96c535e5053797122ddc79e20d2d7a2321ed612fc1391af4f72191d2675bb357

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
18/04/2024, 20:10

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General

Target

2024-04-18_307594aa4ba7c3a8e613bfc3b9dcbaa2_cryptolocker.exe
Size

389KB
MD5

307594aa4ba7c3a8e613bfc3b9dcbaa2
SHA1

d3f5035dc2b61eba9255c2450ca3e92949e927c7
SHA256

96c535e5053797122ddc79e20d2d7a2321ed612fc1391af4f72191d2675bb357
SHA512

50224cc153cf0d4fe6d31f4e96039003601f14080bf3040b6ca8a2d45c08bda407d771c4c8cc37a0086fcbb2d1911c5336d561798760d9ba498d3c5316bf1b07
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzX6:nnOflT/ZFIjBz3xjTxynGUOUhX6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000143fb-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2904	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
3036	2024-04-18_307594aa4ba7c3a8e613bfc3b9dcbaa2_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 3036 wrote to memory of 2904	3036	2024-04-18_307594aa4ba7c3a8e613bfc3b9dcbaa2_cryptolocker.exe	28
PID 3036 wrote to memory of 2904	3036	2024-04-18_307594aa4ba7c3a8e613bfc3b9dcbaa2_cryptolocker.exe	28
PID 3036 wrote to memory of 2904	3036	2024-04-18_307594aa4ba7c3a8e613bfc3b9dcbaa2_cryptolocker.exe	28
PID 3036 wrote to memory of 2904	3036	2024-04-18_307594aa4ba7c3a8e613bfc3b9dcbaa2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-18_307594aa4ba7c3a8e613bfc3b9dcbaa2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-18_307594aa4ba7c3a8e613bfc3b9dcbaa2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3036
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2904

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\hasfj.exe

Filesize
389KB

MD5
aa08207d3b1cd8302ee0b0063166f9df

SHA1
7fa6433b714c7c627b106602eca7a8335e2d753f

SHA256
9168880b6b9fa44546ffadf0b9c84d4ad811ae4c553e746b87235cdd21b84679

SHA512
9e357df3ca3a525f86809e52f162821798e0c0476516ee6c9a7381e0306c68600502688c8b8cfcbf02876104b357fc9203ac91ac6f5f7dee4c768522c6b5d128

Download Submit
memory/2904-15-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/2904-22-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/3036-0-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/3036-1-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

Filesize
24KB

Download
memory/3036-2-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download