spynote | KrinkoOp[.]apk

General

Target

KrinkoOp.apk
Size

5.4MB
MD5

de099258fa67f1801cc3784160bc37dc
SHA1

7e9e8f223a23e297d124550775ddbd47e5cb76d2
SHA256

26f0a9ba3832d464e2b26ad4f30b0e431221fbb99081ec0c833fa00976446023
SHA512

d381ff7dc95c15e613baf6a0a47f8b6f4bfe1ba97fe89b03e8302ddc8ea2972bd1eb020eaaba3bdc37cac1d577cbb5a9ebe665745e9e3ddc61cfc0749265efd4
SSDEEP

98304:9Y9gedMDQEiR5VKUAgR3Vuf7ymmd6Lg922QxroTUe0t:29g6MRwQK3OwGg9LPT2t

Score

10^/10

spynote

Malware Config

Signatures

Spynote family
spynote

Spynote payload 1 IoCs

Processes:

resource	yara_rule
static1/unpack001/childapp.apk	family_spynote

Attempts to obfuscate APK file format
Applies obfuscation techniques to the APK format in order to hinder analysis

Declares broadcast receivers with permission to handle system events 1 IoCs

Processes:

description	ioc
Required by device admin receivers to bind with the system. Allows apps to manage device administration features.	android.permission.BIND_DEVICE_ADMIN

Declares services with permission to bind to the system 3 IoCs

Processes:

description	ioc
Required by accessibility services to bind with the system. Allows apps to access accessibility features.	android.permission.BIND_ACCESSIBILITY_SERVICE
Required by VPN services to bind with the system. Allows apps to provision VPN services.	android.permission.BIND_VPN_SERVICE
Required by input method services to bind with the system. Allows apps to provide custom input methods (keyboards).	android.permission.BIND_INPUT_METHOD

Requests dangerous framework permissions 3 IoCs

Processes:

description	ioc
Allows an application to read from external storage.	android.permission.READ_EXTERNAL_STORAGE
Allows an application to write to external storage.	android.permission.WRITE_EXTERNAL_STORAGE
Allows an application to request installing packages.	android.permission.REQUEST_INSTALL_PACKAGES

Files

KrinkoOp.apk
.apk android

com.appd.instll.load

com.appd.instll.splash

Activities

com.appd.instll.splash

android.intent.action.MAIN
android.intent.action.VIEW

Permissions

android.permission.READ_EXTERNAL_STORAGE
android.permission.WRITE_EXTERNAL_STORAGE
android.permission.REQUEST_INSTALL_PACKAGES
android.permission.REQUEST_DELETE_PACKAGES
childapp.apk
.apk android

tim.hd.they

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.MainActivity

Activities

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.MainActivity

android.intent.action.CHOOSER
android.intent.action.MAIN
android.intent.action.VIEW
android.intent.action.SEND
android.intent.action.SEND_MULTIPLE
android.intent.action.PACKAGE_REMOVED
android.intent.action.PACKAGE_REPLACED
android.intent.action.PACKAGE_ADDED
android.intent.action.PACKAGE_CHANGED
com.ui.OnAlarmReceiver.ACTION_WIDGET_RECEIVER
com.android.vending.billing.InAppBillingService.COIN
com.android.vending.billing.InAppBillingService.COIO
com.android.vending.billing.InAppBillingService.LUCM
com.android.vending.billing.InAppBillingService.PROX
ir.cafebazaar.pardakht.InAppBillingService.BIND
ru.aaaaaaax.installer
com.nokia.payment.iapenabler.InAppBillingService.BIND
com.android.vending.billing.InAppBillingService.INST

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.CameraActvity

tim.hd.they.xyz

Permissions

android.permission.SEND_SMS
android.permission.SET_WALLPAPER
android.permission.READ_SMS
android.permission.READ_CALL_LOG
android.permission.READ_CONTACTS
android.permission.GET_ACCOUNTS
android.permission.CAMERA
android.permission.RECORD_AUDIO
android.permission.ACCESS_COARSE_LOCATION
android.permission.ACCESS_FINE_LOCATION
android.permission.CALL_PHONE
android.permission.DISABLE_KEYGUARD
android.permission.FOREGROUND_SERVICE
android.permission.READ_EXTERNAL_STORAGE
android.permission.RECEIVE_BOOT_COMPLETED
android.permission.WRITE_EXTERNAL_STORAGE
android.permission.RECEIVE_BOOT_COMPLETED
oppo.permission.OPPO_COMPONENT_SAFE
oplus.permission.OPLUS_COMPONENT_SAFE
com.huawei.permission.external_app_settings.USE_COMPONENT
android.permission.INTERNET
android.permission.SYSTEM_ALERT_WINDOW
android.permission.READ_PHONE_STATE
android.permission.WAKE_LOCK
com.android.alarm.permission.SET_ALARM
android.permission.ACCESS_NETWORK_STATE
android.permission.ACCESS_WIFI_STATE
android.permission.CHANGE_WIFI_STATE
android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
android.permission.REQUEST_INSTALL_PACKAGES
android.permission.REQUEST_DELETE_PACKAGES
android.permission.USE_FULL_SCREEN_INTENT

Receivers

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.qbxcojwnihyguggyjnkpzjutzbtckytgewduayzrisvddrlgug5.CustomReceiver

tim.hd.they.RestartSensor

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.qbxcojwnihyguggyjnkpzjutzbtckytgewduayzrisvddrlgug5.BootReceiver

android.intent.action.BOOT_COMPLETED
android.intent.action.ACTION_BOOT_COMPLETED
android.intent.action.QUICKBOOT_POWERON
com.htc.intent.action.QUICKBOOT_POWERON
android.intent.action.REBOOT
android.intent.action.LOCKED_BOOT_COMPLETED
miui.intent.action.BOOT_COMPLETEDT

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.qbxcojwnihyguggyjnkpzjutzbtckytgewduayzrisvddrlgug5.PackagesReceiver

android.intent.action.PACKAGE_INSTALL
android.intent.action.PACKAGE_ADDED
android.intent.action.PACKAGE_REMOVED
android.intent.action.PACKAGE_ADDED
android.intent.action.PACKAGE_CHANGED
android.intent.action.MY_PACKAGE_REPLACED

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.qbxcojwnihyguggyjnkpzjutzbtckytgewduayzrisvddrlgug5.ScreenReceiver

android.intent.action.SCREEN_ON
android.intent.action.SCREEN_OFF
android.intent.action.ACTION_POWER_CONNECTED
android.intent.action.ACTION_POWER_DISCONNECTED
android.intent.action.USER_PRESENT

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.qbxcojwnihyguggyjnkpzjutzbtckytgewduayzrisvddrlgug5.Datareciver

android.intent.action.DATE_CHANGED

tim.hd.AdminReceiver

android.app.action.DEVICE_ADMIN_ENABLED

Services

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.sbkegjpqguuumhyagmzprkojfhkcetjnhwxbiosqgmxmczehrs3.AccessService

android.accessibilityservice.AccessibilityService

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.sbkegjpqguuumhyagmzprkojfhkcetjnhwxbiosqgmxmczehrs3.FirewallServices

android.net.VpnService

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.sbkegjpqguuumhyagmzprkojfhkcetjnhwxbiosqgmxmczehrs3.KeyboardService

android.view.InputMethod

Android Permissions

KrinkoOp.apk

Permissions

android.permission.READ_EXTERNAL_STORAGE

android.permission.WRITE_EXTERNAL_STORAGE

android.permission.REQUEST_INSTALL_PACKAGES

android.permission.REQUEST_DELETE_PACKAGES

Resubmissions

Sharing

General

Malware Config

Signatures

Files

com.appd.instll.load

com.appd.instll.splash

Activities

com.appd.instll.splash

Permissions

tim.hd.they

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.MainActivity

Activities

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.MainActivity

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.CameraActvity

Permissions

Receivers

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.qbxcojwnihyguggyjnkpzjutzbtckytgewduayzrisvddrlgug5.CustomReceiver

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.qbxcojwnihyguggyjnkpzjutzbtckytgewduayzrisvddrlgug5.BootReceiver

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.qbxcojwnihyguggyjnkpzjutzbtckytgewduayzrisvddrlgug5.PackagesReceiver

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.qbxcojwnihyguggyjnkpzjutzbtckytgewduayzrisvddrlgug5.ScreenReceiver

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.qbxcojwnihyguggyjnkpzjutzbtckytgewduayzrisvddrlgug5.Datareciver

tim.hd.AdminReceiver

Services

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.sbkegjpqguuumhyagmzprkojfhkcetjnhwxbiosqgmxmczehrs3.AccessService

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.sbkegjpqguuumhyagmzprkojfhkcetjnhwxbiosqgmxmczehrs3.FirewallServices

tim.hd.ocgkzdhgqjkngltxytjduscgccbojfwjsumtmubqizeqekyodb2.sbkegjpqguuumhyagmzprkojfhkcetjnhwxbiosqgmxmczehrs3.KeyboardService

Android Permissions

KrinkoOp.apk