7e19f4287fc914a6b91486619443aabd94b46da58b207e47bc99fa695235e626

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
26/04/2024, 04:23

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General

Target

2024-04-26_013bacb8d07453bccc2b07569b25783a_cryptolocker.exe
Size

38KB
MD5

013bacb8d07453bccc2b07569b25783a
SHA1

2c78dd30f1a60196c51862ab7a73bf21b5f36824
SHA256

7e19f4287fc914a6b91486619443aabd94b46da58b207e47bc99fa695235e626
SHA512

bc69eb71caecda519bf3f4b79a4110d019deee93f8f90203273897d2f698c8a2743d48a689cdb8bad714110ef85d6ecbfbd9851117ccf11256774c8bc1408c30
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5axa:V6QFElP6n+gMQMOtEvwDpjyaYaI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9b1-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9b1-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	2024-04-26_013bacb8d07453bccc2b07569b25783a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4464	asih.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 324 wrote to memory of 4464	324	2024-04-26_013bacb8d07453bccc2b07569b25783a_cryptolocker.exe	85
PID 324 wrote to memory of 4464	324	2024-04-26_013bacb8d07453bccc2b07569b25783a_cryptolocker.exe	85
PID 324 wrote to memory of 4464	324	2024-04-26_013bacb8d07453bccc2b07569b25783a_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-04-26_013bacb8d07453bccc2b07569b25783a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_013bacb8d07453bccc2b07569b25783a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:324
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4464

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
38KB

MD5
3902519613af4fe5f89d915c64cb8662

SHA1
a75b99798373f0ecc1d407d49fff8aa389f1c74f

SHA256
cd175dc112876b3d131fb672d9267613eb0347e2d380e709145ed3609358a8f7

SHA512
48e31b81eb4b98b297510ca250ad992faf9d7d908982d67403cdf18e3cc598a1490d8c4bf7f191c6953b4b1cfed367de6c8a50de89cb61c5a0c0714931a3ce67

Download Submit
memory/324-0-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/324-2-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/324-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/4464-18-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download