octo | e1a8c3172eba5297a3ce71cba1fe116ed87630be83051907ad3d4637054185de

Analysis

max time kernel
17s
max time network
28s
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 22:15

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General

Target

e1a8c3172eba5297a3ce71cba1fe116ed87630be83051907ad3d4637054185de.apk
Size

8.7MB
MD5

9f15525737255428d920996485b8ca29
SHA1

b46f09c4ad89221b54d7f43ce46e8ce31a3fec89
SHA256

e1a8c3172eba5297a3ce71cba1fe116ed87630be83051907ad3d4637054185de
SHA512

c250818570d91fe04f95f3d5dfab8b0e6f6da86518fc22550aea10e2e1af0ef58cdab030471aa25d8cffce6f4a8f32be1eee9acb8f20965ffc5d3d27e987d806
SSDEEP

98304:lSWmZVKmnWjj7b5iSRGggRsu/UCrFAUF30SNGmTbsfvr7NajTuTWre2ywa:lrmZUUyj7brORMCrWfvHmwj

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/4303-1.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.wwatch_telephonyj/app_replace/dboNrq.json	4328	/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.wwatch_telephonyj/app_replace/dboNrq.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.wwatch_telephonyj/app_replace/oat/x86/dboNrq.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.wwatch_telephonyj/app_replace/dboNrq.json	4303	com.wwatch_telephonyj
Anonymous-DexFile@0xce578000-0xce5fb7b0	4303	com.wwatch_telephonyj

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

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.wwatch_telephonyj

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.wwatch_telephonyj

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.wwatch_telephonyj

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

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.wwatch_telephonyj

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.wwatch_telephonyj

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.wwatch_telephonyj

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.wwatch_telephonyj

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.wwatch_telephonyj

com.wwatch_telephonyj
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:4303
- /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.wwatch_telephonyj/app_replace/dboNrq.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.wwatch_telephonyj/app_replace/oat/x86/dboNrq.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4328

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.wwatch_telephonyj/.global.com.wwatch_telephonyj

Filesize
48B

MD5
046a414913add6f5bb60072c7db819b6

SHA1
451ee4f6809260aec622d772fd329c7d0297a842

SHA256
b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

SHA512
4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

Download Submit
/data/data/com.wwatch_telephonyj/app_replace/dboNrq.json

Filesize
1014B

MD5
3f229fd4f4c60d24caad44534dd85a82

SHA1
2e2238b40bca8d16ac68e0e7598a8617521428e7

SHA256
b362b87e34cf4f6902688760b41222bfc4300c835f63d73d170fcab815429755

SHA512
de62aec6513017a766406b7a379c5021e670b2623c610d8c75bcf5490d9f221b4e54bcd5fd4e040087de8120a924a6091115c006349af263376767a538ff9799

Download Submit
/data/data/com.wwatch_telephonyj/app_replace/dboNrq.json

Filesize
1014B

MD5
32c2ca3680e43a87e0e60c9492bfd91c

SHA1
a54884a2a0cdf8c9a7ae97a643fc1e6727e1b127

SHA256
06c02b9ff32eab081ef23fa718f7c09e999417bffe55bbedad3ca380e9852d25

SHA512
27388c6e4cc5ccfaa8419610d591d471d439deee50e48a36fb811f792350b1b3048bbe9525cbb54bcfa8647508d215f4fa08970e551cf54534f0ab737b25fdc0

Download Submit
/data/data/com.wwatch_telephonyj/files/.a

Filesize
307KB

MD5
4e73947cabb5db3f92ca85004981b754

SHA1
6d9667fdb0280ed2dcb782b4683e422a51bdc601

SHA256
6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

SHA512
be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

Download Submit
/data/user/0/com.wwatch_telephonyj/app_replace/dboNrq.json

Filesize
1KB

MD5
0250b903ca1c0c380a305f641de9c8d4

SHA1
12b05a4dbff0cbda1441f488058be4cdf5aa13a7

SHA256
459f923b3912553ca75685486fe45a1af306af60a6a00627703d7d2d845612d8

SHA512
a800383282999b6429f9d7384a6d24a7726b5857ebc9aea9916457fe9b7c7c37b018b65ebf476e2c8394dc78b07c8e41fccc3e45e0af9db2ff8962c80cbb6022

Download Submit
/data/user/0/com.wwatch_telephonyj/app_replace/dboNrq.json

Filesize
1KB

MD5
c22c38a24de586d76d62a1ac1e6af201

SHA1
96e2f9ce7b6536b367f9c4065ad1569d0c474f7b

SHA256
27f639a3ecb27cb8355e82d5b737d9c658ade50579c16ac654761702e8ca80e6

SHA512
ce4cee780d42b3437650e76fa665712916f631ce2565eb4747dbc03e3eb1ea17c2d7308da370ef787e27c52428861d67c7c640b9976e9d444a6dae904ccf866b

Download Submit
Anonymous-DexFile@0xce578000-0xce5fb7b0

Filesize
525KB

MD5
e36db21ab45891c9d7a89f6697af080a

SHA1
e380da71c51ccef52c7b764fa7ca60da44f279db

SHA256
8e93e857f4205c24c523962b154bbf5378b6a749a56ee370fc07f43c9e89078c

SHA512
cf989992ea5e8135fa0fd1e7ad14f5652f1c566b800caabff4375484e1534cf461a51adde0b8cfdfc57ab20d23f2eb0ca8ac31c2f0f429f3de880a26651fe477

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads