898abc1e77e9e0ca0f6c91c0c87cc2b11cf8886ade6589329f8a07a747ae6f21

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
03/06/2024, 08:32

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General

Target

2024-06-03_a0891af499a44f5ad0e216c6913144ce_cryptolocker.exe
Size

82KB
MD5

a0891af499a44f5ad0e216c6913144ce
SHA1

878f5a447314f77bcfa75a1520b808c70d39bc5b
SHA256

898abc1e77e9e0ca0f6c91c0c87cc2b11cf8886ade6589329f8a07a747ae6f21
SHA512

c21d6136ab41a87a47ba3ea7c4c670a0d9f0f8d6e0df61f0ff1ee95bed4ec8b7f4327620f7a7ab539983b78c7e9bf1e30ef184806e12c3233403b7bcb5b47a89
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWafHNqVN:vCjsIOtEvwDpj5H9YvQd2q

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012280-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012280-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3004	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1612	2024-06-03_a0891af499a44f5ad0e216c6913144ce_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 1612 wrote to memory of 3004	1612	2024-06-03_a0891af499a44f5ad0e216c6913144ce_cryptolocker.exe	28
PID 1612 wrote to memory of 3004	1612	2024-06-03_a0891af499a44f5ad0e216c6913144ce_cryptolocker.exe	28
PID 1612 wrote to memory of 3004	1612	2024-06-03_a0891af499a44f5ad0e216c6913144ce_cryptolocker.exe	28
PID 1612 wrote to memory of 3004	1612	2024-06-03_a0891af499a44f5ad0e216c6913144ce_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-03_a0891af499a44f5ad0e216c6913144ce_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_a0891af499a44f5ad0e216c6913144ce_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1612
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3004

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
82KB

MD5
5812fec199c165dc0537258f68b5481c

SHA1
3909564170d87a6830c3a95c97b9abf73fd9698b

SHA256
7b2e15c6b5521395ac8cb56cbf14bc9cf3ead21936852177d4a4ab468bccacc6

SHA512
e53d30db980b7cc323b08843763f8ab0e27357c0e0b9e51f7cbfbbdc324f1d2dd174e512aa5a3a57eaf135b73db25047efcbece73dfa2ef4c6cb1c38eba0aae9

Download Submit
memory/1612-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1612-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1612-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3004-15-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/3004-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download