octo | 34bb8a7d5e72a822ab40ac02ef35abddfb5374476bb67d495b5d78614434eb18

Analysis

max time kernel
149s
max time network
158s
platform
android_x64
resource
android-33-x64-arm64-20240624-en
resource tags

androidarch:arm64arch:x64image:android-33-x64-arm64-20240624-enlocale:en-usos:android-13-x64system
submitted
29-10-2024 22:03

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General

Target

34bb8a7d5e72a822ab40ac02ef35abddfb5374476bb67d495b5d78614434eb18.apk
Size

561KB
MD5

a3537562d28e56a918bc42b4a4f68031
SHA1

cb8a14341e15e061ae5845f05a3110b5557fd387
SHA256

34bb8a7d5e72a822ab40ac02ef35abddfb5374476bb67d495b5d78614434eb18
SHA512

a1c8ea2feb4f8725d814e6c02f79d837f85a525ede58893f58f62c8da7eb724efa8dbf377891382d1c9e2c71fb82d125b19089b9ec4571dba032a76481fc1b4f
SSDEEP

12288:9RachU/0qMAbFuEBfr/HtSuzJZxV/taK8IXooT8nR345+thpgMCVRsK2:9RachU/qAbFNdHzJLV/1x468Ro5+thpX

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

https://3bb139030bc7238b33981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://6bb1390306788b33981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4bb139030b74564533981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4bb1332453233981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4bb13903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4b6432453233981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://43313903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

rc4.plain

Extracted

Family

octo

https://3bb139030bc7238b33981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://6bb1390306788b33981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4bb139030b74564533981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4bb1332453233981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4bb13903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4b6432453233981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://43313903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

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-1.dat	family_octo

Loads dropped Dex/Jar 1 TTPs 1 IoCs

Runs executable file dropped to the device during analysis.

evasion

Download New Code at Runtime

T1407

ioc	pid	Process
/data/user/0/com.letlaughrfxj/cache/kczgt	4328	com.letlaughrfxj

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

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.letlaughrfxj

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.letlaughrfxj

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.letlaughrfxj
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.letlaughrfxj

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.letlaughrfxj

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.letlaughrfxj

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.letlaughrfxj

Requests modifying system settings. 1 IoCs

evasion

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

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.letlaughrfxj

com.letlaughrfxj
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.
- Uses Crypto APIs (Might try to encrypt user data)
PID:4328

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

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

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Downloads

/data/data/com.letlaughrfxj/.qcom.letlaughrfxj

Filesize
48B

MD5
046a414913add6f5bb60072c7db819b6

SHA1
451ee4f6809260aec622d772fd329c7d0297a842

SHA256
b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

SHA512
4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

Download Submit
/data/data/com.letlaughrfxj/.qcom.letlaughrfxj

Filesize
87B

MD5
970bd257f42ae02ce8d2b2f83eb0a41c

SHA1
98ae82e332b7e9efb1b67055ffceba104451689d

SHA256
8e0a9644fff5affe8879817b426a989773a5d5ee662406b90a2fd95c40491406

SHA512
16fb26ca344d4549efc81af51b13a06e3c52826977d1f38ea9e486910f0d92ddd23a190986510e7a470197d0717fecdd86a683776b62810d37bcdaeb0c65cac0

Download Submit
/data/data/com.letlaughrfxj/cache/kczgt

Filesize
449KB

MD5
5a958967aa2be700775bbc70c931c1b2

SHA1
ab29fa5704632d04eecc224b71a541f1c9e122f3

SHA256
16b0d9cae4c6eb45e8c033a5431c0eeafd17e0655fd91bcab92780c37fbf547b

SHA512
c88a094b308ab10f20de837cfa2475f7be75cafe0e90ea83edbee321bcc99c1c0aeb80e203785377c1fad9535e13e727c9cb23273eb3d4833d0cad3a3a2e6b36

Download Submit
/data/data/com.letlaughrfxj/cache/oat/kczgt.cur.prof

Filesize
362B

MD5
757f490c74e58162fb5c418bb5705826

SHA1
10874ddeb5c7d1852ab8a067d3c44e30196066ce

SHA256
8654a3b1da8b4cbd6fccbc98da3d873a5ec46bd9b2d242aa1dc055b64ae87f3b

SHA512
fe9f8157d429cdfc46c3337a9d28e2f24cf55428861d9dacfd9a21d33a1374a0ad249c3a8111b5edaf654a029baea7216174dd52050cd8813db6abe064075948

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

Filesize
219B

MD5
45873ea29ada5b37117d53b1475f7043

SHA1
9296bd1ee1666ddd5e59f63dc2aaf6bdfe40e25c

SHA256
933e78874f1b8e0de967c0eb393ebca82d7a06939905a35e3376fff12284e4c9

SHA512
3e4729852ded55a1a29599738ca0d7a1968b8ea23748d5e07cdc41650d1894cd035b01d5eea6b1fd07089b7a3070bbc85fe6d8982b7568ad26196de85a475998

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

Filesize
219B

MD5
e04212f64d07675587da089c9e572368

SHA1
9a91fc9ead1a5bc4a27975f7c967d043d67fc027

SHA256
8c27150c101cca7249fbdf5af2433f006c1b7072a831beec36a3c60c85749ce6

SHA512
0611609c3aac62289839e165b2956c30a38e72ef23fca8a109c16681729c5f7b270a1bd61313f9e1f26a7cedb7732cc0fa8813f36d982670e17d6e2c85e14fe8

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

Filesize
52B

MD5
41eb1c67743a09d63f64003d7fe8b953

SHA1
df5c313160a9475c14223446a0686f38032a86f1

SHA256
202809ac92307f7428d4edfbb89c02149e419a4211da03ba0b0c8b1a7ebc4bab

SHA512
a4780704b9c7cd28f985b116b560038f0738eaae0bc263307687b721d3665c38d522b7e597a536ef591d3e151847071f4625abb06dc7bdaa98db739ddcea8043

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

Filesize
70B

MD5
71719f427fa1326e94f93e7ead8b6581

SHA1
82753893546db387fe95bb64ba9a51660110d491

SHA256
3356eed574ac6bb0637ee2fdf8d209b15483afebb28b37b6f520b9174b8d6f6b

SHA512
90e198fe0f37afeb1e384f90cdc5f849633c5ad103e4636c4be818364600285f043116fcd73e49940169c0e165ea34e06e5382443b1b9d6c94d939575941f6f0

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

Filesize
69B

MD5
f171cf8e244eb36aa47ea38feb7e3210

SHA1
0c693d4794d9b1345ac137aff5f71630533c5563

SHA256
6b31041d56cf1b9a64b09bb5757955ebd93e76c40a4a0d4ef299302094a0f623

SHA512
6c2ee297d71349454f726a6c4a054a8ae626b6fb5d87560dacf0978cdbbaa55368353808e01c32abdd16153728b27b321157f91f25826ee71ef863480274fb72

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads