b62d9eed37fe9d7a32733493a2bc1c0039a66c0010a95c9cb5ec1c0d637dc27f

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
29/04/2024, 03:30

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General

Target

2024-04-29_36b9a181c98e6ffcfb5e457c6db6d8b7_cryptolocker.exe
Size

84KB
MD5

36b9a181c98e6ffcfb5e457c6db6d8b7
SHA1

dda3045bde468e0312016a7c30ec17f1d682fd2a
SHA256

b62d9eed37fe9d7a32733493a2bc1c0039a66c0010a95c9cb5ec1c0d637dc27f
SHA512

05d3368950f9201e97b4f5a4fa812a3ef2d9629e27a6138b8df75a180ebaa1e3b72218de3a5dd2b16ee28029d51daa31cc4ca005601e5d42fffca8621cbe889e
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yFPnjX:V6QFElP6n+gMQMOtEvwDpjyaLccVNld

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001225d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001225d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2120	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1640	2024-04-29_36b9a181c98e6ffcfb5e457c6db6d8b7_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 1640 wrote to memory of 2120	1640	2024-04-29_36b9a181c98e6ffcfb5e457c6db6d8b7_cryptolocker.exe	28
PID 1640 wrote to memory of 2120	1640	2024-04-29_36b9a181c98e6ffcfb5e457c6db6d8b7_cryptolocker.exe	28
PID 1640 wrote to memory of 2120	1640	2024-04-29_36b9a181c98e6ffcfb5e457c6db6d8b7_cryptolocker.exe	28
PID 1640 wrote to memory of 2120	1640	2024-04-29_36b9a181c98e6ffcfb5e457c6db6d8b7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-29_36b9a181c98e6ffcfb5e457c6db6d8b7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-29_36b9a181c98e6ffcfb5e457c6db6d8b7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2120

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
85KB

MD5
3755522afbf3e74d05da4ad38b8dca12

SHA1
464149d8267dc4eac9a34462141c8e5e341a4196

SHA256
0b5074db853d734dcab8ac1c346c9ae533daea71ebdd2a96a786aea68f488813

SHA512
0af35f9cb871933f0041ab407aaed719df1a0cbf63c450f234a1b666ad974119a1106da6458b7c3c9990d466e8818338a0d42ef4e8cd27d2d416fd95e153c2e4

Download Submit
memory/1640-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1640-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1640-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2120-15-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2120-22-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download