e21a615cd5bbe78cba2e661162c9cb9a448ad5d9060bc57b318ecd7d04bdf1e8

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01/02/2024, 23:47

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General

Target

2024-02-01_fed7f2b6574e976f0014cc2cd57ea1e2_cryptolocker.exe
Size

37KB
MD5

fed7f2b6574e976f0014cc2cd57ea1e2
SHA1

54c47f63e6b8313d92f132307e8c4d1421273126
SHA256

e21a615cd5bbe78cba2e661162c9cb9a448ad5d9060bc57b318ecd7d04bdf1e8
SHA512

56754f889f45b0ab9007fe7d98f166bc3810dca89e7782a01b4a75c641821dba70fba40a6503bd3e905528cb3ab01960784bbeab779523fdc83aea555ae45be7
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFCpUD:X6QFElP6n+gJQMOtEvwDpjBmzDUpg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012251-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012251-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2708	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2008	2024-02-01_fed7f2b6574e976f0014cc2cd57ea1e2_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 2008 wrote to memory of 2708	2008	2024-02-01_fed7f2b6574e976f0014cc2cd57ea1e2_cryptolocker.exe	28
PID 2008 wrote to memory of 2708	2008	2024-02-01_fed7f2b6574e976f0014cc2cd57ea1e2_cryptolocker.exe	28
PID 2008 wrote to memory of 2708	2008	2024-02-01_fed7f2b6574e976f0014cc2cd57ea1e2_cryptolocker.exe	28
PID 2008 wrote to memory of 2708	2008	2024-02-01_fed7f2b6574e976f0014cc2cd57ea1e2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-01_fed7f2b6574e976f0014cc2cd57ea1e2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_fed7f2b6574e976f0014cc2cd57ea1e2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2708

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
38KB

MD5
660e77fb5c975ff4d15fcbf11f29b16c

SHA1
6e0df95d07b0a967d16210253e5d3bd0f176b2f8

SHA256
fa683aa1c3ad81f2c812756ca7cac4771b3b89cb655403f0b968f9d7b14e5eff

SHA512
0254ff92eceddb8815a914d2d8b78f2968b0c3ba27ab0c121c8f6b33cf5ac88edee738150cfcc92533c5bbe1a20a4b58cd35575688186f548ccbce2005cb8316

Download Submit
memory/2008-0-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2008-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2008-1-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2708-15-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2708-17-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download