Malware Analysis Report

2024-10-19 12:59

Sample ID 240825-1xq5esxeme
Target 23fcd31e7e2c81327bd7f7b809bb09a62d93cee2a71629ae573a72642e39b39a.bin
SHA256 23fcd31e7e2c81327bd7f7b809bb09a62d93cee2a71629ae573a72642e39b39a
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

Mobile Matrix V15

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

23fcd31e7e2c81327bd7f7b809bb09a62d93cee2a71629ae573a72642e39b39a

Threat Level: Known bad

The file 23fcd31e7e2c81327bd7f7b809bb09a62d93cee2a71629ae573a72642e39b39a.bin was found to be: Known bad.

Malicious Activity Summary

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

Octo

Octo payload

Removes its main activity from the application launcher

Loads dropped Dex/Jar

Makes use of the framework's Accessibility service

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)

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

Queries the mobile country code (MCC)

Requests dangerous framework permissions

Makes use of the framework's foreground persistence service

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

Declares services with permission to bind to the system

Declares broadcast receivers with permission to handle system events

Reads information about phone network operator.

Acquires the wake lock

Performs UI accessibility actions on behalf of the user

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

Uses Crypto APIs (Might try to encrypt user data)

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

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-25 22:02

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 a broad access to external storage in scoped storage. android.permission.MANAGE_EXTERNAL_STORAGE N/A N/A
Allows an application to send SMS messages. android.permission.SEND_SMS N/A N/A
Allows an application to record audio. android.permission.RECORD_AUDIO 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 SMS messages. android.permission.READ_SMS N/A N/A
Allows an app to access location in the background. android.permission.ACCESS_BACKGROUND_LOCATION N/A N/A
Allows an application to read from external storage. android.permission.READ_EXTERNAL_STORAGE 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
Allows an application to receive SMS messages. android.permission.RECEIVE_SMS N/A N/A
Allows an application to read or write the system settings. android.permission.WRITE_SETTINGS N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-25 22:02

Reported

2024-08-25 22:10

Platform

android-x86-arm-20240624-en

Max time kernel

179s

Max time network

143s

Command Line

com.carewhich8

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.carewhich8/app_DynamicOptDex/HUrWy.json N/A N/A
N/A /data/user/0/com.carewhich8/app_DynamicOptDex/HUrWy.json N/A N/A
N/A /data/user/0/com.carewhich8/cache/irheezswdjmyhlw N/A N/A
N/A /data/user/0/com.carewhich8/cache/irheezswdjmyhlw 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

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

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

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

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.carewhich8

/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.carewhich8/app_DynamicOptDex/HUrWy.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.carewhich8/app_DynamicOptDex/oat/x86/HUrWy.odex --compiler-filter=quicken --class-loader-context=&

Network

Country Destination Domain Proto
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 sabgggsabgggsabggg.top udp
US 1.1.1.1:53 www.ip-api.com udp
US 1.1.1.1:53 junggvbvb.com udp
US 208.95.112.1:80 www.ip-api.com tcp
US 1.1.1.1:53 nisiqnisiq.top udp
US 1.1.1.1:53 sabgggsabggg.com udp
US 1.1.1.1:53 abgggpoh.top udp
US 1.1.1.1:53 fujetgue.shop udp
GB 142.250.200.46:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.180.14:443 android.apis.google.com tcp
US 1.1.1.1:53 sabgggsabggg.com udp
US 1.1.1.1:53 sabgggsabggg.com udp
US 1.1.1.1:53 sabgggsabggg.top udp
US 1.1.1.1:53 xijunggao.com udp
US 1.1.1.1:53 junggvbv.com udp
US 1.1.1.1:53 siqnisiq.com udp
GB 172.217.169.42:443 semanticlocation-pa.googleapis.com tcp
GB 216.58.213.10:443 semanticlocation-pa.googleapis.com tcp

Files

/data/data/com.carewhich8/app_DynamicOptDex/HUrWy.json

MD5 73f4a5d79b45cfd0d04f9f55d58f5a16
SHA1 9b2a350687830aec2ee45d71cf897679d92be5df
SHA256 a674aa3a0efd5518fbd00ebb9ff0f693cf88a59ad812ff93d8ef4e1ffd0bbf89
SHA512 6bda17e2cf2abf853a33a61b4662f2c629f22beec939e0392be4d306807665632d169a9f79aa6e1f5a471ec248c0d56b797ae7c8ba08da6709047514f0081bea

/data/data/com.carewhich8/app_DynamicOptDex/HUrWy.json

MD5 880621e96fe110cab53c41ede60dcd0c
SHA1 18df84d031159a5b74ce2415d5f7e9cc0e1673d0
SHA256 84aed1fb7d88c51060731242656ee172ad88203ddae6e8d504dcce54ba494eaa
SHA512 49ba19d3d28611e8c2d94f4d5bd38f3e3f753351ff49e72101aa8e7cedb8c34cd6d4e96904d84057de07c9e9c97ab7ece9a3b2213dd096c8d47e2a5f47674767

/data/user/0/com.carewhich8/app_DynamicOptDex/HUrWy.json

MD5 b9d3a8f60a2ec068db2f321f88e5e59e
SHA1 ef9796b15632296cba68c02803f1354869dc94ea
SHA256 6537e76d617f2352e5c44256e022adb66ea329549a09017276c09f14482dd740
SHA512 fb23a28ebd3d8b877ad406598d5b1caba77cb882f64da2c15a7edcbe19dc54582c8a1715fba19ca82e620a35b5d7439488bbbbcbcb1433cb8d5dd55f15126cc2

/data/user/0/com.carewhich8/app_DynamicOptDex/HUrWy.json

MD5 9ba953a33b0a9a147bd4baf5a65a129a
SHA1 6fe2f13df9835c1b07d650cb1b20485a19ae442f
SHA256 65b35139ab9bb92ae442d66a35e902d5c602d6d279fd9317cfef1ce873e6ab33
SHA512 e89df7339e31973e1ca11a11861c5f2dffc0dc1228a5548caa90f0919ba0bb01dbe047c0d5055d59c51415dafca7324ad78970e566e16349cb79cfee1db7acd7

/data/data/com.carewhich8/cache/irheezswdjmyhlw

MD5 4af2b217fa08c38602628c880f174372
SHA1 5e59d77ef3473aea828199d71c09f976662b84bb
SHA256 5a639c261fb30e3db7cd6e204cf4fac3e10e4a9876ca947ed326fe106e3c4039
SHA512 cb413749bb126e2463cf5c376b32dacb12ab894a1055c64c618b09f95fbb8936794292211e19f63515be61632aab81bcefb98216b45a8f2675d8c3bd62ce7f5d

/data/data/com.carewhich8/cache/oat/irheezswdjmyhlw.cur.prof

MD5 40b687c45cf1b78dc49b04463cc30c6a
SHA1 5459402a5a02d0d1ca027bde84b9ecc29dc4b70b
SHA256 3ec4c2a24979d3998a73130bd8fb2f5266c156696f9bb8a9c735bbbcbeba404d
SHA512 570e03b59a3b201cbdfcf84ece5397371bc6d00a841b2ad396549e63e794537b2b8bfc55941c66ea3cbdd17976eb9db5ea1bd1f8a66110bb9e313791c01f48de

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-25 22:02

Reported

2024-08-25 22:10

Platform

android-x64-arm64-20240624-en

Max time kernel

179s

Max time network

132s

Command Line

com.carewhich8

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.carewhich8/app_DynamicOptDex/HUrWy.json N/A N/A
N/A /data/user/0/com.carewhich8/cache/irheezswdjmyhlw N/A N/A
N/A /data/user/0/com.carewhich8/cache/irheezswdjmyhlw 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

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

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.carewhich8

Network

Country Destination Domain Proto
GB 142.250.180.14:443 tcp
GB 142.250.180.14:443 tcp
GB 142.250.180.14:443 tcp
N/A 224.0.0.251:5353 udp
GB 216.58.213.10:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.178.14:443 android.apis.google.com tcp
GB 142.250.178.14:443 android.apis.google.com tcp
GB 216.58.213.10:443 tcp
US 1.1.1.1:53 sabgggsabgggsabggg.top udp
US 1.1.1.1:53 www.ip-api.com udp
US 208.95.112.1:80 www.ip-api.com tcp
US 1.1.1.1:53 xijunggao.com udp
US 1.1.1.1:53 fujetgue.shop udp
US 1.1.1.1:53 sabgggsabggg.com udp
US 1.1.1.1:53 junggvbv.com udp
US 1.1.1.1:53 ssl.google-analytics.com udp
US 1.1.1.1:53 abgggpoh.top udp
US 1.1.1.1:53 siqnisiq.com udp
US 1.1.1.1:53 junggvbvb.com udp
US 1.1.1.1:53 sabgggsabggg.top udp
GB 142.250.180.8:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 nisiqnisiq.top udp
US 1.1.1.1:53 sabgggsabggg.top udp
GB 142.250.200.36:443 tcp
GB 142.250.200.36:443 tcp

Files

/data/user/0/com.carewhich8/app_DynamicOptDex/HUrWy.json

MD5 73f4a5d79b45cfd0d04f9f55d58f5a16
SHA1 9b2a350687830aec2ee45d71cf897679d92be5df
SHA256 a674aa3a0efd5518fbd00ebb9ff0f693cf88a59ad812ff93d8ef4e1ffd0bbf89
SHA512 6bda17e2cf2abf853a33a61b4662f2c629f22beec939e0392be4d306807665632d169a9f79aa6e1f5a471ec248c0d56b797ae7c8ba08da6709047514f0081bea

/data/user/0/com.carewhich8/app_DynamicOptDex/HUrWy.json

MD5 880621e96fe110cab53c41ede60dcd0c
SHA1 18df84d031159a5b74ce2415d5f7e9cc0e1673d0
SHA256 84aed1fb7d88c51060731242656ee172ad88203ddae6e8d504dcce54ba494eaa
SHA512 49ba19d3d28611e8c2d94f4d5bd38f3e3f753351ff49e72101aa8e7cedb8c34cd6d4e96904d84057de07c9e9c97ab7ece9a3b2213dd096c8d47e2a5f47674767

/data/user/0/com.carewhich8/app_DynamicOptDex/HUrWy.json

MD5 b9d3a8f60a2ec068db2f321f88e5e59e
SHA1 ef9796b15632296cba68c02803f1354869dc94ea
SHA256 6537e76d617f2352e5c44256e022adb66ea329549a09017276c09f14482dd740
SHA512 fb23a28ebd3d8b877ad406598d5b1caba77cb882f64da2c15a7edcbe19dc54582c8a1715fba19ca82e620a35b5d7439488bbbbcbcb1433cb8d5dd55f15126cc2

/data/user/0/com.carewhich8/cache/irheezswdjmyhlw

MD5 4af2b217fa08c38602628c880f174372
SHA1 5e59d77ef3473aea828199d71c09f976662b84bb
SHA256 5a639c261fb30e3db7cd6e204cf4fac3e10e4a9876ca947ed326fe106e3c4039
SHA512 cb413749bb126e2463cf5c376b32dacb12ab894a1055c64c618b09f95fbb8936794292211e19f63515be61632aab81bcefb98216b45a8f2675d8c3bd62ce7f5d

/data/user/0/com.carewhich8/cache/oat/irheezswdjmyhlw.cur.prof

MD5 a0945ec4f7d1d790c0f84887bd3a8894
SHA1 37cfa49a4b249835486a32e490308131940da934
SHA256 558c871ec40d0e8ce17c8905c52e7d6b6915cbbd5c340ba0471b225b0c805d03
SHA512 c60386553dd8e7c38c1e8f38f7a6242a79735f7f07bedff6be471efba2e32a396effb17a44b2971be82083e79eb3a78cf8b8e55130a8d9a8b23430732fcbdffb