octo | fa5b6a9682a8d31a92c94d87f1fadd0827ab0b1f07656f7473a928fec467905c

Analysis

max time kernel
149s
max time network
151s
platform
android-10_x64
resource
android-x64-20240910-en
resource tags

arch:x64arch:x86image:android-x64-20240910-enlocale:en-usos:android-10-x64system
submitted
20-10-2024 22:01

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General

Target

fa5b6a9682a8d31a92c94d87f1fadd0827ab0b1f07656f7473a928fec467905c.apk
Size

561KB
MD5

df4db090fa6d8cae696d1ffbf4239715
SHA1

d23e62031e2f04295ba3adf477072e784bb3a026
SHA256

fa5b6a9682a8d31a92c94d87f1fadd0827ab0b1f07656f7473a928fec467905c
SHA512

bd7941fa88d84c0d1070ced3d5511ae0d92f26a4248ca510ce680a17e78bfccbe9045d7b8ef6838465a2059dcb4f344ee8618adb184670f8cd241fba4ba21e42
SSDEEP

12288:W0KJ+WzC1pfnSuwHNJt3FwuHc+ZlOTAeR6SUhitKVkFFy+YNHaL+ZS3dXFi1rnm/:W0KJ+WzC1pvN+Nz2UZDOTKSUhQKV6Pa6

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

https://2pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://3pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://4pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://5pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://6pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://22pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://32pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://52pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

rc4.plain

Extracted

Family

octo

https://2pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://3pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://4pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://5pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://6pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://22pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://32pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://52pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

AES_key

Signatures

Octo
Octo is a banking malware with remote access capabilities first seen in April 2022.
banker trojan infostealer rat octo

Octo payload 1 IoCs

resource	yara_rule
behavioral2/files/fstream-1.dat	family_octo

Loads dropped Dex/Jar 1 TTPs 2 IoCs

Runs executable file dropped to the device during analysis.

evasion

Download New Code at Runtime

T1407

ioc	pid	Process
/data/user/0/com.shortupu/cache/wuudvnbcrjvx	5077	com.shortupu
/data/user/0/com.shortupu/cache/wuudvnbcrjvx	5077	com.shortupu

Makes use of the framework's Accessibility service 4 TTPs 2 IoCs

Retrieves information displayed on the phone screen using AccessibilityService.

collection evasion credential_access

Input Injection

T1516

Screen Capture

T1513

Keylogging

T1417.001

GUI Input Capture

T1417.002

description	ioc	Process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.shortupu
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.shortupu

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
banker discovery

Security Software Discovery
T1418.001
Queries the phone number (MSISDN for GSM devices) 1 TTPs
discovery

System Network Configuration Discovery
T1422

Acquires the wake lock 1 IoCs

description	ioc	Process
Framework service call	android.os.IPowerManager.acquireWakeLock	com.shortupu

Makes use of the framework's foreground persistence service 1 TTPs 1 IoCs

Application may abuse the framework's foreground service to continue running in the foreground.

evasion persistence

Foreground Persistence

T1541

description	ioc	Process
Framework service call	android.app.IActivityManager.setServiceForeground	com.shortupu

Performs UI accessibility actions on behalf of the user 1 TTPs 4 IoCs

Application may abuse the accessibility service to prevent their removal.

evasion

Prevent Application Removal

T1629.001

ioc	Process
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.shortupu
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.shortupu
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.shortupu
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.shortupu

Queries the mobile country code (MCC) 1 TTPs 1 IoCs

discovery

System Network Configuration Discovery

T1422

description	ioc	Process
Framework service call	com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone	com.shortupu

Reads information about phone network operator. 1 TTPs
discovery

System Network Configuration Discovery
T1422

Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs

persistence

Broadcast Receivers

T1624.001

description	ioc	Process
Framework service call	android.app.IActivityManager.registerReceiver	com.shortupu

Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs

impact

Data Encrypted for Impact

T1471

description	ioc	Process
Framework API call	javax.crypto.Cipher.doFinal	com.shortupu

com.shortupu
1⤵
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- Acquires the wake lock
- Makes use of the framework's foreground persistence service
- Performs UI accessibility actions on behalf of the user
- Queries the mobile country code (MCC)
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Uses Crypto APIs (Might try to encrypt user data)
PID:5077

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Persistence

Event Triggered Execution

T1624

Broadcast Receivers

T1624.001

Foreground Persistence

T1541

Privilege Escalation

Defense Evasion

Download New Code at Runtime

T1407

Foreground Persistence

T1541

Impair Defenses

T1629

Prevent Application Removal

T1629.001

Input Injection

T1516

Credential Access

Input Capture

T1417

GUI Input Capture

T1417.002

Keylogging

T1417.001

Discovery

Software Discovery

T1418

Security Software Discovery

T1418.001

System Network Configuration Discovery

T1422

Lateral Movement

Collection

Input Capture

T1417

GUI Input Capture

T1417.002

Keylogging

T1417.001

Screen Capture

T1513

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

T1471

Input Injection

T1516

Replay Monitor

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Downloads

/data/data/com.shortupu/cache/oat/wuudvnbcrjvx.cur.prof

Filesize
455B

MD5
22b34ac18b9d0d8d3631154b4df1add5

SHA1
8f87a58f19d1223563fd50d68078034ad0caab60

SHA256
14aa8118eeeca3553ef8a6821fe196a22343725f8ea0d47f26dc4e6a9d9bdebc

SHA512
efd651b96d15ebda850ec8cac1dfd3ff6232f0f5eed3400bc05a37c67d43c5281e457503c74f77e7663b30cad41f3e51049e520140a5fcf8c7957e09a2c23a82

Download Submit
/data/data/com.shortupu/cache/wuudvnbcrjvx

Filesize
448KB

MD5
685786331242ed8468a580fc9d6d0964

SHA1
634adda78306a45eaa28400d420fb05217b472f7

SHA256
76a95f95b7b55d95438a27babcaf4936077a56b511b015673220de8d71875a76

SHA512
11773c15d9e8424547ffdc2e40ac508a300c615b8016612c860cd6fdb59289513d1ac30eeff7c435545e3018eba7b300f140cc4de04391e740edc804fef4772d

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads