42c884f1595cdf0b00760519c9a63c404f628f8e773e3173f2a47e4393452b1a

Analysis

max time kernel
120s
max time network
133s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
11/01/2024, 05:59

Target

2024-01-10_fda3b583f9ce8e11896b603a1fbd2b6e_ryuk.exe
Size

1.7MB
MD5

fda3b583f9ce8e11896b603a1fbd2b6e
SHA1

8186d3d9599f9fab538ce25b0e86d4d15ab2f64c
SHA256

42c884f1595cdf0b00760519c9a63c404f628f8e773e3173f2a47e4393452b1a
SHA512

80fa14a42897f9120fc315743d8c2ece59577f65ea4a38bce7b015b4997213b0f71e23c76ab6211216a3cfbd8a81c38d3bf3172ca80c6359e32e3dd04f64f329
SSDEEP

49152:T4f65cTlG8mMHcn3obb0P8/snji6attJM:TSG8mM8wEnW6at

Score

5^/10

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\alg.exe	2024-01-10_fda3b583f9ce8e11896b603a1fbd2b6e_ryuk.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	2152	2024-01-10_fda3b583f9ce8e11896b603a1fbd2b6e_ryuk.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 2404	2152	2024-01-10_fda3b583f9ce8e11896b603a1fbd2b6e_ryuk.exe	28
PID 2152 wrote to memory of 2404	2152	2024-01-10_fda3b583f9ce8e11896b603a1fbd2b6e_ryuk.exe	28
PID 2152 wrote to memory of 2404	2152	2024-01-10_fda3b583f9ce8e11896b603a1fbd2b6e_ryuk.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-10_fda3b583f9ce8e11896b603a1fbd2b6e_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-10_fda3b583f9ce8e11896b603a1fbd2b6e_ryuk.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2152 -s 332
  2⤵
  PID:2404

memory/2152-0-0x00000000003D0000-0x0000000000430000-memory.dmp

Filesize
384KB

Download
memory/2152-2-0x0000000140000000-0x00000001401CF000-memory.dmp

Filesize
1.8MB

Download
memory/2152-8-0x00000000003D0000-0x0000000000430000-memory.dmp

Filesize
384KB

Download
memory/2152-12-0x0000000140000000-0x00000001401CF000-memory.dmp

Filesize
1.8MB

Download