octo | 0338989191ce53a1a4adf3d4dd5471e470a299f6e8a30b1aa1858e1bc1b5f203

Analysis

max time kernel
20s
max time network
37s
platform
android_x86
resource
android-x86-arm-20240624-en
resource tags

androidarch:armarch:x86image:android-x86-arm-20240624-enlocale:en-usos:android-9-x86system
submitted
21-10-2024 23:45

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General

Target

0338989191ce53a1a4adf3d4dd5471e470a299f6e8a30b1aa1858e1bc1b5f203.apk
Size

7.9MB
MD5

51f9f4196f87f456a7e246fb9659a486
SHA1

721090ca68835f3957552fe4e41335cdf046a74c
SHA256

0338989191ce53a1a4adf3d4dd5471e470a299f6e8a30b1aa1858e1bc1b5f203
SHA512

7934b833adad63329bb3a258553ad1e09baa17f3312a1d9e5905b7c3ab1a5616249d5b88b6dd6bef9a68c65b07dc6daad5cce874d94c1b2f3b10089e4180d00f
SSDEEP

98304:Ed2/CHRshfrc3XKVKEW5iSRGax8Czeu6F8HSKXnEWIgnGMiS4rKtGag8dZC:Ew/QRYfw3XKUXrd8keunHXxXnnIKtzK

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

DES_key

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/memory/4256-2.dex	family_octo

Checks Android system properties for emulator presence. 1 TTPs 1 IoCs

evasion

System Checks

T1633.001

description	ioc	Process
Accessed system property	key: ro.product.model	com.jfactory_turbo2

Loads dropped Dex/Jar 1 TTPs 4 IoCs

Runs executable file dropped to the device during analysis.

evasion

Download New Code at Runtime

T1407

ioc	pid	Process
/data/user/0/com.jfactory_turbo2/app_dex/classes.dex	4256	com.jfactory_turbo2
/data/user/0/com.jfactory_turbo2/app_dex/classes.dex	4281	/system/bin/dex2oat --instruction-set=x86 --instruction-set-features=ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt --runtime-arg -Xhidden-api-checks --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --inline-max-code-units=0 --compact-dex-level=none --dex-file=/data/user/0/com.jfactory_turbo2/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.jfactory_turbo2/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.jfactory_turbo2/app_dex/classes.dex	4256	com.jfactory_turbo2
Anonymous-DexFile@0xd2bf8000-0xd2c7b6a4	4256	com.jfactory_turbo2

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.jfactory_turbo2
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.jfactory_turbo2

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.jfactory_turbo2

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.jfactory_turbo2

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.jfactory_turbo2

Queries the unique device ID (IMEI, MEID, IMSI) 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.jfactory_turbo2

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.jfactory_turbo2

Checks CPU information 2 TTPs 1 IoCs

System Checks

T1633.001

System Information Discovery

T1426

description	ioc	Process
File opened for read	/proc/cpuinfo	com.jfactory_turbo2

Checks memory information 2 TTPs 1 IoCs

System Checks

T1633.001

System Information Discovery

T1426

description	ioc	Process
File opened for read	/proc/meminfo	com.jfactory_turbo2

com.jfactory_turbo2
1⤵
- Checks Android system properties for emulator presence.
- 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
- 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)
- Checks CPU information
- Checks memory information
PID:4256
- /system/bin/dex2oat --instruction-set=x86 --instruction-set-features=ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt --runtime-arg -Xhidden-api-checks --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --inline-max-code-units=0 --compact-dex-level=none --dex-file=/data/user/0/com.jfactory_turbo2/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.jfactory_turbo2/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4281

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

Input Injection

T1516

Virtualization/Sandbox Evasion

T1633

System Checks

T1633.001

Credential Access

Input Capture

T1417

GUI Input Capture

T1417.002

Keylogging

T1417.001

Discovery

Software Discovery

T1418

Security Software Discovery

T1418.001

System Information Discovery

T1426

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.jfactory_turbo2/.global.com.jfactory_turbo2

Filesize
48B

MD5
046a414913add6f5bb60072c7db819b6

SHA1
451ee4f6809260aec622d772fd329c7d0297a842

SHA256
b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

SHA512
4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

Download Submit
/data/data/com.jfactory_turbo2/app_dex/classes.dex

Filesize
1KB

MD5
24e6e7e5ce4dc149ce8c453c9959d62b

SHA1
c3951360c12084740920625f8c07723b660a1d3f

SHA256
e4d29ffa1511cf13a4dbe7fb380fbb83ee6ebb50efdb059566f2bb48eab15150

SHA512
73bfe26d9e22a59617f976303132b9696d99f80e680126ef8c87f94243bc945916fb1eaaa954fd9009c0b95155fd744b91c1d17b46e593d3447c0909b0167107

Download Submit
/data/data/com.jfactory_turbo2/cache/classes.dex

Filesize
1KB

MD5
41f36fc271c8b472a27f26b89db42b49

SHA1
a238e535c61eed5dce55930ac8b713b201129d3f

SHA256
2874288c2bad21b759246e79c7c258780168dc3d7a0fad18dd4346c2b93a8e23

SHA512
f81537650ec9243cc5bc0db2087cf029e523b30c7eeb57f584c157221539abd8ace3708e16d5040271b76ad00cf750a1c783543504c3bb1461c1f5e60f5af94c

Download Submit
/data/data/com.jfactory_turbo2/cache/classes.zip

Filesize
1KB

MD5
dd25b5f1b01a92a156465e68981c1771

SHA1
c1c4375be3b3aa87228430e602a065da15855ee3

SHA256
e5f40407e6094100bd4e6915d47252f7765983174eee4971ddd4264c02fab9db

SHA512
b2a486ba6ab902e29502ceb3b9c4562c191b0815971a49dc4f5e5b762d931339bb355680f87548cb78711e20a7e358391779293eac48963a0e37d028efa8e889

Download Submit
/data/data/com.jfactory_turbo2/files/.q

Filesize
307KB

MD5
4e73947cabb5db3f92ca85004981b754

SHA1
6d9667fdb0280ed2dcb782b4683e422a51bdc601

SHA256
6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

SHA512
be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

Download Submit
/data/user/0/com.jfactory_turbo2/app_dex/classes.dex

Filesize
1KB

MD5
a9f4a50b7222e97ffe9373df465dfbc1

SHA1
c406ef4805bcf9794afb31d40227094fc4fbd458

SHA256
2dd8f5f492dc8343d34974b3757054ae5df0605b093d8e8ce92e7bdd6b055155

SHA512
0d5c8ed90920a9e958f41e44bdff0f05582f69a17dc5f07980ba63ea6a292f46a052c5c138804362945eb89c6efcb5074d711148b2c4c709ade6fe1e185e031a

Download Submit
Anonymous-DexFile@0xd2bf8000-0xd2c7b6a4

Filesize
525KB

MD5
14a5f687445a10c28004ecdb15208a22

SHA1
89965327d07325ff8011aefd17f6a1782667e226

SHA256
3263ab77064a9d93635f571d6671611ab89d8955b55dd361d89481f7139d219f

SHA512
126457c17a9ba9242a39f54941e37d601ba4fc03a2d47bf30dcd16407d94214e5c4e86bb37a766a0db056258069c2f3a5d8805bcafc7c96984731a08c3f59edf

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads