5afa72dc8d0d93265083ce2950ddea42b7c808478be5aa1ef19dae5b75b18c23

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 15:47

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General

Target

2024-05-21_8ecb9d762611bb0e46b8abda615f8a05_cryptolocker.exe
Size

49KB
MD5

8ecb9d762611bb0e46b8abda615f8a05
SHA1

9150bbc696f841de35f3b575063a22ae65d24f85
SHA256

5afa72dc8d0d93265083ce2950ddea42b7c808478be5aa1ef19dae5b75b18c23
SHA512

65300bad4bbe534f779aad528ca7cd0dc81bc2e0e229186125a96b1d880fc2b5a1aaad05a37f5b81c7f26a389afad69716504292f1e9b3f939c364e8a3acf83e
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vdXfe:X6QFElP6n+gJBMOtEvwDpjBtEdXfe

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000160cc-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000160cc-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3028	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2916	2024-05-21_8ecb9d762611bb0e46b8abda615f8a05_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 2916 wrote to memory of 3028	2916	2024-05-21_8ecb9d762611bb0e46b8abda615f8a05_cryptolocker.exe	28
PID 2916 wrote to memory of 3028	2916	2024-05-21_8ecb9d762611bb0e46b8abda615f8a05_cryptolocker.exe	28
PID 2916 wrote to memory of 3028	2916	2024-05-21_8ecb9d762611bb0e46b8abda615f8a05_cryptolocker.exe	28
PID 2916 wrote to memory of 3028	2916	2024-05-21_8ecb9d762611bb0e46b8abda615f8a05_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-21_8ecb9d762611bb0e46b8abda615f8a05_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_8ecb9d762611bb0e46b8abda615f8a05_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3028

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
49KB

MD5
c0569ccb8e59fe8e95c94eed1f3519a8

SHA1
041441c5df38ad519a4edd81f0f0c3779fc22222

SHA256
be001b525f58c10add8f367aecd8d226ca609075c1f8773370e1a036a952abf8

SHA512
a25f2183416d8d7e71fab3420b53b4d7a55cd5f77a0b513ca53cb180363a1d0a5bac95dde250f095b39f96b6afb22f525b59eaa2c012516d2bb3f513ee968804

Download Submit
memory/2916-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2916-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2916-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/3028-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3028-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download