7fed23d9d25a1e52b169838951c0392ace2f3245ca396438e62f1234db23930e

Analysis

max time kernel
0s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
18/01/2024, 23:34

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General

Target

2024-01-18_f3f5584afbdee30970ad0079aae48bd9_cryptolocker.exe
Size

88KB
MD5

f3f5584afbdee30970ad0079aae48bd9
SHA1

225ab792247b97b2138748d741925ec946e1aeca
SHA256

7fed23d9d25a1e52b169838951c0392ace2f3245ca396438e62f1234db23930e
SHA512

042908fea03210f9b21fefa96c630c12e7bb3f11c1caf1a9271aacebb7cd5b60aa4b81a42ca72b3d2bf70e1fecbbcd6a6ecc6cb1fa99b897e391bafd30297d00
SSDEEP

1536:vj+jsMQMOtEvwDpj5H8u8rBN6nqEZNi1OkQYyP:vCjsIOtEvwDpj5H8zPsf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e630-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e630-12.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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-01-18_f3f5584afbdee30970ad0079aae48bd9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2200	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 2584 wrote to memory of 2200	2584	2024-01-18_f3f5584afbdee30970ad0079aae48bd9_cryptolocker.exe	62
PID 2584 wrote to memory of 2200	2584	2024-01-18_f3f5584afbdee30970ad0079aae48bd9_cryptolocker.exe	62
PID 2584 wrote to memory of 2200	2584	2024-01-18_f3f5584afbdee30970ad0079aae48bd9_cryptolocker.exe	62

C:\Users\Admin\AppData\Local\Temp\2024-01-18_f3f5584afbdee30970ad0079aae48bd9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_f3f5584afbdee30970ad0079aae48bd9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2200

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
88KB

MD5
35049a0dce75f256b28ef1431f7240ff

SHA1
65f9a482f61e09732fcdb5b221d8c19305d35c22

SHA256
7e4568f620adb558f7e336b9a18743e4b898584cf3f09470c4659b5c12203ba5

SHA512
3ffd92a8fa6ead1d0afe300c7abdaa4d64f3fb42f040dd43c4ccb778298b0dcf1f897b2a7d5daa6b75f1391b1cb783c426e72436a163840849828c43752e4c89

Download Submit
C:\Users\Admin\AppData\Local\Temp\misids.exe

Filesize
315B

MD5
a34ac19f4afae63adc5d2f7bc970c07f

SHA1
a82190fc530c265aa40a045c21770d967f4767b8

SHA256
d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

SHA512
42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

Download Submit
memory/2200-17-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/2200-23-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2584-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2584-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2584-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download