f54c1c1031812cb3fa0b0dca524737e01b012bd4e149bad8ef33edeb77aa74c2

Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
26/04/2024, 18:34

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General

Target

2024-04-26_f142a3b170c18ae7d76aa163b0675704_cryptolocker.exe
Size

90KB
MD5

f142a3b170c18ae7d76aa163b0675704
SHA1

8206b4d9b75426643fac45961e2d7d41e56300a4
SHA256

f54c1c1031812cb3fa0b0dca524737e01b012bd4e149bad8ef33edeb77aa74c2
SHA512

87bbc816117218d4995714d217b323187807f1851482ad31411665b40138a713e8d4edb491fcd01ab63f67cf3a1e5735aefd03765d9a19db10f2bd12a61ef501
SSDEEP

1536:vj+jsMQMOtEvwDpj5H8u8rBN6nqEZNi1OkQe:vCjsIOtEvwDpj5H8zPs8

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023276-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023276-12.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-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	2024-04-26_f142a3b170c18ae7d76aa163b0675704_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1436	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 4212 wrote to memory of 1436	4212	2024-04-26_f142a3b170c18ae7d76aa163b0675704_cryptolocker.exe	79
PID 4212 wrote to memory of 1436	4212	2024-04-26_f142a3b170c18ae7d76aa163b0675704_cryptolocker.exe	79
PID 4212 wrote to memory of 1436	4212	2024-04-26_f142a3b170c18ae7d76aa163b0675704_cryptolocker.exe	79

C:\Users\Admin\AppData\Local\Temp\2024-04-26_f142a3b170c18ae7d76aa163b0675704_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_f142a3b170c18ae7d76aa163b0675704_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4212
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1436

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
91KB

MD5
52e4e12a8ec6b4cfb40343867f067654

SHA1
58278d897f921ba72b4d3a38b61cde505de30b95

SHA256
ea2138c23032365a14e8e971c8b7aad14399a1d78af8d5cacec9ac2a765748f1

SHA512
1267f031501dab3d448f80fe585cbe88ddbc3e7767886b3b2ca7bfe1470c4401d54dc4e17a5b16da041a8dec3b07fa643f4cd2ae477dba613914fa7df11c892b

Download Submit
memory/1436-17-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/1436-23-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4212-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4212-1-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/4212-8-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download