octo | aeb6e4805515dd992a8d70bdee180a2ce5e4516b0927c8bce2592cae0e42b7c2

Analysis

max time kernel
17s
max time network
29s
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
01-12-2024 22:06

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General

Target

aeb6e4805515dd992a8d70bdee180a2ce5e4516b0927c8bce2592cae0e42b7c2.apk
Size

9.8MB
MD5

1484df717869ce10eeaf4ad1d6c3dcfe
SHA1

9611c6defcc0e301aa7ce26cc7e7785e4964fc25
SHA256

aeb6e4805515dd992a8d70bdee180a2ce5e4516b0927c8bce2592cae0e42b7c2
SHA512

098ae1a718826533d3b2ac9d57edb1555aeeb7a112608d943fd58bc658446128641d9a1306b20dcea92a569ad9205d2e23f26046cd83cdbb2ae9f6029894eef3
SSDEEP

196608:mUUj7/ReeGqyEFVtaX0MN7IdYPe4j7h0brwUU:m/pYPQrw1

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/4336-1.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.djpaint_restoremg

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.djpaint_restoremg/app_shaft/ComAS.json	4361	/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.djpaint_restoremg/app_shaft/ComAS.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.djpaint_restoremg/app_shaft/oat/x86/ComAS.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.djpaint_restoremg/app_shaft/ComAS.json	4336	com.djpaint_restoremg
Anonymous-DexFile@0xccc78000-0xcccfb7c4	4336	com.djpaint_restoremg

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

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.djpaint_restoremg

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.djpaint_restoremg

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.djpaint_restoremg

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.djpaint_restoremg

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.djpaint_restoremg

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.djpaint_restoremg

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.djpaint_restoremg

com.djpaint_restoremg
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:4336
- /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.djpaint_restoremg/app_shaft/ComAS.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.djpaint_restoremg/app_shaft/oat/x86/ComAS.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4361

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.djpaint_restoremg/.global.com.djpaint_restoremg

Filesize
48B

MD5
046a414913add6f5bb60072c7db819b6

SHA1
451ee4f6809260aec622d772fd329c7d0297a842

SHA256
b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

SHA512
4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

Download Submit
/data/data/com.djpaint_restoremg/app_shaft/ComAS.json

Filesize
1003B

MD5
e2cc1a3d2408c77bdd06b8a21e365482

SHA1
eabea178bf68986b3df72b396ccb3675deeb9fda

SHA256
bfe9596217cf738a4a5782f0c2be3ddd72caef235b3306a0a6c3d1a81fd1cf1a

SHA512
40e1575829c2a921bb45dc5cd6243d6e1b0c0ae058c8bf75d9aa3ccb52f7d2b212f0aa4cd687855b8ab180ddfab7845db23e6b4e9170743c29c4ad79f9eaa03a

Download Submit
/data/data/com.djpaint_restoremg/app_shaft/ComAS.json

Filesize
1003B

MD5
2493f7609d439148bfcd1296bb3741d5

SHA1
9304da43db2b5794840286b48031fd8e389acad3

SHA256
bc05a29f9a4c3cfe066f4b9e952ce14317cc351bbd6fa17880800e8fb72d26b1

SHA512
c54ad75df281b849e3d23cd69aba6fe06924439d9eb1ba153bc8e8fb96d9c5bfe35a95541820752eb11880c1d5f7c7f05e0c3d77af36131a2837530ba4e24f70

Download Submit
/data/data/com.djpaint_restoremg/files/.k

Filesize
307KB

MD5
4e73947cabb5db3f92ca85004981b754

SHA1
6d9667fdb0280ed2dcb782b4683e422a51bdc601

SHA256
6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

SHA512
be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

Download Submit
/data/user/0/com.djpaint_restoremg/app_shaft/ComAS.json

Filesize
1KB

MD5
316d03a3e7984ce9b6bcfa5d524b083a

SHA1
50ef7721677e5b7e48cb3bc1dab921843b9ecace

SHA256
30f797d35f38ec731c709cd476417f95f6c519ed63546daf0e1e63c92ad1393c

SHA512
65837a655b18330072193e02e66dbc9f09a02761705dbfb8886252e31892cbe4cc8510050188043fcfce069fe9c4c2fd7b168a94b5c57c73aab3102de1e7cdf6

Download Submit
/data/user/0/com.djpaint_restoremg/app_shaft/ComAS.json

Filesize
1KB

MD5
5d26436221d8b9678dcc666936c7c0cd

SHA1
dbc204068f2adc68b2d807a01b0e76a4b97aff8a

SHA256
4e7e5ec8a0b9c83625ae35c28af3ac12ca5dac07420c58fc7f1f5f6a4efceae5

SHA512
6672bd73ffc170cf3c74b7fe9eef34faffde5311293bf13dca96b6b73fad60e4b236893a126d20ac68885764eb3b07eb417491b61bc2b6551f25ffca0614bfc0

Download Submit
Anonymous-DexFile@0xccc78000-0xcccfb7c4

Filesize
525KB

MD5
0268aa81c92e8a1a014b0a7d72b8ca17

SHA1
5391a6fe221c6ac7a1a3f3f05281d4210e791a9d

SHA256
9d7f0d819accdaf3dfa2ac35ffb75785a156a4b6bd17cbae661d1b90b33ba21e

SHA512
21d2d995d03774e1a7abaff763ef1ccb69d3b95d0bf7776ceeef5a1b18594c768486e0234947445676d9b0665588056fbbe999c0df23b3b312362b05504ac79f

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads