Malware Analysis Report

2024-07-28 11:40

Sample ID 240624-wm4wbaycrp
Target 2d48ed68a6cec26f33c2677ff116710d329f19fc108f2ea89306be9c534aa686.bin
SHA256 2d48ed68a6cec26f33c2677ff116710d329f19fc108f2ea89306be9c534aa686
Tags
octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan stealth
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

2d48ed68a6cec26f33c2677ff116710d329f19fc108f2ea89306be9c534aa686

Threat Level: Known bad

The file 2d48ed68a6cec26f33c2677ff116710d329f19fc108f2ea89306be9c534aa686.bin was found to be: Known bad.

Malicious Activity Summary

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

Octo payload

Octo

Removes its main activity from the application launcher

Queries the phone number (MSISDN for GSM devices)

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)

Makes use of the framework's Accessibility service

Loads dropped Dex/Jar

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

Declares services with permission to bind to the system

Queries the mobile country code (MCC)

Requests accessing notifications (often used to intercept notifications before users become aware).

Declares broadcast receivers with permission to handle system events

Requests dangerous framework permissions

Queries the unique device ID (IMEI, MEID, IMSI)

Makes use of the framework's foreground persistence service

Reads information about phone network operator.

Performs UI accessibility actions on behalf of the user

Requests modifying system settings.

Acquires the wake lock

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

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-24 18:03

Signatures

Declares broadcast receivers with permission to handle system events

Description Indicator Process Target
Required by device admin receivers to bind with the system. Allows apps to manage device administration features. android.permission.BIND_DEVICE_ADMIN N/A N/A

Declares services with permission to bind to the system

Description Indicator Process Target
Required by accessibility services to bind with the system. Allows apps to access accessibility features. android.permission.BIND_ACCESSIBILITY_SERVICE N/A N/A
Required by notification listener services to bind with the system. Allows apps to listen to and interact with notifications on the device. android.permission.BIND_NOTIFICATION_LISTENER_SERVICE N/A N/A

Requests dangerous framework permissions

Description Indicator Process Target
Allows an application to read from external storage. android.permission.READ_EXTERNAL_STORAGE N/A N/A
Allows an application to write to external storage. android.permission.WRITE_EXTERNAL_STORAGE N/A N/A
Allows an application to receive SMS messages. android.permission.RECEIVE_SMS N/A N/A
Allows an application to read SMS messages. android.permission.READ_SMS N/A N/A
Allows an application to send SMS messages. android.permission.SEND_SMS N/A N/A
Allows an application to initiate a phone call without going through the Dialer user interface for the user to confirm the call. android.permission.CALL_PHONE N/A N/A
Allows an application to read or write the system settings. android.permission.WRITE_SETTINGS N/A N/A
Allows read only access to phone state, including the current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device. android.permission.READ_PHONE_STATE N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-24 18:03

Reported

2024-06-24 18:09

Platform

android-33-x64-arm64-20240624-en

Max time kernel

179s

Max time network

186s

Command Line

com.areair44

Signatures

Octo

banker trojan infostealer rat octo

Octo payload

Description Indicator Process Target
N/A N/A N/A N/A

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.areair44/cache/kdfbmv N/A N/A

Makes use of the framework's Accessibility service

collection evasion credential_access
Description Indicator Process Target
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId N/A N/A
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId N/A N/A

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)

banker discovery

Queries the phone number (MSISDN for GSM devices)

discovery

Acquires the wake lock

Description Indicator Process Target
Framework service call android.os.IPowerManager.acquireWakeLock N/A N/A

Makes use of the framework's foreground persistence service

evasion persistence
Description Indicator Process Target
Framework service call android.app.IActivityManager.setServiceForeground N/A N/A

Performs UI accessibility actions on behalf of the user

evasion
Description Indicator Process Target
N/A android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction N/A N/A
N/A android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction N/A N/A
N/A android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction N/A N/A
N/A android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction N/A N/A

Queries the mobile country code (MCC)

discovery
Description Indicator Process Target
Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone N/A N/A

Reads information about phone network operator.

discovery

Requests accessing notifications (often used to intercept notifications before users become aware).

collection credential_access
Description Indicator Process Target
Intent action android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS N/A N/A

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

evasion
Description Indicator Process Target
Intent action android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS N/A N/A

Requests modifying system settings.

evasion
Description Indicator Process Target
Intent action android.settings.action.MANAGE_WRITE_SETTINGS N/A N/A

Uses Crypto APIs (Might try to encrypt user data)

impact
Description Indicator Process Target
Framework API call javax.crypto.Cipher.doFinal N/A N/A

Processes

com.areair44

Network

Country Destination Domain Proto
GB 216.58.201.100:443 udp
GB 216.58.201.100:443 udp
GB 142.250.200.42:443 udp
GB 142.250.200.42:443 tcp
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 mamudoiledostadogru.com udp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
US 1.1.1.1:53 sigaracokhojdur1.com udp
US 1.1.1.1:53 kaygisizamamutlu04.com udp
US 1.1.1.1:53 dertlikaygisiz04.com udp
US 1.1.1.1:53 mamudoilekeyfyap.com udp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
GB 216.58.201.100:443 udp
US 172.64.41.3:443 udp
US 172.64.41.3:443 tcp
US 172.64.41.3:443 tcp
GB 216.58.204.67:443 tcp
GB 216.58.204.67:443 udp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
US 1.1.1.1:53 www.google.com udp
GB 142.250.187.196:443 www.google.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
GB 142.250.200.36:443 tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
GB 142.250.187.196:443 www.google.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp

Files

/data/data/com.areair44/cache/kdfbmv

MD5 4f22321a20c2c6a40e48f6ca746925d9
SHA1 e0059c64c2dd7a73d1588c2ece01a50e6fe25352
SHA256 85eef316556a51cb2367b4b597a430f0c8c9ff15636ba7277743cbd0e02a0679
SHA512 6a9e907d383f93fb30ee0455967db8cb01d0665d15c3f93f77a8deab2f8afc18dd7ec29964b60d83b13c3548698d0c337701dd3f2fe7a657342748f870e066d7

/data/data/com.areair44/cache/oat/kdfbmv.cur.prof

MD5 1f4d1689f7cecfe8ef6ca62fdd63c289
SHA1 d6ea3e56faddafd35854964d8e93efd450f7180e
SHA256 98a424f655b172b71f646438401fefdb0cff33848e077c6da6b6e692a54d65f8
SHA512 01002eace915d5b78781e7860237689054de0bfcb6bbd764ae64a46598e2b71c9c391dc0f88cf9418736044132c7f310fe3f752bb9a74aa51f81d8349ee6bc51

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-24 18:03

Reported

2024-06-24 18:09

Platform

android-x86-arm-20240624-en

Max time kernel

178s

Max time network

183s

Command Line

com.areair44

Signatures

Octo

banker trojan infostealer rat octo

Octo payload

Description Indicator Process Target
N/A N/A N/A N/A

Removes its main activity from the application launcher

stealth trojan evasion
Description Indicator Process Target
N/A N/A N/A N/A

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.areair44/cache/kdfbmv N/A N/A
N/A /data/user/0/com.areair44/cache/kdfbmv N/A N/A

Makes use of the framework's Accessibility service

collection evasion credential_access
Description Indicator Process Target
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId N/A N/A
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId N/A N/A

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)

banker discovery

Queries the phone number (MSISDN for GSM devices)

discovery

Acquires the wake lock

Description Indicator Process Target
Framework service call android.os.IPowerManager.acquireWakeLock N/A N/A

Makes use of the framework's foreground persistence service

evasion persistence
Description Indicator Process Target
Framework service call android.app.IActivityManager.setServiceForeground N/A N/A

Performs UI accessibility actions on behalf of the user

evasion
Description Indicator Process Target
N/A android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction N/A N/A
N/A android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction N/A N/A
N/A android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction N/A N/A
N/A android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction N/A N/A

Queries the mobile country code (MCC)

discovery
Description Indicator Process Target
Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone N/A N/A

Queries the unique device ID (IMEI, MEID, IMSI)

discovery

Reads information about phone network operator.

discovery

Requests accessing notifications (often used to intercept notifications before users become aware).

collection credential_access
Description Indicator Process Target
Intent action android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS N/A N/A

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

evasion
Description Indicator Process Target
Intent action android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS N/A N/A

Requests modifying system settings.

evasion
Description Indicator Process Target
Intent action android.settings.action.MANAGE_WRITE_SETTINGS N/A N/A

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

persistence
Description Indicator Process Target
Framework service call android.app.IActivityManager.registerReceiver N/A N/A

Uses Crypto APIs (Might try to encrypt user data)

impact
Description Indicator Process Target
Framework API call javax.crypto.Cipher.doFinal N/A N/A

Processes

com.areair44

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.187.202:443 tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 dertlikaygisiz04.com udp
US 1.1.1.1:53 sigaracokhojdur1.com udp
US 1.1.1.1:53 kaygisizamamutlu04.com udp
US 1.1.1.1:53 mamudoilekeyfyap.com udp
US 1.1.1.1:53 mamudoiledostadogru.com udp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
GB 142.250.200.46:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 172.217.16.238:443 android.apis.google.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp

Files

/data/data/com.areair44/cache/kdfbmv

MD5 4f22321a20c2c6a40e48f6ca746925d9
SHA1 e0059c64c2dd7a73d1588c2ece01a50e6fe25352
SHA256 85eef316556a51cb2367b4b597a430f0c8c9ff15636ba7277743cbd0e02a0679
SHA512 6a9e907d383f93fb30ee0455967db8cb01d0665d15c3f93f77a8deab2f8afc18dd7ec29964b60d83b13c3548698d0c337701dd3f2fe7a657342748f870e066d7

/data/data/com.areair44/cache/oat/kdfbmv.cur.prof

MD5 f23288f3f40689e86754e57704b3511c
SHA1 9347ded24e9c51436b6194345e28ffd5bcdb247e
SHA256 3cdaff6eb4962200b3926af6a4b9ce9c17a5f12ed44c497851fde27b40375adb
SHA512 10670d99cc516a0c5be1c6af96f203fefb756cad7108f172d0a7ec13b652b075fbbad4e4f9b2d1c3c2a46cd82a2f5a2c2140d69c06005075798a662a5d95ca5b