octo | a07ff33cbab6fe694a172b8b50993621b06a8ced096d41b20c872cdd3dee6891

Analysis

max time kernel
24s
max time network
35s
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
11-01-2025 16:23

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General

Target

a07ff33cbab6fe694a172b8b50993621b06a8ced096d41b20c872cdd3dee6891.apk
Size

8.7MB
MD5

fbac3698eda03719feb4535262a6ad14
SHA1

0b297b4b4c8396077210bb718c8dddaa0bf1d50f
SHA256

a07ff33cbab6fe694a172b8b50993621b06a8ced096d41b20c872cdd3dee6891
SHA512

0c1b52567532cab0c9b3ea29d851dec8f610d3194eb4c33f3c00b2b5d044a722c9370be6463499940fbddd226a025f380596ba1b49616a23595e5b3e7f7d6f69
SSDEEP

98304:9hbOGN1jp5XXoRcjVRsRGLrShv5iSRG93qzYj7SVK8b+F:XxpdXoqJRihvrmq0j7SUr

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/4251-1.dex	family_octo

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.cell_bluetoothq4/app_chest/CqDC.json	4277	/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.cell_bluetoothq4/app_chest/CqDC.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.cell_bluetoothq4/app_chest/oat/x86/CqDC.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.cell_bluetoothq4/app_chest/CqDC.json	4251	com.cell_bluetoothq4
Anonymous-DexFile@0xd2572000-0xd25f5768	4251	com.cell_bluetoothq4

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.cell_bluetoothq4
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.cell_bluetoothq4

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.cell_bluetoothq4

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.cell_bluetoothq4

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.cell_bluetoothq4

Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
discovery

System Network Configuration Discovery
T1422

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.cell_bluetoothq4

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.cell_bluetoothq4

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.cell_bluetoothq4

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.cell_bluetoothq4

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.cell_bluetoothq4

com.cell_bluetoothq4
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
- Queries the mobile country code (MCC)
- 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)
- Checks CPU information
- Checks memory information
PID:4251
- /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.cell_bluetoothq4/app_chest/CqDC.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.cell_bluetoothq4/app_chest/oat/x86/CqDC.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4277

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

User Evasion

T1628.002

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.cell_bluetoothq4/.global.com.cell_bluetoothq4

Filesize
48B

MD5
046a414913add6f5bb60072c7db819b6

SHA1
451ee4f6809260aec622d772fd329c7d0297a842

SHA256
b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

SHA512
4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

Download Submit
/data/data/com.cell_bluetoothq4/app_chest/CqDC.json

Filesize
1010B

MD5
23a5a2c5f351f07d5a638c45be79f280

SHA1
b3b49d0a747e1b34ccf7653c558a328a1194debb

SHA256
a245d86e5cf6acdb3a86c4aa91a182e87d43dfe1d3aacd1c521cfb1a961ed36e

SHA512
5c879beebe7d59b05127b8bdc7998a2f9e7a161b970699e954cfca7a658db3d3981740fb4f5f023da8e6f0931909f3690f2d0ef4ed7a58f6167908a2ab7df66a

Download Submit
/data/data/com.cell_bluetoothq4/app_chest/CqDC.json

Filesize
1010B

MD5
d58d95cd62f55975a77001ab6d72bdf6

SHA1
6e469c10e9eb939d51adc545b6fd7f4992e100bf

SHA256
d901465c02c44b9407c135e3fda53e1a97327966aa0702faaf7960db84187bc6

SHA512
05c984d66ec1b01fc32ef2a0663adb318fddb0ac402696cbefa3bf6834a67aeceeba74a8ab10d724671bd02f6be08318e73caa78c3f22bb2aa9e7dc620f9555b

Download Submit
/data/data/com.cell_bluetoothq4/files/.b

Filesize
307KB

MD5
4e73947cabb5db3f92ca85004981b754

SHA1
6d9667fdb0280ed2dcb782b4683e422a51bdc601

SHA256
6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

SHA512
be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

Download Submit
/data/user/0/com.cell_bluetoothq4/app_chest/CqDC.json

Filesize
1KB

MD5
1fc631964b5de6bbacc9abaee323662c

SHA1
6324cfcd962da11c0f19f358883b53f4f45e6c2c

SHA256
8408bad0eb0f26a59136a917ff5ca522252bd60c0da96c2ec1752da963974d22

SHA512
5f82489f31337f58d0ce1e0ddcd6847b732abc072d5f33148ae032b1dff1106c13a4ada8508f532e0962c40a89e72cb9119a696bb12bf68731613a70356ec4eb

Download Submit
/data/user/0/com.cell_bluetoothq4/app_chest/CqDC.json

Filesize
1KB

MD5
ca67c53fec6a090ab7917936a1938561

SHA1
fd994cda34e5f1ac7a7f4205db2bf6e3a37941cb

SHA256
bb8c19618ae3fa6e88bee9266ceafdebc213390b60fb50f391681643ded11514

SHA512
957dbdd9d25434f4fd6a9fb9835df38748ed785ab6a96b1774f0b2b0cad1af7a10f7e93b86114a2d2cfad7f13982c6b10a22cfa53bbb3a9366334934e22ae437

Download Submit
Anonymous-DexFile@0xd2572000-0xd25f5768

Filesize
525KB

MD5
818826dfe003780abc0e4c70765e3823

SHA1
3ba3ced790681ece3fc5f2a5a8f0b9102a29a317

SHA256
829ed2b7e794ec50d5eda63042982e2503104103c9c01b4140a29d686a1b4481

SHA512
e9618d6732daac4938c7e8b3e7bf45dc04bf76f8178e5c7607d8c95302d3d7a61108c379f0d31b2e7a0a2f3b88ca6d067c318c2ab4d192e2a0acfaaf3f101a59

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads