67409bea58db9b88024f684c057ba163237710ea10035a8e1f47956746fdee2d

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20/02/2024, 06:14

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General

Target

2024-02-20_e9acc5d4a39602fbd3ae4831026c9e85_cryptolocker.exe
Size

99KB
MD5

e9acc5d4a39602fbd3ae4831026c9e85
SHA1

805383387e6581be5e3663412d1621b55d948143
SHA256

67409bea58db9b88024f684c057ba163237710ea10035a8e1f47956746fdee2d
SHA512

73a76f92cc67d3bd1421ee0fe7d67d8f973595074afa804763edb25f6e8010fc023b071be54decfcb269b139aa28214a32b0cf31d65498b84f877f094b92ecd1
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgpQbCJjG:V6a+pOtEvwDpjtzZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012248-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012248-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2316	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2204	2024-02-20_e9acc5d4a39602fbd3ae4831026c9e85_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 2204 wrote to memory of 2316	2204	2024-02-20_e9acc5d4a39602fbd3ae4831026c9e85_cryptolocker.exe	28
PID 2204 wrote to memory of 2316	2204	2024-02-20_e9acc5d4a39602fbd3ae4831026c9e85_cryptolocker.exe	28
PID 2204 wrote to memory of 2316	2204	2024-02-20_e9acc5d4a39602fbd3ae4831026c9e85_cryptolocker.exe	28
PID 2204 wrote to memory of 2316	2204	2024-02-20_e9acc5d4a39602fbd3ae4831026c9e85_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-20_e9acc5d4a39602fbd3ae4831026c9e85_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_e9acc5d4a39602fbd3ae4831026c9e85_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2204
- 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
99KB

MD5
57bffe2874e1a1bc438bfe33a1745051

SHA1
284d58bc1debb89650f51339bf18029a9fc3e068

SHA256
9e1ee39c72e3cd0bfe70b46a450349a4fae4e931c23545c760c619d0c8cc4453

SHA512
1a8abffb207c9990241fe0c8df6dca39ca6063c551c32a10752f9516ef9a3034d55827179ef93ecd94ec19ebd29282656deb5f7552f19e168eaea452a1749901

Download Submit
memory/2204-5-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2204-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2204-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2316-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2316-15-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download