octo | 8deff25f418a81f5a5220c3e8c6e1a40ee1214b59104057b9156968b9e6c3eb6

Analysis

max time kernel
65s
max time network
160s
platform
android-10_x64
resource
android-x64-20240910-en
resource tags

arch:x64arch:x86image:android-x64-20240910-enlocale:en-usos:android-10-x64system
submitted
10/01/2025, 22:01

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General

Target

8deff25f418a81f5a5220c3e8c6e1a40ee1214b59104057b9156968b9e6c3eb6.apk
Size

4.0MB
MD5

ebbcd27a011a4d0a11092560e3d7dba0
SHA1

704083a300f4f1a28ed94f7fc9c38fefdf6f678e
SHA256

8deff25f418a81f5a5220c3e8c6e1a40ee1214b59104057b9156968b9e6c3eb6
SHA512

97bc631bcd44fbd248cac5562916bc39dd97d2b97d940fa7398275197f2598c49c58b14c6f25a8c26b7083f6c724bbdf7497378d2619f2a3eca7fb9de80efbc3
SSDEEP

98304:QnWTcF58XLe/nxIIrn8qtQU+qnBr6LHwxIJGoLlKAu+UYieu/kxo/Vz6jsUsqJu4:9FE/QjsiuG12UV

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

https://ruceayipma.xyz/YjVmNGU0NmNhODlm/

https://yapayzekaisyanlari.xyz/YjVmNGU0NmNhODlm/

https://makineordulariyukseliyor.xyz/YjVmNGU0NmNhODlm/

https://teknolojinisyanhikayesi.xyz/YjVmNGU0NmNhODlm/

https://robotkorsanlargeliyor.xyz/YjVmNGU0NmNhODlm/

https://dunyayirobotlarkapliyor.xyz/YjVmNGU0NmNhODlm/

https://mekanikordularinintikam.xyz/YjVmNGU0NmNhODlm/

https://otomasyonkalesindemucadele.xyz/YjVmNGU0NmNhODlm/

https://robotlarvemakineisyanlari.xyz/YjVmNGU0NmNhODlm/

https://teknolojikseferberlik.xyz/YjVmNGU0NmNhODlm/

https://yapayordularinhikayesi.xyz/YjVmNGU0NmNhODlm/

https://makinevekodisyancilari.xyz/YjVmNGU0NmNhODlm/

https://mekanikorduyolculugu.xyz/YjVmNGU0NmNhODlm/

https://robotikturunculer.xyz/YjVmNGU0NmNhODlm/

https://mekanikisyanveteknoloji.xyz/YjVmNGU0NmNhODlm/

https://makineuyanikaynaklari.xyz/YjVmNGU0NmNhODlm/

https://mekanikseferisyani.xyz/YjVmNGU0NmNhODlm/

https://yapayzekauyanislari.xyz/YjVmNGU0NmNhODlm/

https://robotinsanvedunyavasfi.xyz/YjVmNGU0NmNhODlm/

https://dunyayisaranmekanik.xyz/YjVmNGU0NmNhODlm/

rc4.plain

Extracted

Family

octo

https://ruceayipma.xyz/YjVmNGU0NmNhODlm/

https://yapayzekaisyanlari.xyz/YjVmNGU0NmNhODlm/

https://makineordulariyukseliyor.xyz/YjVmNGU0NmNhODlm/

https://teknolojinisyanhikayesi.xyz/YjVmNGU0NmNhODlm/

https://robotkorsanlargeliyor.xyz/YjVmNGU0NmNhODlm/

https://dunyayirobotlarkapliyor.xyz/YjVmNGU0NmNhODlm/

https://mekanikordularinintikam.xyz/YjVmNGU0NmNhODlm/

https://otomasyonkalesindemucadele.xyz/YjVmNGU0NmNhODlm/

https://robotlarvemakineisyanlari.xyz/YjVmNGU0NmNhODlm/

https://teknolojikseferberlik.xyz/YjVmNGU0NmNhODlm/

https://yapayordularinhikayesi.xyz/YjVmNGU0NmNhODlm/

https://makinevekodisyancilari.xyz/YjVmNGU0NmNhODlm/

https://mekanikorduyolculugu.xyz/YjVmNGU0NmNhODlm/

https://robotikturunculer.xyz/YjVmNGU0NmNhODlm/

https://mekanikisyanveteknoloji.xyz/YjVmNGU0NmNhODlm/

https://makineuyanikaynaklari.xyz/YjVmNGU0NmNhODlm/

https://mekanikseferisyani.xyz/YjVmNGU0NmNhODlm/

https://yapayzekauyanislari.xyz/YjVmNGU0NmNhODlm/

https://robotinsanvedunyavasfi.xyz/YjVmNGU0NmNhODlm/

https://dunyayisaranmekanik.xyz/YjVmNGU0NmNhODlm/

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/memory/5107-0.dex	family_octo

Loads dropped Dex/Jar 1 TTPs 1 IoCs

Runs executable file dropped to the device during analysis.

evasion

Download New Code at Runtime

T1407

ioc	pid	Process
/data/user/0/com.fish.mask/app_napkin/ZyHhi.json	5107	com.fish.mask

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.fish.mask
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.fish.mask

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.fish.mask

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.fish.mask

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.fish.mask
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.fish.mask
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.fish.mask
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.fish.mask

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.fish.mask

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.fish.mask

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.fish.mask

com.fish.mask
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:5107

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

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Downloads

/data/data/com.fish.mask/app_napkin/ZyHhi.json

Filesize
153KB

MD5
2112f476148f6ab83cb50e761ff7a17b

SHA1
cac9fbf6345457805fbc07af6e377dbdc0f2e5aa

SHA256
275e3966d8fc9c48c4f0ed751503ea586cd5325c84c96d4f5d36d10d05121fd8

SHA512
3b5ca673283bfa3b3972afed3be20657a57f2f8679c9a6967a8af3777b21cf5a553afcd8ebcc2c87c93c20a0630277f1474c1e17a8e4304299edcea09c1fa382

Download Submit
/data/data/com.fish.mask/app_napkin/ZyHhi.json

Filesize
153KB

MD5
cf50a2c3d0503b502f14c4b04d238e86

SHA1
24f22da32b25cb527d4b175af65763f70b231012

SHA256
21d3d37181f9efea4d34d74ed4d7a04143a5dfd47a321b57f0d6276412941a91

SHA512
addcbeb96124bbfd05a85d42e8c4b914a24549ff8fdabc3b891ea978c33f10c786aae3c025be1e114f153e612da5c2cfc8251f0832c720d0e52cc3dd4d56a9af

Download Submit
/data/user/0/com.fish.mask/app_napkin/ZyHhi.json

Filesize
450KB

MD5
58f4f68b8ba33d287d804d89da9b9f90

SHA1
dc9b23bf32018e42c9c88dee1aa618dcf1f517c1

SHA256
bc182f65127f84d99b82299f7c840a6d19dfc563c90972ed6363bf9fafb8f0fb

SHA512
8d572776ce287701e549c713056016843185df26a34ee8c9bc42f271d8401a7ed69d0276567fa9bf448eedff475f1ca665bf795b16ae6bd3f0298a8913beba33

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads