Malware Analysis Report

2025-01-19 05:42

Sample ID 210820-c3chfq7h2x
Target 9248252f4f532bff4378504a8c860266ef490f4cf1de6a4abd9d06a3d84e7b87.apk
SHA256 9248252f4f532bff4378504a8c860266ef490f4cf1de6a4abd9d06a3d84e7b87
Tags
flubot banker infostealer obfuscation 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

9248252f4f532bff4378504a8c860266ef490f4cf1de6a4abd9d06a3d84e7b87

Threat Level: Known bad

The file 9248252f4f532bff4378504a8c860266ef490f4cf1de6a4abd9d06a3d84e7b87.apk was found to be: Known bad.

Malicious Activity Summary

flubot banker infostealer obfuscation trojan

FluBot

FluBot Payload

Requests dangerous framework permissions

Loads dropped Dex/Jar

Requests enabling of the accessibility settings.

Uses reflection

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2021-08-20 08:10

Signatures

Requests dangerous framework permissions

Description Indicator Process Target
Allows an application to send SMS messages. android.permission.SEND_SMS N/A N/A
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 receive SMS messages. android.permission.RECEIVE_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 read SMS messages. android.permission.READ_SMS N/A N/A
Allows an application to read the user's contacts data. android.permission.READ_CONTACTS N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-08-20 08:10

Reported

2021-08-20 08:13

Platform

android-x86-arm

Max time kernel

1654583s

Command Line

com.baidu.searchbox

Signatures

FluBot

banker trojan infostealer flubot

FluBot Payload

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

Loads dropped Dex/Jar

Description Indicator Process Target
N/A /data/user/0/com.baidu.searchbox/code_cache/secondary-dexes/base.apk.classes1.zip N/A N/A
N/A /data/user/0/com.baidu.searchbox/code_cache/secondary-dexes/base.apk.classes1.zip N/A N/A

Requests enabling of the accessibility settings.

Description Indicator Process Target
Intent action android.settings.ACCESSIBILITY_SETTINGS N/A N/A

Uses reflection

obfuscation
Description Indicator Process Target
Invokes method android.view.ViewGroup.makeOptionalFitsSystemWindows N/A N/A N/A
Acesses field com.android.okhttp.internal.tls.OkHostnameVerifier.INSTANCE N/A N/A N/A

Processes

com.baidu.searchbox

com.baidu.searchbox

/system/bin/dex2oat

Network

N/A

Files

/data/user/0/com.baidu.searchbox/code_cache/secondary-dexes/MultiDex.lock

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.baidu.searchbox/code_cache/secondary-dexes/tmp-base.apk.classes3519624415814286693.zip

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.baidu.searchbox/code_cache/secondary-dexes/base.apk.classes1.zip.x86.flock

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.baidu.searchbox/code_cache/secondary-dexes/oat/x86/base.apk.classes1.vdex

MD5 aab85254d3e8388423f118b650100aca
SHA1 89fde2a4ac51c36636bee9cceedb8db6fd4d133d
SHA256 e92dbec3ce0736c08a2ef9fbf0b2ddefe52d68c7d45aa0bca3bd632b0ee609c3
SHA512 07a83a410b501c93042189b20d47d340690b9fda3573aea2ca63380c29070a9e9463fd2df9c1c33b74b1ca165ec7c9df23004f8b0dd687e02e05595c23b96330

/data/user/0/com.baidu.searchbox/code_cache/secondary-dexes/oat/x86/base.apk.classes1.odex

MD5 974bee570ca9281dec828ee95e873222
SHA1 8545091e2206e7488bf60132e393004cab84d788
SHA256 ac7932a26ae0e3397f9c7998f6e52ed6db970755b7dda64e1f2eb5a70273c14a
SHA512 9bdd2cf37a2eeca9cc99a788bca7fd610e7c1e591c2235cd943657b168217fb54963f69616d6a43ba29ee8575643d6157ff1ede6fb8472a7ebfc342694bb6a47

/data/user/0/com.baidu.searchbox/shared_prefs/multidex.version.xml

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.baidu.searchbox/code_cache/secondary-dexes/base.apk.classes1.zip

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.baidu.searchbox/code_cache/secondary-dexes/base.apk.classes1.zip

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.baidu.searchbox/shared_prefs/Voicemail.xml

MD5 da33dbdaae723923c9d965b05e879a98
SHA1 a93484c199f568b8e334823b543b1613db5daa4d
SHA256 2dc5cdf746efb804c1e37918a3051c2e595ddb712bf1baff9851f0df10682939
SHA512 b7db1414a91cd9d4ceb1e99800780b3868757bef3289c51d182c1968fd1a6c8bade66bdf588024105a39b4fea69b667c990c75a20037ec01ac1c8e3e1dbf32ad