a9c8b886965a85260e5ecb24dda9adc2f9bacc5e09aeaa4b432d8273cbad5c42

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
09-04-2024 04:08

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General

Target

2024-04-09_97e2864b805616a866a84bb0ac75116a_cryptolocker.exe
Size

54KB
MD5

97e2864b805616a866a84bb0ac75116a
SHA1

5f8188759f790a469602beb6a4dd563fe1b31c42
SHA256

a9c8b886965a85260e5ecb24dda9adc2f9bacc5e09aeaa4b432d8273cbad5c42
SHA512

c012068c3dba5b6ef9a88a6c110b8b2dfa10d0f5fbd046ac2f13e964f47beb3d06858858df03f45933fe5b9c7efe9be77323d95b18daeb2e08b9f6d2e5a2914f
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9Xv+mb6uXvMjCzK:bIDOw9a0DwitDZzc167j8K

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000121cc-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1800	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2236	2024-04-09_97e2864b805616a866a84bb0ac75116a_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 2236 wrote to memory of 1800	2236	2024-04-09_97e2864b805616a866a84bb0ac75116a_cryptolocker.exe	28
PID 2236 wrote to memory of 1800	2236	2024-04-09_97e2864b805616a866a84bb0ac75116a_cryptolocker.exe	28
PID 2236 wrote to memory of 1800	2236	2024-04-09_97e2864b805616a866a84bb0ac75116a_cryptolocker.exe	28
PID 2236 wrote to memory of 1800	2236	2024-04-09_97e2864b805616a866a84bb0ac75116a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-09_97e2864b805616a866a84bb0ac75116a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-09_97e2864b805616a866a84bb0ac75116a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:1800

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\lossy.exe

Filesize
54KB

MD5
dcfa8b584b37e3b3d39fae077b265b85

SHA1
ec59e47c6938bf279dee3ed442e800f7a61d5d48

SHA256
d250b9beb8fc497b97632943b5255bdbbfe9a3264edfc88baa10733dd846a9c3

SHA512
050c7b5903018acc7fe96376517b337dab0dd36a413375e0cbe3a73b6421e31f60ba75f4314c7c224c5c83b5da70e0c5937830be9e1dbedcb1a215f02e00b4f1

Download Submit
memory/1800-15-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1800-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2236-0-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2236-2-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2236-1-0x0000000000550000-0x0000000000556000-memory.dmp

Filesize
24KB

Download