cryptolocker | 6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c

General

Target

6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exe
Size

360KB
MD5

354f7ec15741db7fcdfe7b158c14dfaa
SHA1

1265f62cb1bf781baaf5161e8b2fcd40a4026747
SHA256

6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c
SHA512

c8425a333a0aa7cb916406b825baaba2e462a81dcfc64b725dceadd81163f8928463603f70e6d5c354dd0ad59e4ed74572bcd780957d947bfa9d97ae89477227

Score

10^/10

cryptolocker persistence ransomware suricata

Malware Config

Signatures

CryptoLocker
Ransomware family with multiple variants.
ransomware cryptolocker
suricata: ET MALWARE Zeus GameOver Possible DGA NXDOMAIN Responses
suricata
Executes dropped EXE 2 IoCs

Processes:

Wawbmdknpbal.exeWawbmdknpbal.exe

pid process

1216 Wawbmdknpbal.exe
1968 Wawbmdknpbal.exe
Deletes itself 1 IoCs

Processes:

Wawbmdknpbal.exe

pid process

1216 Wawbmdknpbal.exe
Loads dropped DLL 2 IoCs

Processes:

6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exeWawbmdknpbal.exe

pid process

1888 6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exe
1216 Wawbmdknpbal.exe

pid	process
1216	Wawbmdknpbal.exe
1968	Wawbmdknpbal.exe

pid	process
1216	Wawbmdknpbal.exe

pid	process
1888	6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exe
1216	Wawbmdknpbal.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Wawbmdknpbal.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\CryptoLocker = "C:\\Users\\Admin\\AppData\\Roaming\\Wawbmdknpbal.exe"	Wawbmdknpbal.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	Wawbmdknpbal.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exeWawbmdknpbal.exe

description	pid	process	target process
PID 1888 wrote to memory of 1216	1888	6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exe	Wawbmdknpbal.exe
PID 1888 wrote to memory of 1216	1888	6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exe	Wawbmdknpbal.exe
PID 1888 wrote to memory of 1216	1888	6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exe	Wawbmdknpbal.exe
PID 1888 wrote to memory of 1216	1888	6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exe	Wawbmdknpbal.exe
PID 1216 wrote to memory of 1968	1216	Wawbmdknpbal.exe	Wawbmdknpbal.exe
PID 1216 wrote to memory of 1968	1216	Wawbmdknpbal.exe	Wawbmdknpbal.exe
PID 1216 wrote to memory of 1968	1216	Wawbmdknpbal.exe	Wawbmdknpbal.exe
PID 1216 wrote to memory of 1968	1216	Wawbmdknpbal.exe	Wawbmdknpbal.exe

C:\Users\Admin\AppData\Local\Temp\6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exe
"C:\Users\Admin\AppData\Local\Temp\6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1888
- C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe
  "C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe" "/rC:\Users\Admin\AppData\Local\Temp\6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exe"
  2⤵
  - Executes dropped EXE
  - Deletes itself
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1216
- - C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe
    "C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe" /w000000D0
    3⤵
    - Executes dropped EXE
    PID:1968

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

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

MD5
354f7ec15741db7fcdfe7b158c14dfaa

SHA1
1265f62cb1bf781baaf5161e8b2fcd40a4026747

SHA256
6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c

SHA512
c8425a333a0aa7cb916406b825baaba2e462a81dcfc64b725dceadd81163f8928463603f70e6d5c354dd0ad59e4ed74572bcd780957d947bfa9d97ae89477227

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

MD5
354f7ec15741db7fcdfe7b158c14dfaa

SHA1
1265f62cb1bf781baaf5161e8b2fcd40a4026747

SHA256
6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c

SHA512
c8425a333a0aa7cb916406b825baaba2e462a81dcfc64b725dceadd81163f8928463603f70e6d5c354dd0ad59e4ed74572bcd780957d947bfa9d97ae89477227

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

MD5
354f7ec15741db7fcdfe7b158c14dfaa

SHA1
1265f62cb1bf781baaf5161e8b2fcd40a4026747

SHA256
6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c

SHA512
c8425a333a0aa7cb916406b825baaba2e462a81dcfc64b725dceadd81163f8928463603f70e6d5c354dd0ad59e4ed74572bcd780957d947bfa9d97ae89477227

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

MD5
354f7ec15741db7fcdfe7b158c14dfaa

SHA1
1265f62cb1bf781baaf5161e8b2fcd40a4026747

SHA256
6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c

SHA512
c8425a333a0aa7cb916406b825baaba2e462a81dcfc64b725dceadd81163f8928463603f70e6d5c354dd0ad59e4ed74572bcd780957d947bfa9d97ae89477227

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

MD5
354f7ec15741db7fcdfe7b158c14dfaa

SHA1
1265f62cb1bf781baaf5161e8b2fcd40a4026747

SHA256
6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c

SHA512
c8425a333a0aa7cb916406b825baaba2e462a81dcfc64b725dceadd81163f8928463603f70e6d5c354dd0ad59e4ed74572bcd780957d947bfa9d97ae89477227

Download Submit
memory/1216-62-0x0000000000000000-mapping.dmp

Download
memory/1888-60-0x0000000075161000-0x0000000075163000-memory.dmp

Filesize
8KB

Download
memory/1968-67-0x0000000000000000-mapping.dmp

Download

Analysis

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