8b831ab71d2d950e465e5943ae8ed4390dbce866e2344b70e373d98e78b59cbd

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
26/03/2024, 14:35

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General

Target

2024-03-26_edf744754e09be6096f7df5b56486022_cryptolocker.exe
Size

77KB
MD5

edf744754e09be6096f7df5b56486022
SHA1

9efdfe4e17b8472a4b7b177bf0901dd99f52f7a3
SHA256

8b831ab71d2d950e465e5943ae8ed4390dbce866e2344b70e373d98e78b59cbd
SHA512

5652772657976bcddc78dd818edde28bf7221a098c8d5d3d4199ef83e9042f93a145fa2311dd77014c9de0101ffcbe42fb875bd5297dab8e8a8ba5a089cbddc5
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIuf6:vCjsIOtEvwDpj5H9YvQd2G

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012251-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012251-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2596	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2808	2024-03-26_edf744754e09be6096f7df5b56486022_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 2808 wrote to memory of 2596	2808	2024-03-26_edf744754e09be6096f7df5b56486022_cryptolocker.exe	28
PID 2808 wrote to memory of 2596	2808	2024-03-26_edf744754e09be6096f7df5b56486022_cryptolocker.exe	28
PID 2808 wrote to memory of 2596	2808	2024-03-26_edf744754e09be6096f7df5b56486022_cryptolocker.exe	28
PID 2808 wrote to memory of 2596	2808	2024-03-26_edf744754e09be6096f7df5b56486022_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_edf744754e09be6096f7df5b56486022_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_edf744754e09be6096f7df5b56486022_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2596

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
77KB

MD5
29de16f4f4994166c0481b6fe6ca9098

SHA1
170bbbbb297e08f3b82e8aebae17f29807987d6f

SHA256
26878aac427cd8cd7374ca462dc179fe9e3cf264964b49da6190a73df7373750

SHA512
2cd413fc022e368d252ed9adf1036cbe6da2e37a238596a6f36fe83e3ee9d67d1dfd7e48b257853981c0138089a2435ed3f557be0bc0477f73d6d9c700fe8ca3

Download Submit
memory/2596-16-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2596-15-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2808-0-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download
memory/2808-2-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2808-1-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download