cryptolocker | 931708bffa6eed76585c166a080ea6b544f32951cb5dbc2d2065088ee9ebad95

Analysis

max time kernel
184s
max time network
190s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2022 16:49

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General

Target

931708bffa6eed76585c166a080ea6b544f32951cb5dbc2d2065088ee9ebad95.exe
Size

733KB
MD5

31a09770fea2d2ad58709b9a2f0e78c1
SHA1

52236081902e7b6de16baf141ffb518a6cba4691
SHA256

931708bffa6eed76585c166a080ea6b544f32951cb5dbc2d2065088ee9ebad95
SHA512

3972210025332a87df980513a3223abfd354be22be149bdaef7294b2a6d0ac2cf144120074cbb5b78ab393f0201026ec90fb46ba3b2b7f141738920d66a387de
SSDEEP

12288:0wThSCGHciZYJgDCVcEBQFpC5udlV3kbxZyNccd6/:06hQHnKxBEpC56V0b3yev

Score

10^/10

cryptolocker persistence ransomware

Malware Config

Signatures

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

Processes:

Wawbmdknpbal.exeWawbmdknpbal.exe

pid process

4904 Wawbmdknpbal.exe
216 Wawbmdknpbal.exe

pid	process
4904	Wawbmdknpbal.exe
216	Wawbmdknpbal.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Wawbmdknpbal.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run	Wawbmdknpbal.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CryptoLocker = "C:\\Users\\Admin\\AppData\\Roaming\\Wawbmdknpbal.exe"	Wawbmdknpbal.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	Wawbmdknpbal.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\*CryptoLocker = "C:\\Users\\Admin\\AppData\\Roaming\\Wawbmdknpbal.exe"	Wawbmdknpbal.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

931708bffa6eed76585c166a080ea6b544f32951cb5dbc2d2065088ee9ebad95.exeWawbmdknpbal.exe

description	pid	process	target process
PID 816 wrote to memory of 4904	816	931708bffa6eed76585c166a080ea6b544f32951cb5dbc2d2065088ee9ebad95.exe	Wawbmdknpbal.exe
PID 816 wrote to memory of 4904	816	931708bffa6eed76585c166a080ea6b544f32951cb5dbc2d2065088ee9ebad95.exe	Wawbmdknpbal.exe
PID 816 wrote to memory of 4904	816	931708bffa6eed76585c166a080ea6b544f32951cb5dbc2d2065088ee9ebad95.exe	Wawbmdknpbal.exe
PID 4904 wrote to memory of 216	4904	Wawbmdknpbal.exe	Wawbmdknpbal.exe
PID 4904 wrote to memory of 216	4904	Wawbmdknpbal.exe	Wawbmdknpbal.exe
PID 4904 wrote to memory of 216	4904	Wawbmdknpbal.exe	Wawbmdknpbal.exe

C:\Users\Admin\AppData\Local\Temp\931708bffa6eed76585c166a080ea6b544f32951cb5dbc2d2065088ee9ebad95.exe
"C:\Users\Admin\AppData\Local\Temp\931708bffa6eed76585c166a080ea6b544f32951cb5dbc2d2065088ee9ebad95.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:816
- C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe
  "C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe" "/rC:\Users\Admin\AppData\Local\Temp\931708bffa6eed76585c166a080ea6b544f32951cb5dbc2d2065088ee9ebad95.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4904
- - C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe
    "C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe" /w0000024C
    3⤵
    - Executes dropped EXE
    PID:216

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe

Filesize
733KB

MD5
31a09770fea2d2ad58709b9a2f0e78c1

SHA1
52236081902e7b6de16baf141ffb518a6cba4691

SHA256
931708bffa6eed76585c166a080ea6b544f32951cb5dbc2d2065088ee9ebad95

SHA512
3972210025332a87df980513a3223abfd354be22be149bdaef7294b2a6d0ac2cf144120074cbb5b78ab393f0201026ec90fb46ba3b2b7f141738920d66a387de

Download Submit
C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe

Filesize
733KB

MD5
31a09770fea2d2ad58709b9a2f0e78c1

SHA1
52236081902e7b6de16baf141ffb518a6cba4691

SHA256
931708bffa6eed76585c166a080ea6b544f32951cb5dbc2d2065088ee9ebad95

SHA512
3972210025332a87df980513a3223abfd354be22be149bdaef7294b2a6d0ac2cf144120074cbb5b78ab393f0201026ec90fb46ba3b2b7f141738920d66a387de

Download Submit
C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe

Filesize
733KB

MD5
31a09770fea2d2ad58709b9a2f0e78c1

SHA1
52236081902e7b6de16baf141ffb518a6cba4691

SHA256
931708bffa6eed76585c166a080ea6b544f32951cb5dbc2d2065088ee9ebad95

SHA512
3972210025332a87df980513a3223abfd354be22be149bdaef7294b2a6d0ac2cf144120074cbb5b78ab393f0201026ec90fb46ba3b2b7f141738920d66a387de

Download Submit
memory/216-141-0x0000000000000000-mapping.dmp

Download
memory/216-143-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/816-132-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/4904-135-0x0000000000000000-mapping.dmp

Download
memory/4904-138-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download