98be7656692e1aaff3e67766ad4b888edfabced5f3fa155b145a02b0a681dfd6

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
11/01/2024, 05:51

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-10_6f8a3ea9cea134185ca9bb6d36fdffac_cryptolocker.exe
Size

63KB
MD5

6f8a3ea9cea134185ca9bb6d36fdffac
SHA1

4ebd03bfc9afccee8e93516ef17fd4ef24ebbfb8
SHA256

98be7656692e1aaff3e67766ad4b888edfabced5f3fa155b145a02b0a681dfd6
SHA512

97dfe94a857b219dcf4407452c67155f3d8b70001af554a7837e01351b74d7bb3b5f8dcf81d8daac7285c370c767c2554541bdc7fc65f2d0625a680dc3407f01
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjY6U+:1nK6a+qdOOtEvwDpj/

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1968	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2196	2024-01-10_6f8a3ea9cea134185ca9bb6d36fdffac_cryptolocker.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2196-1-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/2196-15-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/1968-24-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x0009000000014a5b-14.dat	upx

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 2196 wrote to memory of 1968	2196	2024-01-10_6f8a3ea9cea134185ca9bb6d36fdffac_cryptolocker.exe	14
PID 2196 wrote to memory of 1968	2196	2024-01-10_6f8a3ea9cea134185ca9bb6d36fdffac_cryptolocker.exe	14
PID 2196 wrote to memory of 1968	2196	2024-01-10_6f8a3ea9cea134185ca9bb6d36fdffac_cryptolocker.exe	14
PID 2196 wrote to memory of 1968	2196	2024-01-10_6f8a3ea9cea134185ca9bb6d36fdffac_cryptolocker.exe	14

C:\Users\Admin\AppData\Local\Temp\2024-01-10_6f8a3ea9cea134185ca9bb6d36fdffac_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-10_6f8a3ea9cea134185ca9bb6d36fdffac_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1968

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

Loading Replay Monitor...

Downloads

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

Filesize
63KB

MD5
16016fd89eda16ef745d658882ed3037

SHA1
4a95fcd07ff0c3134fa91e82b965784c93b4dbe3

SHA256
73f6312c86997157c5040cea73a889299c64e6e03361c9060b306b4fff67503c

SHA512
889286bcf63d1742ccd523feaf0b3a002b47d46e409311c121f2c298d748928a005c81859a9f2a395fa725c55bcc47d036d5c4432e1b5f2d83ffb8b025a0e787

Download Submit
memory/1968-24-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2196-1-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2196-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2196-3-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2196-15-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2196-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download