octo | 36a96f2f4e8f948dd754a7ce959646733730f4d670d72943de9541ad52b5ddbb

Analysis

max time kernel
147s
max time network
151s
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 16:54

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General

Target

36a96f2f4e8f948dd754a7ce959646733730f4d670d72943de9541ad52b5ddbb.apk
Size

7.7MB
MD5

2bbe41f48c1b747cef60945afc345e40
SHA1

c845c410d3cb10cd1bacb64650178002f367a886
SHA256

36a96f2f4e8f948dd754a7ce959646733730f4d670d72943de9541ad52b5ddbb
SHA512

ac989b61ac5ec277b40a03cd602439573d06dd4b0f52caea63be143b4549efdabd84754614a087d90a952c50df0f612a98e22f7a770cf581d72dd745907fb211
SSDEEP

98304:gWVYm3j7dRsq4+eNe3JLa5++845iSRGYVVKrOHDtrdNkJrHq:BiGj7dRL4j84rTUiHJdNkJbq

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

https://3b9f0a8e52740e8aeb04df710e392f5b.net

https://63fbf2f62b78cc08552fcd87838b8e53.biz

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/4333-1.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.sdkgame_app5/app_seek/fPM.json	4359	/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.sdkgame_app5/app_seek/fPM.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.sdkgame_app5/app_seek/oat/x86/fPM.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.sdkgame_app5/app_seek/fPM.json	4333	com.sdkgame_app5
Anonymous-DexFile@0xc6d7c000-0xc6dff5cc	4333	com.sdkgame_app5

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.findAccessibilityNodeInfosByViewId	com.sdkgame_app5
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.sdkgame_app5

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.sdkgame_app5

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.sdkgame_app5

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.sdkgame_app5

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

System Network Configuration Discovery
T1422
Reads information about phone network operator. 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.sdkgame_app5

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.sdkgame_app5

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.sdkgame_app5

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.sdkgame_app5

com.sdkgame_app5
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)
- 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:4333
- /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.sdkgame_app5/app_seek/fPM.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.sdkgame_app5/app_seek/oat/x86/fPM.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4359

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.sdkgame_app5/.global.com.sdkgame_app5

Filesize
48B

MD5
046a414913add6f5bb60072c7db819b6

SHA1
451ee4f6809260aec622d772fd329c7d0297a842

SHA256
b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

SHA512
4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

Download Submit
/data/data/com.sdkgame_app5/app_seek/fPM.json

Filesize
997B

MD5
10d98a3cf48739085320b8bf24b14686

SHA1
6e97deeabb6c8e565dc159372e7c78adfa5230b9

SHA256
4d2a6cf2ce8dbbeca2716ca650c47ae7c76267e9bc1fb998433f339e3a636338

SHA512
ed4000a85908e2fe4a6faad568aa5359b90370d83826a651d947134c040fdaf09e24eaec7a31cbfebce23c7e7963d5a835a65bf20a0a1daf5c77f8df35d4ff51

Download Submit
/data/data/com.sdkgame_app5/app_seek/fPM.json

Filesize
997B

MD5
a88f492f3daa15f9e17968d457def5e7

SHA1
51f7fb7b1d81fab08db4df83527ebc2fddc34ac9

SHA256
8440a10c4a9d83b74e9671a381e3b2387a5c92a1203cac663bbb6566d51eeff2

SHA512
b039d71d0a3c350eb6f5e48f415e8fdc51a2ce6354cf4b167e5b36086c027c7754820599b5954877e05dba6b89b831ae5ad99a1435b9edaa3aaffc89aab2b370

Download Submit
/data/data/com.sdkgame_app5/files/.y

Filesize
307KB

MD5
4e73947cabb5db3f92ca85004981b754

SHA1
6d9667fdb0280ed2dcb782b4683e422a51bdc601

SHA256
6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

SHA512
be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

Download Submit
/data/user/0/com.sdkgame_app5/app_seek/fPM.json

Filesize
1KB

MD5
a175c4829dafd130192b7683d21fb00a

SHA1
9a4c43084d69e6781e37387a7f9aae7f055aadf3

SHA256
211b7c69d77e37211890285195d190d3a247381a640520f17e0d6f325687dcc5

SHA512
989f7b1694caaa844051dd9e7b0c355c1ee9b4b778fd82321c3f9cc00177d06bd4ad0d8446187158f4bba6cd220474c38c9d72dd2b94f43d0615673e0615ffa5

Download Submit
/data/user/0/com.sdkgame_app5/app_seek/fPM.json

Filesize
1KB

MD5
b7d0a8e67661b250c8bef5049f624ced

SHA1
fe842bc17b8fca08f2624ecd6e2cde03d9c681e0

SHA256
0def79c63ad86eb89e1477af4a2fefa6f567ed34229d2221877680a4d68ca7b3

SHA512
f1a4c33f1672d5f9c05ba8d4b2be8f11939c67899c21905483a78ef4778dd6cb0a952ac8f54418dc73a41270751b8680b5541b76efcce2c78344e2a2d08d275c

Download Submit
Anonymous-DexFile@0xc6d7c000-0xc6dff5cc

Filesize
525KB

MD5
5c039c7578adcb90554cfdc27aa1fbe7

SHA1
f59e979c2f00b1a20aa5c1e20244ea1dc423c486

SHA256
3c98f2d8a1eae25a92e868de4436250705ce46044c227b552ac52bb9f93ae11c

SHA512
20a448207d2430f9d5517588956ddf7816f989af757897de5025bc0bc380053939ca08971190beccfba1c2d44dfac2c667f8509f136971259d7356c2f82083da

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads