dfa286ee02d6996a88efb55992d3fb3dab00b8c17f1eaf3d1491be81899c603c

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
30/04/2024, 00:57

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General

Target

2024-04-30_a7c7c02b4f061a7227f1a0cac4af5857_cryptolocker.exe
Size

64KB
MD5

a7c7c02b4f061a7227f1a0cac4af5857
SHA1

0eed8d911b53a9d52c9f4a3ee5a0b653bf6cae68
SHA256

dfa286ee02d6996a88efb55992d3fb3dab00b8c17f1eaf3d1491be81899c603c
SHA512

de2a176d6d09d51dcd0677878ced37e0356cdad0d34f6cb6e00e51c44d8979256875ae86c442b34ded8e7de2884780f4bd4056ca15ea45234e149305b3120779
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbmh85Y:V6a+pOtEvwDpjv3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000149f5-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000149f5-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2824	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2888	2024-04-30_a7c7c02b4f061a7227f1a0cac4af5857_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 2888 wrote to memory of 2824	2888	2024-04-30_a7c7c02b4f061a7227f1a0cac4af5857_cryptolocker.exe	28
PID 2888 wrote to memory of 2824	2888	2024-04-30_a7c7c02b4f061a7227f1a0cac4af5857_cryptolocker.exe	28
PID 2888 wrote to memory of 2824	2888	2024-04-30_a7c7c02b4f061a7227f1a0cac4af5857_cryptolocker.exe	28
PID 2888 wrote to memory of 2824	2888	2024-04-30_a7c7c02b4f061a7227f1a0cac4af5857_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_a7c7c02b4f061a7227f1a0cac4af5857_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_a7c7c02b4f061a7227f1a0cac4af5857_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2888
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2824

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
65KB

MD5
600351c096d2e1541e7ed9e52e6eb0a7

SHA1
9e07511800a2ae1f579710ac50f77644ca3dc364

SHA256
1de3a72e5338a14adcb242d6212f857456b89f58fc5376acc1cf5bddfac006d0

SHA512
125e3b01c2a6b7e697af56a39c6884c6d843f07d2c4f2911e3fe729bd92fdc96f441f91269043e2e9dc9502704cca47a75db6c1294769cd90cf5a70169b32126

Download Submit
memory/2824-15-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2824-22-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2888-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2888-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2888-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download