octo | 05aaa2964513b270063a89da52cb9ec4f7e96000979731f712983d2864769739

Analysis

max time kernel
2253040s
max time network
132s
platform
android_x86
resource
android-x86-arm-20230831-en
submitted
11-09-2023 22:03

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General

Target

05aaa2964513b270063a89da52cb9ec4f7e96000979731f712983d2864769739.apk
Size

541KB
MD5

e90e18e21599aaf2da460ffe2010be46
SHA1

61fc862f08e8ce7b502a799a3ce51d4bee959734
SHA256

05aaa2964513b270063a89da52cb9ec4f7e96000979731f712983d2864769739
SHA512

cd24f2b770c5de4b1121aac538f21a58d9c45c8fe932b2348cb8fe2947d650d800a4a1d1b556664f7ae1e6e54a72035b38ee5608b6d564c40de00aafcb7e31a1
SSDEEP

12288:/tKQdBw42FeE9dy1vq+X9bbSGJ7spLN8uAqb:lKQkIsHOFSGupx8uT

Score

10^/10

octo banker evasion infostealer ransomware rat stealth trojan

Malware Config

Extracted

Family

octo

https://79.110.62.118/YTFlMzViNjNiNWM3/

https://3yamacfirarda22.xyz/YTFlMzViNjNiNWM3/

https://5yam7acfirarda22.xyz/YTFlMzViNjNiNWM3/

https://5yam4acfirarda22.xyz/YTFlMzViNjNiNWM3/

https://5yam8acfirarda22.xyz/YTFlMzViNjNiNWM3/

https://5y3am4acfirarda22.xyz/YTFlMzViNjNiNWM3/

https://6ya5m8acfirarda22.xyz/YTFlMzViNjNiNWM3/

https://7ya5m8acfirarda22.xyz/YTFlMzViNjNiNWM3/

https://8ya5m8acfirarda22.xyz/YTFlMzViNjNiNWM3/

https://9ya5m8acfirarda22.xyz/YTFlMzViNjNiNWM3/

https://15yam4acfirarda22.xyz/YTFlMzViNjNiNWM3/

https://25yam8acfirarda22.xyz/YTFlMzViNjNiNWM3/

https://35y3am4acfirarda22.xyz/YTFlMzViNjNiNWM3/

https://66ya5m8acfirarda22.xyz/YTFlMzViNjNiNWM3/

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

Processes:

resource	yara_rule
/data/data/com.farsoundcfm/cache/mzdecbpkiub	family_octo
/data/user/0/com.farsoundcfm/cache/mzdecbpkiub	family_octo
/data/user/0/com.farsoundcfm/cache/mzdecbpkiub	family_octo

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

Processes:

com.farsoundcfm

description	ioc	process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.farsoundcfm
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.farsoundcfm

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

Processes:

com.farsoundcfm

description ioc process

Framework service call android.content.pm.IPackageManager.getInstalledApplications com.farsoundcfm
Removes its main activity from the application launcher 1 IoCs
stealth trojan

Processes:

com.farsoundcfm

pid process

4145 com.farsoundcfm
Acquires the wake lock. 1 IoCs

Processes:

com.farsoundcfm

description ioc process

Framework service call android.os.IPowerManager.acquireWakeLock com.farsoundcfm
Loads dropped Dex/Jar 2 IoCs
Runs executable file dropped to the device during analysis.

Processes:

com.farsoundcfm

ioc pid process

/data/user/0/com.farsoundcfm/cache/mzdecbpkiub 4145 com.farsoundcfm
/data/user/0/com.farsoundcfm/cache/mzdecbpkiub 4145 com.farsoundcfm
Reads information about phone network operator.
Requests disabling of battery optimizations (often used to enable hiding in the background). 1 IoCs
evasion

Processes:

com.farsoundcfm

description ioc process

Intent action android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS com.farsoundcfm
Removes a system notification. 1 IoCs
evasion

Processes:

com.farsoundcfm

description ioc process

Framework service call android.app.INotificationManager.cancelNotificationWithTag com.farsoundcfm
Uses Crypto APIs (Might try to encrypt user data). 1 IoCs
ransomware

Processes:

com.farsoundcfm

description ioc process

Framework API call javax.crypto.Cipher.doFinal com.farsoundcfm

description	ioc	process
Framework service call	android.content.pm.IPackageManager.getInstalledApplications	com.farsoundcfm

pid	process
4145	com.farsoundcfm

description	ioc	process
Framework service call	android.os.IPowerManager.acquireWakeLock	com.farsoundcfm

ioc	pid	process
/data/user/0/com.farsoundcfm/cache/mzdecbpkiub	4145	com.farsoundcfm
/data/user/0/com.farsoundcfm/cache/mzdecbpkiub	4145	com.farsoundcfm

description	ioc	process
Intent action	android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	com.farsoundcfm

description	ioc	process
Framework service call	android.app.INotificationManager.cancelNotificationWithTag	com.farsoundcfm

description	ioc	process
Framework API call	javax.crypto.Cipher.doFinal	com.farsoundcfm

com.farsoundcfm
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).
- Removes its main activity from the application launcher
- Acquires the wake lock.
- Loads dropped Dex/Jar
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- Removes a system notification.
- Uses Crypto APIs (Might try to encrypt user data).
PID:4145

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

/data/data/com.farsoundcfm/.qcom.farsoundcfm

Filesize
48B

MD5
046a414913add6f5bb60072c7db819b6

SHA1
451ee4f6809260aec622d772fd329c7d0297a842

SHA256
b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

SHA512
4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

Download Submit
/data/data/com.farsoundcfm/cache/mzdecbpkiub

Filesize
450KB

MD5
8924f5a40375a72d7a240fbe7dc2b98d

SHA1
7c6487afdf78d4b43c6fbdb4dcd9feee12a08c92

SHA256
806a030d960ccc00429aaa7c99a5cd303eb5f6204b9c646c832ef61cfac820d8

SHA512
221665c885a7b4a28c06960598940ce86e41091bec3d9a5e128a0092c94232b403113560bcb3628a22ea0094b0dba6ad415e7fd1e623de549b88961bfeb3c8e9

Download Submit
/data/data/com.farsoundcfm/cache/oat/mzdecbpkiub.cur.prof

Filesize
470B

MD5
c0ed501d54474c4fab401a645a38e32b

SHA1
8f684e9a3c13a3b02e7c7d4c55f65051e7f9e064

SHA256
ee8cb9741ac0bf411aaaee954cc40483181bfc93f14878dce621e0b9578e27c0

SHA512
ee62fe0232d9a67d8dd223586bc0cb0a8e89278342d70884951e3e2247c4f74de225ca70a25c5f21ec22b3496155ebd86a4eb75cdb5233ea3c87aaff9d2c0af2

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

Filesize
28B

MD5
6311c3fd15588bb5c126e6c28ff5fffe

SHA1
ce81d136fce31779f4dd62e20bdaf99c91e2fc57

SHA256
8b82f6032e29a2b5c96031a3630fb6173d12ff0295bc20bb21b877d08f0812d8

SHA512
2975fe2e94b6a8adc9cfc1a865ad113772b54572883a537b02a16dd2d029c0f7d9cca3b154fd849bdfe978e18b396bcf9fa6e67e7c61f92bdc089a29a9c355c6

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

Filesize
234B

MD5
02ddacb88602ddee4ea1a16f28454a14

SHA1
7401c646b430ea63771befdae7c6e6754271ba79

SHA256
5a6592b90cc196f39aa7feb91ff61a65c3e1913eaa7b3a5f92190e63c6fefa0f

SHA512
85aaeb2ee83637ce09645da4e585f5d15878c9c3b3f293932a6edf7ffbaa3452e7826e39fba9c0b62155137be70c3c5c4b08b6b34ff34ca802cfdd6a3032e7e9

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

Filesize
63B

MD5
8b514023acb55df436f5b3777010e79b

SHA1
0400366acddd3a97ccf0ec6ce29e7a2989c13a45

SHA256
4bd96fdac6ac9e20ec3deae3e1ced1706e1630c0bf7fa90415ee2660ec01a01b

SHA512
35ebe5196ece12f3b7788d4ca59236b12853e129a2adc556d0ecb0c9a3cb7611837bddb044043044761defd2959a67dde7389bba62abac19cdea0e018ba2c96d

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

Filesize
54B

MD5
5246b4077ecd8e1fb15b1c603b7fc05d

SHA1
2d9b3b6531aa2a347a7c9cb8d8b970ee941e167c

SHA256
03705b7319bc83704fd3d373ff0966de8ceb421e672ebe00ea4f3238e305eb93

SHA512
bb2c966b0342c1e4114e27f461603b10b363755c860ab6c20258330cb452d40374177bd071bb7e8499b0806b063228bc010d7f4b93048eed497c03f84e5c4fb7

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

Filesize
431B

MD5
40ce9bffb78a6c927b589a4a3d444acc

SHA1
59c51245b21f874d5288c61e32951b279e950e8a

SHA256
f484032759726f2e6863c53425b083cc99b9027501cc9d78a6abfe6c2c72fbe2

SHA512
3ad49780ab9337b734071930146677563299265375a432219ab3b3dc5c955c8245a53ef058a32cbf4108c7dfa173a512e057cb6efbf516a807550a760f13eab6

Download Submit
/data/user/0/com.farsoundcfm/cache/mzdecbpkiub

Filesize
450KB

MD5
8924f5a40375a72d7a240fbe7dc2b98d

SHA1
7c6487afdf78d4b43c6fbdb4dcd9feee12a08c92

SHA256
806a030d960ccc00429aaa7c99a5cd303eb5f6204b9c646c832ef61cfac820d8

SHA512
221665c885a7b4a28c06960598940ce86e41091bec3d9a5e128a0092c94232b403113560bcb3628a22ea0094b0dba6ad415e7fd1e623de549b88961bfeb3c8e9

Download Submit
/data/user/0/com.farsoundcfm/cache/mzdecbpkiub

Filesize
450KB

MD5
8924f5a40375a72d7a240fbe7dc2b98d

SHA1
7c6487afdf78d4b43c6fbdb4dcd9feee12a08c92

SHA256
806a030d960ccc00429aaa7c99a5cd303eb5f6204b9c646c832ef61cfac820d8

SHA512
221665c885a7b4a28c06960598940ce86e41091bec3d9a5e128a0092c94232b403113560bcb3628a22ea0094b0dba6ad415e7fd1e623de549b88961bfeb3c8e9

Download Submit