e5c6ab36ad40c8d469c2e8a2b789742c0f628c132356bdbad37761f8131b5e25

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
23/01/2024, 00:30

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General

Target

2024-01-23_86096055f173830ee85352bc9caf4b96_cryptolocker.exe
Size

72KB
MD5

86096055f173830ee85352bc9caf4b96
SHA1

647744389962512dd471d64c0dc49bf481af7ecb
SHA256

e5c6ab36ad40c8d469c2e8a2b789742c0f628c132356bdbad37761f8131b5e25
SHA512

e739d49a3881956dec7b54a77db891ebfca6d4ea01aa29f9849bd262cae4ae2c200bdea2e673dcf5724389ab4e233e898ad4c280c8a951bdbfbd2c94de50ccc2
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1Ma:X6a+SOtEvwDpjBZYvQd23

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012308-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012308-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2904	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1916	2024-01-23_86096055f173830ee85352bc9caf4b96_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 1916 wrote to memory of 2904	1916	2024-01-23_86096055f173830ee85352bc9caf4b96_cryptolocker.exe	28
PID 1916 wrote to memory of 2904	1916	2024-01-23_86096055f173830ee85352bc9caf4b96_cryptolocker.exe	28
PID 1916 wrote to memory of 2904	1916	2024-01-23_86096055f173830ee85352bc9caf4b96_cryptolocker.exe	28
PID 1916 wrote to memory of 2904	1916	2024-01-23_86096055f173830ee85352bc9caf4b96_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-23_86096055f173830ee85352bc9caf4b96_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-23_86096055f173830ee85352bc9caf4b96_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2904

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
72KB

MD5
76072aeba96d523ee4e6e4f598e5074f

SHA1
9d4f32adc2bfcf2d9418b85bb594b2e5b6b6058d

SHA256
1b2746b08deba9aa20f66d007477a65c725628a72fe830b25e535fe4abf8dda3

SHA512
89f8d92f0addc0ca8d33729a4d6c7988858ba54386bf8511f9fbbc958c64156482d3ddd72ec8e9979f98032cead2638c2b29d6be14eb6d66eaf1f52ce690c1ce

Download Submit
memory/1916-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/1916-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/1916-2-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2904-15-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/2904-18-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download