486c3e4ee6546f07a26ad2bdf41934c97a27b5ee2242fc4452e4acab3feacb46

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20/02/2024, 12:34

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General

Target

2024-02-20_6a3976af618661c489d3117a4ee12646_cryptolocker.exe
Size

37KB
MD5

6a3976af618661c489d3117a4ee12646
SHA1

fb1d4518f3fcaacc3d9d902fc5f7accb59b546ba
SHA256

486c3e4ee6546f07a26ad2bdf41934c97a27b5ee2242fc4452e4acab3feacb46
SHA512

026e91bc25278baad9eac667296cc35e5aa6fffd5c17c96004791959a40f90c28d64b1327c439b51a0cea46e4bf7890a8e4714cc85dc8386983cbe7a7bcd94ff
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5cZr/04qXZ:bgX4zYcgTEu6QOaryfjqDDw3sCu5q/8Z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012185-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2740	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2124	2024-02-20_6a3976af618661c489d3117a4ee12646_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 2124 wrote to memory of 2740	2124	2024-02-20_6a3976af618661c489d3117a4ee12646_cryptolocker.exe	28
PID 2124 wrote to memory of 2740	2124	2024-02-20_6a3976af618661c489d3117a4ee12646_cryptolocker.exe	28
PID 2124 wrote to memory of 2740	2124	2024-02-20_6a3976af618661c489d3117a4ee12646_cryptolocker.exe	28
PID 2124 wrote to memory of 2740	2124	2024-02-20_6a3976af618661c489d3117a4ee12646_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-20_6a3976af618661c489d3117a4ee12646_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_6a3976af618661c489d3117a4ee12646_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2740

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
37KB

MD5
00b73e680176177a3d095d22a51b4e39

SHA1
089ca7f0cf607de67546d91a2e3fec92d027eda4

SHA256
71961728004070a234a2a102fcb42bfa0ed34edae83d83d3febd81c50df3ba79

SHA512
79dae509cdfbbd9497cb2cd7b788b1209c9cb15168df6002a02f5e417b95b236cab42b70bfcb552b2e1d7c090d3d7572fc84a11cca47539977af0d3357858644

Download Submit
memory/2124-0-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2124-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2124-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2740-15-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2740-17-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download