octo | 1c2e5bcf2a4cab7eab12c0e617f4b931a3181f3234fc1c5b0779e93cdaf5be81

Analysis

max time kernel
149s
max time network
147s
platform
android_x64
resource
android-x64-arm64-20240624-en
resource tags

androidarch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20240624-enlocale:en-usos:android-11-x64system
submitted
24-11-2024 22:04

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

1c2e5bcf2a4cab7eab12c0e617f4b931a3181f3234fc1c5b0779e93cdaf5be81.apk
Size

2.3MB
MD5

6df8ee45bd50ffff91bd0a7f824a1d6c
SHA1

0939e4c54bc528e2c62043e476d8ca5bc3bae992
SHA256

1c2e5bcf2a4cab7eab12c0e617f4b931a3181f3234fc1c5b0779e93cdaf5be81
SHA512

f7e35860d0ec3c4015d4242f1bf796a0f30869a5aed7ba9313bf35afbc67b09a4ccb369925209d523df2c042a3a9f138c4bbe0a661208da195327ba670800eff
SSDEEP

49152:H0VQ2V745t15yGpDjB0jw42LZbA7eQsk4gv62lEe3M3CyYntVmXF+r1WQRDC7Y0t:HGQ2V74/15yWejw42pjCNllyYnOV+ZWR

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

https://discount44today.online/NTQ2ZDEzM2FjMjY2/

https://easyforpro901002.pro/NTQ2ZDEzM2FjMjY2/

https://mobile0team0stat.shop/NTQ2ZDEzM2FjMjY2/

rc4.plain

Extracted

Family

octo

https://discount44today.online/NTQ2ZDEzM2FjMjY2/

https://easyforpro901002.pro/NTQ2ZDEzM2FjMjY2/

https://mobile0team0stat.shop/NTQ2ZDEzM2FjMjY2/

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/files/fstream-3.dat	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.worksize23/app_DynamicOptDex/wETXur.json	4525	com.worksize23
/data/user/0/com.worksize23/cache/gvtpkqkhfhler	4525	com.worksize23
/data/user/0/com.worksize23/cache/gvtpkqkhfhler	4525	com.worksize23

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.worksize23
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.worksize23

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.worksize23

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.worksize23

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.worksize23

Performs UI accessibility actions on behalf of the user 1 TTPs 4 IoCs

Application may abuse the accessibility service to prevent their removal.

evasion

Prevent Application Removal

T1629.001

ioc	Process
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.worksize23
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.worksize23
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.worksize23
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.worksize23

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.worksize23

Reads information about phone network operator. 1 TTPs
discovery

System Network Configuration Discovery
T1422

Requests accessing notifications (often used to intercept notifications before users become aware). 1 TTPs 1 IoCs

collection credential_access

Access Notifications

T1517

description	ioc	Process
Intent action	android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS	com.worksize23

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.worksize23

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.worksize23

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.worksize23

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.worksize23

com.worksize23
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
- Performs UI accessibility actions on behalf of the user
- Queries the mobile country code (MCC)
- Requests accessing notifications (often used to intercept notifications before users become aware).
- 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:4525

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

Impair Defenses

T1629

Prevent Application Removal

T1629.001

Input Injection

T1516

Virtualization/Sandbox Evasion

T1633

System Checks

T1633.001

Credential Access

Access Notifications

T1517

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

Access Notifications

T1517

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

Replay Monitor

Loading Replay Monitor...

Downloads

/data/user/0/com.worksize23/app_DynamicOptDex/wETXur.json

Filesize
2KB

MD5
bbf07383f55389639a43619851124af9

SHA1
17b329ca4cbac503bd33d8c15a9445f0d4d9d2c9

SHA256
82697114f7ce230fae21e24240f18326fd2005001a0ce15c12d01f3208ef7c48

SHA512
2f6bdca0fd6fbe2ab30448febda132976831172c04038141335267a504804c04240d29bcc31fb82cac811eaf14b741e385c43761c6009a9abe485ceb811071dc

Download Submit
/data/user/0/com.worksize23/app_DynamicOptDex/wETXur.json

Filesize
2KB

MD5
0bcc94f4cbed8f4bd62a3494bc15735f

SHA1
919c235047a90f1b38a097b2d6deb08017658f9c

SHA256
629ed1479864e8a84a97679b62337bd788ef04139cb9bc00eaa1fae06e8fdc1f

SHA512
847699ec02c3bda86f68b44f12bf38be7f2f202e8c25217ca8faea0fe1e3db4ca670437701758bdaf73426b5667fd3d7b3b51666fa3620246fc0fd1ab927960b

Download Submit
/data/user/0/com.worksize23/app_DynamicOptDex/wETXur.json

Filesize
5KB

MD5
b5b385e4667a10458e4f24be45eda168

SHA1
46eb83cf6d947f3289d525a411235c4097549606

SHA256
ac0790fb7b4f5d49abedda3c9f0049dfd5f4b7323797438d82650cff1d06190e

SHA512
8e6d84c4e03111e64c32585fb862f5d32bf1c454bc8d057fb3219596474ef5fe702c088a3b2ec412972c1f1b8da0963d26769024206f7f3ccd571af225285aaf

Download Submit
/data/user/0/com.worksize23/cache/gvtpkqkhfhler

Filesize
166KB

MD5
881cd7029f4e9a694076957fbea6a6cb

SHA1
c1eed803c1b5de82e84ae7675ba55feb0d198336

SHA256
512206ac8f52c72d1567462d6e612bcfd3f368f8c637c3843c90d27b95abb7fc

SHA512
c8b67e0d26df32d9a132d3f90978fe5c3fc47145ad42ea67495f50a354ba563fc72004423d4573d0c9a40e930180df54800dcb1be492b998687c41dffbee8633

Download Submit
/data/user/0/com.worksize23/cache/oat/gvtpkqkhfhler.cur.prof

Filesize
346B

MD5
62d231574ce510552d7bd26c7800e553

SHA1
610132b283a4c98232c57cb91856fca566949211

SHA256
c60302a5139c85a742e53977517a88ae99b0cbe9d13737e67ea17668cd6c4ebf

SHA512
0ca7404bf59fdfe26382427341513e581d60279ff6080dfbf0dc9c0c782f2fc1e6520787e8933fb3071155a343f8bfff9f822fc23375a3b1c9c420fb51854a70

Download Submit
/data/user/0/com.worksize23/kl.txt

Filesize
79B

MD5
31e88ea47fce8c049aa2b5939ab880ff

SHA1
4a6d3d3f43a87f9f28792807e0b01bc5bb4db488

SHA256
146001e5bd0a50f0b4d0b7b25b629273e20d4ae420d062bc57107322da2c693a

SHA512
0b4d309e780b76630c4ec6fb83e015ed799b71b5a964f12064026aeae01dbd2d38dd60b17a0d6a33b193d150b176db16b290e0d15f84a83077f82edff465ff17

Download Submit
/data/user/0/com.worksize23/kl.txt

Filesize
28B

MD5
6311c3fd15588bb5c126e6c28ff5fffe

SHA1
ce81d136fce31779f4dd62e20bdaf99c91e2fc57

SHA256
8b82f6032e29a2b5c96031a3630fb6173d12ff0295bc20bb21b877d08f0812d8

SHA512
2975fe2e94b6a8adc9cfc1a865ad113772b54572883a537b02a16dd2d029c0f7d9cca3b154fd849bdfe978e18b396bcf9fa6e67e7c61f92bdc089a29a9c355c6

Download Submit
/data/user/0/com.worksize23/kl.txt

Filesize
237B

MD5
bdc203b9c1b1b1d0f724a47705ff9a56

SHA1
d9cb1435d421d130c23a3ab3565d93690a6c95e3

SHA256
8f9e8e825d6a388f843e0813b6c373d2ed1d79cb233ee70b5906726331100d0e

SHA512
36d151c8095de4525f3054233fd887fab3369c2c318f0aee4e522974724c11662cd2c5e253758430c38dd74d84ff693f227a32373026352b0a926c6da4e0b5c6

Download Submit
/data/user/0/com.worksize23/kl.txt

Filesize
45B

MD5
14dba80f0eabf3588a2b67cd574f9667

SHA1
25f0810ccde29a8cb74193f19db64bb5c389aa10

SHA256
d94048e5ba73a00c795f8aaaedf9d30e3f314a194b942a727946515b2bc1cfa5

SHA512
66ee5a3f3ef3108efcf236daf84c79d406ddd68d95ace9f4cf68826de97aa444676d62165376edec3f8c4012b9a804419c9280757e4d5a894147f83f0a0d1ec6

Download Submit
/data/user/0/com.worksize23/kl.txt

Filesize
63B

MD5
7624616e27164d094be0d45b7bfd6260

SHA1
79e6802bd4f31bfe3f296091f00b68a49257f4f4

SHA256
87539b88776d419c649bb5a7feb3116d9c5567818fa7d29a9e50f5c0bfa1c83a

SHA512
4b5c30e6c6ed4e0945204aa2e01e93927de331e03fc7f09f0386f3011c3cf35d3be379c1e8dad570c5ac2d7b0e9b0e9082eb69e3cb525e9366db7b015d40c37d

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

Loading Replay Monitor...

Downloads