3a96130fe99e5dac769eb0a584b5bef62a9aee965d84db2ded68635b8369aa66

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
22/04/2024, 22:34

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General

Target

2024-04-22_be47244646470d6c4cf686d03bb03ac8_cryptolocker.exe
Size

91KB
MD5

be47244646470d6c4cf686d03bb03ac8
SHA1

952f23bbb9109fbf69eb806123b4e81efd7f306a
SHA256

3a96130fe99e5dac769eb0a584b5bef62a9aee965d84db2ded68635b8369aa66
SHA512

5faded5ecddccd6776d6359052b9216bc795067f38580fbf69c3d40f2f5603ce70038e50ffe5a59442917116766ad07816004129f826c8bff5bd952c4e3aa6af
SSDEEP

1536:vj+jsMQMOtEvwDpj5H8u8rBN6nqEZNi1OkQoOo:vCjsIOtEvwDpj5H8zPso

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e97c-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e97c-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-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	2024-04-22_be47244646470d6c4cf686d03bb03ac8_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2532	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 1176 wrote to memory of 2532	1176	2024-04-22_be47244646470d6c4cf686d03bb03ac8_cryptolocker.exe	87
PID 1176 wrote to memory of 2532	1176	2024-04-22_be47244646470d6c4cf686d03bb03ac8_cryptolocker.exe	87
PID 1176 wrote to memory of 2532	1176	2024-04-22_be47244646470d6c4cf686d03bb03ac8_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-04-22_be47244646470d6c4cf686d03bb03ac8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-22_be47244646470d6c4cf686d03bb03ac8_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1176
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2532

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
2167a290672566f3d8b7cb509b7d36e3

SHA1
6efa974cf749d34b715b7918bd2e8a317150be7f

SHA256
af87b83877ec9b8feaef125d79bbb1fbcfa6cedf4ad3c61e60a2c74d816608c2

SHA512
72958fa70b35d77cc6c0f5da81c55b3fdc42f58736918fbad9766c682e6bdd882fe079db638b8390b862c46cd146947e9ec367f4aa397794eccbd02c2e521121

Download Submit
memory/1176-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1176-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1176-2-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/2532-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download