1a23de75ff7f1c7006f06b667fcead5149670e787143d3d86c4eba6a6c748a88

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/03/2024, 06:34

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General

Target

2024-03-06_c62887970971e4dc35005e96a634eab3_cryptolocker.exe
Size

72KB
MD5

c62887970971e4dc35005e96a634eab3
SHA1

0c27ee52e0437380108e98dcb5a00b7460a35c1b
SHA256

1a23de75ff7f1c7006f06b667fcead5149670e787143d3d86c4eba6a6c748a88
SHA512

c69a341787391338b41584a258fc70c20988f6bf5ac48b29964639a4369ead5f40b35e93987ede3d668caab566ceaa36628d95dafe3ab8381c20297da4e87fd3
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1sc:X6a+SOtEvwDpjBZYvQd2v

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012255-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012255-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2576	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1740	2024-03-06_c62887970971e4dc35005e96a634eab3_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 1740 wrote to memory of 2576	1740	2024-03-06_c62887970971e4dc35005e96a634eab3_cryptolocker.exe	28
PID 1740 wrote to memory of 2576	1740	2024-03-06_c62887970971e4dc35005e96a634eab3_cryptolocker.exe	28
PID 1740 wrote to memory of 2576	1740	2024-03-06_c62887970971e4dc35005e96a634eab3_cryptolocker.exe	28
PID 1740 wrote to memory of 2576	1740	2024-03-06_c62887970971e4dc35005e96a634eab3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-06_c62887970971e4dc35005e96a634eab3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_c62887970971e4dc35005e96a634eab3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2576

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
72KB

MD5
1e249dd8d479dd38d9891c70ec392ccb

SHA1
4aa98b43be7f659308c9cc1ec49def197c68b546

SHA256
de3c07d6d846181e2a6fdaf2cdbca22212b28eecb0e733138e934fbb87dca0c2

SHA512
69148273ccf0ba3b048cab8ee8b678f7a6a87b1343a9b244aba84383883cd155dd99e0b19cca84c5215566bddc5c64167a06a14eef1c1e2bc28ddc37ca390ace

Download Submit
memory/1740-0-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/1740-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1740-3-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2576-15-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2576-17-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download