Malware Analysis Report

2024-12-01 03:08

Sample ID 241111-lrc82swqhs
Target 64d3afd838f529252f3975298bb37a1cb871486d5c690ede912fb51800523383
SHA256 64d3afd838f529252f3975298bb37a1cb871486d5c690ede912fb51800523383
Tags
octo banker collection credential_access discovery evasion impact infostealer persistence rat 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 Overview

score
10/10

SHA256

64d3afd838f529252f3975298bb37a1cb871486d5c690ede912fb51800523383

Threat Level: Known bad

The file 64d3afd838f529252f3975298bb37a1cb871486d5c690ede912fb51800523383 was found to be: Known bad.

Malicious Activity Summary

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Octo

Octo family

Octo payload

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)

Loads dropped Dex/Jar

Checks Android system properties for emulator presence.

Makes use of the framework's Accessibility service

Declares services with permission to bind to the system

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

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

Makes use of the framework's foreground persistence service

Attempts to obfuscate APK file format

Declares broadcast receivers with permission to handle system events

Queries the mobile country code (MCC)

Requests dangerous framework permissions

Acquires the wake lock

Uses Crypto APIs (Might try to encrypt user data)

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

Checks CPU information

Checks memory information

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-11 09:45

Signatures

Attempts to obfuscate APK file format

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 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 receive SMS messages. android.permission.RECEIVE_SMS N/A N/A
Allows an application to monitor incoming MMS messages. android.permission.RECEIVE_MMS N/A N/A
Allows read access to the device's phone number(s). android.permission.READ_PHONE_NUMBERS 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 an app to create windows using the type LayoutParams.TYPE_APPLICATION_OVERLAY, shown on top of all other apps. android.permission.SYSTEM_ALERT_WINDOW N/A N/A
Allows an app to post notifications. android.permission.POST_NOTIFICATIONS 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

2024-11-11 09:45

Reported

2024-11-11 09:51

Platform

android-x86-arm-20240624-en

Max time kernel

27s

Max time network

41s

Command Line

com.gcom31providers

Signatures

Octo

banker trojan infostealer rat octo

Octo family

octo

Octo payload

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

Checks Android system properties for emulator presence.

evasion
Description Indicator Process Target
Accessed system property key: ro.product.model N/A N/A

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.gcom31providers/app_dex/classes.dex N/A N/A
N/A /data/user/0/com.gcom31providers/app_dex/classes.dex N/A N/A
N/A /data/user/0/com.gcom31providers/app_dex/classes.dex N/A N/A
N/A Anonymous-DexFile@0xc8d78000-0xc8dfb734 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

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 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

Checks CPU information

Description Indicator Process Target
File opened for read /proc/cpuinfo N/A N/A

Checks memory information

Description Indicator Process Target
File opened for read /proc/meminfo N/A N/A

Processes

com.gcom31providers

/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.gcom31providers/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.gcom31providers/app_dex/oat/x86/classes.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 4d79ea9f9802a97ed2bb0c9a1a795680.uk udp
US 1.1.1.1:53 4d79ea9f9802a97ed2bb0c9a1a795680.uk udp
US 1.1.1.1:53 e06cc429d007b81e3a2390f0ce476c37.ca udp
US 1.1.1.1:53 e06cc429d007b81e3a2390f0ce476c37.ca udp
US 1.1.1.1:53 401b1573a6673454eddf07c93f2a9ffc.au udp
US 1.1.1.1:53 401b1573a6673454eddf07c93f2a9ffc.au udp
US 1.1.1.1:53 e089a60c2626934c1b375bbdbb53bc5c.ua udp
US 1.1.1.1:53 e089a60c2626934c1b375bbdbb53bc5c.ua udp
US 1.1.1.1:53 d22c1b08a0c6b0c677830feddcdd9328.ir udp
US 1.1.1.1:53 d22c1b08a0c6b0c677830feddcdd9328.ir udp
US 1.1.1.1:53 cac8b3110d66b8ff699fea11e8aeac45.com udp
US 1.1.1.1:53 cac8b3110d66b8ff699fea11e8aeac45.com udp
US 1.1.1.1:53 775fada8aca49dd469a29d194d896947.de udp
US 1.1.1.1:53 775fada8aca49dd469a29d194d896947.de udp
US 1.1.1.1:53 c9bcfab11c3afb49b6e28ddc1276a3ba.net udp
US 1.1.1.1:53 c9bcfab11c3afb49b6e28ddc1276a3ba.net udp
US 1.1.1.1:53 654b037581035d6aeb98475b46ecec1f.org udp
US 1.1.1.1:53 654b037581035d6aeb98475b46ecec1f.org udp
US 1.1.1.1:53 d308f6cb62d45c0a3c30fc2fc37dd84a.info udp
US 1.1.1.1:53 d308f6cb62d45c0a3c30fc2fc37dd84a.info udp
US 1.1.1.1:53 240d0e33b4e9fd65a2f2f0b94a39d846.in udp
US 1.1.1.1:53 240d0e33b4e9fd65a2f2f0b94a39d846.in udp
US 1.1.1.1:53 074edacc59ac92c1d11ee8f240991ba2.us udp
US 1.1.1.1:53 074edacc59ac92c1d11ee8f240991ba2.us udp
GB 142.250.187.206:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
US 1.1.1.1:53 android.apis.google.com udp
US 1.1.1.1:53 e06cc429d007b81e3a2390f0ce476c37.ca udp
US 1.1.1.1:53 e06cc429d007b81e3a2390f0ce476c37.ca udp
US 1.1.1.1:53 654b037581035d6aeb98475b46ecec1f.org udp
US 1.1.1.1:53 654b037581035d6aeb98475b46ecec1f.org udp
US 1.1.1.1:53 c9bcfab11c3afb49b6e28ddc1276a3ba.net udp
US 1.1.1.1:53 c9bcfab11c3afb49b6e28ddc1276a3ba.net udp
US 1.1.1.1:53 401b1573a6673454eddf07c93f2a9ffc.au udp
US 1.1.1.1:53 401b1573a6673454eddf07c93f2a9ffc.au udp
US 1.1.1.1:53 4d79ea9f9802a97ed2bb0c9a1a795680.uk udp
US 1.1.1.1:53 4d79ea9f9802a97ed2bb0c9a1a795680.uk udp
US 1.1.1.1:53 d308f6cb62d45c0a3c30fc2fc37dd84a.info udp
US 1.1.1.1:53 d308f6cb62d45c0a3c30fc2fc37dd84a.info udp
US 1.1.1.1:53 e089a60c2626934c1b375bbdbb53bc5c.ua udp
US 1.1.1.1:53 e089a60c2626934c1b375bbdbb53bc5c.ua udp
US 1.1.1.1:53 775fada8aca49dd469a29d194d896947.de udp
US 1.1.1.1:53 775fada8aca49dd469a29d194d896947.de udp
US 1.1.1.1:53 cac8b3110d66b8ff699fea11e8aeac45.com udp
US 1.1.1.1:53 cac8b3110d66b8ff699fea11e8aeac45.com udp
US 1.1.1.1:53 240d0e33b4e9fd65a2f2f0b94a39d846.in udp
US 1.1.1.1:53 240d0e33b4e9fd65a2f2f0b94a39d846.in udp
US 1.1.1.1:53 d22c1b08a0c6b0c677830feddcdd9328.ir udp
US 1.1.1.1:53 d22c1b08a0c6b0c677830feddcdd9328.ir udp
US 1.1.1.1:53 074edacc59ac92c1d11ee8f240991ba2.us udp
US 1.1.1.1:53 074edacc59ac92c1d11ee8f240991ba2.us udp
GB 216.58.204.74:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
US 1.1.1.1:53 android.apis.google.com udp

Files

/data/data/com.gcom31providers/cache/classes.zip

MD5 52ba42c1af65da09b9986bf7a02ff3dc
SHA1 aea733d2594baa7d4a68d337c1bcbe6afc64bb64
SHA256 7486de0d5ac7b2a0c2290b8ccf67f88b8abcf25cc7862609f62ecb277ea702ff
SHA512 bd46bf67601d34f4fdc261798e448e1b37f54e9674f8e0256db45a7b4db3ba717a4a54805b1eedae4d7f2f5fca91b366ea2cef3c9f902a55d6f5e2b824496f29

/data/data/com.gcom31providers/cache/classes.dex

MD5 ba8304c9e14566d7dbe8088089fd59a4
SHA1 c05b34563acb93ad9cd523f6271c0d2fb9b74868
SHA256 545d005f9cda6b2672d6dcdf1a6d83427c8863ccba49ae1a3f58461b29a12a93
SHA512 65c72a8e48ca3036aeb498408be213de2ae52776bcdbc73daae91b5e15fe2ebbc0014705f483dadf7408c1f5a7abd8dcf78c0df476e0f8ddbf61fcfc1d8dd146

/data/data/com.gcom31providers/app_dex/classes.dex

MD5 eb65ac5c2dc00b48a211c8e70e2c564c
SHA1 fe093ce4b18285b2a43b1b91a5c5e47dc95660aa
SHA256 132b1f07b20fd19b04666ca13c846951632dbcff6d31ba4f1749d5ce4050bad8
SHA512 4bd2b081419513e58d2381748ff79d0c042823f8ba4cb7e42cda36bad7c8d9182b79a71f14f516c7a407683cd700ad28de8754f09371e528cd274163c42cb243

/data/user/0/com.gcom31providers/app_dex/classes.dex

MD5 d5d3ac775030b098e76c19aed8e5695b
SHA1 d1cc9a8721a02943ddc6b5e3c875cc290c5dcdc6
SHA256 b137ed21f12663590373333a4a8ea52925faaf113b7790cf1c26fa79a0323e24
SHA512 f707b4d9324f356647beb3033098d7d97c2eaa96620830083e4d4092e650c1b4aa1f9cf84d03700dcf6f090cb5f0056099a3db89f8af1ba62102e011beca2f0b

/data/data/com.gcom31providers/files/.n

MD5 4e73947cabb5db3f92ca85004981b754
SHA1 6d9667fdb0280ed2dcb782b4683e422a51bdc601
SHA256 6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c
SHA512 be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

Anonymous-DexFile@0xc8d78000-0xc8dfb734

MD5 76e59d3e3c9bc98bcced1da7340cfc37
SHA1 57af0afc8a0fa4ddc554f754041933679c03f35b
SHA256 321608254d21b14b86f246ee4e9b8617146654d712eea28c796150fb68acee61
SHA512 34da3b0ca7463a19fe2f21e47dd6d97fb5148ad98206d744a38ab04b39531eb3384ba742c0db46b019bfa3690a911e0f23343937905e592d1d967aa20c7c41be

/data/data/com.gcom31providers/.global.com.gcom31providers

MD5 046a414913add6f5bb60072c7db819b6
SHA1 451ee4f6809260aec622d772fd329c7d0297a842
SHA256 b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a
SHA512 4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c