3168ff6ccd5f0672447b7eace51a47fbb9f29f83c605861e1e807a2ce064fbcb

Analysis

max time kernel
142s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18-02-2024 11:38

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General

Target

2024-02-18_52e717236510ccd1493796aefdb1bdfa_cryptolocker.exe
Size

76KB
MD5

52e717236510ccd1493796aefdb1bdfa
SHA1

7240977da948bd5d754d98d24864de89a9b6b85e
SHA256

3168ff6ccd5f0672447b7eace51a47fbb9f29f83c605861e1e807a2ce064fbcb
SHA512

dd38c3cc30c868d26de1b54058f39c2cfe8b5165830c9e508e2ac8556f980679bacd3ae392e884b5b8c2f2238c7892f71c910bca7ad78fcb8866fefd46725890
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIufc:vCjsIOtEvwDpj5H9YvQd2Y

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023207-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023207-12.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	2024-02-18_52e717236510ccd1493796aefdb1bdfa_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4376	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 4476 wrote to memory of 4376	4476	2024-02-18_52e717236510ccd1493796aefdb1bdfa_cryptolocker.exe	84
PID 4476 wrote to memory of 4376	4476	2024-02-18_52e717236510ccd1493796aefdb1bdfa_cryptolocker.exe	84
PID 4476 wrote to memory of 4376	4476	2024-02-18_52e717236510ccd1493796aefdb1bdfa_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-18_52e717236510ccd1493796aefdb1bdfa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_52e717236510ccd1493796aefdb1bdfa_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4476
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4376

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
76KB

MD5
a9956f7b36b1875d0c8be18b0eaec7a0

SHA1
bc6c1d14215cb09a5f784c2f26ee734e9526b093

SHA256
2ec65979597a60a4cb606239bada9a8fd0ff92ad863998069c3422241af8954e

SHA512
d2d77d97854d279bb2d25f109080f45908cdfc4e84c6a753536d8a10c5cb56e3e8da1d3a7f12bb39a6a4550d2c643d3d165271f83f9389f01c47e89046ab148a

Download Submit
memory/4376-17-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/4376-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4476-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4476-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4476-2-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download