bd265145cd1381c34d366e1553c163b44363338067721483f031b7efdf050173

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
17/02/2024, 05:53

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General

Target

2024-02-17_e2107da448169317ac6545186529679b_cryptolocker.exe
Size

44KB
MD5

e2107da448169317ac6545186529679b
SHA1

13e3a953acb04d95a8f3c9c182824534c6d55132
SHA256

bd265145cd1381c34d366e1553c163b44363338067721483f031b7efdf050173
SHA512

20ce12e77982136f1d2075cc52e647f2a43f422884ff733bf81a1cf581e9f2a4fb37f4b05c2b789f3a5524d360732ef61aee2b71a935172a78026db2a077a560
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu556yPh:X6QFElP6n+gJQMOtEvwDpjB0GIWvPh

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023212-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023212-12.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	2024-02-17_e2107da448169317ac6545186529679b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3316	asih.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 4328 wrote to memory of 3316	4328	2024-02-17_e2107da448169317ac6545186529679b_cryptolocker.exe	84
PID 4328 wrote to memory of 3316	4328	2024-02-17_e2107da448169317ac6545186529679b_cryptolocker.exe	84
PID 4328 wrote to memory of 3316	4328	2024-02-17_e2107da448169317ac6545186529679b_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-17_e2107da448169317ac6545186529679b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_e2107da448169317ac6545186529679b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4328
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3316

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\asih.exe

Filesize
44KB

MD5
e90b4a8113396bc9c9ef86a5b5050cd2

SHA1
534c7d2af2a94752616289f9b540c178a4981f29

SHA256
f5cdd4bae96add7a5c0c7dd93b4ecfb67956e124c0f35f28fe4c093acd0b443a

SHA512
ac5521a0e7f9eaacd2b429f5f2d1063e36d984ab329c97833bffe71716d0a8a2fb70f0709fae5f73d434645e9f7a7d984fc2f3cb704c51cbd67fb972a87e2d8b

Download Submit
memory/3316-17-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/3316-23-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4328-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4328-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4328-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download