f64c235457a9da8efbc83d627beeb96cccc96feb7559d28d92fb4b35dbc199f1

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
09/04/2024, 10:28

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General

Target

2024-04-09_1bb5687f62f9391e1a9df74a5f4cc587_cryptolocker.exe
Size

75KB
MD5

1bb5687f62f9391e1a9df74a5f4cc587
SHA1

a1bb54146245216352161fd444bb99ded6f47a4f
SHA256

f64c235457a9da8efbc83d627beeb96cccc96feb7559d28d92fb4b35dbc199f1
SHA512

8da4201c4f76f2ebeb25c7253e5f276a660f95d0411b1af128426a8b8445b05c653a9917943eae429b1caa2d101b401f79b16f2653b4963d2d102a4f840d87bd
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1siMOl:X6a+SOtEvwDpjBZYvQd27

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122fa-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122fa-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2548	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1568	2024-04-09_1bb5687f62f9391e1a9df74a5f4cc587_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 1568 wrote to memory of 2548	1568	2024-04-09_1bb5687f62f9391e1a9df74a5f4cc587_cryptolocker.exe	28
PID 1568 wrote to memory of 2548	1568	2024-04-09_1bb5687f62f9391e1a9df74a5f4cc587_cryptolocker.exe	28
PID 1568 wrote to memory of 2548	1568	2024-04-09_1bb5687f62f9391e1a9df74a5f4cc587_cryptolocker.exe	28
PID 1568 wrote to memory of 2548	1568	2024-04-09_1bb5687f62f9391e1a9df74a5f4cc587_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-09_1bb5687f62f9391e1a9df74a5f4cc587_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-09_1bb5687f62f9391e1a9df74a5f4cc587_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1568
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2548

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\asih.exe

Filesize
75KB

MD5
a9835ab1076d8350c67fe322aca1ce1d

SHA1
773d728d13147358c93062251bdefc1e26a8941c

SHA256
05cf3196347963fef147b259e63997c77f24d301b7766459591f8e0bf475c1f6

SHA512
9c2110bc4d37318af4ba5226c18c83f26dd2d1db8bce3363a10ca5ff8993b93d2b4bbc158df3195f16b183f290769239b5b33a9b07919efffb3804eed5cc8712

Download Submit
memory/1568-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1568-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1568-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download