octo | 4c5789817b114e9dd33ebf1766f2c3d1c4b2bd08753b8b2d426600b291561599

Analysis

max time kernel
17s
max time network
30s
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
11-01-2025 16:40

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General

Target

4c5789817b114e9dd33ebf1766f2c3d1c4b2bd08753b8b2d426600b291561599.apk
Size

6.9MB
MD5

9abccf07e26e9b842909e5c21066b24e
SHA1

a5dbf3dcfe14240686000cadd542a24a3ab9bffe
SHA256

4c5789817b114e9dd33ebf1766f2c3d1c4b2bd08753b8b2d426600b291561599
SHA512

58c19e8f5e2c897fc67f676fb555cc338f8afa5890beb410ead7f254658634792cdc864478313e691e6299c9ad8a02bf4aba99400d9f010ec71d230b35b50884
SSDEEP

98304:DGjZsOVK395iSRGpIaQMDduvf53XjNZ93Zt99UKGP/CEYRsGl:6jtUtrLa3pQh3Xv93Zt99UKGP/CEYRvl

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

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/memory/4215-1.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.bluetooth_uwbn88

Loads dropped Dex/Jar 1 TTPs 3 IoCs

Runs executable file dropped to the device during analysis.

evasion

Download New Code at Runtime

T1407

ioc	pid	Process
/data/user/0/com.bluetooth_uwbn88/app_hand/Lpl.json	4240	/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.bluetooth_uwbn88/app_hand/Lpl.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.bluetooth_uwbn88/app_hand/oat/x86/Lpl.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.bluetooth_uwbn88/app_hand/Lpl.json	4215	com.bluetooth_uwbn88
Anonymous-DexFile@0xc7ed3000-0xc7f56758	4215	com.bluetooth_uwbn88

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.bluetooth_uwbn88
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.bluetooth_uwbn88

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.bluetooth_uwbn88

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.bluetooth_uwbn88

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.bluetooth_uwbn88

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.bluetooth_uwbn88

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.bluetooth_uwbn88

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.bluetooth_uwbn88

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.bluetooth_uwbn88

com.bluetooth_uwbn88
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:4215
- /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.bluetooth_uwbn88/app_hand/Lpl.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.bluetooth_uwbn88/app_hand/oat/x86/Lpl.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4240

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.bluetooth_uwbn88/.global.com.bluetooth_uwbn88

Filesize
48B

MD5
046a414913add6f5bb60072c7db819b6

SHA1
451ee4f6809260aec622d772fd329c7d0297a842

SHA256
b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

SHA512
4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

Download Submit
/data/data/com.bluetooth_uwbn88/app_hand/Lpl.json

Filesize
1010B

MD5
b78242649ba0cda704e0fea90b2d0119

SHA1
7ec7fddabc7db947c4cbd1b8a0507344d9280859

SHA256
ff23b4fac264baebbe8ccc0ef37d2cdb18c5b5087617d5489de3ab9a92674e5d

SHA512
75f007f223550a8619bd8a6e87ccfb2795ea3c56d6bcaf7593b4309693e19624f0ae4b55dcd0faee26f78ab2f5269a89cfab5e0e97c4c47d917107ed224909e3

Download Submit
/data/data/com.bluetooth_uwbn88/app_hand/Lpl.json

Filesize
1010B

MD5
57e59f5fb46c6b42504c27ca0913a4ef

SHA1
f25db42357e8951bf3eee0fb8c32370e5c9c31b1

SHA256
80d2aa91669c4953bda66e32ebc5253e700f8daa3571fc678b10896451ab3abe

SHA512
ea48c270eebb6ae42f887f5534c89c30538dcaba1c680271a73f1ba4a789b316b1f6b00370979ab08626b2519283b36acd45601d67a88edb75c7ef53157b6f19

Download Submit
/data/data/com.bluetooth_uwbn88/files/.l

Filesize
307KB

MD5
4e73947cabb5db3f92ca85004981b754

SHA1
6d9667fdb0280ed2dcb782b4683e422a51bdc601

SHA256
6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

SHA512
be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

Download Submit
/data/user/0/com.bluetooth_uwbn88/app_hand/Lpl.json

Filesize
1KB

MD5
971d067d02a69ed0abeeb24f25e94a86

SHA1
5b90d5958c28859f276d61c37c0e32a3034961ee

SHA256
10170e7b9fcdc950cc1e1626d9de0aa8aac04abc0074a5d8b39a53bc1a2fbb6b

SHA512
97ab409109cf1681d31a64c1b233d5c6d4d7744a3f546fe564a3f2173989d7e091d8607c9838e49418e40f66eab0f812baff68bfe00bb3d03bde7a5b25a30204

Download Submit
/data/user/0/com.bluetooth_uwbn88/app_hand/Lpl.json

Filesize
1KB

MD5
e0c8b64add1f5020a3727bdf541a5a9c

SHA1
44b06470ba5f494227e7bec1640367e3a525022b

SHA256
471ce50f726001cc4776bdebf5d44bb987041d33f82e51d802fefa2333bc2ef7

SHA512
29bbd2bb10fbf15d064ba6cd3d83afe49803124a764402694716af7781473dd2f3c5193cd32394748a6cf3c2a51f4c44157fe999d0813e0a37e7a73be9ec0c46

Download Submit
Anonymous-DexFile@0xc7ed3000-0xc7f56758

Filesize
525KB

MD5
1aa61c0b6fa447390e109ae5be744a7b

SHA1
c2dc47820703b14aea0ba1b1a54b3d9f266d4837

SHA256
2c5884814d7cabeceb54a7d4dd7a62294ee6110c0cb851baa76c489da8f595b2

SHA512
582e93b093538dd5ff7e99265f728f6ced9bbf9d4f3aef4737803505343193dbcc9431f22de7a8b65c3756dd122322e9b059f1aea5324bcaf0eed88ce91fee48

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads