Malware Analysis Report

2024-10-19 13:13

Sample ID 220817-tgtr2shgam
Target Santander-trusteer.apk
SHA256 27e0ec79dbb7c7f99b43c8c01a94188d1071d1245b1745d0e066ae774c78a8f8
Tags
brata banker infostealer rat 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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

27e0ec79dbb7c7f99b43c8c01a94188d1071d1245b1745d0e066ae774c78a8f8

Threat Level: Known bad

The file Santander-trusteer.apk was found to be: Known bad.

Malicious Activity Summary

brata banker infostealer rat trojan

Brata

Brata payload

Requests dangerous framework permissions

Acquires the wake lock.

Loads dropped Dex/Jar

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2022-08-17 16:02

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 write to external storage. android.permission.WRITE_EXTERNAL_STORAGE 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 monitor incoming MMS messages. android.permission.RECEIVE_MMS N/A N/A
Allows an application to receive SMS messages. android.permission.RECEIVE_SMS N/A N/A
Allows an application to read from external storage. android.permission.READ_EXTERNAL_STORAGE 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 the user's contacts data. android.permission.READ_CONTACTS N/A N/A
Allows an application to write the user's contacts data. android.permission.WRITE_CONTACTS N/A N/A
Allows an application to read the user's call log. android.permission.READ_CALL_LOG N/A N/A
Allows the app to answer an incoming phone call. android.permission.ANSWER_PHONE_CALLS N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-08-17 16:02

Reported

2022-08-17 16:04

Platform

android-x86-arm-20220621-en

Max time kernel

2894893s

Max time network

139s

Command Line

com.xd.craft.school

Signatures

Brata

banker trojan infostealer rat brata

Brata payload

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

Acquires the wake lock.

Description Indicator Process Target
Framework service call android.os.IPowerManager.acquireWakeLock N/A N/A

Loads dropped Dex/Jar

Description Indicator Process Target
N/A /data/user/0/com.xd.craft.school/app_ded/eaGngwrZtj6v89w3KVqYwcYOmiBWRi5Q.dex N/A N/A
N/A /data/user/0/com.xd.craft.school/app_ded/eaGngwrZtj6v89w3KVqYwcYOmiBWRi5Q.dex N/A N/A
N/A /data/user/0/com.xd.craft.school/app_ded/eaGngwrZtj6v89w3KVqYwcYOmiBWRi5Q.dex N/A N/A

Processes

com.xd.craft.school

/system/bin/dex2oat --instruction-set=x86 --instruction-set-features=ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt --runtime-arg -Xhidden-api-checks --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --inline-max-code-units=0 --compact-dex-level=none --dex-file=/data/user/0/com.xd.craft.school/app_ded/eaGngwrZtj6v89w3KVqYwcYOmiBWRi5Q.dex --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.xd.craft.school/app_ded/oat/x86/eaGngwrZtj6v89w3KVqYwcYOmiBWRi5Q.odex --compiler-filter=quicken --class-loader-context=&

Network

Country Destination Domain Proto
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
NL 142.251.36.34:443 tcp
NL 142.250.179.195:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
NL 216.58.214.14:443 android.apis.google.com tcp
US 1.1.1.1:853 tcp

Files

/data/user/0/com.xd.craft.school/app_ded/eaGngwrZtj6v89w3KVqYwcYOmiBWRi5Q.dex

MD5 295ed823d46c31cef4135633633daf3b
SHA1 bb3569427f6e34114bce6eff08b5b283f5195393
SHA256 906d5dbff4fd804294ca836d71ee7a8c1d145e2b482592458aa8413a076efe79
SHA512 effb517c5c1cf11329fd0d3cde9e7999245bc51b7e7d56451eb34472e719c3cde64532a2d2cc0c234af2fb9ccf80e446c2d81c9d1f841199ec68c27450d5074e

/data/user/0/com.xd.craft.school/app_ded/eaGngwrZtj6v89w3KVqYwcYOmiBWRi5Q.dex.x86.flock

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.xd.craft.school/app_ded/eaGngwrZtj6v89w3KVqYwcYOmiBWRi5Q.dex

MD5 295ed823d46c31cef4135633633daf3b
SHA1 bb3569427f6e34114bce6eff08b5b283f5195393
SHA256 906d5dbff4fd804294ca836d71ee7a8c1d145e2b482592458aa8413a076efe79
SHA512 effb517c5c1cf11329fd0d3cde9e7999245bc51b7e7d56451eb34472e719c3cde64532a2d2cc0c234af2fb9ccf80e446c2d81c9d1f841199ec68c27450d5074e

/data/user/0/com.xd.craft.school/app_ded/oat/x86/eaGngwrZtj6v89w3KVqYwcYOmiBWRi5Q.vdex

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.xd.craft.school/app_ded/oat/x86/eaGngwrZtj6v89w3KVqYwcYOmiBWRi5Q.odex

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

/data/user/0/com.xd.craft.school/app_ded/eaGngwrZtj6v89w3KVqYwcYOmiBWRi5Q.dex

MD5 295ed823d46c31cef4135633633daf3b
SHA1 bb3569427f6e34114bce6eff08b5b283f5195393
SHA256 906d5dbff4fd804294ca836d71ee7a8c1d145e2b482592458aa8413a076efe79
SHA512 effb517c5c1cf11329fd0d3cde9e7999245bc51b7e7d56451eb34472e719c3cde64532a2d2cc0c234af2fb9ccf80e446c2d81c9d1f841199ec68c27450d5074e

/data/user/0/com.xd.craft.school/app_ded/eaGngwrZtj6v89w3KVqYwcYOmiBWRi5Q.dex

MD5 b579d2033bbd178950d70d6c9e1bf22b
SHA1 f3490ec5a64d5b85083f9e0e5e0aac35a6c20157
SHA256 6ebb7cd1ef7c69296b33c02dd5c188a576a603fe8fd25e5b75c14ee73ff46a2f
SHA512 5c700935bf9a1df02ad21916cfb55bf76c20052d9103f14a1ca255246cceed7948511fd51d3b4693b2327518d504e952bbc7c0c867c54ec830411c108f0fa7c4

/data/user/0/com.xd.craft.school/files/a11y

MD5 2e5d8aa3dfa8ef34ca5131d20f9dad51
SHA1 3cc1d5a427a45820b04fe30f78a972b784952460
SHA256 cde0fb0dec1400c54a0f7e7eafa73624c53e4da258bbd34b3380a0defeba95c1
SHA512 a0527c1de9df8c529337f73be73cf98fcde155fcf00c7522f67a4a6298b52853d9767815d8811c2a7e5e829871a5dea9174b2b7e90fb7c98a62467240dd78434

Analysis: behavioral2

Detonation Overview

Submitted

2022-08-17 16:02

Reported

2022-08-17 16:05

Platform

android-x64-20220621-en

Max time network

135s

Command Line

N/A

Signatures

N/A

Processes

N/A

Network

Country Destination Domain Proto
NL 142.251.39.106:443 tcp
US 1.1.1.1:853 tcp
US 1.1.1.1:853 tcp
N/A 224.0.0.251:5353 udp
NL 172.217.168.234:443 tcp
NL 142.251.36.46:443 udp
NL 142.251.39.106:443 tcp
NL 142.251.39.106:443 tcp
NL 142.251.39.106:443 tcp
NL 142.251.36.34:443 tcp
NL 142.250.179.168:443 tcp
NL 142.250.179.195:443 tcp
NL 142.250.179.142:443 tcp
NL 142.250.179.202:443 tcp
NL 142.250.179.142:443 tcp
NL 142.251.39.106:443 tcp
NL 142.251.39.106:443 tcp
US 1.1.1.1:853 tcp
US 1.1.1.1:853 tcp

Files

N/A

Analysis: behavioral3

Detonation Overview

Submitted

2022-08-17 16:02

Reported

2022-08-17 16:05

Platform

android-x64-arm64-20220621-en

Max time network

158s

Command Line

N/A

Signatures

N/A

Processes

N/A

Network

Country Destination Domain Proto
NL 142.250.179.195:443 tcp
NL 216.58.208.106:443 udp
NL 142.250.179.174:443 udp
US 1.1.1.1:853 tcp
US 1.1.1.1:853 tcp
NL 172.217.168.234:443 tcp
NL 172.217.168.234:443 tcp
N/A 224.0.0.251:5353 udp
NL 142.250.179.136:443 tcp
NL 172.217.168.202:443 tcp
NL 216.58.208.106:443 tcp
NL 172.217.168.202:443 tcp
NL 216.58.208.99:443 tcp
NL 142.250.179.195:443 tcp
NL 172.217.168.202:443 tcp
NL 142.250.179.168:443 tcp
NL 142.250.179.142:443 tcp
NL 172.217.168.234:443 tcp
US 1.1.1.1:853 tcp
US 1.1.1.1:853 tcp
GB 142.250.200.36:443 udp
NL 172.217.168.202:443 tcp

Files

N/A