octo | 90d134fe452c1fa52076c9d9e23d115f08c279bc8c8ec32a192117578e71f79e

Analysis

max time kernel
142s
max time network
154s
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
15-11-2024 22:00

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General

Target

90d134fe452c1fa52076c9d9e23d115f08c279bc8c8ec32a192117578e71f79e.apk
Size

605KB
MD5

98d0d38d446ae7f4dfe59917d04b65f6
SHA1

ec1d8eeb42f26ab03216334c615de74447b8ea45
SHA256

90d134fe452c1fa52076c9d9e23d115f08c279bc8c8ec32a192117578e71f79e
SHA512

6e987bfdc119c5bd43b85d656918798a9dc61bd960f0641cdc6568b5eeb6165359a9b7fe5a343c7802fbd428ca7b84e9089e0dbc7a0c49caf1a26475a3b53c0b
SSDEEP

12288:OP0xl6DH6gM8semYIWU2pLjr2IBDfTgSSxf+QXeLmts4hDLrMhdIm3VKZ:OaoeB2IWxLjHBDTgS4+CAmtsIzgdIm3I

Score

10^/10

octo banker collection credential_access discovery evasion execution impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

https://7bb13903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://34b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://64b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://74b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://894b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://94b64139030754567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://94b64139033074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://94b641553903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

DES_key

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
behavioral3/files/fstream-3.dat	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.completeremember8/code_cache/secondary-dexes/1731708029028_classes.dex	4578	com.completeremember8
/data/user/0/com.completeremember8/code_cache/secondary-dexes/1731708029028_classes.dex	4578	com.completeremember8

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.completeremember8
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.completeremember8

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.completeremember8

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.completeremember8

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.completeremember8
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.completeremember8
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.completeremember8
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.completeremember8

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.completeremember8

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.completeremember8

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.completeremember8

Requests modifying system settings. 1 IoCs

evasion

description	ioc	Process
Intent action	android.settings.action.MANAGE_WRITE_SETTINGS	com.completeremember8

Schedules tasks to execute at a specified time 1 TTPs 1 IoCs

Application may abuse the framework's APIs to perform task scheduling for initial or recurring execution of malicious code.

execution persistence

Scheduled Task/Job

T1603

description	ioc	Process
Framework service call	android.app.job.IJobScheduler.schedule	com.completeremember8

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.completeremember8

com.completeremember8
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
- 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).
- Requests modifying system settings.
- Schedules tasks to execute at a specified time
- Uses Crypto APIs (Might try to encrypt user data)
PID:4578

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Scheduled Task/Job

T1603

Persistence

Foreground Persistence

T1541

Scheduled Task/Job

T1603

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

Credential Access

Access Notifications

T1517

Input Capture

T1417

GUI Input Capture

T1417.002

Keylogging

T1417.001

Discovery

Software Discovery

T1418

Security Software Discovery

T1418.001

System Network Configuration Discovery

T1422

Lateral Movement

Collection

Access Notifications

T1517

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

Replay Monitor

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Downloads

/data/data/com.completeremember8/cache/classes.dex

Filesize
447KB

MD5
55a9581a83232f85c541fef828d52e31

SHA1
1d330262fe57e17c36ee15b5ef163db8a49a99e2

SHA256
837428bf0546218256a320d7f751e9ac5695e3b3fc4c8d99d51a863ea28651df

SHA512
d0131daf6c68b3be38b7aacd8401864584d546b72e7bd0bf327ed8984abaaa531cc0c78e4c1c6996d8a64943ef93a0ab5929a0b421939835af6d3fd38c7b7488

Download Submit
/data/data/com.completeremember8/code_cache/secondary-dexes/1731708029028_classes.dex

Filesize
1.1MB

MD5
ffa252f7a4b4c98e5bc5e7e3575bfe64

SHA1
b37a7297d75b296af758756f2afbc6bc15c96b39

SHA256
c6152ff2121c749c50885129137c922470094c42d9d353eadf5ab8d1df574574

SHA512
de50eaafb76e1900f2a31178037174f804113f80cf3dc01960b072d8543caa806d3d8786eb41ebf1812ee363a748eece03759539cbf6454b78f803c34f8e638f

Download Submit
/data/data/com.completeremember8/files/profileinstaller_profileWrittenFor_lastUpdateTime.dat

Filesize
8B

MD5
3d4830708774e02fa4fa154025c88ab9

SHA1
35ebb1345eeeec99751c161dc00d851871fa2ae4

SHA256
3ae9ba9cc11c1e96f0cb0d106899866f4e565cbf81a083b46c1568a7debc6124

SHA512
baba5dc57f39b8fb9459256c7853dadb72259f53affd9f4ad2564f594a0f7d5f68e3f178eb2f5c9971b5af2ba968c1fc8acb37b2335307f9d845a93e69eb52ad

Download Submit
/data/data/com.completeremember8/no_backup/androidx.work.workdb

Filesize
4KB

MD5
7e858c4054eb00fcddc653a04e5cd1c6

SHA1
2e056bf31a8d78df136f02a62afeeca77f4faccf

SHA256
9010186c5c083155a45673017d1e31c2a178e63cc15a57bbffde4d1956a23dad

SHA512
d0c7a120940c8e637d5566ef179d01eff88a2c2650afda69ad2a46aad76533eaace192028bba3d60407b4e34a950e7560f95d9f9b8eebe361ef62897d88b30cb

Download Submit
/data/data/com.completeremember8/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
bf1dc65bc41f8e9bae6dc961826fce25

SHA1
d580abda3cfd07f57c8fc828b61cf5c7a24959da

SHA256
0e5bf3d7c6c8782c6f8b1a313189af85613d7104e8918d7945ab3092ce120a3e

SHA512
fe01f30e5bef349b04875e39f09485e3a5aa68c020a0c5d2b0eb7a98f6665994ee57d44f429b67525ea085f326f6811fb53b740096b760dd58eb9862159ed418

Download Submit
/data/data/com.completeremember8/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/data/com.completeremember8/no_backup/androidx.work.workdb-wal

Filesize
169KB

MD5
0d5551d9ee982372c5428c644820f6be

SHA1
9e2ac07f20082e8cb902d1924f79fc9e19d5d440

SHA256
173044e9a8a427574e14979e036aa5fc50249dc2c9c71b9dee179a9f6cb18ceb

SHA512
307e820fd30112339f6c1cc7f9887d3374599d3b302eb77d19d4cd2967c9af0adaf94c8c155fdacd32b5f6506612c1afc2b95141a7ab05fb15cad769052a0ce5

Download Submit
/data/data/com.completeremember8/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
b3602b6e261fbbd7c35bf779fa08bb2d

SHA1
400aded788af8918b459341502aa2235bbcdc8b5

SHA256
b638c2ebf6ccbc6331dd47d48eac0332c3b2094bb6dc18694895c98e3f4b82b8

SHA512
4e002625f8e9d540991afcd3b9bff0d1edbb55a30f28b1c0be4e5faa4e418f3ed68164cd24bfb6bf081addf108e3ec7b05d7f75f91e236a2bed6bc578a038a17

Download Submit
/data/data/com.completeremember8/no_backup/androidx.work.workdb-wal

Filesize
116KB

MD5
e1d4d0388f6545ae4a45ebd9c938f4b6

SHA1
95eed43443e9cec31935f998b99b6e185897ae97

SHA256
d97801ade53f5b77667d7487c15d52bd95c24452264b74709eed4336406734b0

SHA512
7412a7032490abaa7ab29e896d22be1b9323ba6b5982abd21ee6f946458643f708da661b4a6396cd9bdfd18cc64f5187735dbb512f09d1d750999df93dc454dd

Download Submit
/data/misc/profiles/cur/0/com.completeremember8/primary.prof

Filesize
112B

MD5
15af1cdcfaedb837b19131fdd2a1d2cf

SHA1
cff26d94e13e265c921c6fd53a0453b4a1b6fa33

SHA256
78588d2f38d110e0ded2a212ce0694301965b7b9c4981e9e373e2415c69a777b

SHA512
462f65a932e0052f369311c997a9957d3350bf8784486cd4365381e15fa9550b7af5ee12ec5e5ad6dca27abe621d01c4ed4beaba62dabc16ebf332dfb990cbcf

Download Submit
/data/misc/profiles/cur/0/com.completeremember8/primary.prof

Filesize
25B

MD5
b9d9e0f8902d129e1aeebff0ae7b725b

SHA1
cb0d2b4c9dd60a5c1fc6261fb581bcd3416fe781

SHA256
25a822139d06016af8be1296c0242b60e35074f94c713e03323636be1162ce91

SHA512
f158a9dc753e0cb41f71a98714ff02198c576bacdd792a6153fdaf6f9a7b52d8cfb6d09099a269d0c1b0d31e2ea5a307ea1db85115bdc6797887a6de36d597f6

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads