1cb022a566752c17c7a3bf804de5aedee8bc4e8980a5f86def6e227617440510

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27-01-2024 04:28

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General

Target

2024-01-27_48e2d9b70a77969814d1ad5f59833cb0_cryptolocker.exe
Size

43KB
MD5

48e2d9b70a77969814d1ad5f59833cb0
SHA1

333a90c8052d3966908c00b2fc6fe31f0ff7d6d2
SHA256

1cb022a566752c17c7a3bf804de5aedee8bc4e8980a5f86def6e227617440510
SHA512

7665fbb67e53b9e264c1274f5131af899da7453a3c0e151a93ec58a60649c2796fe132ce6f9f22d2657ec6cd9f164f16cd3c1281cd91e6dd34e01cc756b5696c
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedm+MyobK:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+b

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral1/memory/1928-2-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x00070000000122c4-11.dat	CryptoLocker_rule2
behavioral1/memory/2460-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/1928-2-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x00070000000122c4-11.dat	CryptoLocker_set1
behavioral1/memory/2460-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2460	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1928	2024-01-27_48e2d9b70a77969814d1ad5f59833cb0_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 1928 wrote to memory of 2460	1928	2024-01-27_48e2d9b70a77969814d1ad5f59833cb0_cryptolocker.exe	28
PID 1928 wrote to memory of 2460	1928	2024-01-27_48e2d9b70a77969814d1ad5f59833cb0_cryptolocker.exe	28
PID 1928 wrote to memory of 2460	1928	2024-01-27_48e2d9b70a77969814d1ad5f59833cb0_cryptolocker.exe	28
PID 1928 wrote to memory of 2460	1928	2024-01-27_48e2d9b70a77969814d1ad5f59833cb0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-27_48e2d9b70a77969814d1ad5f59833cb0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_48e2d9b70a77969814d1ad5f59833cb0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1928
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2460

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
44KB

MD5
af7c3411e6c71ecdc08ef222e5a071f2

SHA1
6031cb3ad12d037d09af676db1ca2aa946aadc9f

SHA256
b1bb71311a07a50c38a1cf4f8b93872c1f7040098b6a09779ad7da5843ffa96d

SHA512
10a5091dd2d1e74a7b25e1a19e93d680fff8aa6f864d7ad654e23fbc25cdce959fbd6b875adf026851dc53ff55dad825af471736c78746511755f779d6da9178

Download Submit
memory/1928-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/1928-2-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1928-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1928-4-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2460-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2460-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2460-24-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download