cryptolocker | 1252be9ca40aa403368ea3274513149298efdf11be7f9c5dca0c3059a1ec2808

Analysis

max time kernel
152s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
12-10-2022 16:48

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General

Target

1252be9ca40aa403368ea3274513149298efdf11be7f9c5dca0c3059a1ec2808.exe
Size

356KB
MD5

482bce90822118e08614da9994d5c7e6
SHA1

ed34387b47a85e1b8d522560ab1194503a020578
SHA256

1252be9ca40aa403368ea3274513149298efdf11be7f9c5dca0c3059a1ec2808
SHA512

779370e9de624f3697dde973afbc224094b539053b3212218e4e8dfd3c8c43bba407839984b4fa3118b03df9a112c935b288be5880d1936bd4f8b3fc0b31cf88
SSDEEP

6144:DWmw0EuC10p1NA4TV5nhWgTO3x5N22vWvLRKKAX5l++ZyLRC:DWkEuCShA4TV5nhT85I2vCMX5l+ag

Score

10^/10

cryptolocker persistence ransomware

Malware Config

Signatures

CryptoLocker
Ransomware family with multiple variants.
ransomware cryptolocker
Executes dropped EXE 2 IoCs

Processes:

{34184A33-0407-212E-3320-09040709E2C2}.exe{34184A33-0407-212E-3320-09040709E2C2}.exe

pid process

3640 {34184A33-0407-212E-3320-09040709E2C2}.exe
4728 {34184A33-0407-212E-3320-09040709E2C2}.exe

pid	process
3640	{34184A33-0407-212E-3320-09040709E2C2}.exe
4728	{34184A33-0407-212E-3320-09040709E2C2}.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

{34184A33-0407-212E-3320-09040709E2C2}.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run	{34184A33-0407-212E-3320-09040709E2C2}.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CryptoLocker = "C:\\Users\\Admin\\AppData\\Roaming\\{34184A33-0407-212E-3320-09040709E2C2}.exe"	{34184A33-0407-212E-3320-09040709E2C2}.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

1252be9ca40aa403368ea3274513149298efdf11be7f9c5dca0c3059a1ec2808.exe{34184A33-0407-212E-3320-09040709E2C2}.exe

description	pid	process	target process
PID 4900 wrote to memory of 3640	4900	1252be9ca40aa403368ea3274513149298efdf11be7f9c5dca0c3059a1ec2808.exe	{34184A33-0407-212E-3320-09040709E2C2}.exe
PID 4900 wrote to memory of 3640	4900	1252be9ca40aa403368ea3274513149298efdf11be7f9c5dca0c3059a1ec2808.exe	{34184A33-0407-212E-3320-09040709E2C2}.exe
PID 4900 wrote to memory of 3640	4900	1252be9ca40aa403368ea3274513149298efdf11be7f9c5dca0c3059a1ec2808.exe	{34184A33-0407-212E-3320-09040709E2C2}.exe
PID 3640 wrote to memory of 4728	3640	{34184A33-0407-212E-3320-09040709E2C2}.exe	{34184A33-0407-212E-3320-09040709E2C2}.exe
PID 3640 wrote to memory of 4728	3640	{34184A33-0407-212E-3320-09040709E2C2}.exe	{34184A33-0407-212E-3320-09040709E2C2}.exe
PID 3640 wrote to memory of 4728	3640	{34184A33-0407-212E-3320-09040709E2C2}.exe	{34184A33-0407-212E-3320-09040709E2C2}.exe

C:\Users\Admin\AppData\Local\Temp\1252be9ca40aa403368ea3274513149298efdf11be7f9c5dca0c3059a1ec2808.exe
"C:\Users\Admin\AppData\Local\Temp\1252be9ca40aa403368ea3274513149298efdf11be7f9c5dca0c3059a1ec2808.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4900
- C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe
  "C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe" "/rC:\Users\Admin\AppData\Local\Temp\1252be9ca40aa403368ea3274513149298efdf11be7f9c5dca0c3059a1ec2808.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:3640
- - C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe
    "C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe" /w00000224
    3⤵
    - Executes dropped EXE
    PID:4728

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe

Filesize
356KB

MD5
482bce90822118e08614da9994d5c7e6

SHA1
ed34387b47a85e1b8d522560ab1194503a020578

SHA256
1252be9ca40aa403368ea3274513149298efdf11be7f9c5dca0c3059a1ec2808

SHA512
779370e9de624f3697dde973afbc224094b539053b3212218e4e8dfd3c8c43bba407839984b4fa3118b03df9a112c935b288be5880d1936bd4f8b3fc0b31cf88

Download Submit
C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe

Filesize
356KB

MD5
482bce90822118e08614da9994d5c7e6

SHA1
ed34387b47a85e1b8d522560ab1194503a020578

SHA256
1252be9ca40aa403368ea3274513149298efdf11be7f9c5dca0c3059a1ec2808

SHA512
779370e9de624f3697dde973afbc224094b539053b3212218e4e8dfd3c8c43bba407839984b4fa3118b03df9a112c935b288be5880d1936bd4f8b3fc0b31cf88

Download Submit
C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe

Filesize
356KB

MD5
482bce90822118e08614da9994d5c7e6

SHA1
ed34387b47a85e1b8d522560ab1194503a020578

SHA256
1252be9ca40aa403368ea3274513149298efdf11be7f9c5dca0c3059a1ec2808

SHA512
779370e9de624f3697dde973afbc224094b539053b3212218e4e8dfd3c8c43bba407839984b4fa3118b03df9a112c935b288be5880d1936bd4f8b3fc0b31cf88

Download Submit
memory/3640-132-0x0000000000000000-mapping.dmp

Download
memory/4728-135-0x0000000000000000-mapping.dmp

Download