octo | 03afe30160628d89501524010ad8b27d634586fd4efe341cb69df4dd59a2404a

Analysis

max time kernel
149s
max time network
151s
platform
android-9_x86
resource
android-x86-arm-20240910-en
resource tags

arch:armarch:x86image:android-x86-arm-20240910-enlocale:en-usos:android-9-x86system
submitted
01/10/2024, 22:07

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General

Target

03afe30160628d89501524010ad8b27d634586fd4efe341cb69df4dd59a2404a.apk
Size

557KB
MD5

88a446cc2120c31a733235ca50583359
SHA1

f6b37c0a6b7f3b821998ba7979a4e7de4010b962
SHA256

03afe30160628d89501524010ad8b27d634586fd4efe341cb69df4dd59a2404a
SHA512

c97e26f78a888c815dbc15f96707af25786c38ea7b3587333f8049f94ae6cdc43e6cf328103eca6e83a844f0d39cffef9ea63101f724284063392b13bb3c3f9c
SSDEEP

12288:Di8xVA98D7QF9Q+ONLn0CT/I/DjRz0De89dajoO4Fy+BJx:pVAo7QF9Q+uLFe5YDe89d8R4FyY

Score

10^/10

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

Malware Config

Extracted

Family

octo

https://179.43.163.113/YTFlMzViNjNiNWM3/

https://slmmistosi.com/YTFlMzViNjNiNWM3/

https://slmmistosi2.com/YTFlMzViNjNiNWM3/

rc4.plain

Extracted

Family

octo

https://179.43.163.113/YTFlMzViNjNiNWM3/

https://slmmistosi.com/YTFlMzViNjNiNWM3/

https://slmmistosi2.com/YTFlMzViNjNiNWM3/

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
behavioral1/files/fstream-1.dat	family_octo

Removes its main activity from the application launcher 1 TTPs 1 IoCs

stealth trojan evasion

Suppress Application Icon

T1628.001

pid	Process
4215	com.boyhowfaac

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.boyhowfaac/cache/cxeyzfr	4215	com.boyhowfaac
/data/user/0/com.boyhowfaac/cache/cxeyzfr	4215	com.boyhowfaac

Makes use of the framework's Accessibility service 4 TTPs 1 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.boyhowfaac

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.boyhowfaac

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.boyhowfaac

Performs UI accessibility actions on behalf of the user 1 TTPs 2 IoCs

Application may abuse the accessibility service to prevent their removal.

evasion

Prevent Application Removal

T1629.001

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

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.boyhowfaac

Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
discovery

System Network Configuration Discovery
T1422
Reads information about phone network operator. 1 TTPs
discovery

System Network Configuration Discovery
T1422

Requests accessing notifications (often used to intercept notifications before users become aware). 1 TTPs 1 IoCs

collection credential_access

Access Notifications

T1517

description	ioc	Process
Intent action	android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS	com.boyhowfaac

Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs

evasion

User Evasion

T1628.002

description	ioc	Process
Intent action	android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	com.boyhowfaac

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.boyhowfaac

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.boyhowfaac

com.boyhowfaac
1⤵
- Removes its main activity from the application launcher
- 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)
- Requests accessing notifications (often used to intercept notifications before users become aware).
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Uses Crypto APIs (Might try to encrypt user data)
PID:4215

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

Hide Artifacts

T1628

Suppress Application Icon

T1628.001

User Evasion

T1628.002

Impair Defenses

T1629

Prevent Application Removal

T1629.001

Input Injection

T1516

Credential Access

Access Notifications

T1517

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

Access Notifications

T1517

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.boyhowfaac/cache/cxeyzfr

Filesize
448KB

MD5
7aa0a89f11572e256046555ffff2ba59

SHA1
2861542bad314eb2801ce82e93ee910bdc3f74e6

SHA256
78a4c35eb7d7ed3bfcd127c7056abea08e512aa42c1c2a0a5d31f4f7f45e9d6e

SHA512
c898165ecd3848d6ed4be1c2f8632cd42344e3ee6fd2afbe820c1222ea9639bd2da83c49a935ef7d22a2981e628723efe0b2b560eadda072ee755f5c7560c814

Download Submit
/data/data/com.boyhowfaac/cache/oat/cxeyzfr.cur.prof

Filesize
499B

MD5
fc396f9b37ebb6462d4eeaab80e691f7

SHA1
29cd51b2e3e84136ea2f2474ad23f04cedbdb866

SHA256
811607fce372fdf1b703034c90322d963b61e13e7f07bd0036e304acd8ffe13c

SHA512
3faf02027175b2c30e05d9f814751cc097ec19af5003843f934e5bd92f8f301d2e05b57d41068cabf82288c9ab77b9b9d24a72683836c3344cd1e358dc9bf474

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads