flubot | 2af548766f9a368e72dfab3c5bf4123da0d52f603e405e801f79a4a9c5b5c07c

Analysis

max time kernel
382120s
max time network
642s
platform
android_x64
resource
android-x64-arm64-20220823-en
resource tags

androidarch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20220823-enlocale:en-usos:android-11-x64system
submitted
26-10-2022 23:31

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General

Target

2af548766f9a368e72dfab3c5bf4123da0d52f603e405e801f79a4a9c5b5c07c.apk
Size

4.0MB
MD5

2ffac6c6ba63598b34dc8a076208f7b4
SHA1

02d20c723835a961b594ada5c5acff8ee5ed9bab
SHA256

2af548766f9a368e72dfab3c5bf4123da0d52f603e405e801f79a4a9c5b5c07c
SHA512

fbb2955d883d9275bfa0f7c23ca1110ceed1b13083ec249f8445c9c203fdbd9554c36ab91b7c3634871812f3661a7a0b33dc4168b2ef0f1afcff26e370468bd8
SSDEEP

98304:+1iNL19D17KA443+dt+G9ZDPAC77jZRFJhYv09Lc:7NLLZ7l4F2+97j7FJ/Lc

Score

10^/10

flubot banker discovery evasion infostealer ransomware trojan

Malware Config

Signatures

FluBot
FluBot is an android banking trojan that uses overlays.
banker trojan infostealer flubot

FluBot payload 3 IoCs

Processes:

resource	yara_rule
/data/user/0/com.tencent.mm/app_apkprotector_dex/classes-v1.bin	family_flubot
/data/user/0/com.tencent.mm/app_apkprotector_dex/classes-v1.bin	family_flubot
/data/user/0/com.tencent.mm/app_apkprotector_dex/classes-v1.bin	family_flubot

Makes use of the framework's Accessibility service. 3 IoCs

Processes:

com.tencent.mm

description	ioc	process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.tencent.mm
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.tencent.mm
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.tencent.mm

Loads dropped Dex/Jar 2 IoCs

Runs executable file dropped to the device during analysis.

Processes:

com.tencent.mm

ioc	pid	process
/data/user/0/com.tencent.mm/app_apkprotector_dex/classes-v1.bin	4369	com.tencent.mm
/data/user/0/com.tencent.mm/app_apkprotector_dex/classes-v1.bin	4369	com.tencent.mm

Requests enabling of the accessibility settings. 1 IoCs

Processes:

com.tencent.mm

description ioc process

Intent action android.settings.ACCESSIBILITY_SETTINGS com.tencent.mm
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046
Requests disabling of battery optimizations (often used to enable hiding in the background). 1 IoCs
evasion

Processes:

com.tencent.mm

description ioc process

Intent action android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS com.tencent.mm
Uses Crypto APIs (Might try to encrypt user data). 1 IoCs
ransomware

Processes:

com.tencent.mm

description ioc process

Framework API call javax.crypto.Cipher.doFinal com.tencent.mm

description	ioc	process
Intent action	android.settings.ACCESSIBILITY_SETTINGS	com.tencent.mm

description	ioc	process
Intent action	android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	com.tencent.mm

description	ioc	process
Framework API call	javax.crypto.Cipher.doFinal	com.tencent.mm

com.tencent.mm
1⤵
- Makes use of the framework's Accessibility service.
- Loads dropped Dex/Jar
- Requests enabling of the accessibility settings.
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- Uses Crypto APIs (Might try to encrypt user data).
PID:4369

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Scanning

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

/data/user/0/com.tencent.mm/app_apkprotector_dex/classes-v1.bin

Filesize
3.1MB

MD5
aca8ab11deeeed62a960d35ffa984401

SHA1
a20fc21166d30e80f0f8cfcd3ce7c7a11b579960

SHA256
45b81ea4e359f1a2ccd0a4d537dbbc9fa5839a5c1a81ea26febd3abba5df67cf

SHA512
c0637ee40a12db71c5edfbc51bdb2b5cbb562068047a36cb9e3af9e45087c6b8355ea95c5ffeec6b45fb6cf71dd6a3fd2d5fc046b4b340652adbfb3c2e574cb8

Download Submit
/data/user/0/com.tencent.mm/app_apkprotector_dex/classes-v1.bin

Filesize
3.1MB

MD5
aca8ab11deeeed62a960d35ffa984401

SHA1
a20fc21166d30e80f0f8cfcd3ce7c7a11b579960

SHA256
45b81ea4e359f1a2ccd0a4d537dbbc9fa5839a5c1a81ea26febd3abba5df67cf

SHA512
c0637ee40a12db71c5edfbc51bdb2b5cbb562068047a36cb9e3af9e45087c6b8355ea95c5ffeec6b45fb6cf71dd6a3fd2d5fc046b4b340652adbfb3c2e574cb8

Download Submit
/data/user/0/com.tencent.mm/app_apkprotector_dex/classes-v1.bin

Filesize
3.1MB

MD5
aca8ab11deeeed62a960d35ffa984401

SHA1
a20fc21166d30e80f0f8cfcd3ce7c7a11b579960

SHA256
45b81ea4e359f1a2ccd0a4d537dbbc9fa5839a5c1a81ea26febd3abba5df67cf

SHA512
c0637ee40a12db71c5edfbc51bdb2b5cbb562068047a36cb9e3af9e45087c6b8355ea95c5ffeec6b45fb6cf71dd6a3fd2d5fc046b4b340652adbfb3c2e574cb8

Download Submit
/data/user/0/com.tencent.mm/shared_prefs/FedEx.xml

Filesize
133B

MD5
add238640c758c2c41424d84c49e372b

SHA1
38010e6171ab8997480d6bf68731559216be6838

SHA256
007d73e8b77f776ca48c0fd53776e006e17fdc6f4d095a7a8a2cf6aed53fb77b

SHA512
e10ac51a4a1b59a4df33e9569af809d810b1f78194ebde7ac11864257f3c1cd9e366c75a13073067cd43a34d83c771171d5bc7b55590137b833480728fb5eb53

Download Submit
/data/user/0/com.tencent.mm/shared_prefs/FedEx.xml

Filesize
197B

MD5
57b1712320902dbe42479d4730bb9f8b

SHA1
6ca72dfb8df0992d9e245cd93a91b88ebd901689

SHA256
b5a95db0a27ec714f381ab19519e4b9ce1b7313dee5ccb33455f30a551a9aaab

SHA512
62f1274383da60d7a18761f097f01f7b7fcb3874f09179dce55d32bca4e0105006bc8f3f0f7c8618838efc942f798f8b50f891223e30a0a018e209d1895a2f33

Download Submit