710fe2f4949de03df1cd0707e2e0eef19ad8122c83130ca8d08238ec943321e3

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23-05-2024 02:34

Target

2024-05-23_8bea09dcbb2ccfa4dc15967ee0a0263d_cryptolocker.exe
Size

63KB
MD5

8bea09dcbb2ccfa4dc15967ee0a0263d
SHA1

a54b08a09b970ba8c10e5ed72d374a9ebf167fa4
SHA256

710fe2f4949de03df1cd0707e2e0eef19ad8122c83130ca8d08238ec943321e3
SHA512

e6227c84aaf4a1372e8bc16c96e089f6b542584e256e8d801dc3bb0c9c75b86fed1c9de148bc960e27ec925bdf1efbf9fe25e09a057470c5e618a6b802d60816
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZnF7H+:btng54SMLr+/AO/kIhfoKMHdac

Score

9^/10

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\gewos.exe	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

Processes:

gewos.exe

pid process

2344 gewos.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-23_8bea09dcbb2ccfa4dc15967ee0a0263d_cryptolocker.exe

pid process

1976 2024-05-23_8bea09dcbb2ccfa4dc15967ee0a0263d_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of UnmapMainImage 2 IoCs

Processes:

2024-05-23_8bea09dcbb2ccfa4dc15967ee0a0263d_cryptolocker.exegewos.exe

pid process

1976 2024-05-23_8bea09dcbb2ccfa4dc15967ee0a0263d_cryptolocker.exe
2344 gewos.exe

pid	process
2344	gewos.exe

pid	process
1976	2024-05-23_8bea09dcbb2ccfa4dc15967ee0a0263d_cryptolocker.exe

pid	process
1976	2024-05-23_8bea09dcbb2ccfa4dc15967ee0a0263d_cryptolocker.exe
2344	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-23_8bea09dcbb2ccfa4dc15967ee0a0263d_cryptolocker.exe

description	pid	process	target process
PID 1976 wrote to memory of 2344	1976	2024-05-23_8bea09dcbb2ccfa4dc15967ee0a0263d_cryptolocker.exe	gewos.exe
PID 1976 wrote to memory of 2344	1976	2024-05-23_8bea09dcbb2ccfa4dc15967ee0a0263d_cryptolocker.exe	gewos.exe
PID 1976 wrote to memory of 2344	1976	2024-05-23_8bea09dcbb2ccfa4dc15967ee0a0263d_cryptolocker.exe	gewos.exe
PID 1976 wrote to memory of 2344	1976	2024-05-23_8bea09dcbb2ccfa4dc15967ee0a0263d_cryptolocker.exe	gewos.exe

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

\Users\Admin\AppData\Local\Temp\gewos.exe
Filesize
63KB

MD5
a885f23ed6115216cc9521a96ebc038a

SHA1
b42c30f3bbf9b08cc97e87b752f9ff42825d6f6a

SHA256
178f924fd5280fadf226efa84f99afc6273e87699a5fa08ca9b09e4802033356

SHA512
66efe4c94077135d23900c001efeaa945afc795e650f7cb576406e27506e45da4d96dd1c12203c31faa9ae526ba33fe1ee502ad4cb4370104d7dd28523ed8bf6

Download Submit
memory/1976-0-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/1976-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1976-8-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2344-23-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download