Malware Analysis Report

2025-01-19 05:41

Sample ID 211014-nbyadsghh5
Target e6fa66fc4795131cfbb97668279b84fbf389cc0ff736ae77ec351caa15a45038.apk
SHA256 e6fa66fc4795131cfbb97668279b84fbf389cc0ff736ae77ec351caa15a45038
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

e6fa66fc4795131cfbb97668279b84fbf389cc0ff736ae77ec351caa15a45038

Threat Level: Known bad

The file e6fa66fc4795131cfbb97668279b84fbf389cc0ff736ae77ec351caa15a45038.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

2021-10-14 11:14

Signatures

Requests dangerous framework permissions

Description Indicator Process Target
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 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 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

Analysis: behavioral1

Detonation Overview

Submitted

2021-10-14 11:13

Reported

2021-10-14 11:22

Platform

android-x86-arm

Max time kernel

2122955s

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
N/A N/A N/A N/A

Loads dropped Dex/Jar

Description Indicator Process Target
N/A /data/user/0/com.baidu.searchbox/Yfzjhhjpkv/bzxjopjhbhhbhjg/base.apk.jdkhjbg1.xbY N/A N/A
N/A /data/user/0/com.baidu.searchbox/Yfzjhhjpkv/bzxjopjhbhhbhjg/base.apk.jdkhjbg1.xbY 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
Invokes method android.view.ViewGroup.makeOptionalFitsSystemWindows N/A N/A N/A
Invokes method android.view.ViewGroup.makeOptionalFitsSystemWindows N/A N/A N/A
Invokes method android.view.ViewGroup.makeOptionalFitsSystemWindows N/A N/A N/A
Invokes method android.view.ViewGroup.makeOptionalFitsSystemWindows N/A N/A N/A
Invokes method android.view.ViewGroup.makeOptionalFitsSystemWindows N/A N/A N/A
Invokes method android.view.ViewGroup.makeOptionalFitsSystemWindows 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/Yfzjhhjpkv/bzxjopjhbhhbhjg/shhjhpja.kvsg

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.baidu.searchbox/Yfzjhhjpkv/bzxjopjhbhhbhjg/tmp-base.apk.jdkhjbg619749483889074381.xbY

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.baidu.searchbox/Yfzjhhjpkv/bzxjopjhbhhbhjg/base.apk.jdkhjbg1.xbY.x86.flock

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.baidu.searchbox/Yfzjhhjpkv/bzxjopjhbhhbhjg/oat/x86/base.apk.jdkhjbg1.vdex

MD5 49b160a886da2410d77cc14674feaefc
SHA1 de4e16e840e0eaa8159fb7cf1dc0ce0ce7db891e
SHA256 14ce6af4c54ddd4d39b5f8ce37f68072b748195b2ca467d31d722626303bc5fe
SHA512 62fd71d4cb0484e9c1a3ce500508378f3c4cd88498d54e1b29e9cf69ee32c79548c529fec7d5ef7c41d5fbba0cd61017a245b88ede2e2661de89b9345af29efe

/data/user/0/com.baidu.searchbox/Yfzjhhjpkv/bzxjopjhbhhbhjg/oat/x86/base.apk.jdkhjbg1.odex

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

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

MD5 aacbd3996c2a1fc66fca6454a7b451cf
SHA1 cb915d412cc8224e31a784a9e42bc1fb9785bb1c
SHA256 06bad83ef46912a933ff39197f9ee3273647a4c23408875a7a4f543361d5a822
SHA512 59ddac35c17ae7e1efacf169cfd3df0e379eb503e723f7d62e919438620261b2409bdedceed7f08c65eb500e5dcf5c443e83620380cd553ace8db177cda4adac

/data/user/0/com.baidu.searchbox/Yfzjhhjpkv/bzxjopjhbhhbhjg/base.apk.jdkhjbg1.xbY

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.baidu.searchbox/Yfzjhhjpkv/bzxjopjhbhhbhjg/base.apk.jdkhjbg1.xbY

MD5 a401d039ac4a86e4ba0c8a8e4307b04e
SHA1 ff6b1513ed9f9aa0e9dc011aac4c765274d5ec42
SHA256 912180b0d7b832fae516edea705335202b7fcea64f5461c512dc9f413fd8808c
SHA512 4a04292f2e09e9cd62e97507283f70458656a3efc801ca8543a22fff5e283caa6c58686b518c68c7b7a395ff82f8b365c85bf49e5fb4ae063aec3b0d09559e4c

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

MD5 e8f52eaad5c7d731628b7f70d75fc09b
SHA1 c07b16fd5903e3051e02d29909d500278696afdc
SHA256 d3013b580850676b17409fb10df99a7c9588586e545dc2b39aeb2fb4eac2ec78
SHA512 2e6f24183720f6fe602d5c67e0fe65d5faa07259665a1dfb0a4dc407d475f52dc2619684d444faabb866d8a39075f2d57f5305c920665b85d6b05a3f74c9968e

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

MD5 333272e8f9d535cdea8e83c7afacbbe0
SHA1 4f62a110172cfe22d92ede386df0721545e648fe
SHA256 54724e0c58436ee9b5da9353043622d1dde57c48d6058b3be6ca14347bce3893
SHA512 4806707cbdfb76b71fd2cb75beeb070bcb8bb98e25f228403c2e1b83e281b336b040c6d87edbdfc7a6395dac66cccee345735db20abdf70077433b2f553c76fb