933a3b8a09320f9be9cab6067c9f56bec0ffb2357ba36332be5b1d8029b05723

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
21/02/2024, 11:40

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General

Target

2024-02-21_9da8be0bdc10b2462d5bafb7ff2980fc_cryptolocker.exe
Size

35KB
MD5

9da8be0bdc10b2462d5bafb7ff2980fc
SHA1

55adef05ad6b20b27068602d9611d6c8debf89cd
SHA256

933a3b8a09320f9be9cab6067c9f56bec0ffb2357ba36332be5b1d8029b05723
SHA512

14ab33b68c766ab711a297d7a55c101dc26d5ebb8246e4abc2a44b225cacba5d615d8dc3daba2cb291d0e9b41904fb95437af923667915f06a0d09e2fc526e81
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVajSKm5uhy7O4JQ:X6QFElP6n+gJQMOtEvwDpjBcSKm5uhw6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e00000001224c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000e00000001224c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2884	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2368	2024-02-21_9da8be0bdc10b2462d5bafb7ff2980fc_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 2368 wrote to memory of 2884	2368	2024-02-21_9da8be0bdc10b2462d5bafb7ff2980fc_cryptolocker.exe	28
PID 2368 wrote to memory of 2884	2368	2024-02-21_9da8be0bdc10b2462d5bafb7ff2980fc_cryptolocker.exe	28
PID 2368 wrote to memory of 2884	2368	2024-02-21_9da8be0bdc10b2462d5bafb7ff2980fc_cryptolocker.exe	28
PID 2368 wrote to memory of 2884	2368	2024-02-21_9da8be0bdc10b2462d5bafb7ff2980fc_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_9da8be0bdc10b2462d5bafb7ff2980fc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_9da8be0bdc10b2462d5bafb7ff2980fc_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2884

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
35KB

MD5
45528b2fd71a07c44b9c1c300545c068

SHA1
cf17f087f831b583dbcb6320f75f8db862459f3f

SHA256
1db6c67a0a17fbb45601ece046b7c9eb97dc4e6d612471042dc9d9edefe6236c

SHA512
5c31d7615d627f7a26ee0a7abd4054850b53f558c19f3c92b218b4feee9969d58f70896feabb45d2cea5cbb9115b5e21384e6c36a5d0b4ac8ea760ccc9156a78

Download Submit
memory/2368-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2368-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2368-8-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2884-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2884-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download