Analysis

  • max time kernel
    103s
  • max time network
    56s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    27-07-2021 08:05

General

  • Target

    ABSA Bank_Payment Advice copy.doc

  • Size

    3.3MB

  • MD5

    dc27adc9ac30cc0de96a0babf896cc74

  • SHA1

    984fd4d264aad2432654aee42fefa1d2c7191081

  • SHA256

    1c70882051a5b725ee8ac98b24ad6e6a1b867dcad1cdb5acf82e84fe4f8cc109

  • SHA512

    cd38ba8a03d597f03278141fee445012aaa125105fbce21f4b00be697570a4505b24e31164d6ae9080720d2caa97e1b5f9b38ea0d9bb10d80407a508a9c62ba7

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.meyaargroup.com
  • Port:
    587
  • Username:
    info@meyaargroup.com
  • Password:
    Meyaar@123$

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • suricata: ET MALWARE Possible Windows executable sent when remote host claims to send a Text File
  • AgentTesla Payload 3 IoCs
  • CustAttr .NET packer 1 IoCs

    Detects CustAttr .NET packer in memory.

  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Office loads VBA resources, possible macro or embedded object present
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\ABSA Bank_Payment Advice copy.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1104
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2040
    • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
      "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
      1⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Launches Equation Editor
      • Suspicious use of WriteProcessMemory
      PID:1808
      • C:\Users\Admin\AppData\Roaming\68798.exe
        C:\Users\Admin\AppData\Roaming\68798.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1644
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\68798.exe"
          3⤵
          • Drops file in System32 directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1848
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\lvbgVm.exe"
          3⤵
          • Drops file in System32 directory
          PID:364
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lvbgVm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAE0B.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:1532
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\lvbgVm.exe"
          3⤵
          • Drops file in System32 directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1732
        • C:\Users\Admin\AppData\Roaming\68798.exe
          "C:\Users\Admin\AppData\Roaming\68798.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1992

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Exploitation for Client Execution

    1
    T1203

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_1602f747-c1a3-4345-8dec-4dcb8b1f72e5
      MD5

      02ff38ac870de39782aeee04d7b48231

      SHA1

      0390d39fa216c9b0ecdb38238304e518fb2b5095

      SHA256

      fbd66a9baf753db31b8de23f2d51b67f8676687503653103080c45b16f1dc876

      SHA512

      24a1ff76ee42ff7a5ea42843928c4df07b06178f7781cd840e1e086e88735d81506eb67259ff1e6ce5aaa7c5baea03886da265eb7e025ff4dc4c4b5f8cd3e341

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_2d686436-375c-4ee1-bd4a-9e44ccd248ba
      MD5

      75a8da7754349b38d64c87c938545b1b

      SHA1

      5c28c257d51f1c1587e29164cc03ea880c21b417

      SHA256

      bf08151c174b5d00c9dbc7907b2c6a01b4be76bfa3afce1e8bd98a04ad833c96

      SHA512

      798797bc74c56c874e9a5fdcb0157c04e37a1b3cce285ef064b01bceef8cec45f11a5198918c6c647220b62883606b5e12e3cca3ea369f3a66e69dea6e15f643

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_3211d820-4223-4c7c-b7e1-7fdb24a96758
      MD5

      d89968acfbd0cd60b51df04860d99896

      SHA1

      b3c29916ccb81ce98f95bbf3aa8a73de16298b29

      SHA256

      1020cc7c929cd5a4e68ccb40353ca76f427df363f0d95e456eb79db039bdb2b9

      SHA512

      b0e886cce598371b59131fed1535e220c798691bad93ef9474ba440066f5a6bd77a60966604b7a5ff6298b2e200c9dd0c8f9f04aff208b2af423480ead4e8842

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_390f49af-53da-4469-9765-502035522b06
      MD5

      354b8209f647a42e2ce36d8cf326cc92

      SHA1

      98c3117f797df69935f8b09fc9e95accfe3d8346

      SHA256

      feae405d288fdd38438f9d9b54f791f3ce3805f1bb88780da5aca402ad372239

      SHA512

      420be869b58e9a7a2c31f2550ac269df832935692a6431d455a10d9b426781e79d91e30ace2c465633b8a7ff2be1bf49734d8b99a390090dc4b36411d4391ff0

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_4375eeb7-a65d-43f1-a616-02c5ad6c5370
      MD5

      be4d72095faf84233ac17b94744f7084

      SHA1

      cc78ce5b9c57573bd214a8f423ee622b00ebb1ec

      SHA256

      b0d72c5c22e57913476ac8fc686a4593f137c6667d5094522c0a0685dabd7adc

      SHA512

      43856e9b1032b8690ceea810c931bed3655e9190414bb220fb6afc136f31b8335e07604dffb28405d4006f266a54cff424c527d29924b1b732c9647a3252b097

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_4f8a506d-b939-4ffc-92d3-f812cfb6501b
      MD5

      7f79b990cb5ed648f9e583fe35527aa7

      SHA1

      71b177b48c8bd745ef02c2affad79ca222da7c33

      SHA256

      080ec69d3f2abac629a0bdc314f150ad42a9a1b0a031b1d5c7b5b80051c48683

      SHA512

      20926edf7f0b990da4bd8d7ba91bd8bf7b952b75080f687afa7197a91777604688303d38b4a0a7240b558c23f2e0cd927d3590765109f8be0551f5eb050eafda

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_6fe5bd95-2cea-4aea-9c8c-dd67bac4295b
      MD5

      df44874327d79bd75e4264cb8dc01811

      SHA1

      1396b06debed65ea93c24998d244edebd3c0209d

      SHA256

      55de642c5c9e436ec01c57004dae797022442c3245daf7162d19a5585f221181

      SHA512

      95dc9298b8db059bbe746f67e6a7f8515781c7053cc60c01532e47623a996be7e1bd23d1bd8f5f2045adff27454f44930d503c15b695690088841cedbd2a06c3

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_7a7217a1-0ade-4224-a414-422e6ceb82cb
      MD5

      a70ee38af4bb2b5ed3eeb7cbd1a12fa3

      SHA1

      81dbaeae4b0f9e1adc0a1e3d6d76a12396498ba9

      SHA256

      dd2f41f92f19c3fe031bdf5da68ab06768e26762d0077b290cd0094df1d5d58d

      SHA512

      8c69a5300c7545c5c4b25a0594e6813b6b7a85b5f3ae7fc5464b4074fe6f50b2f49d31cacf19bc20a02bb8e237656f1b9b2a3f6a3953e3a8478ca2adc154e0e3

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_bc2fe8ee-69c0-48ce-8821-1fab80ab4eeb
      MD5

      597009ea0430a463753e0f5b1d1a249e

      SHA1

      4e38b8bb65ecbd5c9f0d3d8c47f7caba33de6c62

      SHA256

      3fd2a8217a845c43dbc0dc206c28be81d2687aa9ba62019d905aef10cfaec45d

      SHA512

      5d722fa908e64575b2497c60d142e182011a10c6ed33813b3b4796b3147ece1bc96938518b4c8911a1bac3b7560528ebe3e8e754c11015516d335df5d7c6871d

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_fa12b0a1-3d6a-4bab-a74a-253a75ca0598
      MD5

      5e3c7184a75d42dda1a83606a45001d8

      SHA1

      94ca15637721d88f30eb4b6220b805c5be0360ed

      SHA256

      8278033a65d1ff48be4d86e11f87930d187692f59f8bf2f0a9d170de285afb59

      SHA512

      fae99b6e9b106e0f1c30aa4082b25ae1ad643455c1295c2c16ad534e3e611b9b08492353ffe1af1cfdddc9b2b7c330747a64012c45e62b8f4a4982dcc214e05b

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_fd9bf4da-ec38-4847-85c5-d50f35796d4c
      MD5

      a725bb9fafcf91f3c6b7861a2bde6db2

      SHA1

      8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

      SHA256

      51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

      SHA512

      1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_fe80cd26-0cf7-4e38-9884-6dab53b04ca9
      MD5

      b6d38f250ccc9003dd70efd3b778117f

      SHA1

      d5a17c02cac698d4f0a4a9b7d71db2aa19e3f18a

      SHA256

      4de9d7b5ccab7b67ca8efc83084c7ee6e5e872b7216ed4683bc5da950bf41265

      SHA512

      67d8195836b7f280d3f9219fd0f58276342e55d5dfdd8a4c54355030d96685d73f1b2b6da0eb39322ec7c3a1d1c5ef06b52d22646cea30a96f822de1800d31e9

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
      MD5

      6dfbfdfa6882617d6f772bf46008feac

      SHA1

      21ef3463d9cfea980d50fd6753cb63e6873e32a8

      SHA256

      c0c50469317a83e79d0cd22715d4144938fb866b423e617d13061032f564c447

      SHA512

      265c161bea06e38de67c7bc357d9403d4eb216a73d35ac5e29c5de257022aabd27d4330db109611f0f3bb0cb154b9d953f65bfc16c91de52c065cd2323bc712e

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
      MD5

      747dacaf1ed1947fa8444e3bd7480189

      SHA1

      45ef3e8f7460992cead22019cc7dc8b08b914eaf

      SHA256

      4a3747222cb9ad0b0508f3bd1206871d600d9b6caf5a65bb70910737f5876efd

      SHA512

      bd6c28d6d7de72057c5a5071bc0734bb86340df18dd9951fa21ed6bbb5f88d4db927685fac22d24e6656d38071533ab55cba449a93e794a692895948ce623b9e

    • C:\Users\Admin\AppData\Local\Temp\tmpAE0B.tmp
      MD5

      d82dad338e412eee61d1716817492cc7

      SHA1

      f700fb04c768b5e64a7cb168e1dfa771d68abcd0

      SHA256

      4acdf7ab740b465ff2d424d57d9a04c1459c2b66de34cee895b166f6e0ab31ca

      SHA512

      0bec060480f1f98b23091967d89cdefef06df3f28bb46b5696d2402d44de8327b510f5ef2749073d70ee7a090181aaa1c707002546b90de06e7686154905383c

    • C:\Users\Admin\AppData\Roaming\68798.exe
      MD5

      52316fda37685484f30a9e9ab4aa7dae

      SHA1

      c0677360ea2701266a5fb1a43cd763a7dc18beeb

      SHA256

      8586940b285a92802ff9ca77ab7fb949de2a24784d4724dc18ce6d9c1ad6f187

      SHA512

      4eb8bb33fd87806bcc26f6b490031fbf97c9a24286c85594f83454c4cb406b1b5bcdd83d5f932e4c996ca788ae912356af131ff50360a9d31f8121b864478372

    • C:\Users\Admin\AppData\Roaming\68798.exe
      MD5

      52316fda37685484f30a9e9ab4aa7dae

      SHA1

      c0677360ea2701266a5fb1a43cd763a7dc18beeb

      SHA256

      8586940b285a92802ff9ca77ab7fb949de2a24784d4724dc18ce6d9c1ad6f187

      SHA512

      4eb8bb33fd87806bcc26f6b490031fbf97c9a24286c85594f83454c4cb406b1b5bcdd83d5f932e4c996ca788ae912356af131ff50360a9d31f8121b864478372

    • C:\Users\Admin\AppData\Roaming\68798.exe
      MD5

      52316fda37685484f30a9e9ab4aa7dae

      SHA1

      c0677360ea2701266a5fb1a43cd763a7dc18beeb

      SHA256

      8586940b285a92802ff9ca77ab7fb949de2a24784d4724dc18ce6d9c1ad6f187

      SHA512

      4eb8bb33fd87806bcc26f6b490031fbf97c9a24286c85594f83454c4cb406b1b5bcdd83d5f932e4c996ca788ae912356af131ff50360a9d31f8121b864478372

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
      MD5

      e098fa41e28b88e4827b8061dbd06b81

      SHA1

      148ff7225692b4dce0a00992f1bdfa9b62cde06e

      SHA256

      1278b98b45af64501e8e821260cf17560501da982c6e8a476894df7030abe07f

      SHA512

      eff4c844706585b36202daa3e84df2c0e7a6317d67064b0e3835fe80f25b72e8587b6b065e75e2eb1b5b23bade83b1ec1ceb57aa7945ec73ddce198b071c25da

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
      MD5

      e098fa41e28b88e4827b8061dbd06b81

      SHA1

      148ff7225692b4dce0a00992f1bdfa9b62cde06e

      SHA256

      1278b98b45af64501e8e821260cf17560501da982c6e8a476894df7030abe07f

      SHA512

      eff4c844706585b36202daa3e84df2c0e7a6317d67064b0e3835fe80f25b72e8587b6b065e75e2eb1b5b23bade83b1ec1ceb57aa7945ec73ddce198b071c25da

    • \Users\Admin\AppData\Roaming\68798.exe
      MD5

      52316fda37685484f30a9e9ab4aa7dae

      SHA1

      c0677360ea2701266a5fb1a43cd763a7dc18beeb

      SHA256

      8586940b285a92802ff9ca77ab7fb949de2a24784d4724dc18ce6d9c1ad6f187

      SHA512

      4eb8bb33fd87806bcc26f6b490031fbf97c9a24286c85594f83454c4cb406b1b5bcdd83d5f932e4c996ca788ae912356af131ff50360a9d31f8121b864478372

    • memory/364-101-0x0000000002090000-0x0000000002CDA000-memory.dmp
      Filesize

      12.3MB

    • memory/364-100-0x0000000002090000-0x0000000002CDA000-memory.dmp
      Filesize

      12.3MB

    • memory/364-79-0x0000000000000000-mapping.dmp
    • memory/1104-60-0x0000000072881000-0x0000000072884000-memory.dmp
      Filesize

      12KB

    • memory/1104-62-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1104-63-0x00000000753E1000-0x00000000753E3000-memory.dmp
      Filesize

      8KB

    • memory/1104-61-0x0000000070301000-0x0000000070303000-memory.dmp
      Filesize

      8KB

    • memory/1104-156-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1532-80-0x0000000000000000-mapping.dmp
    • memory/1644-66-0x0000000000000000-mapping.dmp
    • memory/1644-69-0x00000000002B0000-0x00000000002B1000-memory.dmp
      Filesize

      4KB

    • memory/1644-71-0x0000000004CD0000-0x0000000004CD1000-memory.dmp
      Filesize

      4KB

    • memory/1644-72-0x0000000000640000-0x000000000064B000-memory.dmp
      Filesize

      44KB

    • memory/1644-75-0x0000000005E40000-0x0000000005EC1000-memory.dmp
      Filesize

      516KB

    • memory/1644-76-0x0000000004570000-0x00000000045AD000-memory.dmp
      Filesize

      244KB

    • memory/1732-118-0x00000000062B0000-0x00000000062B1000-memory.dmp
      Filesize

      4KB

    • memory/1732-132-0x00000000063E0000-0x00000000063E1000-memory.dmp
      Filesize

      4KB

    • memory/1732-114-0x000000007EF30000-0x000000007EF31000-memory.dmp
      Filesize

      4KB

    • memory/1732-117-0x00000000057E0000-0x00000000057E1000-memory.dmp
      Filesize

      4KB

    • memory/1732-87-0x0000000000000000-mapping.dmp
    • memory/1732-125-0x00000000063B0000-0x00000000063B1000-memory.dmp
      Filesize

      4KB

    • memory/1732-111-0x0000000005740000-0x0000000005741000-memory.dmp
      Filesize

      4KB

    • memory/1732-148-0x0000000006700000-0x0000000006701000-memory.dmp
      Filesize

      4KB

    • memory/1732-147-0x00000000066F0000-0x00000000066F1000-memory.dmp
      Filesize

      4KB

    • memory/1732-104-0x0000000004952000-0x0000000004953000-memory.dmp
      Filesize

      4KB

    • memory/1732-103-0x0000000004950000-0x0000000004951000-memory.dmp
      Filesize

      4KB

    • memory/1848-107-0x0000000005300000-0x0000000005301000-memory.dmp
      Filesize

      4KB

    • memory/1848-77-0x0000000000000000-mapping.dmp
    • memory/1848-105-0x0000000002350000-0x0000000002351000-memory.dmp
      Filesize

      4KB

    • memory/1848-98-0x0000000002380000-0x0000000002381000-memory.dmp
      Filesize

      4KB

    • memory/1848-99-0x0000000002382000-0x0000000002383000-memory.dmp
      Filesize

      4KB

    • memory/1848-83-0x00000000009D0000-0x00000000009D1000-memory.dmp
      Filesize

      4KB

    • memory/1848-84-0x0000000004770000-0x0000000004771000-memory.dmp
      Filesize

      4KB

    • memory/1992-102-0x0000000004B60000-0x0000000004B61000-memory.dmp
      Filesize

      4KB

    • memory/1992-92-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/1992-88-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/1992-89-0x0000000000436D0E-mapping.dmp
    • memory/2040-74-0x000007FEFBEF1000-0x000007FEFBEF3000-memory.dmp
      Filesize

      8KB

    • memory/2040-73-0x0000000000000000-mapping.dmp