Malware Analysis Report

2024-07-28 11:39

Sample ID 240623-anb12a1hjd
Target e2dcffa9b4452ef0d3baa1877b6a668bddac2170bdbbff3496f16b20362618c8.bin
SHA256 e2dcffa9b4452ef0d3baa1877b6a668bddac2170bdbbff3496f16b20362618c8
Tags
octo banker collection credential_access discovery evasion impact infostealer persistence rat stealth trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

e2dcffa9b4452ef0d3baa1877b6a668bddac2170bdbbff3496f16b20362618c8

Threat Level: Known bad

The file e2dcffa9b4452ef0d3baa1877b6a668bddac2170bdbbff3496f16b20362618c8.bin was found to be: Known bad.

Malicious Activity Summary

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

Octo payload

Octo

Removes its main activity from the application launcher

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

Queries the phone number (MSISDN for GSM devices)

Loads dropped Dex/Jar

Makes use of the framework's Accessibility service

Requests modifying system settings.

Performs UI accessibility actions on behalf of the user

Makes use of the framework's foreground persistence service

Queries the mobile country code (MCC)

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

Acquires the wake lock

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

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

Declares broadcast receivers with permission to handle system events

Declares services with permission to bind to the system

Requests dangerous framework permissions

Reads information about phone network operator.

Uses Crypto APIs (Might try to encrypt user data)

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

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-23 00:21

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 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: behavioral1

Detonation Overview

Submitted

2024-06-23 00:21

Reported

2024-06-23 00:24

Platform

android-x86-arm-20240611.1-en

Max time kernel

178s

Max time network

183s

Command Line

com.fullbackcx

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.fullbackcx/cache/hetgmhfksa N/A N/A
N/A /data/user/0/com.fullbackcx/cache/hetgmhfksa 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.fullbackcx

Network

Country Destination Domain Proto
GB 142.250.180.14:443 tcp
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 mamudoilekeyfyap.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 mamudoiledostadogru.com udp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
GB 142.250.187.206:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.206:443 android.apis.google.com tcp
GB 142.250.180.10:443 semanticlocation-pa.googleapis.com tcp
US 1.1.1.1:53 dertlikaygisiz04.com udp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
GB 142.250.187.234:443 semanticlocation-pa.googleapis.com tcp
GB 172.217.16.234:443 semanticlocation-pa.googleapis.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.fullbackcx/cache/hetgmhfksa

MD5 12db434b4e2ba94716a6242217a53909
SHA1 b92fce5391b7d6e1b82ad674b3d3f2aa0be98ce8
SHA256 8a05f6119584b09ca697ef2cf35274889c47a032561e1d07599f3e8416f2f8c6
SHA512 ea356079366ca2428dd56e0484430c4a420d11409e2798c52c11e8670b3733a86fb0a51b64eb717802a84cd4d7ed5262e8a0e120cef403c149300e7cbd99727b

/data/data/com.fullbackcx/cache/oat/hetgmhfksa.cur.prof

MD5 ed5202e4d2f8500ff11714d3a16f9bc2
SHA1 f1a3cf4005c667b25e9eeb4f51032ba4ee1f47ab
SHA256 c041e525416da739965cf34189cdd0dc0c43a4f29eb498275d784e78b86059c7
SHA512 e3b411dd61621146e56c98bef435e18f175bd733f3269ddf87ad2bf2a69e98ab1ce1e6fe28b2850d8efc91a09c032767bf262891b527e3520a9c34796a5d1b8c

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-23 00:21

Reported

2024-06-23 00:24

Platform

android-33-x64-arm64-20240611.1-en

Max time kernel

178s

Max time network

187s

Command Line

com.fullbackcx

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.fullbackcx/cache/hetgmhfksa 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.findAccessibilityNodeInfosByViewId N/A N/A
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId 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

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.fullbackcx

Network

Country Destination Domain Proto
GB 172.217.169.68:443 udp
GB 172.217.169.68:443 tcp
BE 142.250.110.188:5228 tcp
GB 172.217.16.228:443 tcp
N/A 224.0.0.251:5353 udp
GB 216.58.212.234:443 udp
GB 216.58.212.234:443 tcp
GB 142.250.187.206:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.238:443 android.apis.google.com tcp
US 1.1.1.1:53 mamudoilekeyfyap.com udp
US 1.1.1.1:53 mamudoiledostadogru.com udp
US 1.1.1.1:53 sigaracokhojdur1.com udp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
US 172.64.41.3:443 tcp
US 172.64.41.3:443 tcp
GB 172.217.16.227:443 tcp
US 172.64.41.3:443 udp
GB 172.217.16.227:443 udp
US 1.1.1.1:53 remoteprovisioning.googleapis.com udp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
GB 172.217.169.68:443 udp
GB 142.250.179.228:443 udp
GB 142.250.179.228:443 tcp
GB 142.250.179.228:443 tcp
GB 142.250.179.228:443 tcp
GB 216.58.212.227:443 tcp
US 1.1.1.1:53 kaygisizamamutlu04.com udp
US 1.1.1.1:53 dertlikaygisiz04.com 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
GB 216.58.212.202:443 remoteprovisioning.googleapis.com 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
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 142.250.200.36:443 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.fullbackcx/cache/hetgmhfksa

MD5 12db434b4e2ba94716a6242217a53909
SHA1 b92fce5391b7d6e1b82ad674b3d3f2aa0be98ce8
SHA256 8a05f6119584b09ca697ef2cf35274889c47a032561e1d07599f3e8416f2f8c6
SHA512 ea356079366ca2428dd56e0484430c4a420d11409e2798c52c11e8670b3733a86fb0a51b64eb717802a84cd4d7ed5262e8a0e120cef403c149300e7cbd99727b

/data/data/com.fullbackcx/cache/oat/hetgmhfksa.cur.prof

MD5 7242e336ec99d0d2b1c6a72a8c949a7e
SHA1 2cf8b3ce7df804a108d6cbbbe908950308348ece
SHA256 535dc12fc35c2908b688aba6dfe4144460ad66e4c4c4fc29789f75e6737e3891
SHA512 dbd01718104a49e5191d72e3cb6897147852b6ee6d40ab9164b5598537d862ee66a686334fbe72b501edf13e6ef4e4a71f8ab55c6e4038342119af0dba78e5c5