e803293d3ee7d689f7edee0f75b99ffa35c6ace1ee77893991700799f8c308c9

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240220-en
resource tags

arch:x64arch:x86image:win10v2004-20240220-enlocale:en-usos:windows10-2004-x64system
submitted
21/02/2024, 14:25

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General

Target

2024-02-21_1d24ef2ac5e67a9cf6a038ae72cb29ba_cryptolocker.exe
Size

120KB
MD5

1d24ef2ac5e67a9cf6a038ae72cb29ba
SHA1

1289ec2c63f92fee809a6eb26415b072b34b3271
SHA256

e803293d3ee7d689f7edee0f75b99ffa35c6ace1ee77893991700799f8c308c9
SHA512

1510d8b9cc4b3605c6442eb70dd3efc566e9dcfdae79b5a595ba7ad4c0b1ae98e8a284437286fb8e193db978eb72d92ac9e4b8c2a29b607f4c50670493d6d992
SSDEEP

768:gUQz7yVEhs9+4T/1bytOOtEvwDpjNbZ7uyA36S7MpxRIIXVe3mU9TYwlOBT6:gUj+AIMOtEvwDpjNbwQEIPlemUhYq

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a00000001e6a8-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000a00000001e6a8-12.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-1-5-21-4023562663-3911442808-1494947993-1000\Control Panel\International\Geo\Nation	2024-02-21_1d24ef2ac5e67a9cf6a038ae72cb29ba_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
420	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 868 wrote to memory of 420	868	2024-02-21_1d24ef2ac5e67a9cf6a038ae72cb29ba_cryptolocker.exe	89
PID 868 wrote to memory of 420	868	2024-02-21_1d24ef2ac5e67a9cf6a038ae72cb29ba_cryptolocker.exe	89
PID 868 wrote to memory of 420	868	2024-02-21_1d24ef2ac5e67a9cf6a038ae72cb29ba_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-02-21_1d24ef2ac5e67a9cf6a038ae72cb29ba_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_1d24ef2ac5e67a9cf6a038ae72cb29ba_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:868
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:420

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
120KB

MD5
9a6a18352de71f3e57cefa5cfc110bb0

SHA1
9788f0e932d3c589fc1f4a9fc96a61801a7b5091

SHA256
37b8df2cbc33b21668bec611334f9ea02fb0ca54f5531367df21c9848e98a399

SHA512
a8f8744de1e467b8900c9129e7f753f2a3cd4570b847101dcf1a753df73137f3b319e3219e5203e1086bc9a982149f07778e3d3043ef3e1b97bae1e9a03b4684

Download Submit
memory/420-17-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/420-19-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/868-0-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/868-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/868-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download