107e38905e41e96b89128884553864fc598046b1c1d7b13da125515c5db47ce0

Analysis

max time kernel
138s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/03/2024, 19:44

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General

Target

2024-03-08_b18d6ad1a19b680baa931a1fe50741c5_cryptolocker.exe
Size

95KB
MD5

b18d6ad1a19b680baa931a1fe50741c5
SHA1

f9a962e1e65ff178477f178d3165595dfb4bf1ef
SHA256

107e38905e41e96b89128884553864fc598046b1c1d7b13da125515c5db47ce0
SHA512

3f41665a70c986b9f409ccc8b0f9bfc99a4ec7a334775aa910131a022ad7cfe4400f6581f0a66ab3db5a4cde3e4815761ebc5ed7ac6d657e7345a3383f6f7e59
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgpH:V6a+pOtEvwDpjtzM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e00000001225e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000e00000001225e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2940	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2176	2024-03-08_b18d6ad1a19b680baa931a1fe50741c5_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 2176 wrote to memory of 2940	2176	2024-03-08_b18d6ad1a19b680baa931a1fe50741c5_cryptolocker.exe	28
PID 2176 wrote to memory of 2940	2176	2024-03-08_b18d6ad1a19b680baa931a1fe50741c5_cryptolocker.exe	28
PID 2176 wrote to memory of 2940	2176	2024-03-08_b18d6ad1a19b680baa931a1fe50741c5_cryptolocker.exe	28
PID 2176 wrote to memory of 2940	2176	2024-03-08_b18d6ad1a19b680baa931a1fe50741c5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-08_b18d6ad1a19b680baa931a1fe50741c5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_b18d6ad1a19b680baa931a1fe50741c5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2940

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
95KB

MD5
b1b3390ad48477584098eb4f6798b273

SHA1
0e22a0f9f4f482cdb46c7c0e42b18af1622b931d

SHA256
9104a029fa8db91e9dde58b52fdeabb79d31b9dc4fe290ca683ae81ec3cb5a93

SHA512
3bb11f5306fffc58184626efbd8edbf7eb1aa52661821b57119dbeb9b3fef0e3d6de27aac078f97314bc534932a136046eac1d8d9225a21076a1c482696a89a9

Download Submit
memory/2176-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2176-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2176-2-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2940-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2940-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download