59e6041f0a4e5b1811a3fcc718fbc8271bafe7e357163b1c66e995204c21b1c1

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
13/02/2024, 07:51

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General

Target

2024-02-13_71ef4269c92514113b4c6bd6fc7947ba_cryptolocker.exe
Size

35KB
MD5

71ef4269c92514113b4c6bd6fc7947ba
SHA1

561d406d4bef8e354783de5f5eba89d1abcf2cbb
SHA256

59e6041f0a4e5b1811a3fcc718fbc8271bafe7e357163b1c66e995204c21b1c1
SHA512

1147cf91ef43b7ecd80336ec1e042c567e6c698aa3d8004dbbb41e1e515bef84e3409bd2842cc198958258a5ea65806518864c26beb078d7af6cf5c10003735a
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBjb1iIJSFlWvm7:X6QFElP6n+gJQMOtEvwDpjBngHn9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122dc-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122dc-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1508	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2084	2024-02-13_71ef4269c92514113b4c6bd6fc7947ba_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 2084 wrote to memory of 1508	2084	2024-02-13_71ef4269c92514113b4c6bd6fc7947ba_cryptolocker.exe	28
PID 2084 wrote to memory of 1508	2084	2024-02-13_71ef4269c92514113b4c6bd6fc7947ba_cryptolocker.exe	28
PID 2084 wrote to memory of 1508	2084	2024-02-13_71ef4269c92514113b4c6bd6fc7947ba_cryptolocker.exe	28
PID 2084 wrote to memory of 1508	2084	2024-02-13_71ef4269c92514113b4c6bd6fc7947ba_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-13_71ef4269c92514113b4c6bd6fc7947ba_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_71ef4269c92514113b4c6bd6fc7947ba_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1508

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
36KB

MD5
d76ed2523129697af03d72c4cc5cb521

SHA1
f092a21e92dc6cd0e098e6846b24badad245ce22

SHA256
296302fbe66acc0a4ddd38defed51ceb75e4a359ea008b7345f7840616f66b5c

SHA512
b7cccd399a69902659655e7841a2963b56c7888884cfc7740d822841ebd277ea9492de44308f1889be606869dc6d1bc11165f0edaa4cbed9abd8da222ee921d5

Download Submit
memory/1508-16-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1508-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2084-0-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2084-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2084-1-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download