2a9fc9e7f071cf0056ab5030b760636a927881290216e9f0dac74416ad713981

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11/03/2024, 14:32

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General

Target

2024-03-11_7e3aa351a977212a5f4c5842c3d24376_cryptolocker.exe
Size

126KB
MD5

7e3aa351a977212a5f4c5842c3d24376
SHA1

e3a9e1ca77d8b75d991f701b837ddec04826618d
SHA256

2a9fc9e7f071cf0056ab5030b760636a927881290216e9f0dac74416ad713981
SHA512

c09aa87dc367fcfbaa88e2753deff453424d9af9b0030bb6f7b25df19739166da2aae26bfa51952f8dbae8e60ae154d2e105edc8bf87b03b68720224bc4c2844
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxGBpn:vCA9OtEvwDpjr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0004000000022747-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0004000000022747-12.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-1-5-21-2727153400-192325109-1870347593-1000\Control Panel\International\Geo\Nation	2024-03-11_7e3aa351a977212a5f4c5842c3d24376_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4308	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 3360 wrote to memory of 4308	3360	2024-03-11_7e3aa351a977212a5f4c5842c3d24376_cryptolocker.exe	93
PID 3360 wrote to memory of 4308	3360	2024-03-11_7e3aa351a977212a5f4c5842c3d24376_cryptolocker.exe	93
PID 3360 wrote to memory of 4308	3360	2024-03-11_7e3aa351a977212a5f4c5842c3d24376_cryptolocker.exe	93

C:\Users\Admin\AppData\Local\Temp\2024-03-11_7e3aa351a977212a5f4c5842c3d24376_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-11_7e3aa351a977212a5f4c5842c3d24376_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3360
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4308

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
126KB

MD5
d50037e162fc8a84f44da16b93814806

SHA1
8f58cb16f76baf41e4ce7b107a8aedb4f3c237a1

SHA256
919ba7ca83c3096ea6e5f71cefa847f5484942cadbbdda28dc3f0cfae80d2aa3

SHA512
0bf7b1da8078d5d001f57276457dad8a70ee6f7c478f8dde50245a4bf064d7639aae6784a5eecc85d73d0c0cd6edc25483d35faeafe70df4847000273c0b9b17

Download Submit
memory/3360-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3360-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3360-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download