flubot | a0181864eed9294cac0d278fa0eadabe68b3adb333eeb2e26cc082836f82489d

Analysis

max time kernel
142s
max time network
157s
platform
android_x86
resource
android-x86-arm-20240221-en
resource tags

androidarch:armarch:x86image:android-x86-arm-20240221-enlocale:en-usos:android-9-x86system
submitted
13-03-2024 12:11

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General

Target

a0181864eed9294cac0d278fa0eadabe68b3adb333eeb2e26cc082836f82489d.apk
Size

3.8MB
MD5

c23426edaf37a2fc6fc3a6e5daa17bfa
SHA1

a362e1aaf8bc7a7491b10eab252c3b7ee8532a46
SHA256

a0181864eed9294cac0d278fa0eadabe68b3adb333eeb2e26cc082836f82489d
SHA512

98b78e62a63d87ddc55722658e85acb5f9ba4b792578ca8868e8214e04f4336e9728bec2c386b6afbac4f2183f8232d6e958b215c5c0948746f4254d32ffa2ff
SSDEEP

98304:e5bwkHNRfCwdA0cduVE7AxeQrUsVinobTdp6n:eFo0cdu+AxeMxTdwn

Score

10^/10

flubot banker collection discovery evasion infostealer trojan

Malware Config

Signatures

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

FluBot payload 2 IoCs

Processes:

resource	yara_rule
/data/user/0/com.didiglobal.passenger/code_cache/secondary-dexes/base.apk.classes1.zip	family_flubot
/data/user/0/com.didiglobal.passenger/code_cache/secondary-dexes/base.apk.classes1.zip	family_flubot

Makes use of the framework's Accessibility service 2 TTPs 1 IoCs

Retrieves information displayed on the phone screen using AccessibilityService.

collection evasion

T1516

T1513

Processes:

com.didiglobal.passenger

description	ioc	process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.didiglobal.passenger

Loads dropped Dex/Jar 1 TTPs 2 IoCs

Runs executable file dropped to the device during analysis.

evasion

T1407

Processes:

/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.didiglobal.passenger/code_cache/secondary-dexes/base.apk.classes1.zip --output-vdex-fd=44 --oat-fd=45 --oat-location=/data/user/0/com.didiglobal.passenger/code_cache/secondary-dexes/oat/x86/base.apk.classes1.odex --compiler-filter=quicken --class-loader-context=&com.didiglobal.passenger

ioc	pid	process
/data/user/0/com.didiglobal.passenger/code_cache/secondary-dexes/base.apk.classes1.zip	4345	/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.didiglobal.passenger/code_cache/secondary-dexes/base.apk.classes1.zip --output-vdex-fd=44 --oat-fd=45 --oat-location=/data/user/0/com.didiglobal.passenger/code_cache/secondary-dexes/oat/x86/base.apk.classes1.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.didiglobal.passenger/code_cache/secondary-dexes/base.apk.classes1.zip	4312	com.didiglobal.passenger

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
Uses Crypto APIs (Might try to encrypt user data) 1 IoCs

Processes:

com.didiglobal.passenger

description ioc process

Framework API call javax.crypto.Cipher.doFinal com.didiglobal.passenger

description	ioc	process
Framework API call	javax.crypto.Cipher.doFinal	com.didiglobal.passenger

com.didiglobal.passenger
1⤵
- Makes use of the framework's Accessibility service
- Loads dropped Dex/Jar
- Uses Crypto APIs (Might try to encrypt user data)
PID:4312

/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.didiglobal.passenger/code_cache/secondary-dexes/base.apk.classes1.zip --output-vdex-fd=44 --oat-fd=45 --oat-location=/data/user/0/com.didiglobal.passenger/code_cache/secondary-dexes/oat/x86/base.apk.classes1.odex --compiler-filter=quicken --class-loader-context=&
2⤵
- Loads dropped Dex/Jar
PID:4345

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

/data/data/com.didiglobal.passenger/code_cache/secondary-dexes/tmp-base.apk.classes6892870544714440113.zip
Filesize
545KB

MD5
e85af6d90e26c2e3fc03bc3f9ef72d64

SHA1
0b2770217348ad08b8a455fea78ec734bf3f15ac

SHA256
f4f42f5baabba5c66e9d8ffeced44c9a2303809cdc052361cf9d56f8d731b30c

SHA512
b959647452781b184d35a4274b384cd2c47b2a3e4bf147596fce86fbed82688247a165c56ba8771793683ac2bdeefe9a085e8b0343f23293f31ac525953f0a1a

Download Submit
/data/user/0/com.didiglobal.passenger/code_cache/secondary-dexes/base.apk.classes1.zip
Filesize
2.4MB

MD5
79992f0852cb9aa77c086c2c8a4b89ba

SHA1
58645d7ba402abf54a1045e209a9257c83d8640e

SHA256
18c71efffdbe40af161c649f2ce03ade10f9e7f4079efea6480617bc024c2f9d

SHA512
ee08b7e30010d8e0873499c35fac29b0e817ced6720220175e4b55679e72cd791d74524d435e95c15ad11fb00f1b389a8d3e16181e715432784e9377ec21b667

Download Submit
/data/user/0/com.didiglobal.passenger/code_cache/secondary-dexes/base.apk.classes1.zip
Filesize
2.4MB

MD5
225a4f4ef23e049c8eeef4d9188e5559

SHA1
c9bce30752acf148b0941e187ccf94bd9b410004

SHA256
e2c47c6eaca1f0b8454ec5091a37000e351b1565c20636e30b209d0cbf1de077

SHA512
615d9d1ffc81728a0b5c4f77ef20444f563aa6c81aaaacce3286f99f1c76d737da63750110fb3cf78c187d800d9116c261ac6c26b7038e5cfe33e741f936b0d7

Download Submit