Malware Analysis Report

2025-01-19 05:40

Sample ID 211028-qmjbqagdek
Target 358eb23a46f9c5d2bf24257d135623d368a98a10fccc92f5e923449974ef246e.apk
SHA256 358eb23a46f9c5d2bf24257d135623d368a98a10fccc92f5e923449974ef246e
Tags
flubot banker infostealer ransomware trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

358eb23a46f9c5d2bf24257d135623d368a98a10fccc92f5e923449974ef246e

Threat Level: Known bad

The file 358eb23a46f9c5d2bf24257d135623d368a98a10fccc92f5e923449974ef246e.apk was found to be: Known bad.

Malicious Activity Summary

flubot banker infostealer ransomware trojan

FluBot

FluBot Payload

Requests dangerous framework permissions

Loads dropped Dex/Jar

Uses Crypto APIs (Might try to encrypt user data).

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2021-10-28 13:22

Signatures

Requests dangerous framework permissions

Description Indicator Process Target
Allows read only access to phone state, including the current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device. android.permission.READ_PHONE_STATE N/A N/A
Allows an application to read the user's contacts data. android.permission.READ_CONTACTS N/A N/A
Allows an application to read SMS messages. android.permission.READ_SMS N/A N/A
Allows an application to send SMS messages. android.permission.SEND_SMS N/A N/A
Allows an application to initiate a phone call without going through the Dialer user interface for the user to confirm the call. android.permission.CALL_PHONE N/A N/A
Allows an application to receive SMS messages. android.permission.RECEIVE_SMS N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-10-28 13:22

Reported

2021-10-28 13:25

Platform

android-x64

Max time kernel

3339939s

Max time network

161s

Command Line

com.bilibili.app.in

Signatures

FluBot

banker trojan infostealer flubot

FluBot Payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Loads dropped Dex/Jar

Description Indicator Process Target
N/A /data/user/0/com.bilibili.app.in/app_apkprotector_dex/dW9vK9OU.pi N/A N/A
N/A /data/user/0/com.bilibili.app.in/app_apkprotector_dex/dW9vK9OU.pi N/A N/A

Uses Crypto APIs (Might try to encrypt user data).

ransomware
Description Indicator Process Target
Framework API call javax.crypto.Cipher.doFinal N/A N/A

Processes

com.bilibili.app.in

Network

Country Destination Domain Proto
US 1.1.1.1:853 tcp
US 216.239.35.4:123 time.android.com udp
US 1.1.1.1:853 tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 8.8.4.4:443 dns.google tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 8.8.4.4:443 dns.google tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 8.8.4.4:443 dns.google tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 8.8.4.4:443 dns.google tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
US 8.8.4.4:443 dns.google tcp
US 104.16.248.249:443 cloudflare-dns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 8.8.4.4:443 dns.google tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 dns.alidns.com tcp
US 8.8.4.4:443 dns.google tcp
CN 223.5.5.5:443 tcp
CN 223.5.5.5:443 tcp
US 104.16.248.249:443 tcp

Files

/data/user/0/com.bilibili.app.in/app_apkprotector_dex/dW9vK9OU.pi

MD5 92d34ad03b4c36ee70367c19203d55ff
SHA1 a7b77826fca4b6fe7e940453ee76f1c857a86738
SHA256 1d5826e55515575f1a4f502dbe255b9041d3ca5ce473a22e6e67318861a57ec9
SHA512 cd0a44e5188654b6f33a40d23f9763d564fe0ec592fb9683d444ac3f834f2f71c34cfb859f9b91b8f3f5d1c8f2e3080e7028361c4cdc1785229b2477b956ccda

/data/user/0/com.bilibili.app.in/app_apkprotector_dex/dW9vK9OU.pi

MD5 92d34ad03b4c36ee70367c19203d55ff
SHA1 a7b77826fca4b6fe7e940453ee76f1c857a86738
SHA256 1d5826e55515575f1a4f502dbe255b9041d3ca5ce473a22e6e67318861a57ec9
SHA512 cd0a44e5188654b6f33a40d23f9763d564fe0ec592fb9683d444ac3f834f2f71c34cfb859f9b91b8f3f5d1c8f2e3080e7028361c4cdc1785229b2477b956ccda