b89afc9357b4129aef944863ddfd435d1b3bd413943405e30acea9bbf0a63fb4

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
30-04-2024 05:15

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General

Target

2024-04-30_9130340694c4bbeebe37381f25bd71e9_cryptolocker.exe
Size

93KB
MD5

9130340694c4bbeebe37381f25bd71e9
SHA1

086460eda67d4649fd9b51abbf4d72d269bfb6fe
SHA256

b89afc9357b4129aef944863ddfd435d1b3bd413943405e30acea9bbf0a63fb4
SHA512

3bdc0f2ba6268754400496f279041567f56bc755556f1688873a08033bf6b1b7161a42e8f3eb9f431e84b494590bb56915ba337e09a547d6f61ca70b0c7d3b57
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwMgN6:V6a+pOtEvwDpjtzg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000015f7a-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000015f7a-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1712	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2968	2024-04-30_9130340694c4bbeebe37381f25bd71e9_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 2968 wrote to memory of 1712	2968	2024-04-30_9130340694c4bbeebe37381f25bd71e9_cryptolocker.exe	28
PID 2968 wrote to memory of 1712	2968	2024-04-30_9130340694c4bbeebe37381f25bd71e9_cryptolocker.exe	28
PID 2968 wrote to memory of 1712	2968	2024-04-30_9130340694c4bbeebe37381f25bd71e9_cryptolocker.exe	28
PID 2968 wrote to memory of 1712	2968	2024-04-30_9130340694c4bbeebe37381f25bd71e9_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_9130340694c4bbeebe37381f25bd71e9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_9130340694c4bbeebe37381f25bd71e9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2968
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1712

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
93KB

MD5
23a63c579ece77869c1236690eb25e9a

SHA1
28b2c08a9f97a04e9485943ff8d27819270f702c

SHA256
8551ecfd4ab20db40b55c7185eba46798fce6ff8e52a54a80f9037159df86506

SHA512
9e1de4d7bb8b1960a1a2e1bdf39f637fd198e5012a54bdda86e6b737fb886de274ac0066f617376f0e00fc3a9416624e27a3a8578c2436f60732e86d247f718f

Download Submit
memory/1712-22-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1712-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2968-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2968-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2968-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download