d305557ed042fad89c146ad41049b60f662b520d8fe56e7be6024891a92c97de

Analysis

max time kernel
146s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
27/01/2024, 15:24

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General

Target

2024-01-27_1b6647acc53d46afbd350350e4a5aca0_cryptolocker.exe
Size

83KB
MD5

1b6647acc53d46afbd350350e4a5aca0
SHA1

ebf31bcbde96c54f887dfb1673575fa4002e3f2d
SHA256

d305557ed042fad89c146ad41049b60f662b520d8fe56e7be6024891a92c97de
SHA512

b041640eaf4bfd1d36c3e12ca13314b3ed60112bca3be5d8a782eb7e119f4d4422e9fbb34bd0404f2b7ababda834a2013eb0d0fadecbfcc484b1693659e1405d
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVNlVSL8z:V6a+pOtEvwDpjvpV

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000022480-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000022480-12.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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-01-27_1b6647acc53d46afbd350350e4a5aca0_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3160	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 2396 wrote to memory of 3160	2396	2024-01-27_1b6647acc53d46afbd350350e4a5aca0_cryptolocker.exe	88
PID 2396 wrote to memory of 3160	2396	2024-01-27_1b6647acc53d46afbd350350e4a5aca0_cryptolocker.exe	88
PID 2396 wrote to memory of 3160	2396	2024-01-27_1b6647acc53d46afbd350350e4a5aca0_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-27_1b6647acc53d46afbd350350e4a5aca0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_1b6647acc53d46afbd350350e4a5aca0_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3160

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
83KB

MD5
09252e5575b317ea0fc771c4420bb419

SHA1
a4203143063683ff76ce9dd0522b865a8c650a71

SHA256
3c6384e249798d0ba63bf39f3ecbe8395ac7cf66016b8b5abc94a445597101fe

SHA512
330a5d439d56839d6cbd5dd73a0bee99072e5d13ae1e55872251250d5c0ee1e55fcdcd07d42de699c61b217a1670a62fcfd67168d611072bccb14a92f8c0eb76

Download Submit
memory/2396-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2396-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2396-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3160-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3160-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download