Analysis

  • max time kernel
    128s
  • max time network
    11s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    20-04-2021 00:41

General

  • Target

    Property Details.pdf.bin.exe

  • Size

    379KB

  • MD5

    3618134640661e484c11406b7bae2aa7

  • SHA1

    55f2fcab1e76b94cfdf8537a3675a65ac764d338

  • SHA256

    4cc9fc3c6c06119543c1f09d6900c35303905b8d8e18ebc6d9d3d8f6a8ff6507

  • SHA512

    a4b30d04d26996aed6738908bec6f32da09e6dd2e1eee971544fe84091ef6faf1325283a58913f6db915d6ad6ba8ebf9177bf692eed7d13cabdf435e7215705b

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Money@123

Signatures

  • AgentTesla

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

  • Windows security bypass 2 TTPs
  • AgentTesla Payload 3 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
  • Looks for VMWare Tools registry key 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 14 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Property Details.pdf.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\Property Details.pdf.bin.exe"
    1⤵
    • Checks BIOS information in registry
    • Windows security modification
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2020
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Program Files\Common Files\System\AtxSQAJZhgKHQxShyHlJxWyLMVNzuWhgEuTVnDnOZTz\svchost.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:820
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Property Details.pdf.bin.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:968
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Program Files\Common Files\System\AtxSQAJZhgKHQxShyHlJxWyLMVNzuWhgEuTVnDnOZTz\svchost.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1156
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:596
      • C:\Windows\SysWOW64\timeout.exe
        timeout 1
        3⤵
        • Delays execution with timeout.exe
        PID:624
    • C:\Users\Admin\AppData\Local\Temp\Property Details.pdf.bin.exe
      "C:\Users\Admin\AppData\Local\Temp\Property Details.pdf.bin.exe"
      2⤵
        PID:1668
      • C:\Users\Admin\AppData\Local\Temp\Property Details.pdf.bin.exe
        "C:\Users\Admin\AppData\Local\Temp\Property Details.pdf.bin.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1624
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2020 -s 1548
        2⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:268

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Disabling Security Tools

    2
    T1089

    Modify Registry

    3
    T1112

    Virtualization/Sandbox Evasion

    2
    T1497

    Credential Access

    Credentials in Files

    2
    T1081

    Discovery

    Query Registry

    4
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    3
    T1082

    Peripheral Device Discovery

    1
    T1120

    Collection

    Data from Local System

    2
    T1005

    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_388a0259-6823-4164-a886-84776be6509b
      MD5

      7f79b990cb5ed648f9e583fe35527aa7

      SHA1

      71b177b48c8bd745ef02c2affad79ca222da7c33

      SHA256

      080ec69d3f2abac629a0bdc314f150ad42a9a1b0a031b1d5c7b5b80051c48683

      SHA512

      20926edf7f0b990da4bd8d7ba91bd8bf7b952b75080f687afa7197a91777604688303d38b4a0a7240b558c23f2e0cd927d3590765109f8be0551f5eb050eafda

    • 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_6fe5bd95-2cea-4aea-9c8c-dd67bac4295b
      MD5

      df44874327d79bd75e4264cb8dc01811

      SHA1

      1396b06debed65ea93c24998d244edebd3c0209d

      SHA256

      55de642c5c9e436ec01c57004dae797022442c3245daf7162d19a5585f221181

      SHA512

      95dc9298b8db059bbe746f67e6a7f8515781c7053cc60c01532e47623a996be7e1bd23d1bd8f5f2045adff27454f44930d503c15b695690088841cedbd2a06c3

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_8fc3711c-1993-4cf7-82e4-b2b0990ab1b7
      MD5

      354b8209f647a42e2ce36d8cf326cc92

      SHA1

      98c3117f797df69935f8b09fc9e95accfe3d8346

      SHA256

      feae405d288fdd38438f9d9b54f791f3ce3805f1bb88780da5aca402ad372239

      SHA512

      420be869b58e9a7a2c31f2550ac269df832935692a6431d455a10d9b426781e79d91e30ace2c465633b8a7ff2be1bf49734d8b99a390090dc4b36411d4391ff0

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_a64eefde-2ad8-46fe-b955-90196eab9bca
      MD5

      a70ee38af4bb2b5ed3eeb7cbd1a12fa3

      SHA1

      81dbaeae4b0f9e1adc0a1e3d6d76a12396498ba9

      SHA256

      dd2f41f92f19c3fe031bdf5da68ab06768e26762d0077b290cd0094df1d5d58d

      SHA512

      8c69a5300c7545c5c4b25a0594e6813b6b7a85b5f3ae7fc5464b4074fe6f50b2f49d31cacf19bc20a02bb8e237656f1b9b2a3f6a3953e3a8478ca2adc154e0e3

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_b7f4e719-a913-4c28-9936-751f98312b33
      MD5

      d89968acfbd0cd60b51df04860d99896

      SHA1

      b3c29916ccb81ce98f95bbf3aa8a73de16298b29

      SHA256

      1020cc7c929cd5a4e68ccb40353ca76f427df363f0d95e456eb79db039bdb2b9

      SHA512

      b0e886cce598371b59131fed1535e220c798691bad93ef9474ba440066f5a6bd77a60966604b7a5ff6298b2e200c9dd0c8f9f04aff208b2af423480ead4e8842

    • 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_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

      de220a2c575eb19097e503410d3918f0

      SHA1

      e4c5398475b75d60c6898549c1d47a434b89148a

      SHA256

      cc970e921348067234145937a26878800bed668795dbca8eb8654098efd155a6

      SHA512

      f2dc92a426b609524ed1a5fe512b0657854bd38c0b4fdbfe2996e9535764dbad41bf4b70cadf743f462f5850db05d3b9a5ad658d8ec7d7472df32c002f8b548b

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

      ec75ecc2836c541e64316bc29e2bc065

      SHA1

      20f54912e33ddee46ccccdfb69442f372fc46089

      SHA256

      c8b7856327a4fb43574a82c50d216dec6313b592b7c3545a4e38ed9b9b045062

      SHA512

      fc41db0dc4fb42b202eaf6590132b142491fbb43e0f9e1dd91d7519ead97311cdf06454231ec8a4a7ca36fa3597d392123befdf83fcfe7efa11fbc4cfb2a4fe5

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

      5420170a2c775f64d9682d42ad10d4c8

      SHA1

      585cfdb6d74ff3bc14bf1acdc756814e0661f52b

      SHA256

      84f17b816a3b13199c504697c771024b17b810f0eb3125369495a6caa8d832f8

      SHA512

      e2d86c64aed50ba90008b740d5b74cb9343e73b32ea3fe53c86e743517167ef0357e511a0ce76061f0d5271572f7f85e768a8280228288770a2eab5d8ac17590

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

      d4d2b04e15ea64c11ea13b28ba5135b5

      SHA1

      d6434d5e13cc50e53ccedfe03babaadefd0c0dab

      SHA256

      add16460d97a2116cb4e2f10c107f4da80094a380fe445a1acce522cce12a0ed

      SHA512

      f7d35c5055be7ee7745be691575876c33285e2f623bf17a073cf8dd215bf249bb2b40a3bcc1a13ea57449bf43954220eba8eb946d96ec6cbcda8dabedf9ecd1c

    • memory/268-146-0x0000000000CA0000-0x0000000000CA1000-memory.dmp
      Filesize

      4KB

    • memory/268-143-0x0000000000000000-mapping.dmp
    • memory/596-137-0x0000000000000000-mapping.dmp
    • memory/624-138-0x0000000000000000-mapping.dmp
    • memory/820-63-0x0000000000000000-mapping.dmp
    • memory/820-79-0x0000000004992000-0x0000000004993000-memory.dmp
      Filesize

      4KB

    • memory/820-82-0x0000000002600000-0x0000000002601000-memory.dmp
      Filesize

      4KB

    • memory/820-78-0x0000000004990000-0x0000000004991000-memory.dmp
      Filesize

      4KB

    • memory/820-65-0x0000000076281000-0x0000000076283000-memory.dmp
      Filesize

      8KB

    • memory/968-64-0x0000000000000000-mapping.dmp
    • memory/968-76-0x0000000004990000-0x0000000004991000-memory.dmp
      Filesize

      4KB

    • memory/968-80-0x0000000004992000-0x0000000004993000-memory.dmp
      Filesize

      4KB

    • memory/1156-103-0x00000000062C0000-0x00000000062C1000-memory.dmp
      Filesize

      4KB

    • memory/1156-81-0x00000000049D2000-0x00000000049D3000-memory.dmp
      Filesize

      4KB

    • memory/1156-126-0x0000000006350000-0x0000000006351000-memory.dmp
      Filesize

      4KB

    • memory/1156-127-0x000000007EF30000-0x000000007EF31000-memory.dmp
      Filesize

      4KB

    • memory/1156-110-0x0000000005650000-0x0000000005651000-memory.dmp
      Filesize

      4KB

    • memory/1156-70-0x0000000000EC0000-0x0000000000EC1000-memory.dmp
      Filesize

      4KB

    • memory/1156-73-0x0000000004A10000-0x0000000004A11000-memory.dmp
      Filesize

      4KB

    • memory/1156-90-0x0000000005690000-0x0000000005691000-memory.dmp
      Filesize

      4KB

    • memory/1156-66-0x0000000000000000-mapping.dmp
    • memory/1156-77-0x00000000049D0000-0x00000000049D1000-memory.dmp
      Filesize

      4KB

    • memory/1156-96-0x0000000005790000-0x0000000005791000-memory.dmp
      Filesize

      4KB

    • memory/1156-85-0x0000000004950000-0x0000000004951000-memory.dmp
      Filesize

      4KB

    • memory/1156-125-0x0000000006340000-0x0000000006341000-memory.dmp
      Filesize

      4KB

    • memory/1156-95-0x00000000056F0000-0x00000000056F1000-memory.dmp
      Filesize

      4KB

    • memory/1624-140-0x0000000000436F6E-mapping.dmp
    • memory/1624-139-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/1624-141-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/1624-145-0x0000000004B20000-0x0000000004B21000-memory.dmp
      Filesize

      4KB

    • memory/2020-61-0x0000000004820000-0x0000000004821000-memory.dmp
      Filesize

      4KB

    • memory/2020-62-0x0000000000600000-0x000000000069D000-memory.dmp
      Filesize

      628KB

    • memory/2020-59-0x00000000002E0000-0x00000000002E1000-memory.dmp
      Filesize

      4KB