cerberus | 660286d120f2f0335648ca4ada8cec297a4a95597bc7f9b80f05e9c86fad4a81

General

Target

660286d120f2f0335648ca4ada8cec297a4a95597bc7f9b80f05e9c86fad4a81.apk
Size

1.6MB
MD5

8b411e4c0aa540005d3f8b40e276f444
SHA1

d6a203cb5177f886ef838ee6b72e4341673e9b4e
SHA256

660286d120f2f0335648ca4ada8cec297a4a95597bc7f9b80f05e9c86fad4a81
SHA512

db8d183f0de54d51b6214e9a75cca6e364cd511cb0a124aafae19ded2f80824a361c62c652d4290a2a3fd5e20b9fdf4e72624885d0fcdbd9ad6638065defafd4
SSDEEP

49152:Bu6JIx4h3cf4ga3n0ifQyh8OqCCumKlLHE:X6a3cf6/CumYLE

Score

10^/10

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

Malware Config

Extracted

Family

cerberus

C2

http://83.136.233.183/

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
4335	com.chest.dish
4335	com.chest.dish

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.chest.dish/app_DynamicOptDex/wdWyD.json	4359	/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.chest.dish/app_DynamicOptDex/wdWyD.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.chest.dish/app_DynamicOptDex/oat/x86/wdWyD.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.chest.dish/app_DynamicOptDex/wdWyD.json	4335	com.chest.dish

Makes use of the framework's Accessibility service 4 TTPs 3 IoCs

Retrieves information displayed on the phone screen using AccessibilityService.

collection defense_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.chest.dish
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.chest.dish
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.chest.dish

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.chest.dish
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.chest.dish
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.chest.dish
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.chest.dish

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.chest.dish

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.chest.dish

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

defense_evasion

User Evasion

T1628.002

description	ioc	Process
Intent action	android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	com.chest.dish

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

defense_evasion

User Evasion

T1628.002

description	ioc	Process
Framework API call	android.hardware.SensorManager.registerListener	com.chest.dish

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.chest.dish

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.chest.dish

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.chest.dish

com.chest.dish
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:4335
- /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.chest.dish/app_DynamicOptDex/wdWyD.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.chest.dish/app_DynamicOptDex/oat/x86/wdWyD.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4359

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.chest.dish/app_DynamicOptDex/oat/wdWyD.json.cur.prof

Filesize
244B

MD5
0b9cf33c341730b29e71b3101ccd4b90

SHA1
1be27f5d1a15fc07f20c3f335a1d46361477b0e2

SHA256
6d685439c14b67d249379548038c8fcc25a9a0c50c7322e5cf8587687bf5efe9

SHA512
fa684897bd6d40eacbf8eb07d73cf4df4d54ae6087e310a59f88005ab544179f60db8f3c8c6d038014c923cf27a8fa22092e81a7ea1f3eefba8a6d204f7531aa

Download Submit
/data/data/com.chest.dish/app_DynamicOptDex/wdWyD.json

Filesize
64KB

MD5
ecd9a435e6676cc8556c633b75e1a4b7

SHA1
50abc724fbe708092ce34877050444ce5ae7e07c

SHA256
d939d97f0093ab0837ca3b0527b7c7705e0a1eea8e41ed3917fd627dab0f6856

SHA512
34790fa21f1420d3b4e0b8675917a3cb7b595fcaf4d9d7e52105b46940e5c496ed893e558de055e7f751c399ec30e597e76f9a6e5491191f0032e194abdd256e

Download Submit
/data/data/com.chest.dish/app_DynamicOptDex/wdWyD.json

Filesize
64KB

MD5
50e789455231bb888034e3648f52444e

SHA1
8ba67372f1d9ac156399a7c0e758894aec8d958a

SHA256
ffef92c66642ba8a1786e1927d222ff369d3a5d0b55e6d2f15c0e99ca4404dc6

SHA512
0e12b5a13d8a7e8872a9b4ca8a8ebd48646f5a1418faf25dcd1eca5987816566c1b160f39eaf2d41929eed758f7ff8d9e85f24ad7f5ffe00cfa424c03b28edca

Download Submit
/data/user/0/com.chest.dish/app_DynamicOptDex/wdWyD.json

Filesize
118KB

MD5
9fa1d3bb273dc75a540b67525ed18c7c

SHA1
ab315e871af1c869477fdc2e4ef8330932792288

SHA256
0512063947759a068a989abdf1bd1b298c6f7efb76a813a92714d9f9711a9561

SHA512
87d225e5e0fd47d40d35eba1d8fffa3ca6f78aec6a20dce6330d65dc9c24114b61d18503468bb2e261253859559cdd7c2236a0a293ad9b8fa149863927e4a354

Download Submit
/data/user/0/com.chest.dish/app_DynamicOptDex/wdWyD.json

Filesize
118KB

MD5
319edfc7800cd95f601e378877da93dd

SHA1
48dfc57aab013d0edafe34829dbe91ff7eac0fc6

SHA256
633eef55f1182663b9f0cefe056fc85a9fd1c5a4a146201a17677074c10afb85

SHA512
7b9de6b544731c3134e40503c73d261c65f0234ae511ba46e3829fa4d836b2d1f993e1082340ba1dcd89c4f1a8d3dd5a5bf83eaf9bf5ad004c0758d80cf7d1f9

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads