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

General

  • Target

    chrome-update01231 (1).apk

  • Size

    1.9MB

  • MD5

    d7ccab4750500d52ee48ac9dfcb87f4d

  • SHA1

    52cbb4b76917b3a2aef37328f75bae8b323ead0e

  • SHA256

    8cc901e75b13808b61c77971fea73f1b59c1b8171e9669413d36a31e2f427377

  • SHA512

    90c3e267da4001b6196eb4e15b2eb9a86c6d2e3b6c23e5f941ab43ff0a8aa464fddc4e430143ded6e3cc24fbc0055ad53a057bf05dfb9e2fcb379cf957d8fa8a

  • SSDEEP

    49152:6zpyj+khIWj5PfT3FxyqyUWKuX2ZGZbmqkiCTAE4KoSv:ipqtttmhfX2ZQ/kUW

Malware Config

Extracted

Family

octo

C2

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.

  • Octo payload 3 IoCs
  • Makes use of the framework's Accessibility service. 2 IoCs
  • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps). 1 IoCs
  • Removes its main activity from the application launcher 1 IoCs
  • Acquires the wake lock. 1 IoCs
  • Loads dropped Dex/Jar 4 IoCs

    Runs executable file dropped to the device during analysis.

  • Reads information about phone network operator.
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 IoCs
  • Uses Crypto APIs (Might try to encrypt user data). 1 IoCs

Processes

  • 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

  • /data/data/com.completebe0/app_DynamicOptDex/XXtM.json

    Filesize

    2KB

    MD5

    d6da5c5529f474e412cb499403dbf48f

    SHA1

    26c1de09a30e36bb1fcfc220fb39e93eba25e278

    SHA256

    a2c64094c5803a5e83ebc4c2286c30463735a727443ee93bd0628dd2056b5279

    SHA512

    39ce9d281fd1f3455936882cbd63b95347cd931c4ec94c56f5b5311e3a1abf5b3dd00553eeea696ce77215ff01760e90fdf108a3e2268af73dda477a6191fe88

  • /data/data/com.completebe0/app_DynamicOptDex/XXtM.json

    Filesize

    2KB

    MD5

    c23b13ee75e62fad156c18baf3307196

    SHA1

    5fd075e86bb806ce7d703bd94c8179a622250633

    SHA256

    755d90dbde099e849869c2838ab3854ce85db818319d9a9ede0f66319e44fd0b

    SHA512

    4832845b05e2be6cd7d6f510df170348415afba3cccfa9a1723fa2b13734905d153d55d1e634c1b7553aaf7b2e0500dcb21cdfa2c5d1c1bbb3b28dd6920195d8

  • /data/data/com.completebe0/cache/bhvbn

    Filesize

    457KB

    MD5

    0f298b4d05ac13449acd725c06fa6115

    SHA1

    da53ed2eb6952b54799328a33fd5275e60a0fcc9

    SHA256

    773a283d03ea5440eebcbb72b3f98988dc66342f0a8ab6415d9a01346aa407ac

    SHA512

    5d12aad043cf6a5b879a8285896c9eb73ff96c4ca29de6170db77937e83edf26ebe6aae3ebbd1f8208830f7886e8ce1d64f9fa4c4eccf75f6c86e4ae99b086a5

  • /data/data/com.completebe0/cache/oat/bhvbn.cur.prof

    Filesize

    448B

    MD5

    c36fd97bb2c196d47e52c9431988b6f4

    SHA1

    598698d98b6cff16d50ba39336cb6181fcb803e0

    SHA256

    b6820d48e9f0241ffc7c0ce4f81a4a360287ae69105b774ab450672462e50694

    SHA512

    448b436505d2bd1312e7e6f2d004869bbbeb23d0a90cb9f4d104717b37a8632b4a79e62e59fc77a8771df31a9a6b97ffc1ad65d46fc3fd3d31f0859f4520d142

  • /data/data/com.completebe0/kl.txt

    Filesize

    230B

    MD5

    73d6b222198e6e8edd1c6db46a7dc347

    SHA1

    fe9a28072116295a76daf355d327ced7f7238345

    SHA256

    59c63472a3ccdf4b875693f57c1b81a72a6c64fabbf4446722d743047b077e2e

    SHA512

    75abe90e380a2377b44ccb1e39a753b213deba1350c6b87c79a2710484be815a8c94b32db9d1595ac8986d953fb2f7c01a817a1f004ab0a6bea585389d9d4cba

  • /data/data/com.completebe0/kl.txt

    Filesize

    54B

    MD5

    469a551045cee7ecec90b40120186be9

    SHA1

    90620471e0f7cae10a6412e4fb0de479e0021e56

    SHA256

    4d6862c70370605a01d3d12f103151b9fd028b7f156a8195b3a75c0b43167f50

    SHA512

    49b29275c03c34ca0690267765cde94fbbd34643cb17363eede471b6414249cb7aea2d9f81d12772d6d1033cb31d879b898f029d36a7eed790e43504d90b8f27

  • /data/data/com.completebe0/kl.txt

    Filesize

    63B

    MD5

    034aaee287dad8b6fce9db039c170814

    SHA1

    adb0583267447d60a5077a6a15ae35d6ae4e178a

    SHA256

    b7d2f02d643bf3eef859612a903e9e629debf255169a67d15953e0f428f80218

    SHA512

    6f2b108eae353289f6937b9967b02361c8694fb39f663c1616265c312d7ed8b50be1211bae203988228cb47f89d58a9f0d7f6942886649a6fb7e16dcd61453c5

  • /data/data/com.completebe0/kl.txt

    Filesize

    71B

    MD5

    c3353bd184b0ae99b6cfb8b4a297d447

    SHA1

    2c1190ba6cf856ff9ffd9916d128b8d6bc505ee4

    SHA256

    cfa890419743267f6d22ac130e9b5748f3bd77493cceb64e935e4cee523d6d5c

    SHA512

    870fb930a47a613b86d1e3a15a0e4ca51cc1fa0ef035baf9ed2f4f1aac04f18354baa2e4559244fed7b44197a522eee991fc77e31af24cc6d0f701c278e721a1

  • /data/data/com.completebe0/kl.txt

    Filesize

    423B

    MD5

    48e33cba314ab5e07289d32a40c887a7

    SHA1

    77ecb9364a814d2664686b3e9eaee25e4fc843b2

    SHA256

    6431b21280ebe39c7f45f9ef119ab4a9f860c3582e6ccd92f2b200ffc023af52

    SHA512

    de656fa58c1d9fe201e7d02c5d761dcc6c34db1ede0eadc4d942a620a5d2eb80f65b8e7ce70d1ef96b34873ab95a72cb59c5d7f2bde0f70d104c06e7726ea100

  • /data/user/0/com.completebe0/app_DynamicOptDex/XXtM.json

    Filesize

    6KB

    MD5

    0fb583646f5b47949f86d01282ca0435

    SHA1

    671034886dd68896d4f57c25a51b724aa0f324cb

    SHA256

    5521e7fdacd279fb031f57c6adf255cc788c86f9ee1e6709b969735d50c2dc84

    SHA512

    e9226ff0a2ffc2ce0df05b3b247f4f5e2798942fa894ac035d6965d393675a359c5419aa7ac14e09da56763b68787652ad1839aa64e912c377c542b556211e42

  • /data/user/0/com.completebe0/app_DynamicOptDex/XXtM.json

    Filesize

    6KB

    MD5

    8e4612b5633c2f3f03aad82512e10946

    SHA1

    1ed04da4b21489501338b57999f858d775ff0579

    SHA256

    863d543d469a91d30fbf78676c5f014496fa2f36f8beda1c6f04a94fa22d6b88

    SHA512

    f0930dded69c9328957a170df5f78f10668aefd2e7168f6e17214169202750f7e9760dc2f6e6c0dffc593e49ee132fcbecf7597871b57dc71a8ffe958f587312

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

    Filesize

    457KB

    MD5

    0f298b4d05ac13449acd725c06fa6115

    SHA1

    da53ed2eb6952b54799328a33fd5275e60a0fcc9

    SHA256

    773a283d03ea5440eebcbb72b3f98988dc66342f0a8ab6415d9a01346aa407ac

    SHA512

    5d12aad043cf6a5b879a8285896c9eb73ff96c4ca29de6170db77937e83edf26ebe6aae3ebbd1f8208830f7886e8ce1d64f9fa4c4eccf75f6c86e4ae99b086a5

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

    Filesize

    457KB

    MD5

    0f298b4d05ac13449acd725c06fa6115

    SHA1

    da53ed2eb6952b54799328a33fd5275e60a0fcc9

    SHA256

    773a283d03ea5440eebcbb72b3f98988dc66342f0a8ab6415d9a01346aa407ac

    SHA512

    5d12aad043cf6a5b879a8285896c9eb73ff96c4ca29de6170db77937e83edf26ebe6aae3ebbd1f8208830f7886e8ce1d64f9fa4c4eccf75f6c86e4ae99b086a5