b7c6b1ed919b61fa365f29a88b6607e3411252b9a3c979b6749a7144bf2b466d

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/03/2024, 05:44

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General

Target

2024-03-08_4bd9be1d5f9dadfe7e8de144c40a60ec_cryptolocker.exe
Size

61KB
MD5

4bd9be1d5f9dadfe7e8de144c40a60ec
SHA1

3c5b60a612fdd9778c0b438041c807ca4399a712
SHA256

b7c6b1ed919b61fa365f29a88b6607e3411252b9a3c979b6749a7144bf2b466d
SHA512

a64fce085762eb3bc2dd368fc52ed63c618311299ad460050678b17f8fbfb8718e900ad971d13f216a2a65ce2f2bfe7a99f9dbb159740048684c68c6ac83976a
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHz1:btng54SMLr+/AO/kIhfoKMHdA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001224f-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3056	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1652	2024-03-08_4bd9be1d5f9dadfe7e8de144c40a60ec_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

pid	Process
1652	2024-03-08_4bd9be1d5f9dadfe7e8de144c40a60ec_cryptolocker.exe
3056	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1652 wrote to memory of 3056	1652	2024-03-08_4bd9be1d5f9dadfe7e8de144c40a60ec_cryptolocker.exe	28
PID 1652 wrote to memory of 3056	1652	2024-03-08_4bd9be1d5f9dadfe7e8de144c40a60ec_cryptolocker.exe	28
PID 1652 wrote to memory of 3056	1652	2024-03-08_4bd9be1d5f9dadfe7e8de144c40a60ec_cryptolocker.exe	28
PID 1652 wrote to memory of 3056	1652	2024-03-08_4bd9be1d5f9dadfe7e8de144c40a60ec_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-08_4bd9be1d5f9dadfe7e8de144c40a60ec_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_4bd9be1d5f9dadfe7e8de144c40a60ec_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1652
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:3056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
61KB

MD5
49b50377185865d8668a2d895560ad19

SHA1
082d2a5f4f6c9342ad83b8ac720ded80a82501cb

SHA256
a9088b23e22e9ad967a975be84eb733db6e5c6c9a46c390054f847ddfb3cf7b9

SHA512
8a91a17cf1fef0067084d22d08e98b14765a7d19dfbd075e464b17a7da33e2111533350a2cdf000c743349bdb2dd4cce4e4d03f096493d34320cec9409463935

Download Submit
memory/1652-0-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1652-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1652-6-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/3056-18-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download