db3503fc62fde63eba2fdfac2cf465ef0ef17e2c7c7694dd58da429e49d2e089

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22/02/2024, 00:47

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General

Target

2024-02-22_55f049f0ea45dd3fb32a70ee81039706_cryptolocker.exe
Size

385KB
MD5

55f049f0ea45dd3fb32a70ee81039706
SHA1

d141d74998f4a17c1af1752cd9f3ea61d7292e24
SHA256

db3503fc62fde63eba2fdfac2cf465ef0ef17e2c7c7694dd58da429e49d2e089
SHA512

556efc3d0d50c3f0952913b59cff279548be84b31b204417c8aef8d618e518c16c016b63c4f866cb37ecf0f42bc529a665ed2468092c8b5256ade42de9422ea4
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXn:nnOflT/ZFIjBz3xjTxynGUOUhXn

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023218-12.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-1-5-21-3316742141-2240921845-2885234760-1000\Control Panel\International\Geo\Nation	2024-02-22_55f049f0ea45dd3fb32a70ee81039706_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
884	hasfj.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 2308 wrote to memory of 884	2308	2024-02-22_55f049f0ea45dd3fb32a70ee81039706_cryptolocker.exe	85
PID 2308 wrote to memory of 884	2308	2024-02-22_55f049f0ea45dd3fb32a70ee81039706_cryptolocker.exe	85
PID 2308 wrote to memory of 884	2308	2024-02-22_55f049f0ea45dd3fb32a70ee81039706_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-22_55f049f0ea45dd3fb32a70ee81039706_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_55f049f0ea45dd3fb32a70ee81039706_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:884

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\hasfj.exe

Filesize
386KB

MD5
efc8383b159b40e93904ecf8f20fe709

SHA1
18cca575a355c0b8fea13a730a4ba3616b63cffc

SHA256
add6bd44e4c871c97035be6482e73d1b3ddcac224472cc1a93c32b315de98d9a

SHA512
b05283e7199aad7086309d4ca2854db8dafdbba34f50f8d53f50386937c7c6a7f5eb76d783efc6647245758ee87e85a1d179722a87c8b2bedd0d0fd98f89ba00

Download Submit
memory/884-17-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/884-18-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

Filesize
24KB

Download
memory/2308-0-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/2308-1-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/2308-2-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download