af8220992af4d7f5f484724a50fdaf3baee3761f582d633f1e0a685b5aeeb557

Analysis

max time kernel
151s
max time network
156s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/03/2024, 10:03

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General

Target

2024-03-26_f73023ad8efd9d279e1d338915e8988c_cryptolocker.exe
Size

125KB
MD5

f73023ad8efd9d279e1d338915e8988c
SHA1

9d435b3e35a9f2b1247c7be192351b70ddcd56f0
SHA256

af8220992af4d7f5f484724a50fdaf3baee3761f582d633f1e0a685b5aeeb557
SHA512

5cf8d09c3836358abe57791062d580c3dac8abaa20d919fb51a55b38a323a64f6ab8444a863bb26666205d41ee87581a4930756edb3af7b3500a17e1a1101f17
SSDEEP

1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwMgdlo:u6a++OtEvwDpj6z8

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012246-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012246-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2676	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2720	2024-03-26_f73023ad8efd9d279e1d338915e8988c_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 2720 wrote to memory of 2676	2720	2024-03-26_f73023ad8efd9d279e1d338915e8988c_cryptolocker.exe	28
PID 2720 wrote to memory of 2676	2720	2024-03-26_f73023ad8efd9d279e1d338915e8988c_cryptolocker.exe	28
PID 2720 wrote to memory of 2676	2720	2024-03-26_f73023ad8efd9d279e1d338915e8988c_cryptolocker.exe	28
PID 2720 wrote to memory of 2676	2720	2024-03-26_f73023ad8efd9d279e1d338915e8988c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_f73023ad8efd9d279e1d338915e8988c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_f73023ad8efd9d279e1d338915e8988c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2720
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2676

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
125KB

MD5
478b531b4caa3281db83f587078e0946

SHA1
8b6c047d50cea553b8ae8cd0299dca29b7a00a96

SHA256
8ff19663f85fa5ed23b319f11581942d118dbbb400e72cd953ee58378b2aa301

SHA512
94f05eb69e3a1051fcc53dbacc06d5e88f8d1723723f168aea76e7b0f3440e12b7cadd4cb3ab302cfe617ba019a1d71f450c202da12f145acf78b267cb80a532

Download Submit
memory/2676-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2676-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2720-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2720-1-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2720-4-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download