cryptolocker | 1252be9ca40aa403368ea3274513149298efdf11be7f9c5dca0c3059a1ec2808

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-01-2025 05:04

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General

Target

JaffaCakes118_482bce90822118e08614da9994d5c7e6.exe
Size

356KB
MD5

482bce90822118e08614da9994d5c7e6
SHA1

ed34387b47a85e1b8d522560ab1194503a020578
SHA256

1252be9ca40aa403368ea3274513149298efdf11be7f9c5dca0c3059a1ec2808
SHA512

779370e9de624f3697dde973afbc224094b539053b3212218e4e8dfd3c8c43bba407839984b4fa3118b03df9a112c935b288be5880d1936bd4f8b3fc0b31cf88
SSDEEP

6144:DWmw0EuC10p1NA4TV5nhWgTO3x5N22vWvLRKKAX5l++ZyLRC:DWkEuCShA4TV5nhT85I2vCMX5l+ag

Score

10^/10

cryptolocker discovery persistence ransomware

Malware Config

Signatures

CryptoLocker
Ransomware family with multiple variants.
ransomware cryptolocker
Cryptolocker family
cryptolocker

Deletes itself 1 IoCs

pid	Process
2360	{34184A33-0407-212E-3320-09040709E2C2}.exe

Executes dropped EXE 2 IoCs

pid	Process
2360	{34184A33-0407-212E-3320-09040709E2C2}.exe
2408	{34184A33-0407-212E-3320-09040709E2C2}.exe

Loads dropped DLL 2 IoCs

pid	Process
2096	JaffaCakes118_482bce90822118e08614da9994d5c7e6.exe
2360	{34184A33-0407-212E-3320-09040709E2C2}.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\CryptoLocker = "C:\\Users\\Admin\\AppData\\Roaming\\{34184A33-0407-212E-3320-09040709E2C2}.exe"	{34184A33-0407-212E-3320-09040709E2C2}.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_482bce90822118e08614da9994d5c7e6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{34184A33-0407-212E-3320-09040709E2C2}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{34184A33-0407-212E-3320-09040709E2C2}.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 2360	2096	JaffaCakes118_482bce90822118e08614da9994d5c7e6.exe	31
PID 2096 wrote to memory of 2360	2096	JaffaCakes118_482bce90822118e08614da9994d5c7e6.exe	31
PID 2096 wrote to memory of 2360	2096	JaffaCakes118_482bce90822118e08614da9994d5c7e6.exe	31
PID 2096 wrote to memory of 2360	2096	JaffaCakes118_482bce90822118e08614da9994d5c7e6.exe	31
PID 2360 wrote to memory of 2408	2360	{34184A33-0407-212E-3320-09040709E2C2}.exe	32
PID 2360 wrote to memory of 2408	2360	{34184A33-0407-212E-3320-09040709E2C2}.exe	32
PID 2360 wrote to memory of 2408	2360	{34184A33-0407-212E-3320-09040709E2C2}.exe	32
PID 2360 wrote to memory of 2408	2360	{34184A33-0407-212E-3320-09040709E2C2}.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_482bce90822118e08614da9994d5c7e6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_482bce90822118e08614da9994d5c7e6.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2096
- 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\JaffaCakes118_482bce90822118e08614da9994d5c7e6.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2360
- - C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe
    "C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe" /w000000C8
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2408

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
356KB

MD5
482bce90822118e08614da9994d5c7e6

SHA1
ed34387b47a85e1b8d522560ab1194503a020578

SHA256
1252be9ca40aa403368ea3274513149298efdf11be7f9c5dca0c3059a1ec2808

SHA512
779370e9de624f3697dde973afbc224094b539053b3212218e4e8dfd3c8c43bba407839984b4fa3118b03df9a112c935b288be5880d1936bd4f8b3fc0b31cf88

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads