstance
d3d9
Direct3DCreate9
d3dx9_43
D3DXCreateTextureFromFileInMemoryEx
advapi32
DeregisterEventSource
gdi32
GetDeviceCaps
imm32
ImmGetContext
ws2_32
WSACleanup
crypt32
CertCloseStore
bcrypt
BCryptGenRandom
Sections
.text Size: 3.5MB - Virtual size: 3.5MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 941KB - Virtual size: 940KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 2.3MB - Virtual size: 2.4MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 126KB - Virtual size: 125KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.00cfg Size: 512B - Virtual size: 56B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gxfg Size: 12KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.tls Size: 512B - Virtual size: 9B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
_RDATA Size: 512B - Virtual size: 500B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.su6 Size: 4.4MB - Virtual size: 4.4MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.lC\ Size: 512B - Virtual size: 240B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.J;K Size: 4.9MB - Virtual size: 4.9MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 103KB - Virtual size: 102KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 30KB - Virtual size: 29KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ