6a34e822d2d44857de94ca859317ca550bde5ed91c641ae47df3afce5397261b

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
12/05/2024, 20:33

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General

Target

2024-05-12_efa2f2729e09e240821c3166247a22d0_cryptolocker.exe
Size

38KB
MD5

efa2f2729e09e240821c3166247a22d0
SHA1

f24b2cca64e2d6ae2dae2bb2b4f52bca172ad724
SHA256

6a34e822d2d44857de94ca859317ca550bde5ed91c641ae47df3afce5397261b
SHA512

35359fa00102bfb9b550ff5a8ea68a565054b18486045c208cb78592e107137c7616d474ef8b734f8b5b1e4f25e550d66d818834594fb375a80b0a832fddcafe
SSDEEP

768:bA74zYcgT/Ekd0ryfj86U8zbUYqSFq6pU:bA6YcA/X6GISzRqAU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000015d0f-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1992	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1724	2024-05-12_efa2f2729e09e240821c3166247a22d0_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 1724 wrote to memory of 1992	1724	2024-05-12_efa2f2729e09e240821c3166247a22d0_cryptolocker.exe	28
PID 1724 wrote to memory of 1992	1724	2024-05-12_efa2f2729e09e240821c3166247a22d0_cryptolocker.exe	28
PID 1724 wrote to memory of 1992	1724	2024-05-12_efa2f2729e09e240821c3166247a22d0_cryptolocker.exe	28
PID 1724 wrote to memory of 1992	1724	2024-05-12_efa2f2729e09e240821c3166247a22d0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-12_efa2f2729e09e240821c3166247a22d0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-12_efa2f2729e09e240821c3166247a22d0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1992

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
38KB

MD5
b714d8197703f55492f392d0e2e8fcad

SHA1
8d215bc6496ea85435efd8441dd95bd83be0d0ae

SHA256
d16a9b685a98102749b76a1c0763ca438c4cb2d656c62be6436362033dae29aa

SHA512
d4e6eac77d45d006f3ed7572ed71d4334c32a553b9ea6ba5d309f145957ac90c4b327b23cbbf859e78c42319fa5ab74c3e8473300206a34b34a58224d54cfa4c

Download Submit
memory/1724-0-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/1724-8-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/1724-1-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/1992-15-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1992-22-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download