a9ce0cb3c8cbb258dcb546960111584b25bb65be1d835d9a5a10a5ba63bdb8bd

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/04/2024, 15:39

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General

Target

2024-04-08_b06d855689815ab8d8e34e298967ed22_cryptolocker.exe
Size

99KB
MD5

b06d855689815ab8d8e34e298967ed22
SHA1

5c1d8316658db37abb10a126e9a94f5fa50b22ab
SHA256

a9ce0cb3c8cbb258dcb546960111584b25bb65be1d835d9a5a10a5ba63bdb8bd
SHA512

75aa3cca5c0c83beef6d0178b6cc4cd35c92c8e950275dfad212558a5be843680a9474828a1d1b016552545aa73eef19295892c63de8dc1917368500a827f9a2
SSDEEP

1536:26QFElP6n+gBQMOtEvwDpjQGYQbN/PKwNCWwm:26a+2OtEvwDpjtzJ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00050000000120e0-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00050000000120e0-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2652	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2912	2024-04-08_b06d855689815ab8d8e34e298967ed22_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 2912 wrote to memory of 2652	2912	2024-04-08_b06d855689815ab8d8e34e298967ed22_cryptolocker.exe	28
PID 2912 wrote to memory of 2652	2912	2024-04-08_b06d855689815ab8d8e34e298967ed22_cryptolocker.exe	28
PID 2912 wrote to memory of 2652	2912	2024-04-08_b06d855689815ab8d8e34e298967ed22_cryptolocker.exe	28
PID 2912 wrote to memory of 2652	2912	2024-04-08_b06d855689815ab8d8e34e298967ed22_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-08_b06d855689815ab8d8e34e298967ed22_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-08_b06d855689815ab8d8e34e298967ed22_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2652

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
99KB

MD5
21faf7d4686bdfe11f3f96702e1763d2

SHA1
ec1d73e55b8856f2c8665b96ae40c1c3de3e2ccf

SHA256
390cc3478687165b131c96eb97a44445a9de7ad25792e94d353d8d25ab526e47

SHA512
9f999af3cef34c1ca4547268fcde213d8d4b25e262ff0603d1ca77e248a1fe1d68c551bce3bd7424ca0f49e6c112bbf1aaf31b948e9121982f3160799d531af7

Download Submit
memory/2652-15-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2912-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2912-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2912-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download