cerberus | 3bdc7851cfe7061754245395394a9b41c8e4fe02c19c24c9c3514911f7facfc6

General

Target

3bdc7851cfe7061754245395394a9b41c8e4fe02c19c24c9c3514911f7facfc6.apk
Size

1.9MB
MD5

da2eb919aa79fded7be1544b865f2d20
SHA1

69985fa4ef07e8e58e806a51a7a0bb48645883a0
SHA256

3bdc7851cfe7061754245395394a9b41c8e4fe02c19c24c9c3514911f7facfc6
SHA512

bafa6b085cbf3e0824174382bef48ece2b3f2c7c96831235d9866a4b7424657bf9f561c2cab8be53528126561ae0b67b0369a2f4f4227dc58107cad209164150
SSDEEP

49152:O8X00gENWRQIHObyp0J08013lorOYiZOcl1dIpkJcRp5jBT:OW0B9GYCOYiyM+jBT

Score

10^/10

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

Malware Config

Extracted

Family

cerberus

C2

http://petsapps.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

pid	Process
4253	com.confirm.settle
4253	com.confirm.settle

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.confirm.settle/app_DynamicOptDex/jWYssL.json	4277	/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.confirm.settle/app_DynamicOptDex/jWYssL.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.confirm.settle/app_DynamicOptDex/oat/x86/jWYssL.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.confirm.settle/app_DynamicOptDex/jWYssL.json	4253	com.confirm.settle

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.confirm.settle
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.confirm.settle
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.confirm.settle

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.confirm.settle
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.confirm.settle
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.confirm.settle
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.confirm.settle

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.confirm.settle

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.confirm.settle

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.confirm.settle

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.confirm.settle

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.confirm.settle

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.confirm.settle

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.confirm.settle

com.confirm.settle
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:4253
- /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.confirm.settle/app_DynamicOptDex/jWYssL.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.confirm.settle/app_DynamicOptDex/oat/x86/jWYssL.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4277

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.confirm.settle/app_DynamicOptDex/jWYssL.json

Filesize
64KB

MD5
0abb3676fa3f98bff06e28daf61e369b

SHA1
dc6c2cd20f58840e468fb7d4826dad13c74ed825

SHA256
55035a123bd690cdc5ecc7cb8b4267db0dbd67a2982fa9358be06f0d704ee27a

SHA512
3ee778e86b3306318e0ed35e174b26d7aef8e8973eae7ac9c394c90cca740c9e1461ef921f67f2b65cc9220e018c00e99652f348878a4ddc2844160ded42602e

Download Submit
/data/data/com.confirm.settle/app_DynamicOptDex/jWYssL.json

Filesize
64KB

MD5
480d510796599bae286039d89e9da887

SHA1
37973dea041dc8777b2bf64b4922eced2415c243

SHA256
8351a06904af56e558f4961e41544dc057074d79e5aec259ffb2c68a516efdfc

SHA512
74be505e5b1ed0c3c4a26692a330b1853e795729cba5e290cd2ad9b820c6d6e4a194986dc168e259abc6d91a241976072190fee55c47321006be82877d77f14e

Download Submit
/data/data/com.confirm.settle/app_DynamicOptDex/oat/jWYssL.json.cur.prof

Filesize
246B

MD5
c235f9138c93a137d4e7a30f118d0134

SHA1
60eb19ecc2cbcc2d801c95279556a401c38e3b0e

SHA256
d492fd2ec7e3033cd65e9159ec214f70be524c45dfd7365adf17a05ece7fb78c

SHA512
3a02887d468cef4080c2752d9cfa7838e69eb68c83b22f67fa6ca1e115d1d747d5deea25944fd53950cbf7f64c1c0b771f7333f7659ac4c865a069b72a705999

Download Submit
/data/user/0/com.confirm.settle/app_DynamicOptDex/jWYssL.json

Filesize
118KB

MD5
43544596ca5d104973ecaf3c3d14ca5a

SHA1
a639c69c32a6cdfd85f14eb7b636f755d253d85f

SHA256
176c3c8defab6ecdbab10e8a4769c60c0d604a1aec8968cee6ca2e6087a95d3d

SHA512
6eb0d712222350ee30bfbaf3f42bbafc5b2aac02ad377d5ea5806193c8bc9a2a82f0d2e7b59e2fff84b7f83dd05d96d54b02ab81b32395abda14e04bc30a9a2c

Download Submit
/data/user/0/com.confirm.settle/app_DynamicOptDex/jWYssL.json

Filesize
118KB

MD5
a71bb5324fc5a2c69fa994fd4408a228

SHA1
0bfb0c05127251098d7905aa702bcca3d365770f

SHA256
3f4ff666cc0a09a322be4c8af86832f3fa688319d25b32a21353527d81a8691b

SHA512
8cdec039b85990457eb47ebb415dc7fdf796bf1b14d9a81480941e9237f40f8dfefb2e40fc28c580a463b22612a8dd67bb8b40db6f7b5180fc129b7f1214b9b0

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads