3d336f8d96bb17003bc67a7ffdcd6fb420b0a493e0020f8b3ce41c1939345864

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
16/04/2024, 16:37

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General

Target

2024-04-16_ae1a15991c332467a7f312c55d1381e9_cryptolocker.exe
Size

83KB
MD5

ae1a15991c332467a7f312c55d1381e9
SHA1

187ccbc0b0d715c617782ed860549c72b0a3f49e
SHA256

3d336f8d96bb17003bc67a7ffdcd6fb420b0a493e0020f8b3ce41c1939345864
SHA512

d75c0c736d1b3838da1e666e4b7cb24f3152390d6e90df3ebe290dd5f72edc033c1ec681b2c5f111bf2fd4640b67e2798da0dc4b85b93fc2710da5c1579bf545
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrCU:TCjsIOtEvwDpj5HE/OUHnSMJ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/1308-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000a0000000233e4-13.dat	CryptoLocker_rule2
behavioral2/memory/1308-18-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2916-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/1308-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000a0000000233e4-13.dat	CryptoLocker_set1
behavioral2/memory/1308-18-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2916-25-0x0000000000500000-0x000000000050E000-memory.dmp	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-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	2024-04-16_ae1a15991c332467a7f312c55d1381e9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2916	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 1308 wrote to memory of 2916	1308	2024-04-16_ae1a15991c332467a7f312c55d1381e9_cryptolocker.exe	86
PID 1308 wrote to memory of 2916	1308	2024-04-16_ae1a15991c332467a7f312c55d1381e9_cryptolocker.exe	86
PID 1308 wrote to memory of 2916	1308	2024-04-16_ae1a15991c332467a7f312c55d1381e9_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-16_ae1a15991c332467a7f312c55d1381e9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-16_ae1a15991c332467a7f312c55d1381e9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1308
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2916

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
83KB

MD5
e35ce1d1b97f4e1ebf4d5f1ad9dc826b

SHA1
c26290b387044920203c12aea425d0eb1864c067

SHA256
652694281f178971e9f420d37d5fc599af8aab64aae96a628356c98b5dcad8bd

SHA512
6cf4869c4876218b478bbe4287f4a1fe6637ca6da8cc7847713b9112f213ae859cd7724fc9a555e2d13edf2e46b5653d5a35dec4aaa7536df54c03164dd6c968

Download Submit
memory/1308-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1308-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1308-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1308-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1308-18-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2916-19-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/2916-25-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download