a5f4592cd1f6065c79ec1c616d01568c9827265bca2771bf506a3cad27dd55bc

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
01/02/2024, 23:29

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General

Target

2024-02-01_a49a7295915aa2c7342b585aba3109ae_cryptolocker.exe
Size

39KB
MD5

a49a7295915aa2c7342b585aba3109ae
SHA1

30609cb8cce8c33aed72463afa7177a9985a1357
SHA256

a5f4592cd1f6065c79ec1c616d01568c9827265bca2771bf506a3cad27dd55bc
SHA512

81b30798601fb913825523629ad9ffbe1e4ad87886b3966bec4806896a38d4e81d81a196a9b53534cfd6d83c6c8480d7c6a9712be8be44d57d39814d41db83ab
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8POK2:bIDOw9a0Dwo3P1ojvUSDhY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000014825-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2884	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
3040	2024-02-01_a49a7295915aa2c7342b585aba3109ae_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 3040 wrote to memory of 2884	3040	2024-02-01_a49a7295915aa2c7342b585aba3109ae_cryptolocker.exe	28
PID 3040 wrote to memory of 2884	3040	2024-02-01_a49a7295915aa2c7342b585aba3109ae_cryptolocker.exe	28
PID 3040 wrote to memory of 2884	3040	2024-02-01_a49a7295915aa2c7342b585aba3109ae_cryptolocker.exe	28
PID 3040 wrote to memory of 2884	3040	2024-02-01_a49a7295915aa2c7342b585aba3109ae_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-01_a49a7295915aa2c7342b585aba3109ae_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_a49a7295915aa2c7342b585aba3109ae_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2884

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\lossy.exe

Filesize
39KB

MD5
101558820082327e33bcadfdeccbc5a9

SHA1
857b3ec651853fa186159811ea443cde2445c347

SHA256
4194e79eca458b6601cfe6d6106695926ec34296407e27a2a03d9f1f5c99777f

SHA512
5df1c17daef26f27a472574144dc9970294206d7c9d23f14d50514da445b47fd4f7797adbe21daa15e3e732fda0d173aec5f715f3196631120255444010a9f75

Download Submit
memory/2884-15-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2884-22-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/3040-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/3040-1-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/3040-8-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download