058fab59765393335f646f701c1ed8eee1b37085b69f0bdda99b44cc62f9e44b

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
24/01/2024, 07:46

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-24_c42e9dd8dff21b121be1154a752a87d5_cryptolocker.exe
Size

60KB
MD5

c42e9dd8dff21b121be1154a752a87d5
SHA1

a79d54c989fa0cadcb370ecb188b0e1383352e92
SHA256

058fab59765393335f646f701c1ed8eee1b37085b69f0bdda99b44cc62f9e44b
SHA512

c163f99ba3cf96c0a12cff752c982effd6fde2ed2da777ec8fe19e5cf285d25cdbc94ec6fa2978515a792e6fa219c03b81ef09eb4db65e2348fcf5da0b812689
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMP6:TCjsIOtEvwDpj5HE/OUHnSMJ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1876-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012255-11.dat	CryptoLocker_rule2
behavioral1/memory/1876-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2132-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2132-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1876-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000012255-11.dat	CryptoLocker_set1
behavioral1/memory/1876-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2132-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2132-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2132	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1876	2024-01-24_c42e9dd8dff21b121be1154a752a87d5_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 1876 wrote to memory of 2132	1876	2024-01-24_c42e9dd8dff21b121be1154a752a87d5_cryptolocker.exe	28
PID 1876 wrote to memory of 2132	1876	2024-01-24_c42e9dd8dff21b121be1154a752a87d5_cryptolocker.exe	28
PID 1876 wrote to memory of 2132	1876	2024-01-24_c42e9dd8dff21b121be1154a752a87d5_cryptolocker.exe	28
PID 1876 wrote to memory of 2132	1876	2024-01-24_c42e9dd8dff21b121be1154a752a87d5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-24_c42e9dd8dff21b121be1154a752a87d5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-24_c42e9dd8dff21b121be1154a752a87d5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2132

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
60KB

MD5
f6fa754258ccd12cd202987458648d34

SHA1
bd7660fcd2e5c0de20f1726c847850d2e6feb82b

SHA256
e812193675ed91bd72fa84e50d3956ac55dffe8e7b0803874daa40bdfc79d776

SHA512
a9839b87eec70cab0029c24ad3a331216de702cc556a7d361b09a6d81e047d1c8824e46d99b2f41f0d342341f5642eb7dfb4c7638ee27404dc32f42099ac0d6d

Download Submit
memory/1876-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1876-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1876-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1876-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1876-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2132-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2132-18-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2132-25-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download