e1fadfb3df9c91f8ddaa77188c814f541c101c781947447309e200ff27551956

Analysis

max time kernel
146s
max time network
147s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07/05/2024, 04:30

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General

Target

2024-05-07_484164f30d5f25eac88535ddab8c2730_cryptolocker.exe
Size

66KB
MD5

484164f30d5f25eac88535ddab8c2730
SHA1

4d8802cba3acd36d2014077b3846b9b1f7f3bc63
SHA256

e1fadfb3df9c91f8ddaa77188c814f541c101c781947447309e200ff27551956
SHA512

6abf71d74b839e0319ada8097bbae2a909ec3d4e7581f885a9c558029e9c0c631d7e21e1d6d8a8ad407d4f8971ddb0181969cdef38157ecbf624f8e413bb3076
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPvdfGyePr:TCjsIOtEvwDpj5HE/OUHnSMYN

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2020-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000016056-11.dat	CryptoLocker_rule2
behavioral1/memory/2020-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1936-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1936-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2020-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000016056-11.dat	CryptoLocker_set1
behavioral1/memory/2020-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1936-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1936-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1936	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2020	2024-05-07_484164f30d5f25eac88535ddab8c2730_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 2020 wrote to memory of 1936	2020	2024-05-07_484164f30d5f25eac88535ddab8c2730_cryptolocker.exe	28
PID 2020 wrote to memory of 1936	2020	2024-05-07_484164f30d5f25eac88535ddab8c2730_cryptolocker.exe	28
PID 2020 wrote to memory of 1936	2020	2024-05-07_484164f30d5f25eac88535ddab8c2730_cryptolocker.exe	28
PID 2020 wrote to memory of 1936	2020	2024-05-07_484164f30d5f25eac88535ddab8c2730_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-07_484164f30d5f25eac88535ddab8c2730_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-07_484164f30d5f25eac88535ddab8c2730_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1936

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\misid.exe

Filesize
66KB

MD5
e3f9ae479fd276731707e40b5259de93

SHA1
3093fdc5c752ba89e6c7b52965c6ae186fb92fa6

SHA256
599934551c2b160e0ca4cb1896f033d08bf28aaf880b20b1d09064f8cc2e6ba4

SHA512
3e861f06f0f62eb34a54a4481d582804a47d2288c5793a9ad31a85a0c246ff7829eb60cef86a1bd401c26392c048bae8e8d98fae935091e727c053b3f5e0d859

Download Submit
memory/1936-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1936-18-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1936-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1936-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2020-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2020-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2020-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2020-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2020-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download