a686f7a908003b26776e00daf4c3f676988b77af6604421ddba8bb5383ed588e

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-02-2024 19:53

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General

Target

2024-02-28_b29e6aac77682741d5cad2c33451a969_cryptolocker.exe
Size

386KB
MD5

b29e6aac77682741d5cad2c33451a969
SHA1

1bd588162ff15ca1c15ec42f31b72ab4d560fb68
SHA256

a686f7a908003b26776e00daf4c3f676988b77af6604421ddba8bb5383ed588e
SHA512

a7a44400135471af3a8ba00248b60f6b1f1ab5fe738381de34de13ce6a6d257abd62d689f2246c48f0220e2bc73203a61ff9ed643c74e1985c93a0c1dc6c9162
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzX7:nnOflT/ZFIjBz3xjTxynGUOUhX7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000013420-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1404	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2320	2024-02-28_b29e6aac77682741d5cad2c33451a969_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 2320 wrote to memory of 1404	2320	2024-02-28_b29e6aac77682741d5cad2c33451a969_cryptolocker.exe	28
PID 2320 wrote to memory of 1404	2320	2024-02-28_b29e6aac77682741d5cad2c33451a969_cryptolocker.exe	28
PID 2320 wrote to memory of 1404	2320	2024-02-28_b29e6aac77682741d5cad2c33451a969_cryptolocker.exe	28
PID 2320 wrote to memory of 1404	2320	2024-02-28_b29e6aac77682741d5cad2c33451a969_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-28_b29e6aac77682741d5cad2c33451a969_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_b29e6aac77682741d5cad2c33451a969_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1404

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\hasfj.exe

Filesize
386KB

MD5
aee71e6c244fdf90cd488bdbe79a2c91

SHA1
326e337358ee37df0bb47d3666b0c34b85427377

SHA256
8810471287c659f35169249cdc25a83c7d2db0b559859e8b6e9d48f1cf15e33e

SHA512
e35111903473a26e9b1da30907f686c90179545a2705fc71de776e15117c658dd77627653f491c8b63ed7f38e5a56bcfcec30cc4dab6e20b249bb87d8dfd3647

Download Submit
memory/1404-15-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

Filesize
24KB

Download
memory/1404-22-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2320-0-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2320-2-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2320-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download