b96ac8ee879f95718d8b527e085a5be825768cda2471a18150c1d6e310a2d00e

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 15:35

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General

Target

2024-01-25_62d68d09fb35f9470bcef39eabf2d54c_cryptolocker.exe
Size

37KB
MD5

62d68d09fb35f9470bcef39eabf2d54c
SHA1

37251773e948e396c945fa745a7d6f8b129f5731
SHA256

b96ac8ee879f95718d8b527e085a5be825768cda2471a18150c1d6e310a2d00e
SHA512

f4cfac5c7c8677e11c4d060ffb88547c6474188c4acb4d543ce97ff0566a01980896d930374c563459549aa8fe585a83930cb466bc888b94f4ec5de486141099
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKcf24:X6QFElP6n+gJQMOtEvwDpjBsYK624

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2820 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-01-25_62d68d09fb35f9470bcef39eabf2d54c_cryptolocker.exe

pid process

1996 2024-01-25_62d68d09fb35f9470bcef39eabf2d54c_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2820	asih.exe

pid	process
1996	2024-01-25_62d68d09fb35f9470bcef39eabf2d54c_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-01-25_62d68d09fb35f9470bcef39eabf2d54c_cryptolocker.exe

description	pid	process	target process
PID 1996 wrote to memory of 2820	1996	2024-01-25_62d68d09fb35f9470bcef39eabf2d54c_cryptolocker.exe	asih.exe
PID 1996 wrote to memory of 2820	1996	2024-01-25_62d68d09fb35f9470bcef39eabf2d54c_cryptolocker.exe	asih.exe
PID 1996 wrote to memory of 2820	1996	2024-01-25_62d68d09fb35f9470bcef39eabf2d54c_cryptolocker.exe	asih.exe
PID 1996 wrote to memory of 2820	1996	2024-01-25_62d68d09fb35f9470bcef39eabf2d54c_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_62d68d09fb35f9470bcef39eabf2d54c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_62d68d09fb35f9470bcef39eabf2d54c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1996

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2820

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
37KB

MD5
c4b801dd9e4e5b383d3d5dc8f9675f1d

SHA1
1f2668346dfce820d443b507eb3cc91543272f9d

SHA256
2d45d613170e6c4c62f20cf69bfd9d6cc6d35c67a108b95cfccae8316ea8fafd

SHA512
4cce3f6a4e0ce4645488faef1a20ee96e3351c2fc845bf60e13da668af9a43a22c4dead2d7b9563a14d37a210f19628c53802e64665d285f17b3e880c9e7a748

Download Submit
memory/1996-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1996-2-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1996-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2820-15-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/2820-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download