octo | 11dcd47ea09e8c1efe551e1832c7aeea810dce127f78299fce8d72a638fd9f51

Target

com.amvery4.apk
Size

1.7MB
MD5

25d99eea253d09f79fb4b8d39364ed8d
SHA1

8d923163764cc12fc287d81a718b4533e08f2fe9
SHA256

11dcd47ea09e8c1efe551e1832c7aeea810dce127f78299fce8d72a638fd9f51
SHA512

c82abf598ad8d3ac817c817496b8edeb0672d57a7771f7f707598a7c6d1ead5e282170c6da2f467b66e06f89020ab7152e6936b6b9a0c947805a55b34e9b3e25
SSDEEP

24576:VuNlJrpZQO3cf8Flg0f4dpDWRghaJMpv2uQOdPq0ZmARC6LD6RCaEABDMyZF:2j4M4/a+haJqv2uQOzZ2RCaEABYCF

Score

10^/10

octo banker evasion infostealer ransomware rat trojan

Malware Config

Extracted

Family

octo

https://176.113.115.110/YjcyMWYzZjc5OTUy/

https://31fdghhoo11.com/YjcyMWYzZjc5OTUy/

https://32fdghhoo11.com/YjcyMWYzZjc5OTUy/

https://33fdghhoo11.com/YjcyMWYzZjc5OTUy/

https://34fdghhoo11.com/YjcyMWYzZjc5OTUy/

https://35fdghhoo11.com/YjcyMWYzZjc5OTUy/

https://36fdghhoo11.com/YjcyMWYzZjc5OTUy/

https://37fdghhoo11.com/YjcyMWYzZjc5OTUy/

https://38fdghhoo11.com/YjcyMWYzZjc5OTUy/

https://39fdghhoo11.com/YjcyMWYzZjc5OTUy/

https://40fdghhoo11.com/YjcyMWYzZjc5OTUy/

https://41fdghhoo11.com/YjcyMWYzZjc5OTUy/

https://42fdghhoo11.com/YjcyMWYzZjc5OTUy/

https://43fdghhoo11.com/YjcyMWYzZjc5OTUy/

https://44fdghhoo11.com/YjcyMWYzZjc5OTUy/

https://45fdghhoo11.com/YjcyMWYzZjc5OTUy/

https://46fdghhoo11.com/YjcyMWYzZjc5OTUy/

https://47fdghhoo11.com/YjcyMWYzZjc5OTUy/

https://48fdghhoo11.com/YjcyMWYzZjc5OTUy/

https://49fdghhoo11.com/YjcyMWYzZjc5OTUy/

AES_key

Signatures

Octo
Octo is a banking malware with remote access capabilities first seen in April 2022.
banker trojan infostealer rat octo

Octo payload 3 IoCs

resource	yara_rule
behavioral2/files/4332-1.dat	family_octo
behavioral2/memory/4332-1.dex	family_octo
behavioral2/memory/4332-2.dex	family_octo

Makes use of the framework's Accessibility service. 2 IoCs

description	ioc	Process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.amvery4
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.amvery4

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps). 1 IoCs

banker

description	ioc	Process
Framework service call	android.content.pm.IPackageManager.getInstalledApplications	com.amvery4

Acquires the wake lock. 1 IoCs

description	ioc	Process
Framework service call	android.os.IPowerManager.acquireWakeLock	com.amvery4

Loads dropped Dex/Jar 3 IoCs

Runs executable file dropped to the device during analysis.

ioc	pid	Process
/data/user/0/com.amvery4/app_DynamicOptDex/rQiZfat.json	4332	com.amvery4
/data/user/0/com.amvery4/cache/vnfnsmibqlol	4332	com.amvery4
/data/user/0/com.amvery4/cache/vnfnsmibqlol	4332	com.amvery4

Reads information about phone network operator.

Requests disabling of battery optimizations (often used to enable hiding in the background). 1 IoCs

evasion

description	ioc	Process
Intent action	android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	com.amvery4

Uses Crypto APIs (Might try to encrypt user data). 1 IoCs

ransomware

description	ioc	Process
Framework API call	javax.crypto.Cipher.doFinal	com.amvery4

com.amvery4
1⤵
- Makes use of the framework's Accessibility service.
- Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps).
- Acquires the wake lock.
- Loads dropped Dex/Jar
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- Uses Crypto APIs (Might try to encrypt user data).
PID:4332

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

/data/user/0/com.amvery4/.qcom.amvery4

Filesize
48B

MD5
046a414913add6f5bb60072c7db819b6

SHA1
451ee4f6809260aec622d772fd329c7d0297a842

SHA256
b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

SHA512
4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

Download Submit
/data/user/0/com.amvery4/app_DynamicOptDex/rQiZfat.json

Filesize
2KB

MD5
5c519f982df7fcab7870e7fff354c542

SHA1
3c524914a02e74be7e7ad881789d279855273f0f

SHA256
dd033abf3260f89a03caae3c1e846c68480b8fd4007a93bba6796a1c01d4f6d5

SHA512
352f60e27cbffc8000c8abbeb459727517b10cc6313d427b2372d792f3dd4cca46c5fc610350b6993c62da165798cb56932b631a1baa1f397bec735cd43710e7

Download Submit
/data/user/0/com.amvery4/app_DynamicOptDex/rQiZfat.json

Filesize
7KB

MD5
1ad40f1fa90afaa39a0d8e268045a6f0

SHA1
0709a40568c29d072dbdaa27d8a571035628d4bb

SHA256
9fef690c0399b32fccbcf1c5a92df2c9c8e4f025ea7dddfc4e7018f1d6805e55

SHA512
5344da4532028d13d70f24f7d1b61859db2192d43d240a27ba4e03893b2cb048b52167c301cf2ac92175972575da8b61a5be4379a1007515a509cc653e2fba21

Download Submit
/data/user/0/com.amvery4/app_webview/Default/GPUCache/index

Filesize
48B

MD5
6d7d499960179766cd4261d12dacc411

SHA1
e6f8553b0015e12b23cc551afe98763f3b1c9bed

SHA256
c96ac03cfdbc6f4c1bdcdf764f1a6573f852e7aae5ef405969516b93ed271182

SHA512
6526c668477a01a850b8757b77dd3e7be27ad1991f5cf777685efcb03a21f31b71f6eae00f326931599baae4b16360e33e3d0f2894f1b2c1753391df02a14547

Download Submit
/data/user/0/com.amvery4/app_webview/Default/GPUCache/index-dir/temp-index

Filesize
96B

MD5
8c030c7f13fdb667a2e86bfa59e1251f

SHA1
cb70c693766b340c014e8cc422160732431162be

SHA256
bf90b92ec3b5b172f9fffa934f879fed56293e4ecf59fc2a7361119c8008ae1b

SHA512
dbe113111d48c960c4dfe36ff4b3b89a1ef382571705453b8cbb547322340716536bc892dac25d0d67c2558ba08795987a7e65b42fad181fcaa21993239306f3

Download Submit
/data/user/0/com.amvery4/app_webview/Default/Session Storage/000001.dbtmp

Filesize
16B

MD5
46295cac801e5d4857d09837238a6394

SHA1
44e0fa1b517dbf802b18faf0785eeea6ac51594b

SHA256
0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

SHA512
8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

Download Submit
/data/user/0/com.amvery4/app_webview/Default/Session Storage/000003.log

Filesize
61B

MD5
9f7eadc15e13d0608b4e4d590499ae2e

SHA1
afb27f5c20b117031328e12dd3111a7681ff8db5

SHA256
5c3a5b578ab9fe853ead7040bc161929ea4f6902073ba2b8bb84487622b98923

SHA512
88455784c705f565c70fa0a549c54e2492976e14643e9dd0a8e58c560d003914313df483f096bd33ec718aeec7667b8de063a73627aa3436ba6e7e562e565b3f

Download Submit
/data/user/0/com.amvery4/app_webview/Default/Session Storage/LOG

Filesize
123B

MD5
84cb0663fd3e41cd058832d8902da502

SHA1
3662271fff1cfce7d66d9d0fe27a09f4c74a597f

SHA256
100f0343950e04a192e9641d8fdf0062b9d7f05609c285ee808ab4f3cf2606cf

SHA512
0ac30c55f95c30d4a518fd9d25302da784326c12349612bcb107cce2741a17100c897175f98cacfc1047a8d2860b976e60a0c56ab1ed5b1a6d15b5e3e861edeb

Download Submit
/data/user/0/com.amvery4/app_webview/Default/Session Storage/MANIFEST-000001

Filesize
41B

MD5
5af87dfd673ba2115e2fcf5cfdb727ab

SHA1
d5b5bbf396dc291274584ef71f444f420b6056f1

SHA256
f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4

SHA512
de34583a7dbafe4dd0dc0601e8f6906b9bc6a00c56c9323561204f77abbc0dc9007c480ffe4092ff2f194d54616caf50aecbd4a1e9583cae0c76ad6dd7c2375b

Download Submit
/data/user/0/com.amvery4/app_webview/Default/Web Data

Filesize
120KB

MD5
a48cd9324b1f8754b07f00d863b840f3

SHA1
11c6614775b35a58f440971dfc87c8aaac6d6173

SHA256
8859a216183793485d4699bf69d7ed96904679834188d07b9a70424d47eb1420

SHA512
35fa712f0af4a5eeed7e00e4e59ed5027dc6609d268462fe79d92043be9ae0c5961ce9e1d2f64b1a196c9b6aa6242b8b83817b3ee4c1058596c58a99c45478b1

Download Submit
/data/user/0/com.amvery4/app_webview/Default/Web Data-journal

Filesize
2KB

MD5
e8e1bdcab3b7919775e80c6a0823ed90

SHA1
3570b145f7f08f88b1181faca4d8bd5e7cd8d5fd

SHA256
2a94be8c190c9d14ac50bf2afd49852e10b182e73f821f1bc3b9f74f916fb552

SHA512
1c8779880c8ed989b7d2beb66b12950ad7947380793fb58805ab97b83a498458cfbabd81173d4d8cede1a376cb578909b0ff6fb048c33cc2d619ba8ac6da516e

Download Submit
/data/user/0/com.amvery4/app_webview/webview_data.lock

Filesize
17B

MD5
b2ffab233e82a082d6750eb1043e86f5

SHA1
0b1ffc327fb61445fd6c5b574996dbc153e1b2c5

SHA256
61720624ec6b89bc536b5687aafcc057f1b68bdb59eb56f73e8bf6937a8bd068

SHA512
0f10234921c001223d058be96f236a8820d3fea3b628721f3e4a0bb2effc17879996b243f401632be92b70b474ba8b67d7ebab134fbd0753a9f91d83ece8c880

Download Submit
/data/user/0/com.amvery4/cache/WebView/Crashpad/settings.dat

Filesize
40B

MD5
e993b4daad73edac8c1cef0263a5d4c7

SHA1
dc7ae168fa35d677a30de754f53c4c5da57b9a97

SHA256
3b5548dca212f06597705040a45ad4a6bb3944c36182ccc443ecf75333debf66

SHA512
6f23a3e16889f186aefb38474da7ae17ce995cd1538875890c5dbbd9b8ffc498b747247c06a66eb2cc15bfb62857a807cce2ac8867b06d6e4f05564626668477

Download Submit
/data/user/0/com.amvery4/cache/WebView/Default/HTTP Cache/Code Cache/js/index

Filesize
48B

MD5
6d7d499960179766cd4261d12dacc411

SHA1
e6f8553b0015e12b23cc551afe98763f3b1c9bed

SHA256
c96ac03cfdbc6f4c1bdcdf764f1a6573f852e7aae5ef405969516b93ed271182

SHA512
6526c668477a01a850b8757b77dd3e7be27ad1991f5cf777685efcb03a21f31b71f6eae00f326931599baae4b16360e33e3d0f2894f1b2c1753391df02a14547

Download Submit
/data/user/0/com.amvery4/cache/WebView/Default/HTTP Cache/Code Cache/js/index-dir/temp-index

Filesize
96B

MD5
5554291ef3e442cff5e2f8ffa787682b

SHA1
07ceaa2946c26c3df9e9e26dcdbda1051293b3ba

SHA256
3b370c927d019b0c24e61c4afdb1e9b4fffad16a18c1aaf65e206dc02751d549

SHA512
2840165f268d35c6ba64949233998d234ae639676d29a9e04815d72c8944a72eae6bb8cc625e2793cb53ba3e7655c1faec866f75d1fc42fde793568e8a2e0dca

Download Submit
/data/user/0/com.amvery4/cache/WebView/Default/HTTP Cache/Code Cache/wasm/index

Filesize
48B

MD5
6d7d499960179766cd4261d12dacc411

SHA1
e6f8553b0015e12b23cc551afe98763f3b1c9bed

SHA256
c96ac03cfdbc6f4c1bdcdf764f1a6573f852e7aae5ef405969516b93ed271182

SHA512
6526c668477a01a850b8757b77dd3e7be27ad1991f5cf777685efcb03a21f31b71f6eae00f326931599baae4b16360e33e3d0f2894f1b2c1753391df02a14547

Download Submit
/data/user/0/com.amvery4/cache/WebView/Default/HTTP Cache/Code Cache/wasm/index-dir/temp-index

Filesize
96B

MD5
9700e6755882b2f198e1e699fb3acef0

SHA1
ffeeb3b7c7fd202a929d45ecc662971f9357eba0

SHA256
54dab5718e695b0f042a8b05164c4ed3c99aef0f946ec6c29fc3c5ce8395107d

SHA512
205931039502df4ddebec416eb3a231644b6bdef02eb015fc233d6a69a65714d6d2b07e9b87572e2325a66707d6b4849d8f8f8d2a4c29a7d5f7bae6cb34b8754

Download Submit
/data/user/0/com.amvery4/cache/WebView/font_unique_name_table.pb

Filesize
57KB

MD5
f080fa2a56ab5479d58063e5ea871447

SHA1
4b3fd57a98916fa5784305b76ba30af26b5253d9

SHA256
0aa374bc456330fd1b5daf18d25b4bb8e2df1998dfa85466f2c31843ff56e815

SHA512
8aee3186a95b389d39882620b7c4199a29aa50580aa98a381b2931a934de6406943c89d4d00ebeabff21e2b03b4a4adcc01e37e32a2335c4838be24bdbf61936

Download Submit
/data/user/0/com.amvery4/cache/vnfnsmibqlol

Filesize
449KB

MD5
24cafdac8d497681aa80d3e9a8ef4e72

SHA1
cef8331c3a85490fa5d6c6cc18e8ac406d6c6b9d

SHA256
9e51a48a222bd90d32e2243aac9f53b8afcbb4bdd0d13c0d7748fa73138ab114

SHA512
c0c4da7f63c26a88b9ae1b90e4680d7a97db4775c27dae4f0050af747f447850adab5e0569fd43e61825dc870754723525572d45e9c1d5980f5d25b9b5659389

Download Submit
/data/user/0/com.amvery4/cache/vnfnsmibqlol

Filesize
449KB

MD5
24cafdac8d497681aa80d3e9a8ef4e72

SHA1
cef8331c3a85490fa5d6c6cc18e8ac406d6c6b9d

SHA256
9e51a48a222bd90d32e2243aac9f53b8afcbb4bdd0d13c0d7748fa73138ab114

SHA512
c0c4da7f63c26a88b9ae1b90e4680d7a97db4775c27dae4f0050af747f447850adab5e0569fd43e61825dc870754723525572d45e9c1d5980f5d25b9b5659389

Download Submit
/data/user/0/com.amvery4/cache/vnfnsmibqlol

Filesize
449KB

MD5
24cafdac8d497681aa80d3e9a8ef4e72

SHA1
cef8331c3a85490fa5d6c6cc18e8ac406d6c6b9d

SHA256
9e51a48a222bd90d32e2243aac9f53b8afcbb4bdd0d13c0d7748fa73138ab114

SHA512
c0c4da7f63c26a88b9ae1b90e4680d7a97db4775c27dae4f0050af747f447850adab5e0569fd43e61825dc870754723525572d45e9c1d5980f5d25b9b5659389

Download Submit
/data/user/0/com.amvery4/shared_prefs/WebViewChromiumPrefs.xml

Filesize
127B

MD5
97ccd9a2b2063143df56b6937f961ca4

SHA1
5e78a91ae5df289ce83443cb7d5589dd3504fb5d

SHA256
248ff7928128015b1cfe3e6517c8f9b8c9511bfb8c8baf44fc1370640eac61fd

SHA512
86c05a5bb3d7eedea390664796966e9e5a5bf846c85808da54407788a76b3ee25b91428242a1e76d8765bfe51e1ba3636617fbab6e7dbb39fcc433e07c3fcd3b

Download Submit
/data/user/0/com.amvery4/shared_prefs/main.xml

Filesize
129B

MD5
3be23d81b0180b702a47a2725e913b69

SHA1
69220bf27070eda071dbfb5daf1aa296f2355cb1

SHA256
8a06dbe0212feba5a3bf4a39ead0de9428910383b9f8e5889434d807a753172e

SHA512
d3c74c3c030451144ffe2b5bba6f0c12d0f2c7522fccdf07b1e66f7808d5ced4b5f6325faed72236a596a370e9a8e528116ca775eb55b5d169e309980744f001

Download Submit
/data/user/0/com.amvery4/shared_prefs/main.xml

Filesize
7KB

MD5
05031872504de7fc1af37608c388ef5c

SHA1
039706a4bc72326c9f5f5b02f14537f42ec94d33

SHA256
10586fd1241b8ff1796c11717ff1bc2bfd652e4495d48c043dd030c99131461e

SHA512
94425105694b3fc58129879e020efff8c4367714a1882a4488329944591a1937d0fc9c2db100fed2a0efd58b4cd87e9c384be28a734cfc1c185b5ea4ce89640a

Download Submit

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Analysis

Sharing

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