4451611b7da1bc883789f4f952f2a8b04fe15bc4792aaa6ca479db2df1c65133

Analysis

max time kernel
143s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25-02-2024 02:45

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General

Target

2024-02-25_ba504d1aef112af7be77060d5386f37e_cryptolocker.exe
Size

39KB
MD5

ba504d1aef112af7be77060d5386f37e
SHA1

8ae821ce54349cfab5442d9588bb55ed47fd001d
SHA256

4451611b7da1bc883789f4f952f2a8b04fe15bc4792aaa6ca479db2df1c65133
SHA512

8f9da5f8f01fec98387d20c23928e63153c82c7b7ba7969e2905a6b1cb13c282e2d54fe77c47d2e9bb46746db10e01bf3c6493211a2d7b7379781ad990082c7b
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5axRVZBL:V6QFElP6n+gMQMOtEvwDpjyaYaLBL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002310e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002310e-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-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	2024-02-25_ba504d1aef112af7be77060d5386f37e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3864	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 824 wrote to memory of 3864	824	2024-02-25_ba504d1aef112af7be77060d5386f37e_cryptolocker.exe	85
PID 824 wrote to memory of 3864	824	2024-02-25_ba504d1aef112af7be77060d5386f37e_cryptolocker.exe	85
PID 824 wrote to memory of 3864	824	2024-02-25_ba504d1aef112af7be77060d5386f37e_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-25_ba504d1aef112af7be77060d5386f37e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-25_ba504d1aef112af7be77060d5386f37e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:824
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3864

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
39KB

MD5
28d2c68742d8847aaf30c05fc364cbb8

SHA1
ee501aac2fedbae42d2bf5186600c819c522b41f

SHA256
b614730c8c8dfc87bd7198762ad105c3041c0c78187bfc2aaa2aad9e61904cba

SHA512
474f3d006166f98c75891e4bd6ac8daac302675eb14ef9e35c7057d7515a9a9046d2b141066e9daa51dcef21ba2ed458e2fc5655ade41d9a0fd21240d3148574

Download Submit
memory/824-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/824-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/824-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3864-17-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/3864-21-0x0000000000640000-0x0000000000646000-memory.dmp

Filesize
24KB

Download