octo | 69004f172da0121ae1313812e97dfc67ecc2f3c6b75231ff52565b534fb8bd7b

Analysis

max time kernel
149s
max time network
143s
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
16/11/2024, 22:00

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General

Target

69004f172da0121ae1313812e97dfc67ecc2f3c6b75231ff52565b534fb8bd7b.apk
Size

605KB
MD5

6a5b6a3038012f9953b13a708f8b7265
SHA1

4429f716eed529788601c14552aa48a7ca634a2c
SHA256

69004f172da0121ae1313812e97dfc67ecc2f3c6b75231ff52565b534fb8bd7b
SHA512

e8ef81e3d48fe123ab99b6a1e623b311ea5871e8115b84530f346e58f70978c561c3c7b0f0648f155b1d3504ad5c72bd18913eb3c6d08fb4bdacf1b9b25e07ab
SSDEEP

12288:wv2Hpn70EYGXC95tSmRYcdREahbmraMVfVjURfVsyXVy4IqnvRms4hDLrMhdCi:NHFlZyFSmicdea4uMVfVoRfSyfIqnvRv

Score

10^/10

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

Malware Config

Extracted

Family

octo

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 2 IoCs

resource	yara_rule
behavioral1/files/fstream-3.dat	family_octo
behavioral1/memory/4370-1.dex	family_octo

Removes its main activity from the application launcher 1 TTPs 1 IoCs

stealth trojan evasion

Suppress Application Icon

T1628.001

pid	Process
4370	com.marklargel

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.marklargel/code_cache/secondary-dexes/1731794427902_classes.dex	4370	com.marklargel
/data/user/0/com.marklargel/code_cache/secondary-dexes/1731794427902_classes.dex	4396	/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.marklargel/code_cache/secondary-dexes/1731794427902_classes.dex --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.marklargel/code_cache/secondary-dexes/oat/x86/1731794427902_classes.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.marklargel/code_cache/secondary-dexes/1731794427902_classes.dex	4370	com.marklargel

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

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.marklargel

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.marklargel

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.marklargel
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.marklargel
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.marklargel
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.marklargel

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.marklargel

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.marklargel

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.marklargel

Requests modifying system settings. 1 IoCs

evasion

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

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.marklargel

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.marklargel

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.marklargel

com.marklargel
1⤵
- Removes its main activity from the application launcher
- 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.
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Schedules tasks to execute at a specified time
- Uses Crypto APIs (Might try to encrypt user data)
PID:4370
- /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.marklargel/code_cache/secondary-dexes/1731794427902_classes.dex --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.marklargel/code_cache/secondary-dexes/oat/x86/1731794427902_classes.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4396

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Scheduled Task/Job

T1603

Persistence

Event Triggered Execution

T1624

Broadcast Receivers

T1624.001

Foreground Persistence

T1541

Scheduled Task/Job

T1603

Privilege Escalation

Defense Evasion

Download New Code at Runtime

T1407

Foreground Persistence

T1541

Hide Artifacts

T1628

Suppress Application Icon

T1628.001

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.marklargel/cache/classes.dex

Filesize
447KB

MD5
fb7a7e53367ceee6bac148fc05f7fb92

SHA1
3c1659aaff3eba6cf751bc654737856f2618d3d6

SHA256
4c6dcc8089fe262438b61e0b7debad4b6506689485489f74dfedcb8992972d0a

SHA512
0b4a0c169f87a71860c8c41840e2eac3acca7ef82c8e15ac7705be82d4b873600aa0b3ea73f4ed27283f1896acfdaf7ec190de623349e38ddb64f856c58d21f3

Download Submit
/data/data/com.marklargel/code_cache/secondary-dexes/1731794427902_classes.dex

Filesize
1.1MB

MD5
9aa8d5d67565669133c579ae21386638

SHA1
4e15670cabd3a4420f1251ee6b59c28685da284b

SHA256
d52cab89c8f4269e0fe2f4050b42b0842984f402bd766613b34b8f83d0c7d62a

SHA512
a12281391f2e69e1aab5c1a28007499b09bc53a2e4dba8537d243ea8720643e85d882a3703b53479eb020ad621bb1fffde983fbb1eb5ac7f0948cb51c4bbe202

Download Submit
/data/data/com.marklargel/files/profileInstalled

Filesize
24B

MD5
d4639a1e0fb62363550a9963389b9646

SHA1
b342c14f2f614cf97db1f0b8d6970f7399c5ab13

SHA256
4d6aadb605acd66adcc44467bb66b66da0d0758ea037d6c91abf3313d7240886

SHA512
43a8c81702c93e3e99ed73749080ef9439f3b55b7e42dd170b8a1eafde6c1b99f79a6c5f8391b2a645f3dede14fc94a0eded1c214f71aa1085a15982cec5e89c

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

Filesize
8B

MD5
1a1d89d43384294868157a348d8458a7

SHA1
06757727b849e050b6f5f22a17327eb995273c02

SHA256
afcf146782680c5b73ce399142347621e5d80216b4dcfa629123c3389bbfeb34

SHA512
b447bb1f8bdebd2366e971d112c142ee230a1a9697ba48f136367c3cd67d4de931ba125c588557775098ff2fc368fb553f2e762bdd049ea324996925eccae64f

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

Filesize
4KB

MD5
f2b4b0190b9f384ca885f0c8c9b14700

SHA1
934ff2646757b5b6e7f20f6a0aa76c7f995d9361

SHA256
0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

SHA512
ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

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

Filesize
512B

MD5
68ec9c54bba090bc4023730f785fdd79

SHA1
e50643195accc78800298638848d35a35ad57596

SHA256
5b303423880e49cecb0960a39c51f99655cf676f15f9b69c9a36d51100f24682

SHA512
d2b4aee280491b4a59d6188ac24302b737ea4a78ff7e75c70cc9f96e9091a8ed196a30cd6c615da9091eefa35d6a3b0bd118f4784f59ecc161aac981e9543f1f

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

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

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

Filesize
16KB

MD5
db0b5a5cf60730962b294cbcf73af736

SHA1
4bf4e8e59194c091934f6ef7c83f5219773dfc7a

SHA256
2314b0441270e3d609ce3d0b9f656792ca30a8d965282d913302725c2bbcbccd

SHA512
c44f17f4ff12550f301683f988655d2b45aa9d8159726fe9898f57e52e4a91993c6dc5ca1bb3154c603cdd9f630fde18507b3dd0bc176c18c7ceda7e2f8e86ef

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

Filesize
116KB

MD5
874878cef156a244851862366554c2d8

SHA1
f14197208a047f775866a98e15a277a1c7923090

SHA256
165aef591c14711a3cbe1e5a69b6a879888a17b6e157a83f897eee42f2301763

SHA512
6653e80ed4705556ee1d2143efaf491b3d5b157afe4a28e6011d9d7b513ce03db4eab2d7b81a72a91280423b55eaca086580ad0a92e45c816f43ce1cc633f780

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

Filesize
177KB

MD5
a2e0f05ec66dc678499093e1e2e62dcf

SHA1
e5c2379ea03de95421d88ec74c85b10de72c1752

SHA256
1a5a1879f8669c5c179cba8db25a6cd8df0f954ab1e9640b8b8da06e1b2b6547

SHA512
20f199a759893c3ff739977eba9742307caf210e9565314a0aadc5a617ec87faa758fefb47dbca8b20660b45002f9f25106d0659f4ae07e20947a68f87194d9d

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

Filesize
112B

MD5
56c8e82adad0d7ce546d7b1ef2d8f07b

SHA1
78dbc8d0a2e54aa79052a00541f2ce8bcd33640a

SHA256
99685baaffdb6dbe0954b71f34c4f7cc306acb30aa19e40535a390b0e74f27a8

SHA512
8e32239ecf25098997805eeb37b28fafcc928e4944b191c830b03d7109e3ba2a3271697a5905de37d9979d0199ba808900cd361530d0edbbd47c85377ace0bfd

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

Filesize
121B

MD5
cb1f955c231ea312b3dc23dde989fb76

SHA1
3f554f1032ad2d51d920596659f39194d3d625e5

SHA256
497d20cfd873283166ddf36383f9f78935e572a6eb379c339f2c78182ab949fe

SHA512
513149517b3c35a1ec227d11d2c91069c4dec938966a15a6f2d69da6e962f947526387069f0b1ec2813a5722fae92e53a039b7f9f8588739477917aed56061e3

Download Submit
/data/user/0/com.marklargel/code_cache/secondary-dexes/1731794427902_classes.dex

Filesize
1.1MB

MD5
ed9cef12c90009aaf07873db45f84b04

SHA1
1f1423a36867409e38cd445238036f9abad8afa6

SHA256
695d98f65052efab9484dd0bcc84bcbef71714771797cc52b006240a503ebd7d

SHA512
e5ff75d929e512d98232f6c2bb723cf409171eb34797a344110e747be9ce2081c0498fadc8ff845d3d62a6d8c317eb4f8d33a036edc3a866bdd1e13c25d015bf

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads