af4c4a6f177d4e1cdbcffd0eba2589ca83c33c9745531ea57c802224a788a40a

Analysis

max time kernel
151s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23/02/2024, 19:25

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General

Target

2024-02-23_007cb19c736ee31bf0b12b96454c18a9_cryptolocker.exe
Size

386KB
MD5

007cb19c736ee31bf0b12b96454c18a9
SHA1

f66dea71f8a45f5f3a839fab1439deac8dc72a03
SHA256

af4c4a6f177d4e1cdbcffd0eba2589ca83c33c9745531ea57c802224a788a40a
SHA512

b33519cf8c49bae6ca98f2d8e1dc4551b143037a712acf176b4c404732e7ef9c4690b2b280ae6fbb69126c270793de39a36a972bae126a5f4a7fa9eefd8ef92d
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzX3:nnOflT/ZFIjBz3xjTxynGUOUhX3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 2 IoCs

resource	yara_rule
behavioral2/files/0x000600000002310d-12.dat	CryptoLocker_rule2
behavioral2/files/0x000600000002310d-15.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-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	2024-02-23_007cb19c736ee31bf0b12b96454c18a9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3596	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 4000 wrote to memory of 3596	4000	2024-02-23_007cb19c736ee31bf0b12b96454c18a9_cryptolocker.exe	85
PID 4000 wrote to memory of 3596	4000	2024-02-23_007cb19c736ee31bf0b12b96454c18a9_cryptolocker.exe	85
PID 4000 wrote to memory of 3596	4000	2024-02-23_007cb19c736ee31bf0b12b96454c18a9_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-23_007cb19c736ee31bf0b12b96454c18a9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_007cb19c736ee31bf0b12b96454c18a9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4000
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3596

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
284KB

MD5
436ac649795390fc01c73a6e81aadf88

SHA1
c883946f7c0c6a9a2728f4c8ce31750885afeb23

SHA256
16de7ea286f1bef1a626818a556104d831d576dd390f354873d52a6799d2c0a5

SHA512
2fd742b50a188b57b39c5529f39cd157380a5fc53a7f394e505c7dbf40e4d1be0d826ccb31e56cd7b16ab55d7deeb2a2bfa437f6b4626f0e5cc675814d628fe4

Download Submit
C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
386KB

MD5
f032f308a17fb8abeac9df1010a57c7c

SHA1
98bca4aa85cdb5d037581a49368d49311e7f2a7d

SHA256
f4b0130dc1ba3250c44a85db13b636a6cb5d784a815cab913e7d8bcc6dd9e825

SHA512
1f2d30fd3edca2f8ed3ce1c8254a41c347190f69cdba9f170195fba371bad83de65f306dff8a13b290ebb2485f73ec915b14e7bf3d43eac1d15fa6d1a1f0a8a6

Download Submit
memory/3596-17-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/3596-18-0x0000000000720000-0x0000000000726000-memory.dmp

Filesize
24KB

Download
memory/4000-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/4000-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/4000-2-0x0000000002400000-0x0000000002406000-memory.dmp

Filesize
24KB

Download