e9535a6fc2d88256f3ca886694cffd1c52a87fa8382d8e55c364f97f94aa1e7e

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/03/2024, 01:44

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General

Target

2024-03-06_6f6a53bbe62bfd90372a386deef3a0a7_cryptolocker.exe
Size

38KB
MD5

6f6a53bbe62bfd90372a386deef3a0a7
SHA1

7be253ef688571026aab70f3ba4f7a3a310895af
SHA256

e9535a6fc2d88256f3ca886694cffd1c52a87fa8382d8e55c364f97f94aa1e7e
SHA512

27fec1357ad08ed5274d242ec55e2683da460608e0558f35edcae8afd58276dfdea45f5859bb9f8d0bfa1256e8762f795d4843ced9172718c35b1601df22f1eb
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkLHwp:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkLC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2412-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000e000000012248-11.dat	CryptoLocker_rule2
behavioral1/memory/2412-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2644-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2412-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000e000000012248-11.dat	CryptoLocker_set1
behavioral1/memory/2412-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2644-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2644	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2412	2024-03-06_6f6a53bbe62bfd90372a386deef3a0a7_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2644	2412	2024-03-06_6f6a53bbe62bfd90372a386deef3a0a7_cryptolocker.exe	28
PID 2412 wrote to memory of 2644	2412	2024-03-06_6f6a53bbe62bfd90372a386deef3a0a7_cryptolocker.exe	28
PID 2412 wrote to memory of 2644	2412	2024-03-06_6f6a53bbe62bfd90372a386deef3a0a7_cryptolocker.exe	28
PID 2412 wrote to memory of 2644	2412	2024-03-06_6f6a53bbe62bfd90372a386deef3a0a7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-06_6f6a53bbe62bfd90372a386deef3a0a7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_6f6a53bbe62bfd90372a386deef3a0a7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
39KB

MD5
5c1786b5715121ecd703e62a057874d1

SHA1
08081d911d1ae73d998ac3dedfb04ef9e93251d2

SHA256
9058ef8b98d549ba5572e8007767cf6850cb9f53231f5f90981017aad30db211

SHA512
1b69239e44657f276125db9d993f29fbe167ba75825dc611bc172948d0dc1f5280d7271985648db08043e7dbc1fff453588b08dd77a09fc41a1c554b7683701a

Download Submit
memory/2412-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2412-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2412-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2412-9-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2412-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2644-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2644-18-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2644-22-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download