dc665de8a1add1ee33537c31b85a0271941500ccbd30ee02b7ab8ee6f421e382

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15/03/2024, 03:44

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General

Target

2024-03-15_b962c4f402c3140019a8a96ba797af0f_cryptolocker.exe
Size

385KB
MD5

b962c4f402c3140019a8a96ba797af0f
SHA1

8b0f1ccbb999f1bd112fab02c97c6de4c5d682ee
SHA256

dc665de8a1add1ee33537c31b85a0271941500ccbd30ee02b7ab8ee6f421e382
SHA512

d4941c335422d595791762b47a2aa088f646066162f5e56b46e402dad9a5bf87fda51df18efa3d1163f4889d43bcbb025e468f8751def88f571fcfc630219e49
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXK:nnOflT/ZFIjBz3xjTxynGUOUhXK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001418d-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2820	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2916	2024-03-15_b962c4f402c3140019a8a96ba797af0f_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 2916 wrote to memory of 2820	2916	2024-03-15_b962c4f402c3140019a8a96ba797af0f_cryptolocker.exe	28
PID 2916 wrote to memory of 2820	2916	2024-03-15_b962c4f402c3140019a8a96ba797af0f_cryptolocker.exe	28
PID 2916 wrote to memory of 2820	2916	2024-03-15_b962c4f402c3140019a8a96ba797af0f_cryptolocker.exe	28
PID 2916 wrote to memory of 2820	2916	2024-03-15_b962c4f402c3140019a8a96ba797af0f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-15_b962c4f402c3140019a8a96ba797af0f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_b962c4f402c3140019a8a96ba797af0f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2820

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\hasfj.exe

Filesize
386KB

MD5
f9157bc76af8afa46eef3b2f208521c1

SHA1
b739fb00c4a3a22ccd6cd92a917bd10416d86ef0

SHA256
13a0805fa1ee62b079623703a580c2361000aa4c3e2e8de55e70cf4714182bdd

SHA512
9f9a388c9b990a64db2e4f423d38c28a8a119234c34c1824d9201d33387406a8b4a6af0d6fe44209fe12463308fbc7b100b2a38a4c405da4c86e18cb7c53859a

Download Submit
memory/2820-15-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/2820-17-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2916-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2916-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2916-7-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download