c6ba6a5fe1b984bfe9a0806c2fbf197fb5df6f816001e2b846dd8adcb43deed6

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
30/04/2024, 15:56

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General

Target

2024-04-30_4e7e9fb270caeddb1b3f8efa43fcb956_cryptolocker.exe
Size

42KB
MD5

4e7e9fb270caeddb1b3f8efa43fcb956
SHA1

b3f2706de8e085f1e2f73f05237e29a0e05149f2
SHA256

c6ba6a5fe1b984bfe9a0806c2fbf197fb5df6f816001e2b846dd8adcb43deed6
SHA512

6549e2e238eace6eba4b15e2f1a021819b412aa6cfc37abe6f811722d94e569def7c4ae0ff9a0d76042ac0a8e6fc59d9a2c30e2a9cf84965d0b95dda5b29b85b
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9Ct1:X6QFElP6n+gJQMOtEvwDpjBmzDkWD8t1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000015cb1-21.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000015cb1-21.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2712	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2768	2024-04-30_4e7e9fb270caeddb1b3f8efa43fcb956_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 2768 wrote to memory of 2712	2768	2024-04-30_4e7e9fb270caeddb1b3f8efa43fcb956_cryptolocker.exe	28
PID 2768 wrote to memory of 2712	2768	2024-04-30_4e7e9fb270caeddb1b3f8efa43fcb956_cryptolocker.exe	28
PID 2768 wrote to memory of 2712	2768	2024-04-30_4e7e9fb270caeddb1b3f8efa43fcb956_cryptolocker.exe	28
PID 2768 wrote to memory of 2712	2768	2024-04-30_4e7e9fb270caeddb1b3f8efa43fcb956_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_4e7e9fb270caeddb1b3f8efa43fcb956_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_4e7e9fb270caeddb1b3f8efa43fcb956_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2768
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2712

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

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

Filesize
42KB

MD5
b8cb0012a74de4adcb77df8d55310b56

SHA1
c9e6e4dc9d2e7b3151483918c2e859c85e0c2acb

SHA256
757d78678ae930e318f276347b02adb45869028e114e2a2a143cc907644984f2

SHA512
869b2deb8d378a8a7443428cb2f4a232314e930abdd221dfefd753ff1c44721eebe297aa5535c070610fbb935b830e4a2ec40c1f53db913efe5edfb49b5e06b6

Download Submit
memory/2712-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2712-15-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2768-0-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download
memory/2768-1-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2768-8-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download