octo | ee1d0e5d105db1137e1e9fdca5a39c421ab0c34ebe910d93d07134ba961402df

Analysis

max time kernel
138s
max time network
132s
platform
android_x64
resource
android-33-x64-arm64-20240624-en
resource tags

androidarch:arm64arch:x64image:android-33-x64-arm64-20240624-enlocale:en-usos:android-13-x64system
submitted
21-01-2025 06:02

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General

Target

file.apk
Size

7.8MB
MD5

658425d4180adbec4daa13cf85ccfe0a
SHA1

372e95427ff9389325479e45344fc2bb606583b8
SHA256

ee1d0e5d105db1137e1e9fdca5a39c421ab0c34ebe910d93d07134ba961402df
SHA512

ccee973a5069a5fe967e7178b2196d1a2f2b7703a101aa7fa96eca1e43b32066475ec9549e0a8249b279eb79a59885250f5b5aaf12d2aeefa4e3c8b4327ea09b
SSDEEP

98304:YSXb8paL+7HFe/nOF0yRs8mS5iSRG55BS3XqVKjQ:Yx7HFefOKyRpRr4Y3XqUk

Score

10^/10

octo banker collection credential_access defense_evasion 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
behavioral2/memory/4317-1.dex	family_octo

Loads dropped Dex/Jar 1 TTPs 2 IoCs

Runs executable file dropped to the device during analysis.

evasion

Download New Code at Runtime

T1407

ioc	pid	Process
/data/user/0/com.ihwriting_enterprisey/app_skill/PJG.json	4317	com.ihwriting_enterprisey
/data/user/0/com.ihwriting_enterprisey/[email protected]	4317	com.ihwriting_enterprisey

Makes use of the framework's Accessibility service 4 TTPs 2 IoCs

Retrieves information displayed on the phone screen using AccessibilityService.

collection defense_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.ihwriting_enterprisey
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.ihwriting_enterprisey

Obtains sensitive information copied to the device clipboard 2 TTPs 1 IoCs

Application may abuse the framework's APIs to obtain sensitive information copied to the device clipboard.

collection credential_access impact

Clipboard Data

T1414

Transmitted Data Manipulation

T1641.001

description	ioc	Process
Framework service call	android.content.IClipboard.addPrimaryClipChangedListener	com.ihwriting_enterprisey

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.ihwriting_enterprisey

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.

defense_evasion persistence

Foreground Persistence

T1541

description	ioc	Process
Framework service call	android.app.IActivityManager.setServiceForeground	com.ihwriting_enterprisey

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.ihwriting_enterprisey

Reads information about phone network operator. 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

defense_evasion

User Evasion

T1628.002

description	ioc	Process
Intent action	android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	com.ihwriting_enterprisey

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.ihwriting_enterprisey

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.ihwriting_enterprisey

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.ihwriting_enterprisey

com.ihwriting_enterprisey
1⤵
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- Obtains sensitive information copied to the device clipboard
- 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).
- Uses Crypto APIs (Might try to encrypt user data)
- Checks CPU information
- Checks memory information
PID:4317

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Persistence

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

Clipboard Data

T1414

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

Clipboard Data

T1414

Input Capture

T1417

GUI Input Capture

T1417.002

Keylogging

T1417.001

Screen Capture

T1513

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

T1471

Data Manipulation

T1641

Transmitted Data Manipulation

T1641.001

Input Injection

T1516

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Downloads

/data/data/com.ihwriting_enterprisey/.global.com.ihwriting_enterprisey

Filesize
48B

MD5
046a414913add6f5bb60072c7db819b6

SHA1
451ee4f6809260aec622d772fd329c7d0297a842

SHA256
b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

SHA512
4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

Download Submit
/data/data/com.ihwriting_enterprisey/app_skill/PJG.json

Filesize
1002B

MD5
96a600a7d517738a15dc52c21244ac1f

SHA1
5a7be1a87d949da3dc2a6ef7b0a022e65676891a

SHA256
83dcf0f3ef6736326801f7291aa3bf512169e906a790257e2ad8726886261f2c

SHA512
034cf45457f84ce1958a67e7f74c346ba3eea0783c984f91942b5f98d979eeb0736bbced98581e6904843deb380b1f4181267e6e75566dbec178a4293a5e8db1

Download Submit
/data/data/com.ihwriting_enterprisey/app_skill/PJG.json

Filesize
1002B

MD5
b9413a293e67b6928d5b4de1e4d13298

SHA1
6ffeeade76569c17d087c95c93c5caa362af85c2

SHA256
b6eaeee47094372201b0b7be6beb62414ecbb2a38f998f281394ac1349a3f359

SHA512
79b1c88fc2cc296a044016b58a238d8691cf4528a5ce84c80175fdfbe0409ce0c9110064777b82c68e034ceddffadd2935d86cdad0e9591665bfed6b13e54343

Download Submit
/data/data/com.ihwriting_enterprisey/files/.t

Filesize
322KB

MD5
77dc50489b9323274732d27dc8a4e803

SHA1
0e02a3595b62489d0739d771881da8604d117c65

SHA256
c5684e792d1ebefea6aac09fed45911703fd58c899f8a08133d49dd91429a820

SHA512
0684a92f3e9c525384cfa53f531afba61e5930e1c27032a7e27e3315f72761b62e122dc34768d8162ba08f9bed53d148aa8dc034b46456bdd211f230637eba58

Download Submit
/data/data/com.ihwriting_enterprisey/oat/x86_64/[email protected]

Filesize
13KB

MD5
72b7386c3404b02f92de3852c7cf34c8

SHA1
f83d85f827303fd70a0d9b2a1b4b25e16e2ac50a

SHA256
1af049a0e9ff16849cc8e2de71ff21daf065a7736ac310789e8d6382e03ab6cc

SHA512
a62ff2cc15ece8e99bf3d62aed26b70f491d28a984430f1272f53319b8a70af2c00691007f87fe1940c6c8f6476f01875ae755f8eb71008a25d4714009f35e56

Download Submit
/data/user/0/com.ihwriting_enterprisey/[email protected]

Filesize
526KB

MD5
d1685e75ae7b4ec2e3b03143e28b2106

SHA1
74090ba51e815045e766a31d8ee06e14f7b88da6

SHA256
7a22f8459f6f2152f1c3cfe232500e2646aa42074d286008386402316be110cd

SHA512
52639ace7b60193452830b6c700bf0608a222c549acd20447681312a09ae25109ba509374c14bd3a9ec70c4687b3a810379b39566a227d87c0f5f3a04168206b

Download Submit
/data/user/0/com.ihwriting_enterprisey/app_skill/PJG.json

Filesize
1KB

MD5
38587920acc5aedd879cf96a2d792d3f

SHA1
ffea56eb36f31b862660902f1ce738e172694996

SHA256
f2fec55b1ab71c92da670b46f82b9a7f05f9cc1fa9d35ca9606941a7290d3fb5

SHA512
fb9df1df6f258abf9bc800ed0cfd5df80173f32bc90825b904b6bd0b7b2a547bd94201eddf0b047679153e908fffdd6c769fb69c9a4262d2cc61fc66cb60cb95

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads