cerberus | b4c6e7a2fb3e12086f62fdc9c9affdbcd3cd8afec9c31ddcb8d4e63623d53faa

General

Target

b4c6e7a2fb3e12086f62fdc9c9affdbcd3cd8afec9c31ddcb8d4e63623d53faa.apk
Size

1.1MB
MD5

b7eaef18ad36959d8a8e0b2679e599cc
SHA1

18772cc9692c191a735f3e54c8a4a5e61d560ff3
SHA256

b4c6e7a2fb3e12086f62fdc9c9affdbcd3cd8afec9c31ddcb8d4e63623d53faa
SHA512

c31ed403e8102566ce2f7466ce2351843c71279e639866f9afef55f70423adb2292b13254b54bcf1108c0f8a7bf5e20614bf73eb312432ef20c5f54ec7a44daa
SSDEEP

24576:IMkMbI7/eNErv6PA/zlQ2cq3YuKfC4e+QmzaxCW:vDs7eNEuYRQ2cqIA4XV+xCW

Score

10^/10

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

Malware Config

Extracted

Family

cerberus

C2

http://sappzaebiservak.ru

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

Processes:

com.trick.caution

pid	Process
4333	com.trick.caution
4333	com.trick.caution

Loads dropped Dex/Jar 1 TTPs 2 IoCs

Runs executable file dropped to the device during analysis.

evasion

Download New Code at Runtime

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.trick.caution/app_DynamicOptDex/IXKMOQ.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.trick.caution/app_DynamicOptDex/oat/x86/IXKMOQ.odex --compiler-filter=quicken --class-loader-context=&com.trick.caution

ioc	pid	Process
/data/user/0/com.trick.caution/app_DynamicOptDex/IXKMOQ.json	4358	/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.trick.caution/app_DynamicOptDex/IXKMOQ.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.trick.caution/app_DynamicOptDex/oat/x86/IXKMOQ.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.trick.caution/app_DynamicOptDex/IXKMOQ.json	4333	com.trick.caution

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

Processes:

com.trick.caution

description	ioc	Process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.trick.caution
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.trick.caution
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.trick.caution

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

Processes:

com.trick.caution

ioc	Process
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.trick.caution
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.trick.caution
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.trick.caution
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.trick.caution

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

discovery

System Network Configuration Discovery

T1422

Processes:

com.trick.caution

description	ioc	Process
Framework service call	com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone	com.trick.caution

Requests changing the default SMS application. 2 TTPs 1 IoCs

collection impact

SMS Messages

T1636.004

SMS Control

T1582

Processes:

com.trick.caution

description	ioc	Process
Intent action	android.provider.Telephony.ACTION_CHANGE_DEFAULT	com.trick.caution

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

evasion

User Evasion

T1628.002

Processes:

com.trick.caution

description	ioc	Process
Intent action	android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	com.trick.caution

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

evasion

User Evasion

T1628.002

Processes:

com.trick.caution

description	ioc	Process
Framework API call	android.hardware.SensorManager.registerListener	com.trick.caution

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

persistence

Broadcast Receivers

T1624.001

Processes:

com.trick.caution

description	ioc	Process
Framework service call	android.app.IActivityManager.registerReceiver	com.trick.caution

Checks CPU information 2 TTPs 1 IoCs

System Checks

T1633.001

System Information Discovery

T1426

Processes:

com.trick.caution

description	ioc	Process
File opened for read	/proc/cpuinfo	com.trick.caution

Checks memory information 2 TTPs 1 IoCs

System Checks

T1633.001

System Information Discovery

T1426

Processes:

com.trick.caution

description	ioc	Process
File opened for read	/proc/meminfo	com.trick.caution

com.trick.caution
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:4333
- /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.trick.caution/app_DynamicOptDex/IXKMOQ.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.trick.caution/app_DynamicOptDex/oat/x86/IXKMOQ.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4358

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.trick.caution/app_DynamicOptDex/IXKMOQ.json

Filesize
64KB

MD5
8d47a330ea0c3b85b79ef7be01d91038

SHA1
4bc900bca1dbf260325f75aea8e959598f3ab42d

SHA256
73966cc69c294785a97a927fcd25759550b04b71002a37991492f1ecd1804781

SHA512
1d96ccdb2b7612b8d1f116c9d628d33813d3a385abb53f0d7fb6f63cbb359fe1be8383c47b26e15fc7f8d764c5c3f7af209ac344e07554566bc82145bfb63a3c

Download Submit
/data/data/com.trick.caution/app_DynamicOptDex/IXKMOQ.json

Filesize
64KB

MD5
1c0d6fcf5bf5ea22740e29ddd03f963a

SHA1
4cb64e8eee15e10e4c7af721c9c85ea1e188446a

SHA256
f982900969f8e86e637d1fea740c3954d7a99db0da3464214c1b612d2c15a249

SHA512
c2cdbd62d8307bc0bf5d57eef16ea93a4419f3842eeb0828376ec952f2d648c07b5fb29eee2856ea0e4887cf1bb3cef580ba7ea9122f724df236f230349cb8cb

Download Submit
/data/user/0/com.trick.caution/app_DynamicOptDex/IXKMOQ.json

Filesize
118KB

MD5
2aebcc1ef9c346eaf531c435cad95daf

SHA1
53735f314108e7e40e7ac8c66db993ad24354efa

SHA256
f37c541ec5463bd936a031064cfbbca4200fa628243d9036796cfa2f658d224f

SHA512
180ca8003956cd7b4a12fe5202f52deaebca9e27b18e192ba055853299198f5192bd58e16bdbbefbe8ee826ba7b70225c7d1b4b764fae0a7e48ee49ca8a38459

Download Submit
/data/user/0/com.trick.caution/app_DynamicOptDex/IXKMOQ.json

Filesize
118KB

MD5
08f818e7b9a7b3d91d0c64db2adfe623

SHA1
1e17fc5a6bd7d29307dd04df8bbc4edeb9680e1e

SHA256
252acf5a3ea28210b475900263cc192c3422984522b5e7e50e7ac18bd2e579e9

SHA512
6177922b522f05f44ad45c82d9719bf718e9bf44fcd8354f01339feb0ccf657d5ffcc4060cd37544f116ad55e28c3a64b31f31ab5b2613a935229d595fbcfa36

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads