octo | 9723d225ad048caf2fa4f83ff7cd8feab9221befe09c9759b7e393ee38e04b1f

Analysis

max time kernel
149s
max time network
157s
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
21-12-2024 22:02

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General

Target

9723d225ad048caf2fa4f83ff7cd8feab9221befe09c9759b7e393ee38e04b1f.apk
Size

3.2MB
MD5

d14cc83768293dcc3743b14b16fd8693
SHA1

81b0e7a46e6139c6b06b2a3267cd5a59c8788cf2
SHA256

9723d225ad048caf2fa4f83ff7cd8feab9221befe09c9759b7e393ee38e04b1f
SHA512

d85850f5dd4da19acb3a10e0a95f0d8ab0b933642b84820319c348ddfc13c6c78a6be61c68b6d648261b5972f966731cab5f9510642223ecf81a699439708d2a
SSDEEP

98304:8hvaFW9Agk+r98RwP7sji8pFkCstMAxn83g7yPn:WCFWq+rGwP7sjrktMAxn833

Score

10^/10

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

Malware Config

Extracted

Family

octo

https://185.196.9.197/MTQ4MmUxODBhMTVi/

https://xxxpakunatationclass.net/MTQ4MmUxODBhMTVi/

https://xxxpakunatationclass2.net/MTQ4MmUxODBhMTVi/

https://xxxpakunatationclass3.net/MTQ4MmUxODBhMTVi/

https://xxxpakunatationclass4.net/MTQ4MmUxODBhMTVi/

https://xxxpakunatationclass5.net/MTQ4MmUxODBhMTVi/

https://xxxpakunatationclass6.net/MTQ4MmUxODBhMTVi/

rc4.plain

Extracted

Family

octo

https://185.196.9.197/MTQ4MmUxODBhMTVi/

https://xxxpakunatationclass.net/MTQ4MmUxODBhMTVi/

https://xxxpakunatationclass2.net/MTQ4MmUxODBhMTVi/

https://xxxpakunatationclass3.net/MTQ4MmUxODBhMTVi/

https://xxxpakunatationclass4.net/MTQ4MmUxODBhMTVi/

https://xxxpakunatationclass5.net/MTQ4MmUxODBhMTVi/

https://xxxpakunatationclass6.net/MTQ4MmUxODBhMTVi/

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/files/fstream-5.dat	family_octo

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

stealth trojan evasion

Suppress Application Icon

T1628.001

pid	Process
4220	com.wantbook61

Loads dropped Dex/Jar 1 TTPs 5 IoCs

Runs executable file dropped to the device during analysis.

evasion

Download New Code at Runtime

T1407

ioc	pid	Process
/data/user/0/com.wantbook61/app_ded/FZHmnAyA3FhzzktKlfk7NzRQ5nnWtFac.dex	4220	com.wantbook61
/data/user/0/com.wantbook61/app_ded/FZHmnAyA3FhzzktKlfk7NzRQ5nnWtFac.dex	4245	/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.wantbook61/app_ded/FZHmnAyA3FhzzktKlfk7NzRQ5nnWtFac.dex --output-vdex-fd=44 --oat-fd=45 --oat-location=/data/user/0/com.wantbook61/app_ded/oat/x86/FZHmnAyA3FhzzktKlfk7NzRQ5nnWtFac.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.wantbook61/app_ded/FZHmnAyA3FhzzktKlfk7NzRQ5nnWtFac.dex	4220	com.wantbook61
/data/user/0/com.wantbook61/cache/dbchtznxtpd	4220	com.wantbook61
/data/user/0/com.wantbook61/cache/dbchtznxtpd	4220	com.wantbook61

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.wantbook61
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.wantbook61

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.wantbook61

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.wantbook61

Performs UI accessibility actions on behalf of the user 1 TTPs 2 IoCs

Application may abuse the accessibility service to prevent their removal.

evasion

Prevent Application Removal

T1629.001

ioc	Process
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.wantbook61
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.wantbook61

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.wantbook61

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 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.wantbook61

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.wantbook61

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.wantbook61

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.wantbook61

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.wantbook61

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.wantbook61

com.wantbook61
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).
- 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:4220
- /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.wantbook61/app_ded/FZHmnAyA3FhzzktKlfk7NzRQ5nnWtFac.dex --output-vdex-fd=44 --oat-fd=45 --oat-location=/data/user/0/com.wantbook61/app_ded/oat/x86/FZHmnAyA3FhzzktKlfk7NzRQ5nnWtFac.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4245
- rm -r/data/user/0/com.wantbook61/app_ded/oat/x86/FZHmnAyA3FhzzktKlfk7NzRQ5nnWtFac.odex
  2⤵
  PID:4270
- rm -r/data/user/0/com.wantbook61/app_ded/oat/x86/FZHmnAyA3FhzzktKlfk7NzRQ5nnWtFac.vdex
  2⤵
  PID:4286
- rm -r/data/user/0/com.wantbook61/app_ded/FZHmnAyA3FhzzktKlfk7NzRQ5nnWtFac.dex
  2⤵
  PID:4304

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

Suppress Application Icon

T1628.001

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

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

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.wantbook61/app_ded/FZHmnAyA3FhzzktKlfk7NzRQ5nnWtFac.dex

Filesize
3KB

MD5
1dd01c5264c4740bfc756416d24696e4

SHA1
231aa64e4e0481fe1fac940eea9366cc12e42ebc

SHA256
1a49419a05e1f0464873561a796304573554462a28ae0fcc354f793f339de7c1

SHA512
cfcca3f3732313a0798788c7313c0f567a7159c4275be1c351830a4d454c96578eb18328184d3c1f34b7ab8e2beea272a41ded07cee6b366fe7e3b4ffa86e0ff

Download Submit
/data/data/com.wantbook61/cache/dbchtznxtpd

Filesize
449KB

MD5
f2a57d8c209b0cb07c0ba26352b1ac66

SHA1
8e6116e542e7a408329c326661a0cec271ecabbf

SHA256
c9f3344e3181a8b4825a800a78b0e5f7761a9da3dafa34659b2bb021ac108257

SHA512
314a3684aedebf49f0771b4a04c94efbfea1d2067db96aacb53bc4617c215429fd5acd10d9a7e0cf776b426bb9421f1c9a5def20cdd2746a41de83ce13be06b4

Download Submit
/data/data/com.wantbook61/cache/oat/dbchtznxtpd.cur.prof

Filesize
474B

MD5
55af4d80fb221d6be1d80d2286e96bf1

SHA1
12c8fdb597cab0340cde4e12ccb3ae41cebd304c

SHA256
4695cd78e4a07d034c084b142dc9785f6574933b73754c4e43a40baaad643ca1

SHA512
07ac259a38db91fb553aca5eea0a9ba0092180be0fef79106e0cc07c06901fee808ece1829996a3e4acd0fea4777f022d22dcf8e76d98e18d0779a93f201dab3

Download Submit
/data/data/com.wantbook61/kl.txt

Filesize
230B

MD5
c74bf695748f7175f7a89d15d3a941b8

SHA1
1d525937ce9fb0697b1157868775b3766ff0fbcb

SHA256
b4bf64f02c82f600acd02558d46937cc2a05c24c80a2e419181e617507499619

SHA512
6c2d553c4522573d33710745b1de61bc4bd24da59b4d6bd97db361a3c4025d6481e2eba9fc636cfc4230b2d1f354439265cf615da7e0dffbdb46aeb9734dd206

Download Submit
/data/data/com.wantbook61/kl.txt

Filesize
54B

MD5
ffc39b322a0340f7aa8582a565121a12

SHA1
2e617565dac3400d40d492d717ffb7cafd9abd11

SHA256
5385aa0cdd87cd6ad145df1ddf32644a18c95e8eb3ac979cbb8f3efb0e2e4aeb

SHA512
443040f2f04e11ca6f21d6789cc31e629530aeb66af8cb416a7efc913b5fa6299d441ee428dcd0017c4fec2e2e15a09cbfb0ef15f355ed773624d152bf3c0c98

Download Submit
/data/data/com.wantbook61/kl.txt

Filesize
63B

MD5
465faa20418d4d5d3f0e6437c92c42db

SHA1
21d58c5471edd738e35d0734a48c56d23f0fbaee

SHA256
e75e699106ee3609c2d0659c679e6bf91443657a9a18a2c1a632bbb085093548

SHA512
992cd045094932c071b39dcb6f42c21df910c709fba63249c68d074dba98dd90fb77cee6ad2602d7eeb8a3108a4e8e5ff406626046ea6ff11e205ce20a430a08

Download Submit
/data/data/com.wantbook61/kl.txt

Filesize
423B

MD5
bca3c321a7470c45dc83174d7d9b00dd

SHA1
118fd6da8371f0891e1fe7629e8a9dbfb8559411

SHA256
3adbb0d530703f1dfa0c782b3f9ae454e390c7889281fca8058d99975e2265f8

SHA512
c30d7cd61ee8586399296a0764baabff36a017a82db24db8d38cbba3657eb5909a41c8a461b80bb82db98b4bc0442f6e7d87dc800e901bb090bfb60858252721

Download Submit
/data/data/com.wantbook61/kl.txt

Filesize
28B

MD5
6311c3fd15588bb5c126e6c28ff5fffe

SHA1
ce81d136fce31779f4dd62e20bdaf99c91e2fc57

SHA256
8b82f6032e29a2b5c96031a3630fb6173d12ff0295bc20bb21b877d08f0812d8

SHA512
2975fe2e94b6a8adc9cfc1a865ad113772b54572883a537b02a16dd2d029c0f7d9cca3b154fd849bdfe978e18b396bcf9fa6e67e7c61f92bdc089a29a9c355c6

Download Submit
/data/user/0/com.wantbook61/app_ded/FZHmnAyA3FhzzktKlfk7NzRQ5nnWtFac.dex

Filesize
3KB

MD5
3e6691684593a0b24ae967a8e120c0c0

SHA1
a22b96cbfef13b68f7ed3aa8f4324513e5f88217

SHA256
fbc554a2e3c431e9877b93e9969ad11b11f1ab997e02f4b05f5d6f872906e65b

SHA512
a373a91d351aa10ab9c843f73294e7c0f53508f9e2698d7afee700bb36e50d93b9d42136c6e388c16db3586af664c1115ccfb473f30594342fd94d35fc2335ae

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads