cerberus | 6c3a0cb739e09bc7fddad12ae5affa9db44f798cd194e9a4602183f4f2c97e2c

General

Target

6c3a0cb739e09bc7fddad12ae5affa9db44f798cd194e9a4602183f4f2c97e2c.apk
Size

1.5MB
MD5

a277166d7af353655d6a0ab7ca21868d
SHA1

3d536e7d43a5d46fe4b1b7f914bc2cea56048dee
SHA256

6c3a0cb739e09bc7fddad12ae5affa9db44f798cd194e9a4602183f4f2c97e2c
SHA512

51464e30fef4462e3430efd1074ada2c873e689225f62bce51f4261808b6782e06d511d432021eb1a7dad98b9c7594c89191543a8b401a1a5e9347342e5eed16
SSDEEP

24576:jP64dlzd0MTHp9EyvaI7IihtbxWmi4EPQS+e/Ff5fhHMffLmysWhWmO:u4d5/THp9EFI7V0uI+uFTsffLmfWhLO

Score

10^/10

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

Malware Config

Extracted

Family

cerberus

C2

http://185.246.66.112

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 1 IoCs

stealth trojan evasion

Suppress Application Icon

T1628.001

pid	Process
5065	com.link.milk

Loads dropped Dex/Jar 1 TTPs 1 IoCs

Runs executable file dropped to the device during analysis.

evasion

Download New Code at Runtime

T1407

ioc	pid	Process
/data/user/0/com.link.milk/app_DynamicOptDex/AQGtcgs.json	5065	com.link.milk

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.link.milk
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.link.milk
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.link.milk

Obtains sensitive information copied to the device clipboard 2 TTPs 1 IoCs

Application may abuse the framework's APIs to obtain sensitive information copied to the device clipboard.

collection credential_access impact

Clipboard Data

T1414

Transmitted Data Manipulation

T1641.001

description	ioc	Process
Framework service call	android.content.IClipboard.addPrimaryClipChangedListener	com.link.milk

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.link.milk
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.link.milk
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.link.milk
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.link.milk

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.link.milk

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.link.milk

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.link.milk

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.link.milk

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.link.milk

com.link.milk
1⤵
- Removes its main activity from the application launcher
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- Obtains sensitive information copied to the device clipboard
- Performs UI accessibility actions on behalf of the user
- Queries the mobile country code (MCC)
- 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:5065

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

2

T1628

Suppress Application Icon

1

T1628.001

User Evasion

1

T1628.002

Impair Defenses

1

T1629

Prevent Application Removal

Input Injection

Virtualization/Sandbox Evasion

2

T1633

System Checks

2

T1633.001

Credential Access

Clipboard Data

1

T1414

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

Clipboard Data

1

T1414

Input Capture

2

T1417

GUI Input Capture

1

T1417.002

Keylogging

Screen Capture

Command and Control

Exfiltration

Impact

Data Manipulation

1

T1641

Transmitted Data Manipulation

Input Injection

Replay Monitor

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Downloads

/data/data/com.link.milk/app_DynamicOptDex/AQGtcgs.json

Filesize
34KB

MD5
cccb87b99f84f8ebc281c323c75b79d0

SHA1
8baf110285229441b8529b37fd15cca02ced3781

SHA256
0b72acfacd1cf089ce0b97a4f8db0c4acf8f8bfa1f838832c7ee088ff05a722e

SHA512
eb29983ac33f876a25a1495173501db644c925afc5e4ee62843aaaa1c42adeee7ab63af285261d488ecd7410268f2173724ac8d45cba0fe874fe9cd7c2041293

Download Submit
/data/data/com.link.milk/app_DynamicOptDex/AQGtcgs.json

Filesize
34KB

MD5
9274395df377a6dd50cb94ceed649487

SHA1
4703c1b3fe35526c386942e0b391826e9366fdd3

SHA256
cbc6b9443aaa5532650ebeeffcacef7a3a6ab39fd97c03641c41c36e20380703

SHA512
dae49d5ddd0a20b6ff4180c588c58041ed9804e2487d29f8e6dca962ab56ee473ebb6ae2671411393746871c7adc5bdca52d66b683e10baa633a3a21757c37bb

Download Submit
/data/data/com.link.milk/app_DynamicOptDex/oat/AQGtcgs.json.cur.prof

Filesize
184B

MD5
bf3035084ad9681c111f011eb3af553f

SHA1
366fcb3a5b4dc6c888c52e58728e5d14922ea18a

SHA256
6bdffde7d573e992f96769efdcd542ab16bf4824d3ec238e0ac7aa27f86f0c60

SHA512
07ef6f767774e23347b286e2e4bb4748eef846f1a23a2e5d2bbf5338870b3f19450dae67e86312e32e75647b6b2136ccec1c69c755135558ea2cf4b2b63e35cf

Download Submit
/data/user/0/com.link.milk/app_DynamicOptDex/AQGtcgs.json

Filesize
76KB

MD5
1ab89e3f446c274576dfc5436cb4c670

SHA1
2e2da305e920cbcc5d93fe38fd71d57a80dbdfaf

SHA256
bd1b198ed4d71d4132e3c0976aa92042a00a425284ee5a3fc498ae1ee116610d

SHA512
1443aea7ad9887616f4e8d77bf30177b38a4a25b77601925c77cdf89790c62e5c274fae24fb7036400f32ff968c127848ecb8c8d6cddaa04d21bd970796c1305

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads