b14277c2cb7f04becfcffa947345ce187f7434369cf693e6d8534d9949371c38

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18/02/2024, 08:27

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General

Target

2024-02-18_1c9e388849e3a62ec5d45e018a6ead86_cryptolocker.exe
Size

62KB
MD5

1c9e388849e3a62ec5d45e018a6ead86
SHA1

d0e6ba4b1aa06962ceca3c02015eed624e8990fb
SHA256

b14277c2cb7f04becfcffa947345ce187f7434369cf693e6d8534d9949371c38
SHA512

43af39b921cc21a0983f76dd8453710b9cf1b2df5353a98d0e82755a3bd9b8480c50f4df13b349a7a301da7e1f4a9e81badf3ebbf13983586b55b2df02c15bd1
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPvda:TCjsIOtEvwDpj5HE/OUHnSMYX

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1984-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012267-14.dat	CryptoLocker_rule2
behavioral1/memory/2384-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1984-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2384-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1984-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000012267-14.dat	CryptoLocker_set1
behavioral1/memory/2384-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1984-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2384-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2384	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1984	2024-02-18_1c9e388849e3a62ec5d45e018a6ead86_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 2384	1984	2024-02-18_1c9e388849e3a62ec5d45e018a6ead86_cryptolocker.exe	28
PID 1984 wrote to memory of 2384	1984	2024-02-18_1c9e388849e3a62ec5d45e018a6ead86_cryptolocker.exe	28
PID 1984 wrote to memory of 2384	1984	2024-02-18_1c9e388849e3a62ec5d45e018a6ead86_cryptolocker.exe	28
PID 1984 wrote to memory of 2384	1984	2024-02-18_1c9e388849e3a62ec5d45e018a6ead86_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_1c9e388849e3a62ec5d45e018a6ead86_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_1c9e388849e3a62ec5d45e018a6ead86_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2384

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

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
62KB

MD5
7c874a1bbcc0044e5724edda05eb1081

SHA1
d12eb68393442cc108d66f94c761bca18f4b2c4c

SHA256
54641053bb9b3b4afa9ce1526011f2be2c9a5f3307856746aef92e74d317eb0a

SHA512
7eb37a37c8ba740762c2ac910ecee0e4db5016560a3fcffd9c79e18d7830bed9881f6c2b96e9bfde712f9834bfa9a177477843e145b59484e9702295a15010fb

Download Submit
memory/1984-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1984-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1984-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1984-4-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1984-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2384-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2384-18-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2384-19-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2384-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download