7e8c82a2975e6278728cad7028b6f58cb56992d9783753a28221fa2d20781c16

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12-03-2024 00:28

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General

Target

2024-03-12_5119d5075e0f8b994b15bf32bf20e192_cryptolocker.exe
Size

48KB
MD5

5119d5075e0f8b994b15bf32bf20e192
SHA1

1f62c13f511220316fc058fbc4e1dc62f936b14e
SHA256

7e8c82a2975e6278728cad7028b6f58cb56992d9783753a28221fa2d20781c16
SHA512

3e96a2fbaa79528a2057490ba90e0c75b3a4d67914bcb52111b7bbd4087cd4291576a6ff7bff85d3c108a371c8a434e31c78d2bccec939ea0fbb8442125ae6b2
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4UKn7yXYJmWO:bIDOw9a0DwitDTkO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.dat	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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-03-12_5119d5075e0f8b994b15bf32bf20e192_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4652	lossy.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 884 wrote to memory of 4652	884	2024-03-12_5119d5075e0f8b994b15bf32bf20e192_cryptolocker.exe	88
PID 884 wrote to memory of 4652	884	2024-03-12_5119d5075e0f8b994b15bf32bf20e192_cryptolocker.exe	88
PID 884 wrote to memory of 4652	884	2024-03-12_5119d5075e0f8b994b15bf32bf20e192_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-12_5119d5075e0f8b994b15bf32bf20e192_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_5119d5075e0f8b994b15bf32bf20e192_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:884
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:4652

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\lossy.exe

Filesize
48KB

MD5
e933bf314ae52c4b69eef12381f5ed91

SHA1
1268a13d7e3238d86283b0b7b3e877eb097027cd

SHA256
b19b3a6a259b78dd05d7546dfa6bf3ff83c345cf27cd919d05adc686a50df44c

SHA512
6b5b7ef16ada393f897785af9b25e866497db017ae38baa23dc9c6d05d4635af7fcc4ef8161a468389759abe79c906526be1352795a32d7b598481d08b663da6

Download Submit
memory/884-0-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/884-1-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/884-2-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download
memory/4652-17-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/4652-18-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download