9e3d9313af4007202ca124e59a057850aa3131853de5f979ba47d54511422fe3

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
29-04-2024 05:28

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General

Target

2024-04-29_5b42bc4efe0067aa860dd469ba6291e5_cryptolocker.exe
Size

43KB
MD5

5b42bc4efe0067aa860dd469ba6291e5
SHA1

89f78f655e14385078cfe0f8e545cf5ee8d0abee
SHA256

9e3d9313af4007202ca124e59a057850aa3131853de5f979ba47d54511422fe3
SHA512

2f8214527c9bf38cd59ed54b0b0ece336713a71af2e3e617f070c51308f19ff7fff43de2c8ad1e331fddaf442b733ef1348c1b8bf38a64a91ff4b50b40a7aa4c
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMphqp:bc/y2lkF0+Beqp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000015d61-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2988	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
3028	2024-04-29_5b42bc4efe0067aa860dd469ba6291e5_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
3028	2024-04-29_5b42bc4efe0067aa860dd469ba6291e5_cryptolocker.exe
2988	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 2988	3028	2024-04-29_5b42bc4efe0067aa860dd469ba6291e5_cryptolocker.exe	28
PID 3028 wrote to memory of 2988	3028	2024-04-29_5b42bc4efe0067aa860dd469ba6291e5_cryptolocker.exe	28
PID 3028 wrote to memory of 2988	3028	2024-04-29_5b42bc4efe0067aa860dd469ba6291e5_cryptolocker.exe	28
PID 3028 wrote to memory of 2988	3028	2024-04-29_5b42bc4efe0067aa860dd469ba6291e5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-29_5b42bc4efe0067aa860dd469ba6291e5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-29_5b42bc4efe0067aa860dd469ba6291e5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3028
- 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:2988

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
43KB

MD5
9fb817f7f3186db777f4b5f7b64b0ef4

SHA1
e61af4090784199afc24b28638403adfdef5e2ef

SHA256
72a010cf3e17b73c2281b53f1b437bb28976817d21b09c76692791ae124068b5

SHA512
8272534d9baa9c2417f441ea3d0f99d67358d45c2ce091164b8b36b06492c7a92fc981ab887022fd31e00ee864f1e083f9c58957462cb8841d5ba0697e527dd6

Download Submit
memory/2988-23-0x0000000002920000-0x0000000002926000-memory.dmp

Filesize
24KB

Download
memory/3028-0-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/3028-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3028-8-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download