23d682e61ebc40cb7148d9740e3bce434c37d50e99af0dec1f0d36d1ed4feb16

Analysis

max time kernel
143s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
21/02/2024, 20:05

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-21_f3720cbe274bc3bba60c34e1329be3ac_cryptolocker.exe
Size

45KB
MD5

f3720cbe274bc3bba60c34e1329be3ac
SHA1

c837bfb4110f1b01b9ed0427df4c10d2dcedb86a
SHA256

23d682e61ebc40cb7148d9740e3bce434c37d50e99af0dec1f0d36d1ed4feb16
SHA512

d7fb066a37877e97311aac95fde06f91ffc9ef2abbdd2f2d50144ad5e6a180edd04fe8973dd81a23fcb449e322ee5cda59e3fc8be29d40223fa57213e6731b57
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8z2iaSIO/WZrEu/d+qmsUHQ1wsJ:ZzFbxmLPWQMOtEvwDpj386Sj/WprqQ1n

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 2 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023128-12.dat	CryptoLocker_rule2
behavioral2/memory/1932-24-0x0000000000660000-0x0000000000666000-memory.dmp	CryptoLocker_rule2

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-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	2024-02-21_f3720cbe274bc3bba60c34e1329be3ac_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1932	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 5116 wrote to memory of 1932	5116	2024-02-21_f3720cbe274bc3bba60c34e1329be3ac_cryptolocker.exe	80
PID 5116 wrote to memory of 1932	5116	2024-02-21_f3720cbe274bc3bba60c34e1329be3ac_cryptolocker.exe	80
PID 5116 wrote to memory of 1932	5116	2024-02-21_f3720cbe274bc3bba60c34e1329be3ac_cryptolocker.exe	80

C:\Users\Admin\AppData\Local\Temp\2024-02-21_f3720cbe274bc3bba60c34e1329be3ac_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_f3720cbe274bc3bba60c34e1329be3ac_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5116
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1932

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

Loading Replay Monitor...

Downloads

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

Filesize
46KB

MD5
d34602748ffc333d0bd28a31fde2432b

SHA1
d80de62dc86bb7fef620c2e4574be44b7d6d04b2

SHA256
449744ea99e89e7f3fee98f2a34310d24c31cf5ace31086d69249ba746f8af8f

SHA512
433af1f088f03807bdaa4f13873da2b82a79361383e6fd589660328e3311f9f5504baf9c5d2350903833cb71c6c4236397e51c988f32e49efe9856e09c7cb94e

Download Submit
memory/1932-17-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/1932-18-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/1932-24-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/5116-0-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/5116-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/5116-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download