octo | 1542fcf88977534da5fa267d9417578c71e677ca35e46ec823cd04e1aa66f640

Analysis

max time kernel
149s
max time network
150s
platform
android-10_x64
resource
android-x64-20240910-en
resource tags

arch:x64arch:x86image:android-x64-20240910-enlocale:en-usos:android-10-x64system
submitted
08-12-2024 22:01

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General

Target

1542fcf88977534da5fa267d9417578c71e677ca35e46ec823cd04e1aa66f640.apk
Size

2.4MB
MD5

2f4b1543ac6bcd5f80523d9810e05fa4
SHA1

adf6dcf2c313235c077b58e1e57c4aa312297334
SHA256

1542fcf88977534da5fa267d9417578c71e677ca35e46ec823cd04e1aa66f640
SHA512

b3865cc7fcaec35015037b1f150cb7b3cc7d2ae6314c4b27cd4ce5aa0e564dca5bd4cc2a87caf572161c3e35cc6cd0d3031daa4db15c60e7f92a9f49a5c32fa0
SSDEEP

49152:9JkqsJ102S1rjgPBIRI5/BmOdG0LdodJpqBHVCP9HYrMVy2pWYS6uIWYOGx:sv10h1AJIRIZ0eLdKaVegM0BYS6LgM

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

https://zzd768db37e5e2f5a7fbc0fe1fee5b311.com/YzhkZjQwNDRkN2Uy/

https://22d768db37e5e2f5a7fbc0fe1fee5b311.com/YzhkZjQwNDRkN2Uy/

https://34d768db37e5e2f5a7fbc0fe1fee5b311.com/YzhkZjQwNDRkN2Uy/

https://as4d768db37e5e2f5a7fbc0fe1fee5b311.com/YzhkZjQwNDRkN2Uy/

https://4d768db37e5e2f5a7fbc0fe1fee5b311.com/YzhkZjQwNDRkN2Uy/

https://44768db37e5e2f5a7fbc0fe1fee5b311.com/YzhkZjQwNDRkN2Uy/

https://466db37e5e2f5a7fbc0fe1fee5b311.com/YzhkZjQwNDRkN2Uy/

rc4.plain

Extracted

Family

octo

https://zzd768db37e5e2f5a7fbc0fe1fee5b311.com/YzhkZjQwNDRkN2Uy/

https://22d768db37e5e2f5a7fbc0fe1fee5b311.com/YzhkZjQwNDRkN2Uy/

https://34d768db37e5e2f5a7fbc0fe1fee5b311.com/YzhkZjQwNDRkN2Uy/

https://as4d768db37e5e2f5a7fbc0fe1fee5b311.com/YzhkZjQwNDRkN2Uy/

https://4d768db37e5e2f5a7fbc0fe1fee5b311.com/YzhkZjQwNDRkN2Uy/

https://44768db37e5e2f5a7fbc0fe1fee5b311.com/YzhkZjQwNDRkN2Uy/

https://466db37e5e2f5a7fbc0fe1fee5b311.com/YzhkZjQwNDRkN2Uy/

AES_key

Signatures

Octo
Octo is a banking malware with remote access capabilities first seen in April 2022.
banker trojan infostealer rat octo
Octo family
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.playcountry11/cache/dxtvd	5179	com.playcountry11
/data/user/0/com.playcountry11/cache/dxtvd	5179	com.playcountry11

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.playcountry11
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.playcountry11

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.playcountry11

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.playcountry11

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.playcountry11
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.playcountry11
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.playcountry11
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.playcountry11

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.playcountry11

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.playcountry11

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.playcountry11

com.playcountry11
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:5179

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.playcountry11/cache/dxtvd

Filesize
2.3MB

MD5
e6665a9b162c662db340ccd6e6a6aabe

SHA1
b72a7e431be786f922453d88cab170cc382d9724

SHA256
e77c501dee605f220a6a1331182227ce081f362843465784b56f1595472000a7

SHA512
1a3b21ed651126d8dab7f4f66ecc7c3eccf8d9b6bef71168aef6c26e818bf156cfe0c307308a8824ce63f931751b1df92e23c78cc1f3c325ab57e90b02d1cf6e

Download Submit
/data/data/com.playcountry11/cache/oat/dxtvd.cur.prof

Filesize
503B

MD5
78e0c32324251cf5177860b17967bbb5

SHA1
089a5c7694fbbab9fe4773b1d6746496f700c8c6

SHA256
ebe44cb9d65803f3878da33dc4a2d679ab4264fd0a447dfda3f0090f49c66f4b

SHA512
8ee7c0aa888e6962a37faa47f631ac1399dbd79bb14b7e559397fcd9a5875676f48f43909e313be1749ac2282cf026f631b938286e6a9edd67b00dff26fa7772

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads