2f42c597b548524693cc9e0447abcb14c02993b87def953289339986db43acfd

Analysis

max time kernel
150s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20/02/2024, 03:24

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General

Target

2024-02-20_14521dae4976dc2c684da4cb2d4a032f_cryptolocker.exe
Size

125KB
MD5

14521dae4976dc2c684da4cb2d4a032f
SHA1

9936016d8a65b828a312cf2da031c611731a9689
SHA256

2f42c597b548524693cc9e0447abcb14c02993b87def953289339986db43acfd
SHA512

174b18f3a23b40879867af8622f8792d27bdb0d6e66b77ba43bbe94aed386c8ff8ceeed8a51da60ca1699064c24004c3e77843dec1ecb4b7439f9c8729633d5f
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxGBph:vCA9OtEvwDpjd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231ff-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231ff-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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	2024-02-20_14521dae4976dc2c684da4cb2d4a032f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3028	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 1880 wrote to memory of 3028	1880	2024-02-20_14521dae4976dc2c684da4cb2d4a032f_cryptolocker.exe	82
PID 1880 wrote to memory of 3028	1880	2024-02-20_14521dae4976dc2c684da4cb2d4a032f_cryptolocker.exe	82
PID 1880 wrote to memory of 3028	1880	2024-02-20_14521dae4976dc2c684da4cb2d4a032f_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-02-20_14521dae4976dc2c684da4cb2d4a032f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_14521dae4976dc2c684da4cb2d4a032f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1880
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3028

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
125KB

MD5
a018e3b581bcf0ce092ab7bc6e07e79b

SHA1
f21210274fd2f440b3ad4471950dce0221f00f9f

SHA256
a94a6226775e6998672ae42dce9ef4dbcbffbddae12f389a8b0b2f61b036279c

SHA512
bd231d586e069e834b8a4679cbdc70769ac9b487bb436aa6cca9381b55961f3bc91e03fc0aa44fa34b1aa3ef0911ed782d04612f2c091b753cba075f5337b17f

Download Submit
memory/1880-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1880-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1880-2-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/3028-17-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/3028-19-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download