5ceb195c3fcb54b6893df36836d4f6fd38b53d6f515b0b6eb982c042c6929b0e

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
28/01/2024, 20:35

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General

Target

2024-01-28_ad978f376f230e7e22ebb33bd45b9080_cryptolocker.exe
Size

50KB
MD5

ad978f376f230e7e22ebb33bd45b9080
SHA1

68385529c7bbf2a3b603fa7068c1ab23e479e440
SHA256

5ceb195c3fcb54b6893df36836d4f6fd38b53d6f515b0b6eb982c042c6929b0e
SHA512

7d09915d6ef59141178605c290e5f9a18f64ef61e110b64c60c17f88ae61d0143eb0b3fa6b1e10362685e5d135a164cfc34e3456465d824c9b302179c2fcf98a
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaToguMyI:X6QFElP6n+gJBMOtEvwDpjBtEJNMJ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00060000000231b6-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00060000000231b6-12.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-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation	2024-01-28_ad978f376f230e7e22ebb33bd45b9080_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1464	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 1020 wrote to memory of 1464	1020	2024-01-28_ad978f376f230e7e22ebb33bd45b9080_cryptolocker.exe	79
PID 1020 wrote to memory of 1464	1020	2024-01-28_ad978f376f230e7e22ebb33bd45b9080_cryptolocker.exe	79
PID 1020 wrote to memory of 1464	1020	2024-01-28_ad978f376f230e7e22ebb33bd45b9080_cryptolocker.exe	79

C:\Users\Admin\AppData\Local\Temp\2024-01-28_ad978f376f230e7e22ebb33bd45b9080_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-28_ad978f376f230e7e22ebb33bd45b9080_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1020
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1464

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
50KB

MD5
712b2566c5376cb8d70413f21f422240

SHA1
9c8e49b615192a4ef909db51a53c9196854d5b1a

SHA256
7ef538af2f205440aff8941e5bc873a221377cefe7121e8b7bc594546374b5d5

SHA512
1f26800bfa666cc4901efec2cb7682316e1abb1d67bdd2afb1c089872121bb104c85e696f6a4fd61f095900018d053bce71fd7088cd90798d25fc3febd41ee07

Download Submit
memory/1020-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/1020-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/1020-2-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/1464-17-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/1464-23-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download