octo | 1961e45672a5f8efe13bdb61abf2801486091f4c1170ec90b251584efb1613d6

Analysis

max time kernel
149s
max time network
150s
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
08/01/2025, 22:05

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General

Target

1961e45672a5f8efe13bdb61abf2801486091f4c1170ec90b251584efb1613d6.apk
Size

541KB
MD5

9b4b09ada0db69515a227bbbd97a8660
SHA1

fdc36a054d701811ceb472144e6283ff44dc3712
SHA256

1961e45672a5f8efe13bdb61abf2801486091f4c1170ec90b251584efb1613d6
SHA512

b7a4707870602c61e50ba6e43276e04d4131ffcd7e5760ae3724f7302276fa15a6c8843d291bee6e9a04ffdc8e6d30da5f21e370e4a809c4ceac7fcd0289bbe2
SSDEEP

12288:KBQgQ1Efoig1e/YDj/FvSB4tymAYrGkdwnbhY+3gBxhmn4gmU5p4ZnhbGp:vgVgXw/YDj/FvGur5InbhkBPQJp4ZnU

Score

10^/10

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

Malware Config

Extracted

Family

octo

https://179.43.142.190/MDQ4Yzc4NTJkYTg4/

https://azisswravaas.xyz/MDQ4Yzc4NTJkYTg4/

https://azisswravaas1.xyz/MDQ4Yzc4NTJkYTg4/

https://azisswravaas2.xyz/MDQ4Yzc4NTJkYTg4/

https://azisswravaas5.xyz/MDQ4Yzc4NTJkYTg4/

https://azisswravaas34.xyz/MDQ4Yzc4NTJkYTg4/

https://azisswrav44as2.xyz/MDQ4Yzc4NTJkYTg4/

https://azisswrava333as2.xyz/MDQ4Yzc4NTJkYTg4/

rc4.plain

Extracted

Family

octo

https://179.43.142.190/MDQ4Yzc4NTJkYTg4/

https://azisswravaas.xyz/MDQ4Yzc4NTJkYTg4/

https://azisswravaas1.xyz/MDQ4Yzc4NTJkYTg4/

https://azisswravaas2.xyz/MDQ4Yzc4NTJkYTg4/

https://azisswravaas5.xyz/MDQ4Yzc4NTJkYTg4/

https://azisswravaas34.xyz/MDQ4Yzc4NTJkYTg4/

https://azisswrav44as2.xyz/MDQ4Yzc4NTJkYTg4/

https://azisswrava333as2.xyz/MDQ4Yzc4NTJkYTg4/

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
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
4220	com.blackgrow19

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.blackgrow19/cache/jxskoqajhblvka	4220	com.blackgrow19
/data/user/0/com.blackgrow19/cache/jxskoqajhblvka	4220	com.blackgrow19

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.findAccessibilityNodeInfosByViewId	com.blackgrow19
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.blackgrow19

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.blackgrow19

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.blackgrow19

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.blackgrow19
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.blackgrow19

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.blackgrow19

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.blackgrow19

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.blackgrow19

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.blackgrow19

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.blackgrow19

com.blackgrow19
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:4220

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

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Downloads

/data/data/com.blackgrow19/cache/jxskoqajhblvka

Filesize
450KB

MD5
7167fa7cc6caa67319157c6bf3d1992e

SHA1
e8c54ddb386997c05731c429e2eddc886fca0dbf

SHA256
854845029d74db0dafe75b014a974b0a0c9955fb7ef86404d94279d6ed7b066d

SHA512
a5da43b9da9dd10e4301600eb31ca511b78cfaa091f3e698cb8bc553e61229ea733dffe90e7c5e210d76e40a3d732f278e1d4b330f6e144cb7d1f00abdea2532

Download Submit
/data/data/com.blackgrow19/cache/oat/jxskoqajhblvka.cur.prof

Filesize
518B

MD5
9eb6225174026ee328382b169180c626

SHA1
9bbfda44cf5edd2a269219a9e77324b8d47e7d3c

SHA256
5d9e0385cd2d0e307a305d6283e67e2105e9a21b12612d45c1bb4c7a040747fc

SHA512
05047ccf3ca6a99b6b4932268f17dd50ac4ae205d975fc41c44a2af30605c099b0778b96c7dd71a87f1af9f8e6f8f1f459408221649956208597aa2b27d4987d

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Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads