cerberus | 878ea6769a0a95fe62c0041069db6f97fa29d29cb9fbb4adc345ea5e0cd077eb

General

Target

878ea6769a0a95fe62c0041069db6f97fa29d29cb9fbb4adc345ea5e0cd077eb.apk
Size

1.9MB
MD5

d836325c640b4ffb3ccd12734ed567ba
SHA1

97d5b8e7d149c5c3133a87c642c9dc80cb356e26
SHA256

878ea6769a0a95fe62c0041069db6f97fa29d29cb9fbb4adc345ea5e0cd077eb
SHA512

da4ac92a75c8f6e75ab3a153ddfd73c8f0a748e432ab1ca0d9858c6739077fd84fce8c4aa4e0636d94abc940bd41c9bfc43ea054956908120e6820efbeaddb9f
SSDEEP

49152:nvXpvTyX05l4QNU4xnMeQ0J0801R5gLGGLJmcl1dIpkJAR95bXDg:vXxTyX0kiUW/GGLaM+bc

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

Processes:

com.across.load

pid	Process
4240	com.across.load
4240	com.across.load

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

ioc	pid	Process
/data/user/0/com.across.load/app_DynamicOptDex/nAQ.json	4265	/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.across.load/app_DynamicOptDex/nAQ.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.across.load/app_DynamicOptDex/oat/x86/nAQ.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.across.load/app_DynamicOptDex/nAQ.json	4240	com.across.load

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.across.load

description	ioc	Process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.across.load
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.across.load
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.across.load

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.across.load

ioc	Process
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.across.load
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.across.load
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.across.load
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.across.load

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

discovery

System Network Configuration Discovery

T1422

Processes:

com.across.load

description	ioc	Process
Framework service call	com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone	com.across.load

Requests changing the default SMS application. 2 TTPs 1 IoCs

collection impact

SMS Messages

T1636.004

SMS Control

T1582

Processes:

com.across.load

description	ioc	Process
Intent action	android.provider.Telephony.ACTION_CHANGE_DEFAULT	com.across.load

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

evasion

User Evasion

T1628.002

Processes:

com.across.load

description	ioc	Process
Intent action	android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	com.across.load

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

evasion

User Evasion

T1628.002

Processes:

com.across.load

description	ioc	Process
Framework API call	android.hardware.SensorManager.registerListener	com.across.load

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

persistence

Broadcast Receivers

T1624.001

Processes:

com.across.load

description	ioc	Process
Framework service call	android.app.IActivityManager.registerReceiver	com.across.load

Checks CPU information 2 TTPs 1 IoCs

System Checks

T1633.001

System Information Discovery

T1426

Processes:

com.across.load

description	ioc	Process
File opened for read	/proc/cpuinfo	com.across.load

Checks memory information 2 TTPs 1 IoCs

System Checks

T1633.001

System Information Discovery

T1426

Processes:

com.across.load

description	ioc	Process
File opened for read	/proc/meminfo	com.across.load

com.across.load
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:4240
- /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.across.load/app_DynamicOptDex/nAQ.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.across.load/app_DynamicOptDex/oat/x86/nAQ.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4265

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

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Downloads

/data/data/com.across.load/app_DynamicOptDex/nAQ.json

Filesize
64KB

MD5
f7676008c73ecdff34a49dbbf70ff3c9

SHA1
0c6eef12a3e26e1815b122a0a6a2fc76efcffe6d

SHA256
063d8e9a718b3a6cf077f9828bd211a4dbf186b89c849f02bd0ddb7583b4b381

SHA512
036f56cc42e8855a64ed8d036397a19697e4b3c093253fe1ae4107ef10ebbf3c95170e8f2f26347b097c13d13fbce36d64d02cca3db7e4f382019814f115bd2a

Download Submit
/data/data/com.across.load/app_DynamicOptDex/nAQ.json

Filesize
64KB

MD5
f030e6177b5cb7748d676b3facf9564d

SHA1
d1848e922632e7dcd87b0d1d70ff5af6b158ff2a

SHA256
3d015fbe3687ab0c5d3d2546b971be522c7071f3d872a57e3e767bb2c0f4d853

SHA512
a184ec3cc70d1131ab81bb71dd565de56d7f85973cc77d3cc0645ee5dc946bba4d8d864f8f80cfb930c5ba7da5d6decbbc0a00de961bd39c1a37e175fc6d070d

Download Submit
/data/data/com.across.load/app_DynamicOptDex/oat/nAQ.json.cur.prof

Filesize
244B

MD5
f2d2a84bafbc94dd83efb1b2a2dfce7a

SHA1
d3a0b50aa65cd686fd7751f0cd1040510f6a8cc8

SHA256
3b95811cfd5b30c5d7e6c5e79753867de73e9d11b2b400e1ddf7b3d88740c367

SHA512
805a7f95f8e0cd221cea241fd27d1225b5d7e6450fec38452c0d2d2ce0d204deb8cb7df48a27895a52d924ca21f76e8be7c4c4c9158572136c3bfdc1300b80b7

Download Submit
/data/user/0/com.across.load/app_DynamicOptDex/nAQ.json

Filesize
118KB

MD5
43544596ca5d104973ecaf3c3d14ca5a

SHA1
a639c69c32a6cdfd85f14eb7b636f755d253d85f

SHA256
176c3c8defab6ecdbab10e8a4769c60c0d604a1aec8968cee6ca2e6087a95d3d

SHA512
6eb0d712222350ee30bfbaf3f42bbafc5b2aac02ad377d5ea5806193c8bc9a2a82f0d2e7b59e2fff84b7f83dd05d96d54b02ab81b32395abda14e04bc30a9a2c

Download Submit
/data/user/0/com.across.load/app_DynamicOptDex/nAQ.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

Replay Monitor

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Downloads