9d897c9b8372e2ecd26226413a11e3ffb092a863c2da06a606f61572b0dd6474

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
18-03-2024 18:55

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General

Target

2024-03-18_863fdfdde9b913c4c618dd04103ba6c1_cryptolocker.exe
Size

385KB
MD5

863fdfdde9b913c4c618dd04103ba6c1
SHA1

4ffc368b1f8ab9ae9f571a9522fb72c7f353f046
SHA256

9d897c9b8372e2ecd26226413a11e3ffb092a863c2da06a606f61572b0dd6474
SHA512

5d1b4e995c198cd1d84e4d92223e9a049a9499285f070f4438bdcb40a12af2743c2ebacdfe31e34424952f30271cf60a7a52b059b687a5195afb8da492b73034
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzX2:nnOflT/ZFIjBz3xjTxynGUOUhX2

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012248-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2644	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2112	2024-03-18_863fdfdde9b913c4c618dd04103ba6c1_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 2112 wrote to memory of 2644	2112	2024-03-18_863fdfdde9b913c4c618dd04103ba6c1_cryptolocker.exe	28
PID 2112 wrote to memory of 2644	2112	2024-03-18_863fdfdde9b913c4c618dd04103ba6c1_cryptolocker.exe	28
PID 2112 wrote to memory of 2644	2112	2024-03-18_863fdfdde9b913c4c618dd04103ba6c1_cryptolocker.exe	28
PID 2112 wrote to memory of 2644	2112	2024-03-18_863fdfdde9b913c4c618dd04103ba6c1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-18_863fdfdde9b913c4c618dd04103ba6c1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-18_863fdfdde9b913c4c618dd04103ba6c1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2644

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
386KB

MD5
69a431281c5827da48ffd16bd09409fa

SHA1
5d7cfa2ac7ef05117bc1718a872457321a8e8aea

SHA256
6dab12d480a270b5399140179b9ed89e594eab669d1c2ce723c50cab1ffbd799

SHA512
1a53de1e3f567761c988c11e75eaf77970dd114041ca35372efd9e1934f8fc5ec2b1749c07df46a4389547471d3b17ce7443170039365a9038331997af977f88

Download Submit
memory/2112-0-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2112-1-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2112-8-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2644-15-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/2644-22-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download