cerberus | 621445ec34bf63e4cb9af752431dd5ed595e1001fefee5fc2c05920fd9739fba

General

Target

621445ec34bf63e4cb9af752431dd5ed595e1001fefee5fc2c05920fd9739fba.apk
Size

1.2MB
MD5

74f307885e245707e7b0e99621866f52
SHA1

1c5c287a03e2f94fdcee35dd60f9d820b7350dd6
SHA256

621445ec34bf63e4cb9af752431dd5ed595e1001fefee5fc2c05920fd9739fba
SHA512

dded30f7106bc3a65de9e10f1466434b828f50f4a9636609b18e108c3adad0783e9810d36e5e4f2776dd26c29d8b1de499b201a024bc889743e93cb65e3f89fd
SSDEEP

24576:zMLMlWybpzt6KsSnxWnj5KBuZfJTahBqcyKb86+mv4I4mHeeq:gYIOz6KsSnxWnVKBuZBEljb86+Y4ueeq

Score

10^/10

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

Malware Config

Extracted

Family

cerberus

C2

http://sapp300smikaniytraktorista.ru

Signatures

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

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

stealth trojan evasion

Suppress Application Icon

T1628.001

pid	Process
4258	com.suggest.express
4258	com.suggest.express

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.suggest.express/app_DynamicOptDex/Gf.json	4283	/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.suggest.express/app_DynamicOptDex/Gf.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.suggest.express/app_DynamicOptDex/oat/x86/Gf.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.suggest.express/app_DynamicOptDex/Gf.json	4258	com.suggest.express

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	com.suggest.express
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.suggest.express
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.suggest.express

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.suggest.express
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.suggest.express
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.suggest.express
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.suggest.express

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.suggest.express

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.suggest.express

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.suggest.express

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.suggest.express

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.suggest.express

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.suggest.express

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.suggest.express

com.suggest.express
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:4258
- /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.suggest.express/app_DynamicOptDex/Gf.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.suggest.express/app_DynamicOptDex/oat/x86/Gf.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4283

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

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Downloads

/data/data/com.suggest.express/app_DynamicOptDex/Gf.json

Filesize
64KB

MD5
b235dfff3c76388ac85c006a8ac0e4a6

SHA1
c4ea48f68301c433a3b74480b20ea2511018a7e1

SHA256
2513387a62a9eb85564878d53681b6d29491b7b8270f9112ca38bfe330529e1f

SHA512
715094d2422661351cf367b9e336aa39438f0f248b730a8837c01035dde1dd24678f4ffeb613aa5943f00c3b8a0c0fd1858067fb7285b13c0fbe19831e9215b1

Download Submit
/data/data/com.suggest.express/app_DynamicOptDex/Gf.json

Filesize
64KB

MD5
43106f9036f82d240183d8b0852c51bb

SHA1
cb9b8e6a57a9e7c0de526dc1ae4bd69f0a0be375

SHA256
44cfa5f146a96b17c421c408ca8ee7e299d1ed3110633c407669bf6730f9eeb7

SHA512
08e09e395ee629f21b926f0f301700aa5862f7c992b38ff35df54726c4f29af3320ac45e8f34ba1a25a34fe907342bfedcb497aceb6c2be829e2755a4dfcabc2

Download Submit
/data/data/com.suggest.express/app_DynamicOptDex/oat/Gf.json.cur.prof

Filesize
245B

MD5
b5ea9125fde9d00fd84c92d6d4703f03

SHA1
576baba9247cf9392c4f325d92160af46f9b04d3

SHA256
4490cd02987488de4b90196a650dacf9d2e1ba1fe2fa483db4c22b317ed42f8a

SHA512
0941e5fcded6dbe8b44e4e94eaeb24dad003af93b397a222398d5f16f0260939533858df17e75a2e3aab39da872f559f8badee21eb1cbc391fb14798b92a8c51

Download Submit
/data/user/0/com.suggest.express/app_DynamicOptDex/Gf.json

Filesize
118KB

MD5
b75978f8c751f9212313c72df7b0e09b

SHA1
d9a72d118114bd46a9bea3a6e87da96d89386da0

SHA256
4efff272e463efe033dc43cabff56c04b5502e26aae63167b22bd18fbed02d20

SHA512
49bdecb8b03ee1619e8569f20e42039ecae9140689db0caebbe9e6cff101117a99a87ec7ab9b2a53e08510e964fe2e0f7470befa13e3ad99057b8633f66cb27a

Download Submit
/data/user/0/com.suggest.express/app_DynamicOptDex/Gf.json

Filesize
118KB

MD5
f5f7cfe297dd285e5d199ff01b95f110

SHA1
11d5c88a36d9409b4d23c4ab4d96c35d1a99c3f8

SHA256
fbb800072f3201a3563f1df05315b0a598d7746ef25521ec97579b08e76501d2

SHA512
caf63d4a8c7beae9068aef0df6ed5bc77ba81a969214f409fa55d1728b5d4e0e5d361b78188915164136e80a1a8ecb095da3b79b8824c02815637f906837f06e

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads