cerberus | c23337d404c6c8c8856bbf249337d55b73b7fcfbdba53cb458739b8bcc39ba2f

General

Target

c23337d404c6c8c8856bbf249337d55b73b7fcfbdba53cb458739b8bcc39ba2f.apk
Size

1.7MB
MD5

4f46fe3d2566ade3dc1469c3c1b35787
SHA1

08836d97042051e54c9caeddcaf53f8074f5d882
SHA256

c23337d404c6c8c8856bbf249337d55b73b7fcfbdba53cb458739b8bcc39ba2f
SHA512

8bcc2fb1b29e0c7d540287278c92a9138f5d80efedfe580e98586d14f0da82b0b7764f3327875635d4ecd3bebad03b5bb6a6d15561cc94509e753ce8be84ff68
SSDEEP

49152:esE0VvrxL70Dlr/wUYSl6W6CyZmUo1SHTfLLt:PvdLMrFyZxbHt

Score

10^/10

cerberus banker collection credential_access discovery evasion impact infostealer persistence rat stealth trojan

Malware Config

Extracted

Family

cerberus

C2

http://188.120.236.119/

Signatures

Cerberus
An Android banker that is being rented to actors beginning in 2019.
banker trojan infostealer evasion rat cerberus
Cerberus family
cerberus

Removes its main activity from the application launcher 1 TTPs 2 IoCs

stealth trojan evasion

Suppress Application Icon

T1628.001

pid	Process
4254	com.year.shed
4254	com.year.shed

Loads dropped Dex/Jar 1 TTPs 2 IoCs

Runs executable file dropped to the device during analysis.

evasion

Download New Code at Runtime

T1407

ioc	pid	Process
/data/user/0/com.year.shed/app_DynamicOptDex/QF.json	4280	/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.year.shed/app_DynamicOptDex/QF.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.year.shed/app_DynamicOptDex/oat/x86/QF.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.year.shed/app_DynamicOptDex/QF.json	4254	com.year.shed

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.findAccessibilityNodeInfosByText	com.year.shed
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.year.shed
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.year.shed

Queries the phone number (MSISDN for GSM devices) 1 TTPs
discovery

System Network Configuration Discovery
T1422

Performs UI accessibility actions on behalf of the user 1 TTPs 4 IoCs

Application may abuse the accessibility service to prevent their removal.

evasion

Prevent Application Removal

T1629.001

ioc	Process
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.year.shed
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.year.shed
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.year.shed
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.year.shed

Queries the mobile country code (MCC) 1 TTPs 1 IoCs

discovery

System Network Configuration Discovery

T1422

description	ioc	Process
Framework service call	com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone	com.year.shed

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	com.year.shed

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	com.year.shed

Listens for changes in the sensor environment (might be used to detect emulation) 1 TTPs 1 IoCs

evasion

User Evasion

T1628.002

description	ioc	Process
Framework API call	android.hardware.SensorManager.registerListener	com.year.shed

Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs

persistence

Broadcast Receivers

T1624.001

description	ioc	Process
Framework service call	android.app.IActivityManager.registerReceiver	com.year.shed

Checks CPU information 2 TTPs 1 IoCs

System Checks

T1633.001

System Information Discovery

T1426

description	ioc	Process
File opened for read	/proc/cpuinfo	com.year.shed

Checks memory information 2 TTPs 1 IoCs

System Checks

T1633.001

System Information Discovery

T1426

description	ioc	Process
File opened for read	/proc/meminfo	com.year.shed

com.year.shed
1⤵
- Removes its main activity from the application launcher
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- Performs UI accessibility actions on behalf of the user
- Queries the mobile country code (MCC)
- Requests changing the default SMS application.
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- Listens for changes in the sensor environment (might be used to detect emulation)
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Checks CPU information
- Checks memory information
PID:4254
- /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.year.shed/app_DynamicOptDex/QF.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.year.shed/app_DynamicOptDex/oat/x86/QF.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4280

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1624

Broadcast Receivers

1

T1624.001

Privilege Escalation

Defense Evasion

Download New Code at Runtime

1

T1407

Hide Artifacts

3

T1628

Suppress Application Icon

1

T1628.001

User Evasion

2

T1628.002

Impair Defenses

1

T1629

Prevent Application Removal

Input Injection

Virtualization/Sandbox Evasion

2

T1633

System Checks

2

T1633.001

Credential Access

Input Capture

2

T1417

GUI Input Capture

1

T1417.002

Keylogging

1

T1417.001

Discovery

System Information Discovery

2

T1426

System Network Configuration Discovery

2

T1422

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

Input Injection

SMS Control

Replay Monitor

Loading Replay Monitor...

Downloads

/data/data/com.year.shed/app_DynamicOptDex/QF.json

Filesize
64KB

MD5
dc4dfe03927ab255440ae50bf17f5b13

SHA1
5b0b36f59f744b9a4ba2caeead09938f6aa66d84

SHA256
02594b578a4ce0efc8f8e9a131f59d593bbaa918b889caf0633f518447ba5f8d

SHA512
fd3d777c0073a2484455bdf12d2b346a6e35b11efc3f180ec26ba2c73829beebb7e85c529b2b61c6b148e05e6243a7abc950db19e93609dc1623427e367f1f50

Download Submit
/data/data/com.year.shed/app_DynamicOptDex/QF.json

Filesize
64KB

MD5
9ff89845fc65fcbf1653efda2d1382ea

SHA1
b7c8adc40acbb33d3ee572dfb08df987500d602c

SHA256
0c7c8a7e3c9edd774c7234ed8b400e20862a67fac4199001397fee1ecfd2f9e6

SHA512
75470a63f658544edcc4cef7816db22b506617fd33f368321e252f98e82a15583618be382fa2b68a3aa982fa2ffa33f6b17735a43fa9c6005577c99edc0a8087

Download Submit
/data/data/com.year.shed/app_DynamicOptDex/oat/QF.json.cur.prof

Filesize
237B

MD5
768f710106a29a1264da59f3243e326b

SHA1
9637419173cb7323018eb5d5d840feb4a4046e51

SHA256
d0ade8d2cb4746f1278bdf886688a06c82a53b8066185f792db96ff226249219

SHA512
7147ca74ba0dcbb142f5ada426627e80337fdedf68bb0148e335f75fdb46bdb6f1efaedce8a5389c2add89d3404c6032382c8618536b4e41a17338adb4ec26e7

Download Submit
/data/user/0/com.year.shed/app_DynamicOptDex/QF.json

Filesize
118KB

MD5
36a3599cb0e3362740e52aaa6b26559a

SHA1
9233cf74d30378b0220ddca8749e5afc77a664a0

SHA256
1e49d0a2c8285a660574d2e3da785df9ae6a566e6a222474ed08ebe2fc8760ec

SHA512
26b5b502ea97fec4d4e8aeb3879d58272d167731d99c1a0ec880c7e58ffd866e6fe8f463e8a4ff018a27de3b5208adb3350f8a87451f47851f0e436cd7c8388f

Download Submit
/data/user/0/com.year.shed/app_DynamicOptDex/QF.json

Filesize
118KB

MD5
d3a1e2a92c440d9a1127ed0df9d6a87f

SHA1
a81c6f74437911ddcf9cea3e3f4bfce579d7d07d

SHA256
c19624de740dee2572875175e52756ec38803d9a818091aa0228e880e5f79a87

SHA512
a6805b109027c00cf94d76a5cd1a15980a792a16d6b60cd00e23bdc9d8579c50460b8e1fde29127aa4c0660bd0e808518359f948ec1c6ddea14c29407ea9d703

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

Loading Replay Monitor...

Downloads