cryptolocker | a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72

General

Target

a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72.exe
Size

692KB
MD5

bc11c93f1b6dc74bf4804a35b34d9267
SHA1

a18c25ed1282f56225d21c6460ffaaf16ae0d965
SHA256

a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72
SHA512

c1e29195cd7ec50ae233318dcd149a6430fae3feb1f049c75083ee8879ea4733a09a985325d8448661d0c59a0a509ce9baaab174cb114d6ba2f908f63c819521
SSDEEP

12288:GebREpUV8gO1Axt4Kkp7vSCfnuf9Ooj0N:ZbepUV8gOit4KW79aOoQ

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

1764 {34184A33-0407-212E-3320-09040709E2C2}.exe
740 {34184A33-0407-212E-3320-09040709E2C2}.exe
Deletes itself 1 IoCs

Processes:

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

pid process

1764 {34184A33-0407-212E-3320-09040709E2C2}.exe

pid	process
1764	{34184A33-0407-212E-3320-09040709E2C2}.exe
740	{34184A33-0407-212E-3320-09040709E2C2}.exe

pid	process
1764	{34184A33-0407-212E-3320-09040709E2C2}.exe

Loads dropped DLL 2 IoCs

Processes:

a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72.exe

pid	process
1272	a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72.exe
1272	a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72.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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run	{34184A33-0407-212E-3320-09040709E2C2}.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\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 8 IoCs

Processes:

a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72.exe{34184A33-0407-212E-3320-09040709E2C2}.exe

description	pid	process	target process
PID 1272 wrote to memory of 1764	1272	a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72.exe	{34184A33-0407-212E-3320-09040709E2C2}.exe
PID 1272 wrote to memory of 1764	1272	a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72.exe	{34184A33-0407-212E-3320-09040709E2C2}.exe
PID 1272 wrote to memory of 1764	1272	a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72.exe	{34184A33-0407-212E-3320-09040709E2C2}.exe
PID 1272 wrote to memory of 1764	1272	a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72.exe	{34184A33-0407-212E-3320-09040709E2C2}.exe
PID 1764 wrote to memory of 740	1764	{34184A33-0407-212E-3320-09040709E2C2}.exe	{34184A33-0407-212E-3320-09040709E2C2}.exe
PID 1764 wrote to memory of 740	1764	{34184A33-0407-212E-3320-09040709E2C2}.exe	{34184A33-0407-212E-3320-09040709E2C2}.exe
PID 1764 wrote to memory of 740	1764	{34184A33-0407-212E-3320-09040709E2C2}.exe	{34184A33-0407-212E-3320-09040709E2C2}.exe
PID 1764 wrote to memory of 740	1764	{34184A33-0407-212E-3320-09040709E2C2}.exe	{34184A33-0407-212E-3320-09040709E2C2}.exe

C:\Users\Admin\AppData\Local\Temp\a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72.exe
"C:\Users\Admin\AppData\Local\Temp\a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1272
- 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\a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72.exe"
  2⤵
  - Executes dropped EXE
  - Deletes itself
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1764
- - 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
    PID:740

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

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Downloads

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

Filesize
692KB

MD5
bc11c93f1b6dc74bf4804a35b34d9267

SHA1
a18c25ed1282f56225d21c6460ffaaf16ae0d965

SHA256
a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72

SHA512
c1e29195cd7ec50ae233318dcd149a6430fae3feb1f049c75083ee8879ea4733a09a985325d8448661d0c59a0a509ce9baaab174cb114d6ba2f908f63c819521

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

Filesize
692KB

MD5
bc11c93f1b6dc74bf4804a35b34d9267

SHA1
a18c25ed1282f56225d21c6460ffaaf16ae0d965

SHA256
a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72

SHA512
c1e29195cd7ec50ae233318dcd149a6430fae3feb1f049c75083ee8879ea4733a09a985325d8448661d0c59a0a509ce9baaab174cb114d6ba2f908f63c819521

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

Filesize
692KB

MD5
bc11c93f1b6dc74bf4804a35b34d9267

SHA1
a18c25ed1282f56225d21c6460ffaaf16ae0d965

SHA256
a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72

SHA512
c1e29195cd7ec50ae233318dcd149a6430fae3feb1f049c75083ee8879ea4733a09a985325d8448661d0c59a0a509ce9baaab174cb114d6ba2f908f63c819521

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

Filesize
692KB

MD5
bc11c93f1b6dc74bf4804a35b34d9267

SHA1
a18c25ed1282f56225d21c6460ffaaf16ae0d965

SHA256
a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72

SHA512
c1e29195cd7ec50ae233318dcd149a6430fae3feb1f049c75083ee8879ea4733a09a985325d8448661d0c59a0a509ce9baaab174cb114d6ba2f908f63c819521

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

Filesize
692KB

MD5
bc11c93f1b6dc74bf4804a35b34d9267

SHA1
a18c25ed1282f56225d21c6460ffaaf16ae0d965

SHA256
a2bc3059283d7cc7bc574ce32cb6b8bfd27e02ac3810a21bd3a9b84c17f18a72

SHA512
c1e29195cd7ec50ae233318dcd149a6430fae3feb1f049c75083ee8879ea4733a09a985325d8448661d0c59a0a509ce9baaab174cb114d6ba2f908f63c819521

Download Submit
memory/740-67-0x0000000000000000-mapping.dmp

Download
memory/740-70-0x0000000000400000-0x00000000004D6000-memory.dmp

Filesize
856KB

Download
memory/1272-54-0x0000000075931000-0x0000000075933000-memory.dmp

Filesize
8KB

Download
memory/1272-55-0x0000000000400000-0x00000000004D6000-memory.dmp

Filesize
856KB

Download
memory/1764-60-0x0000000000000000-mapping.dmp

Download
memory/1764-63-0x0000000000400000-0x00000000004D6000-memory.dmp

Filesize
856KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads