7d86e2646783a7e3a418bd80f98b9990586250dcf15910009e6f8b51020b9c78

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01/02/2024, 15:30

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General

Target

2024-02-01_89c8b76b82792785592d25866adbe6ba_cryptolocker.exe
Size

99KB
MD5

89c8b76b82792785592d25866adbe6ba
SHA1

2cc80809227caecda33dd61eeb75c1c51482c765
SHA256

7d86e2646783a7e3a418bd80f98b9990586250dcf15910009e6f8b51020b9c78
SHA512

eb54ce9cce18e362ce64a13c0a75a9016f568cd803d93c017b0bdf12b2e8cf13c2ff25d17aa5f4b6dfc491f18bfd16bd1b004ddedf0f8d53b3838b0704d781ff
SSDEEP

1536:26QFElP6n+gBQMOtEvwDpjQGYQbN/PKwNCWw6fn:26a+2OtEvwDpjtz1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012233-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012233-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2676	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2508	2024-02-01_89c8b76b82792785592d25866adbe6ba_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 2508 wrote to memory of 2676	2508	2024-02-01_89c8b76b82792785592d25866adbe6ba_cryptolocker.exe	28
PID 2508 wrote to memory of 2676	2508	2024-02-01_89c8b76b82792785592d25866adbe6ba_cryptolocker.exe	28
PID 2508 wrote to memory of 2676	2508	2024-02-01_89c8b76b82792785592d25866adbe6ba_cryptolocker.exe	28
PID 2508 wrote to memory of 2676	2508	2024-02-01_89c8b76b82792785592d25866adbe6ba_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-01_89c8b76b82792785592d25866adbe6ba_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_89c8b76b82792785592d25866adbe6ba_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2676

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
9c039e92d876fd7cf92efc671beafc43

SHA1
0a83c0ff13deeff310ac7c40361871817b4750c9

SHA256
f834e5c7e46b2cdf69178e0b29b4d6cc8f8b12e021044caad2b1ca2e9613bda1

SHA512
f2dbea6f8d443cd2c40abfc4e6ae12f469ffe8fcff54e06eafe5075689123fd05d75929d506d67448928cedd307e513c7df80d9c90051492837c0bfdf97ee32a

Download Submit
memory/2508-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2508-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2508-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2676-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download