Analysis

  • max time kernel
    17s
  • max time network
    26s
  • platform
    android-9_x86
  • resource
    android-x86-arm-20240910-en
  • resource tags

    arch:armarch:x86image:android-x86-arm-20240910-enlocale:en-usos:android-9-x86system
  • submitted
    11-01-2025 16:18

General

  • Target

    e5a63e9194df617548cd6df43d6fbefbe039d8700fa9235c9a022ed5389ccd83.apk

  • Size

    8.3MB

  • MD5

    4ce4086a7d4f8224a52f4c928f0eca78

  • SHA1

    1d97be42ee3977bebbcca8a28a935e475d6ebdce

  • SHA256

    e5a63e9194df617548cd6df43d6fbefbe039d8700fa9235c9a022ed5389ccd83

  • SHA512

    325e9ac7f6685881b81bef5a79b0d8ccb2cf67aa02c3bd570f3271630673cf5ada914cadf70345fea050621d8973af14ba7be5ba758ec2b01555d0bb4092ca36

  • SSDEEP

    98304:FY21wVKARvI53Xm5iSRGDdzjIBMJSTsLYRs+cY2pBW8om:G26UEu3XmraJLYRrcRpY8om

Malware Config

Extracted

Family

octo

AES_key
AES_key

Signatures

  • Octo

    Octo is a banking malware with remote access capabilities first seen in April 2022.

  • Octo family
  • Octo payload 1 IoCs
  • Loads dropped Dex/Jar 1 TTPs 3 IoCs

    Runs executable file dropped to the device during analysis.

  • Makes use of the framework's Accessibility service 4 TTPs 2 IoCs

    Retrieves information displayed on the phone screen using AccessibilityService.

  • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
  • Queries the phone number (MSISDN for GSM devices) 1 TTPs
  • Acquires the wake lock 1 IoCs
  • 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.

  • Queries the mobile country code (MCC) 1 TTPs 1 IoCs
  • Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
  • Reads information about phone network operator. 1 TTPs
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs
  • Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
  • Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
  • Checks CPU information 2 TTPs 1 IoCs
  • Checks memory information 2 TTPs 1 IoCs

Processes

  • com.sdialog_tallp
    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
    • Queries the mobile country code (MCC)
    • Requests disabling of battery optimizations (often used to enable hiding in the background).
    • Registers a broadcast receiver at runtime (usually for listening for system events)
    • Uses Crypto APIs (Might try to encrypt user data)
    • Checks CPU information
    • Checks memory information
    PID:4332
    • /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.sdialog_tallp/app_table/kMQex.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.sdialog_tallp/app_table/oat/x86/kMQex.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4360

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads

  • /data/data/com.sdialog_tallp/.global.com.sdialog_tallp

    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

  • /data/data/com.sdialog_tallp/app_table/kMQex.json

    Filesize

    1009B

    MD5

    fcc17efc491433fd6eb2d3973cb99eef

    SHA1

    81c4c1f8f48b20be24eba9348068563f0cbeecd3

    SHA256

    6ef9a56551706b5a9bb9aee2b218b9fc7d0e146ef8b23123f77b53e92408b673

    SHA512

    44abc587c54c26c31969096ba756a474023d9779481692c52b757b7682b2839338f6fd98515cd2533174aa87f2d2ac905bcac2d4e1aa8f09b42b745ef9be9e9f

  • /data/data/com.sdialog_tallp/app_table/kMQex.json

    Filesize

    1009B

    MD5

    f22d8d55b6b0e5465530655e8620986d

    SHA1

    5dab546a61c95fe9ec7301f57c1f2bb7984ccc5f

    SHA256

    ea55506f87bc700a6b3cc728a8f4513e7d6ea3e431a639bda96da703bb431850

    SHA512

    12f753c928a51e34f24fe71bd994e69a65794e5c06ff5d3bc582c55700f37688733b888898eb64756bf95df40671d5133bade3b5d3ceba04b422cd8afce7a899

  • /data/data/com.sdialog_tallp/files/.l

    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

  • /data/user/0/com.sdialog_tallp/app_table/kMQex.json

    Filesize

    1KB

    MD5

    c9bc50d22b5b0414819d67f424f12939

    SHA1

    1efab66945657831ded9ef6b16df6c26c3150af1

    SHA256

    020b2c8f7efe6e4d6d321f6a1a1fbf519234a0c7657b525b5e12dc3792c2e41f

    SHA512

    a75b4d5a1690bafb18af1d9520ad567d6dad8122ff7d166c105cbb39281d16f7dd3437de753a849e336b96fbec46e12f25e003550e1fbe0be45034484a504283

  • /data/user/0/com.sdialog_tallp/app_table/kMQex.json

    Filesize

    1KB

    MD5

    65c1738f6eff8e0012d904b1624d01c7

    SHA1

    5646fc39037d20c763132334d4286e9bb4f8b8d1

    SHA256

    c2905bb3506d944d1fd90f4463eb1f9f1a6b48c022139d76df5efb61449d65d5

    SHA512

    63a7d572d039111281a38c8fe1a7188bbe7cdea5d7125c9452da074f26c864fbc46e22ad08cc223462f0323c453f72b9c1d55d1b1b0cdfa2737e8cb602d1f460

  • Anonymous-DexFile@0xc6af8000-0xc6b7b670

    Filesize

    525KB

    MD5

    fe5b1c1f91dcda3a524edc19dbcb2944

    SHA1

    ab64c2809ee4429062816f4332ab69303b18fb16

    SHA256

    4a71e25dfc10ada42835fc60e94838298496dd3cb9991cffbb7c64da7729f70b

    SHA512

    3776b2ce6d2cc38c687f3e7715a9efe35fd4703d1902d9ebfd8aca2d8899e020822c1f9a8251034b9dae77961798658fc2d834bfbde125b33c359c6a1b5ef8cf