bf8326b49357545da10ee6672f074557c67718ec178126692c3ec5371e1e31c6

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
09-03-2024 12:25

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General

Target

2024-03-09_1a17c0f57d5ecfecca54fdfefcf5ec88_cryptolocker.exe
Size

132KB
MD5

1a17c0f57d5ecfecca54fdfefcf5ec88
SHA1

e17a09eda8ed5340453095b160aff8ce2382087e
SHA256

bf8326b49357545da10ee6672f074557c67718ec178126692c3ec5371e1e31c6
SHA512

fbf3514d906c91d77d14197e5ef0e0e83091d818f5e60df70e99cc87f8393952f082cc0acfaad9c41859ad853fd8445589bff0ef553c0ff30f32fde1649813b7
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbxGYQbxGYQblX:V6a+pOtEvwDpjt22x

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000013a3f-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000013a3f-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2316	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2308	2024-03-09_1a17c0f57d5ecfecca54fdfefcf5ec88_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 2308 wrote to memory of 2316	2308	2024-03-09_1a17c0f57d5ecfecca54fdfefcf5ec88_cryptolocker.exe	28
PID 2308 wrote to memory of 2316	2308	2024-03-09_1a17c0f57d5ecfecca54fdfefcf5ec88_cryptolocker.exe	28
PID 2308 wrote to memory of 2316	2308	2024-03-09_1a17c0f57d5ecfecca54fdfefcf5ec88_cryptolocker.exe	28
PID 2308 wrote to memory of 2316	2308	2024-03-09_1a17c0f57d5ecfecca54fdfefcf5ec88_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-09_1a17c0f57d5ecfecca54fdfefcf5ec88_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_1a17c0f57d5ecfecca54fdfefcf5ec88_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2316

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
132KB

MD5
c07d1f19541631fb347360f52804c74f

SHA1
89ddd290bcf6dd51acc8e771f3d6632d9cce29ca

SHA256
7120491e9ace82ac82ba048f7b1d212d8ffd6152caac30fca74478de853a779c

SHA512
43465ac577e67caa0b42238d38a25bf1133bf3069d3eb2f1eb3d33c7a85a9f77cce36d69e393971a16b17f7216bebd714d9dec385fe9d23be3846d5786b6bb2a

Download Submit
memory/2308-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2308-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2308-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2316-15-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2316-19-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download