Malware Analysis Report

2025-01-19 05:41

Sample ID 210920-pk5aqseba3
Target 7d1f76505d1de5253429f5228b8decb0c75ab0f76915a8d560086f88c9d2a1b9.apk
SHA256 7d1f76505d1de5253429f5228b8decb0c75ab0f76915a8d560086f88c9d2a1b9
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

7d1f76505d1de5253429f5228b8decb0c75ab0f76915a8d560086f88c9d2a1b9

Threat Level: Known bad

The file 7d1f76505d1de5253429f5228b8decb0c75ab0f76915a8d560086f88c9d2a1b9.apk was found to be: Known bad.

Malicious Activity Summary

flubot banker infostealer obfuscation trojan

FluBot Payload

FluBot

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

2021-09-20 12:24

Signatures

Requests dangerous framework permissions

Description Indicator Process Target
Allows an application to receive SMS messages. android.permission.RECEIVE_SMS N/A N/A
Allows an application to read SMS messages. android.permission.READ_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 send SMS messages. android.permission.SEND_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 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

Analysis: behavioral1

Detonation Overview

Submitted

2021-09-20 12:24

Reported

2021-09-20 12:27

Platform

android-x86-arm

Max time kernel

53270s

Command Line

com.xunmeng.pinduoduo

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.xunmeng.pinduoduo/app_apkprotector_dex/XoyN2M3V.king N/A N/A
N/A /data/user/0/com.xunmeng.pinduoduo/app_apkprotector_dex/XoyN2M3V.king N/A N/A
N/A /data/user/0/com.xunmeng.pinduoduo/app_apkprotector_dex/XoyN2M3V.king 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.xunmeng.pinduoduo

com.xunmeng.pinduoduo

/system/bin/dex2oat

Network

N/A

Files

/data/user/0/com.xunmeng.pinduoduo/app_apkprotector_dex/XoyN2M3V.king

MD5 0c0624ccc8deddc6f628c65a4171cd42
SHA1 415fc351d91b74e032a8f21aed878f1c1e017750
SHA256 3c575c7b079fb889a4411f7ca7177d102fa4f7ca6cf42a39f4a007ceb661b9ed
SHA512 3174a206d79e9123801184efcab0ab01f4ceaf88366af78e7880e2fb26036b3d6fb81ba46677672ce6de6aac38a102f86a5117d8d27031c6d045f8d23f69c99b

/data/user/0/com.xunmeng.pinduoduo/app_apkprotector_dex/XoyN2M3V.king.x86.flock

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.xunmeng.pinduoduo/app_apkprotector_dex/XoyN2M3V.king

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.xunmeng.pinduoduo/app_apkprotector_dex/oat/x86/XoyN2M3V.vdex

MD5 044d0db0e11fd2aaa3d1b0cbf4e8a379
SHA1 b2a8c3de704abee3b2c142f501247e0f52078e60
SHA256 c9011ab467be790e80159ab53abaf6eb7144b4586eda86e77d26540f6ed6b53e
SHA512 81c757ef2c04d7d17ce932179c77f8c7a58adb39be437d5e6514622e03fc342c5a4e94d08af7bf619bdd99bae1caf58790a05d87bbd7e42b3058abc59664c6f3

/data/user/0/com.xunmeng.pinduoduo/app_apkprotector_dex/oat/x86/XoyN2M3V.odex

MD5 2bdd796fa86d552dd2508406df217337
SHA1 990bd74537b58aeebafd360a502db4c92b4c74e4
SHA256 4015c84640981c8b001d100e628c9308f48d2050313b75046d82fd7c371b41fb
SHA512 597aeda930250ef8188132f2d667dd943aa969e6cacf650216e8837ba9c2b576802ae9e3646e5b442c956c37e7038d5a1a79fd3b4f22930314eb7af028d9d0fc

/data/user/0/com.xunmeng.pinduoduo/app_apkprotector_dex/XoyN2M3V.king

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.xunmeng.pinduoduo/app_apkprotector_dex/XoyN2M3V.king

MD5 30959b02e0398232d80c22cf6281344b
SHA1 24839a390417ff3248feada519eea167eca6ce4b
SHA256 0a9854a79ad8e69557af693a41b2409cda0d5faa0db9f07f6946b64fe08c7694
SHA512 8e1eb3fa682d55dd30ec13cc34242912dfe9aa8d5139427af2a31be4c12b49a7d6a91e1425d34cfd40b0eb3f401e08f654b5c4d63849d002277697f1be7b79bc

/data/user/0/com.xunmeng.pinduoduo/shared_prefs/Voicemail.xml

MD5 64998a592ff0db81764d5df7c4b6ab50
SHA1 fee4a91317b23812e9ec5775908178d9572319f6
SHA256 a17584b55d451ebaa917101934e960c2cc1e16805d35dafdb4e8aee6c3497097
SHA512 5c0c5462ee5f41a774fc4423fa6b27816feb93a2da3c36423ebcc26f14d71f49441dcf4cba6fcf1ed17dece244afe8979ba1a43ba79415eeac51d0eaab8590f2