0acc1f279b443528824db3db97d0cabf90c227e30ed9b3f6d52bb46100bf107a

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
28-04-2024 20:22

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General

Target

2024-04-28_0c3afac38859e3091f663f473731809e_cryptolocker.exe
Size

42KB
MD5

0c3afac38859e3091f663f473731809e
SHA1

d022f2a99bd3560f36a4060623c54f96b80390c7
SHA256

0acc1f279b443528824db3db97d0cabf90c227e30ed9b3f6d52bb46100bf107a
SHA512

96c112ba6942bd18d828869ab8ba89442c6cdc69882df929855723662c2a4be7a2a2643803c6b85f167f6eeabacd184a6f5c7c8f73aa17fbff3e09ea67557836
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66TM0:vj+jsMQMOtEvwDpj5HW5sF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b5e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b5e-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-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	2024-04-28_0c3afac38859e3091f663f473731809e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1792	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 1108 wrote to memory of 1792	1108	2024-04-28_0c3afac38859e3091f663f473731809e_cryptolocker.exe	84
PID 1108 wrote to memory of 1792	1108	2024-04-28_0c3afac38859e3091f663f473731809e_cryptolocker.exe	84
PID 1108 wrote to memory of 1792	1108	2024-04-28_0c3afac38859e3091f663f473731809e_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-04-28_0c3afac38859e3091f663f473731809e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-28_0c3afac38859e3091f663f473731809e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1108
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1792

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
42KB

MD5
4ac1a82d727ceb62109c8dec4b901765

SHA1
12f0cd08a76e2540bb6dc28e021e6aab0082fe04

SHA256
cd58748bf6b6f733e2d9779613e6d2365e7412a2d23c7eb146aeb76643f65500

SHA512
0161cc10443e31c40bc9926a86fab601dca0afa61e12cca1a64c6b3de30186ee79bd9efa5c6d8c6e2747a347dc720ab68faa502b788d7bacf37e1aa378e0c79e

Download Submit
memory/1108-0-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/1108-1-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/1108-8-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/1792-17-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/1792-23-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download