54d634304a152fe21d8ebb31dbea7ef5fcfce0cccecc62976e1774f8177794d2

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27/01/2024, 10:46

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General

Target

2024-01-27_ff7895c7a250b2d7dde439cdb28345d6_cryptolocker.exe
Size

30KB
MD5

ff7895c7a250b2d7dde439cdb28345d6
SHA1

7cbac253ff6fd09a543518d03a21e22f4ed57e70
SHA256

54d634304a152fe21d8ebb31dbea7ef5fcfce0cccecc62976e1774f8177794d2
SHA512

6c314e607653f6e7e74c03f4ece304d2b4c985c354f157b1d6548c96a92e7ee1f3ee7c4dd8a411fed4d17bd1109a367371f5c93a65a37993c9537e0c00e53ba6
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9RDB:b7o/2n1TCraU6GD1a4Xt9Rt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012252-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2260	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2572	2024-01-27_ff7895c7a250b2d7dde439cdb28345d6_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
2572	2024-01-27_ff7895c7a250b2d7dde439cdb28345d6_cryptolocker.exe
2260	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2572 wrote to memory of 2260	2572	2024-01-27_ff7895c7a250b2d7dde439cdb28345d6_cryptolocker.exe	28
PID 2572 wrote to memory of 2260	2572	2024-01-27_ff7895c7a250b2d7dde439cdb28345d6_cryptolocker.exe	28
PID 2572 wrote to memory of 2260	2572	2024-01-27_ff7895c7a250b2d7dde439cdb28345d6_cryptolocker.exe	28
PID 2572 wrote to memory of 2260	2572	2024-01-27_ff7895c7a250b2d7dde439cdb28345d6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-27_ff7895c7a250b2d7dde439cdb28345d6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_ff7895c7a250b2d7dde439cdb28345d6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2572
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2260

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\rewok.exe

Filesize
30KB

MD5
a65d02fc9baa4b9178298bc7c93d8410

SHA1
cf482d0d1a9ba7665773ba8d70718600f7879887

SHA256
1373d13b4bc7885bcad4c61e131cff44288d5ec5f8075abdac112c8b2521763a

SHA512
8a1af4d9e07a96caae9e01295cfc13ccb5858b04c0103bce9cad712020259b6eeb94517df0e43f95c6675d2ba8162b26daa45ab1357eb3659a38d52d26f8aa3c

Download Submit
memory/2260-19-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2572-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2572-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2572-2-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download