26c58ecb093ce166d04ce906b2b021a2d4a631633fba61462eb95bf64edb1f15

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12/03/2024, 02:02

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General

Target

2024-03-12_f272313198cbb48ddf138d99a1b777a4_cryptolocker.exe
Size

37KB
MD5

f272313198cbb48ddf138d99a1b777a4
SHA1

a566ebc24d5d0d2cb19702fe8cb0e8483f0601e6
SHA256

26c58ecb093ce166d04ce906b2b021a2d4a631633fba61462eb95bf64edb1f15
SHA512

465142a20b4d5b84fdda206b744c10184aead3a53df783f07551811b0c539dcea4abe442fd63f4143398749a772fa5df2ccb28d0292a335e770d8e9f65b067f5
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeJAso:ZzFbxmLPWQMOtEvwDpjLeJAso

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001e59e-13.dat	CryptoLocker_rule2

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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-03-12_f272313198cbb48ddf138d99a1b777a4_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4296	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 432 wrote to memory of 4296	432	2024-03-12_f272313198cbb48ddf138d99a1b777a4_cryptolocker.exe	87
PID 432 wrote to memory of 4296	432	2024-03-12_f272313198cbb48ddf138d99a1b777a4_cryptolocker.exe	87
PID 432 wrote to memory of 4296	432	2024-03-12_f272313198cbb48ddf138d99a1b777a4_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-03-12_f272313198cbb48ddf138d99a1b777a4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_f272313198cbb48ddf138d99a1b777a4_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:432
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4296

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
37KB

MD5
4969194a05c912f2f05cfa921c867e21

SHA1
96c0b1ec6eb03c3aef37e1a7badcecced93964de

SHA256
e49fa2717c1eb06823aeab798a1166ad7084be1330ac19ebb9bfd2f624b3fb00

SHA512
059b36ee20d13ddcf9c55165953c6c0a6c3ddd08d8bd57519ec437b9867d19fce689198ed81802e1a688e267dbb47843ca0aab6ee1604cd27eab9d93c3770745

Download Submit
memory/432-0-0x0000000000450000-0x0000000000453000-memory.dmp

Filesize
12KB

Download
memory/432-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/432-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/432-3-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/432-17-0x0000000000450000-0x0000000000453000-memory.dmp

Filesize
12KB

Download
memory/4296-18-0x0000000000450000-0x0000000000460000-memory.dmp

Filesize
64KB

Download
memory/4296-20-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/4296-26-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/4296-27-0x0000000000450000-0x0000000000460000-memory.dmp

Filesize
64KB

Download