74929909e74596863bf5beff160850eb077a1612e3c9c25a37230eb40ab77ada

Analysis

max time kernel
91s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29/02/2024, 03:57

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General

Target

2024-02-29_ebf0b2550febb6b79cf2036c3b14581c_cryptolocker.exe
Size

77KB
MD5

ebf0b2550febb6b79cf2036c3b14581c
SHA1

643cdab4187c145e38635c8a628e8428c9f8ef18
SHA256

74929909e74596863bf5beff160850eb077a1612e3c9c25a37230eb40ab77ada
SHA512

07b0612182900fa54b520815785aa2212ebbe4697125fd73f09afebf250fcb96ae693d6d6c17b9c2e1e40a4503521bd6778383f7ada083c0109ed35d17f74c76
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KEWTeL5c1:ZVxkGOtEvwDpjcaxS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-13.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-02-29_ebf0b2550febb6b79cf2036c3b14581c_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
4572	misid.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 4580 wrote to memory of 4572	4580	2024-02-29_ebf0b2550febb6b79cf2036c3b14581c_cryptolocker.exe	87
PID 4580 wrote to memory of 4572	4580	2024-02-29_ebf0b2550febb6b79cf2036c3b14581c_cryptolocker.exe	87
PID 4580 wrote to memory of 4572	4580	2024-02-29_ebf0b2550febb6b79cf2036c3b14581c_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-29_ebf0b2550febb6b79cf2036c3b14581c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-29_ebf0b2550febb6b79cf2036c3b14581c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4580
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4572

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\misid.exe

Filesize
77KB

MD5
42cd97567ac6070fa4b426a3c13d5fc6

SHA1
f324094aff188677bb525f0281e2f877c12edb44

SHA256
c68fba39c68f2fbe6a33603db7b2d8a77146b2534830b2eaf640dfe61536c4c7

SHA512
a168e6844cb3ce2351ec081905dd562b2704d7f0b2d947480644c8bf2f8ad9047ff42177b637995f840ab20882028f00ab0243140090a786c15a35c6762aadbf

Download Submit
memory/4572-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4572-25-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/4580-0-0x00000000004D0000-0x00000000004D3000-memory.dmp

Filesize
12KB

Download
memory/4580-1-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/4580-2-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/4580-3-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/4580-17-0x00000000004D0000-0x00000000004D3000-memory.dmp

Filesize
12KB

Download