flubot | 03ff32c8b623c31c2ae86880870dc71e1105f533a71843eec485bf7a802944d6

General

Target

03ff32c8b623c31c2ae86880870dc71e1105f533a71843eec485bf7a802944d6.apk
Size

3.4MB
MD5

dba8577411816757efadbd843b146bfa
SHA1

632d4097ed7fb4a5c736478e00f9e9e52c715718
SHA256

03ff32c8b623c31c2ae86880870dc71e1105f533a71843eec485bf7a802944d6
SHA512

b91cf3e6d5e33787e421b9bc959b56934ca4c3e2bc1919e3b92bd12c7b1cdb0c48d04669a9f61f2917eb3391cd4429f34e46157cd3836b243b9766045648d48c
SSDEEP

98304:aVrK0YtG9XCe8K7dPdMrwYO3vF1XeXK25xIevRilJ5jNRyOYuZD:alKvGEmdSrwpDYLvRiljvy2D

Score

10^/10

flubot banker collection credential_access discovery evasion impact infostealer persistence trojan

Malware Config

Signatures

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

FluBot payload 2 IoCs

resource	yara_rule
behavioral1/files/fstream-5.dat	family_flubot
behavioral1/memory/4310-3.dex	family_flubot

Loads dropped Dex/Jar 1 TTPs 6 IoCs

Runs executable file dropped to the device during analysis.

evasion

Download New Code at Runtime

T1407

ioc	pid	Process
/data/user/0/bobo.eoeo.roro/app_apkprotector_dex/classes-v1.bin	4310	bobo.eoeo.roro
/data/user/0/bobo.eoeo.roro/app_apkprotector_dex/classes-v1.bin	4335	/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/bobo.eoeo.roro/app_apkprotector_dex/classes-v1.bin --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/bobo.eoeo.roro/app_apkprotector_dex/oat/x86/classes-v1.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/bobo.eoeo.roro/app_apkprotector_dex/classes-v1.bin	4310	bobo.eoeo.roro
/data/user/0/bobo.eoeo.roro/app_ded/o26sItc0OgkfllnBvXfgzBK3NoXRlDxw.dex	4310	bobo.eoeo.roro
/data/user/0/bobo.eoeo.roro/app_ded/o26sItc0OgkfllnBvXfgzBK3NoXRlDxw.dex	4361	/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/bobo.eoeo.roro/app_ded/o26sItc0OgkfllnBvXfgzBK3NoXRlDxw.dex --output-vdex-fd=41 --oat-fd=45 --oat-location=/data/user/0/bobo.eoeo.roro/app_ded/oat/x86/o26sItc0OgkfllnBvXfgzBK3NoXRlDxw.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/bobo.eoeo.roro/app_ded/o26sItc0OgkfllnBvXfgzBK3NoXRlDxw.dex	4310	bobo.eoeo.roro

Makes use of the framework's Accessibility service 4 TTPs 3 IoCs

Retrieves information displayed on the phone screen using AccessibilityService.

collection evasion credential_access

Input Injection

T1516

Screen Capture

T1513

Keylogging

T1417.001

GUI Input Capture

T1417.002

description	ioc	Process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	bobo.eoeo.roro
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	bobo.eoeo.roro
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	bobo.eoeo.roro

Makes use of the framework's foreground persistence service 1 TTPs 1 IoCs

Application may abuse the framework's foreground service to continue running in the foreground.

evasion persistence

Foreground Persistence

T1541

description	ioc	Process
Framework service call	android.app.IActivityManager.setServiceForeground	bobo.eoeo.roro

Performs UI accessibility actions on behalf of the user 1 TTPs 2 IoCs

Application may abuse the accessibility service to prevent their removal.

evasion

Prevent Application Removal

T1629.001

ioc	Process
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	bobo.eoeo.roro
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	bobo.eoeo.roro

Queries information about active data network 1 TTPs 1 IoCs

discovery

System Network Connections Discovery

T1421

description	ioc	Process
Framework service call	android.net.IConnectivityManager.getActiveNetworkInfo	bobo.eoeo.roro

Requests changing the default SMS application. 2 TTPs 1 IoCs

collection impact

SMS Messages

T1636.004

SMS Control

T1582

description	ioc	Process
Intent action	android.provider.Telephony.ACTION_CHANGE_DEFAULT	bobo.eoeo.roro

Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs

evasion

User Evasion

T1628.002

description	ioc	Process
Intent action	android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	bobo.eoeo.roro

Requests enabling of the accessibility settings. 1 IoCs

description	ioc	Process
Intent action	android.settings.ACCESSIBILITY_SETTINGS	bobo.eoeo.roro

Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs

impact

Data Encrypted for Impact

T1471

description	ioc	Process
Framework API call	javax.crypto.Cipher.doFinal	bobo.eoeo.roro

bobo.eoeo.roro
1⤵
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- Makes use of the framework's foreground persistence service
- Performs UI accessibility actions on behalf of the user
- Queries information about active data network
- Requests changing the default SMS application.
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- Requests enabling of the accessibility settings.
- Uses Crypto APIs (Might try to encrypt user data)
PID:4310
- /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/bobo.eoeo.roro/app_apkprotector_dex/classes-v1.bin --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/bobo.eoeo.roro/app_apkprotector_dex/oat/x86/classes-v1.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4335
- /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/bobo.eoeo.roro/app_ded/o26sItc0OgkfllnBvXfgzBK3NoXRlDxw.dex --output-vdex-fd=41 --oat-fd=45 --oat-location=/data/user/0/bobo.eoeo.roro/app_ded/oat/x86/o26sItc0OgkfllnBvXfgzBK3NoXRlDxw.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4361

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Persistence

Foreground Persistence

1

T1541

Privilege Escalation

Defense Evasion

Download New Code at Runtime

1

T1407

Foreground Persistence

1

T1541

Hide Artifacts

1

T1628

User Evasion

1

T1628.002

Impair Defenses

1

T1629

Prevent Application Removal

Input Injection

Credential Access

Input Capture

2

T1417

GUI Input Capture

1

T1417.002

Keylogging

1

T1417.001

Discovery

System Network Connections Discovery

1

T1421

Lateral Movement

Collection

Input Capture

2

T1417

GUI Input Capture

1

T1417.002

Keylogging

1

T1417.001

Protected User Data

1

T1636

SMS Messages

Screen Capture

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

Input Injection

SMS Control

Replay Monitor

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Downloads

/data/data/bobo.eoeo.roro/app_apkprotector_dex/classes-v1.bin

Filesize
120KB

MD5
c384c5cdaf8f3edfa29389f2de2effea

SHA1
5e5dad9692cf5794e3ff7b99a64e6555399bc56f

SHA256
0f145035801825a43c9aba19597cb6ee6737088c4f058a66d6b87f144a046062

SHA512
7ea82780f2a46f8c297a35c16bb2e51136d4297fd2c4e6409b595b97d9490dfd65d00352a07ca6cd86b4f2fbfceeb5ab8d15f515395104be61629af56046c780

Download Submit
/data/data/bobo.eoeo.roro/app_ded/o26sItc0OgkfllnBvXfgzBK3NoXRlDxw.dex

Filesize
2.2MB

MD5
9e65527aa01a08d78e682a4468829c91

SHA1
0afef1453bec2cd1553c142ab911ebca060ef9c3

SHA256
87b8faa875cfbfddfcbfacc07125c05ff2f36ab90e12b18ff8d4d6ab13301c1f

SHA512
da2c33d7535f59ab30d7f637fd081b7cb5fadfcfe5d66c28b295c340d65d4b8bb64335c10e82133b54a163fb195bd7a6647933bdfe5df61c4f8d5a1654a1831f

Download Submit
/data/user/0/bobo.eoeo.roro/app_apkprotector_dex/classes-v1.bin

Filesize
120KB

MD5
5e0ca1f47d3a8db8a8124c2cc1764665

SHA1
4b12e946982d6734639b598e1c07de978742d57d

SHA256
82bda6c0b3a3a18143df2b9719f11a455bee95300adb6eec16ec3c0cb210edf9

SHA512
447bcbf794f066e711e7d3f517c04d15ec705e4e1e271d82428abb467c888fb3ee5dc235192087f2df7f57baea974a2feb862671f4eb81605468962ace39712b

Download Submit
/data/user/0/bobo.eoeo.roro/app_ded/o26sItc0OgkfllnBvXfgzBK3NoXRlDxw.dex

Filesize
2.2MB

MD5
ae8775a4838c098080b93491ce49b698

SHA1
836fa833c6db623c8d29a66027d5e27704a1641b

SHA256
b4a8345d5fb9561ba96c02638ceb1ceafcf19d09c3ab0ed3726c32477575d20f

SHA512
9561ec0b5c1018dcdd254427af7d17a8e9584592e7ec2febaae7d9ca10feb6f2d6f50b7a4ede934b44446ad864e5e747dea9773ead0f3d27e188d56c3b323e90

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads