octo | 8cc901e75b13808b61c77971fea73f1b59c1b8171e9669413d36a31e2f427377

Resubmissions

05-10-2023 12:02

231005-n7m5asah6w 10

01-10-2023 09:19

231001-lakxkahh3v 10

Analysis

max time kernel
3935044s
max time network
139s
platform
android_x86
resource
android-x86-arm-20230831-en
submitted
01-10-2023 09:19

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General

Target

chrome-update01231 (1).apk
Size

1.9MB
MD5

d7ccab4750500d52ee48ac9dfcb87f4d
SHA1

52cbb4b76917b3a2aef37328f75bae8b323ead0e
SHA256

8cc901e75b13808b61c77971fea73f1b59c1b8171e9669413d36a31e2f427377
SHA512

90c3e267da4001b6196eb4e15b2eb9a86c6d2e3b6c23e5f941ab43ff0a8aa464fddc4e430143ded6e3cc24fbc0055ad53a057bf05dfb9e2fcb379cf957d8fa8a
SSDEEP

49152:6zpyj+khIWj5PfT3FxyqyUWKuX2ZGZbmqkiCTAE4KoSv:ipqtttmhfX2ZQ/kUW

Score

10^/10

octo banker evasion infostealer ransomware rat stealth trojan

Malware Config

Extracted

Family

octo

https://zaglefolki1.info/MTU2OWE0NzJjNGY5/

https://passajire555.live/MTU2OWE0NzJjNGY5/

https://majestike8ca.top/MTU2OWE0NzJjNGY5/

https://jikugac818v.vip/MTU2OWE0NzJjNGY5/

https://5a9udxg6l6gd.su/MTU2OWE0NzJjNGY5/

https://zazarazgok7215vor1.pro/MTU2OWE0NzJjNGY5/

https://juf18ki1ca15ca1la.info/MTU2OWE0NzJjNGY5/

https://pofvac15camkkecz5.cc/MTU2OWE0NzJjNGY5/

https://makivn58jnid51.live/MTU2OWE0NzJjNGY5/

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.completebe0/cache/bhvbn	family_octo
/data/user/0/com.completebe0/cache/bhvbn	family_octo
/data/user/0/com.completebe0/cache/bhvbn	family_octo

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

Processes:

com.completebe0

description	ioc	process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.completebe0
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.completebe0

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.completebe0

description ioc process

Framework service call android.content.pm.IPackageManager.getInstalledApplications com.completebe0
Removes its main activity from the application launcher 1 IoCs
stealth trojan

Processes:

com.completebe0

pid process

4206 com.completebe0
Acquires the wake lock. 1 IoCs

Processes:

com.completebe0

description ioc process

Framework service call android.os.IPowerManager.acquireWakeLock com.completebe0

description	ioc	process
Framework service call	android.content.pm.IPackageManager.getInstalledApplications	com.completebe0

pid	process
4206	com.completebe0

description	ioc	process
Framework service call	android.os.IPowerManager.acquireWakeLock	com.completebe0

Loads dropped Dex/Jar 4 IoCs

Runs executable file dropped to the device during analysis.

Processes:

/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.completebe0/app_DynamicOptDex/XXtM.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.completebe0/app_DynamicOptDex/oat/x86/XXtM.odex --compiler-filter=quicken --class-loader-context=&com.completebe0

ioc	pid	process
/data/user/0/com.completebe0/app_DynamicOptDex/XXtM.json	4232	/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.completebe0/app_DynamicOptDex/XXtM.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.completebe0/app_DynamicOptDex/oat/x86/XXtM.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.completebe0/app_DynamicOptDex/XXtM.json	4206	com.completebe0
/data/user/0/com.completebe0/cache/bhvbn	4206	com.completebe0
/data/user/0/com.completebe0/cache/bhvbn	4206	com.completebe0

Reads information about phone network operator.
Requests disabling of battery optimizations (often used to enable hiding in the background). 1 IoCs
evasion

Processes:

com.completebe0

description ioc process

Intent action android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS com.completebe0
Uses Crypto APIs (Might try to encrypt user data). 1 IoCs
ransomware

Processes:

com.completebe0

description ioc process

Framework API call javax.crypto.Cipher.doFinal com.completebe0

description	ioc	process
Intent action	android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	com.completebe0

description	ioc	process
Framework API call	javax.crypto.Cipher.doFinal	com.completebe0

com.completebe0
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).
- Uses Crypto APIs (Might try to encrypt user data).
PID:4206
- /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.completebe0/app_DynamicOptDex/XXtM.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.completebe0/app_DynamicOptDex/oat/x86/XXtM.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4232

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

/data/data/com.completebe0/.qcom.completebe0

Filesize
48B

MD5
046a414913add6f5bb60072c7db819b6

SHA1
451ee4f6809260aec622d772fd329c7d0297a842

SHA256
b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

SHA512
4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

Download Submit
/data/data/com.completebe0/app_DynamicOptDex/XXtM.json

Filesize
2KB

MD5
d6da5c5529f474e412cb499403dbf48f

SHA1
26c1de09a30e36bb1fcfc220fb39e93eba25e278

SHA256
a2c64094c5803a5e83ebc4c2286c30463735a727443ee93bd0628dd2056b5279

SHA512
39ce9d281fd1f3455936882cbd63b95347cd931c4ec94c56f5b5311e3a1abf5b3dd00553eeea696ce77215ff01760e90fdf108a3e2268af73dda477a6191fe88

Download Submit
/data/data/com.completebe0/app_DynamicOptDex/XXtM.json

Filesize
2KB

MD5
c23b13ee75e62fad156c18baf3307196

SHA1
5fd075e86bb806ce7d703bd94c8179a622250633

SHA256
755d90dbde099e849869c2838ab3854ce85db818319d9a9ede0f66319e44fd0b

SHA512
4832845b05e2be6cd7d6f510df170348415afba3cccfa9a1723fa2b13734905d153d55d1e634c1b7553aaf7b2e0500dcb21cdfa2c5d1c1bbb3b28dd6920195d8

Download Submit
/data/data/com.completebe0/cache/bhvbn

Filesize
457KB

MD5
0f298b4d05ac13449acd725c06fa6115

SHA1
da53ed2eb6952b54799328a33fd5275e60a0fcc9

SHA256
773a283d03ea5440eebcbb72b3f98988dc66342f0a8ab6415d9a01346aa407ac

SHA512
5d12aad043cf6a5b879a8285896c9eb73ff96c4ca29de6170db77937e83edf26ebe6aae3ebbd1f8208830f7886e8ce1d64f9fa4c4eccf75f6c86e4ae99b086a5

Download Submit
/data/data/com.completebe0/cache/oat/bhvbn.cur.prof

Filesize
448B

MD5
c36fd97bb2c196d47e52c9431988b6f4

SHA1
598698d98b6cff16d50ba39336cb6181fcb803e0

SHA256
b6820d48e9f0241ffc7c0ce4f81a4a360287ae69105b774ab450672462e50694

SHA512
448b436505d2bd1312e7e6f2d004869bbbeb23d0a90cb9f4d104717b37a8632b4a79e62e59fc77a8771df31a9a6b97ffc1ad65d46fc3fd3d31f0859f4520d142

Download Submit
/data/data/com.completebe0/kl.txt

Filesize
230B

MD5
73d6b222198e6e8edd1c6db46a7dc347

SHA1
fe9a28072116295a76daf355d327ced7f7238345

SHA256
59c63472a3ccdf4b875693f57c1b81a72a6c64fabbf4446722d743047b077e2e

SHA512
75abe90e380a2377b44ccb1e39a753b213deba1350c6b87c79a2710484be815a8c94b32db9d1595ac8986d953fb2f7c01a817a1f004ab0a6bea585389d9d4cba

Download Submit
/data/data/com.completebe0/kl.txt

Filesize
54B

MD5
469a551045cee7ecec90b40120186be9

SHA1
90620471e0f7cae10a6412e4fb0de479e0021e56

SHA256
4d6862c70370605a01d3d12f103151b9fd028b7f156a8195b3a75c0b43167f50

SHA512
49b29275c03c34ca0690267765cde94fbbd34643cb17363eede471b6414249cb7aea2d9f81d12772d6d1033cb31d879b898f029d36a7eed790e43504d90b8f27

Download Submit
/data/data/com.completebe0/kl.txt

Filesize
63B

MD5
034aaee287dad8b6fce9db039c170814

SHA1
adb0583267447d60a5077a6a15ae35d6ae4e178a

SHA256
b7d2f02d643bf3eef859612a903e9e629debf255169a67d15953e0f428f80218

SHA512
6f2b108eae353289f6937b9967b02361c8694fb39f663c1616265c312d7ed8b50be1211bae203988228cb47f89d58a9f0d7f6942886649a6fb7e16dcd61453c5

Download Submit
/data/data/com.completebe0/kl.txt

Filesize
71B

MD5
c3353bd184b0ae99b6cfb8b4a297d447

SHA1
2c1190ba6cf856ff9ffd9916d128b8d6bc505ee4

SHA256
cfa890419743267f6d22ac130e9b5748f3bd77493cceb64e935e4cee523d6d5c

SHA512
870fb930a47a613b86d1e3a15a0e4ca51cc1fa0ef035baf9ed2f4f1aac04f18354baa2e4559244fed7b44197a522eee991fc77e31af24cc6d0f701c278e721a1

Download Submit
/data/data/com.completebe0/kl.txt

Filesize
423B

MD5
48e33cba314ab5e07289d32a40c887a7

SHA1
77ecb9364a814d2664686b3e9eaee25e4fc843b2

SHA256
6431b21280ebe39c7f45f9ef119ab4a9f860c3582e6ccd92f2b200ffc023af52

SHA512
de656fa58c1d9fe201e7d02c5d761dcc6c34db1ede0eadc4d942a620a5d2eb80f65b8e7ce70d1ef96b34873ab95a72cb59c5d7f2bde0f70d104c06e7726ea100

Download Submit
/data/user/0/com.completebe0/app_DynamicOptDex/XXtM.json

Filesize
6KB

MD5
0fb583646f5b47949f86d01282ca0435

SHA1
671034886dd68896d4f57c25a51b724aa0f324cb

SHA256
5521e7fdacd279fb031f57c6adf255cc788c86f9ee1e6709b969735d50c2dc84

SHA512
e9226ff0a2ffc2ce0df05b3b247f4f5e2798942fa894ac035d6965d393675a359c5419aa7ac14e09da56763b68787652ad1839aa64e912c377c542b556211e42

Download Submit
/data/user/0/com.completebe0/app_DynamicOptDex/XXtM.json

Filesize
6KB

MD5
8e4612b5633c2f3f03aad82512e10946

SHA1
1ed04da4b21489501338b57999f858d775ff0579

SHA256
863d543d469a91d30fbf78676c5f014496fa2f36f8beda1c6f04a94fa22d6b88

SHA512
f0930dded69c9328957a170df5f78f10668aefd2e7168f6e17214169202750f7e9760dc2f6e6c0dffc593e49ee132fcbecf7597871b57dc71a8ffe958f587312

Download Submit
/data/user/0/com.completebe0/cache/bhvbn

Filesize
457KB

MD5
0f298b4d05ac13449acd725c06fa6115

SHA1
da53ed2eb6952b54799328a33fd5275e60a0fcc9

SHA256
773a283d03ea5440eebcbb72b3f98988dc66342f0a8ab6415d9a01346aa407ac

SHA512
5d12aad043cf6a5b879a8285896c9eb73ff96c4ca29de6170db77937e83edf26ebe6aae3ebbd1f8208830f7886e8ce1d64f9fa4c4eccf75f6c86e4ae99b086a5

Download Submit
/data/user/0/com.completebe0/cache/bhvbn

Filesize
457KB

MD5
0f298b4d05ac13449acd725c06fa6115

SHA1
da53ed2eb6952b54799328a33fd5275e60a0fcc9

SHA256
773a283d03ea5440eebcbb72b3f98988dc66342f0a8ab6415d9a01346aa407ac

SHA512
5d12aad043cf6a5b879a8285896c9eb73ff96c4ca29de6170db77937e83edf26ebe6aae3ebbd1f8208830f7886e8ce1d64f9fa4c4eccf75f6c86e4ae99b086a5

Download Submit