Analysis

  • max time kernel
    101s
  • max time network
    60s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    26-11-2020 06:52

General

  • Target

    Statement Of Account.exe

  • Size

    160KB

  • MD5

    e6f5720c61791304ad99987695c07d81

  • SHA1

    910c9f05f590203d9662140ebd2ee323ff937367

  • SHA256

    2d2996c0344c2ed157f9affb6468c803dc196b519574c945c8fe40e445418030

  • SHA512

    9809d2b13d982600782428a6efa516ab530054d81ddc5055f7365353f2530e588b1d19cee12021cbc52ddd4521865aeb194d682c630f3a9abd448af9c53320e9

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    new.surelogs@yandex.com
  • Password:
    lololo12345

Signatures

  • AgentTesla

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Windows security bypass 2 TTPs
  • AgentTesla Payload 4 IoCs
  • Drops startup file 2 IoCs
  • Windows security modification 2 TTPs 9 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Statement Of Account.exe
    "C:\Users\Admin\AppData\Local\Temp\Statement Of Account.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops startup file
    • Windows security modification
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1084
    • C:\Windows\SysWOW64\timeout.exe
      timeout 4
      2⤵
      • Delays execution with timeout.exe
      PID:1820
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Statement Of Account.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:388
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Statement Of Account.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:268
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Statement Of Account.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1348
    • 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\Statement Of Account.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1056
    • C:\Users\Admin\AppData\Local\Temp\Statement Of Account.exe
      "C:\Users\Admin\AppData\Local\Temp\Statement Of Account.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2040

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

5
T1112

Disabling Security Tools

3
T1089

Discovery

System Information Discovery

1
T1082

Command and Control

Web Service

1
T1102

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_022aece4-927f-42c1-9298-e471b2696ece
    MD5

    354b8209f647a42e2ce36d8cf326cc92

    SHA1

    98c3117f797df69935f8b09fc9e95accfe3d8346

    SHA256

    feae405d288fdd38438f9d9b54f791f3ce3805f1bb88780da5aca402ad372239

    SHA512

    420be869b58e9a7a2c31f2550ac269df832935692a6431d455a10d9b426781e79d91e30ace2c465633b8a7ff2be1bf49734d8b99a390090dc4b36411d4391ff0

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_3bf4f350-86fe-486e-8b87-41ab96d0ad9c
    MD5

    b6d38f250ccc9003dd70efd3b778117f

    SHA1

    d5a17c02cac698d4f0a4a9b7d71db2aa19e3f18a

    SHA256

    4de9d7b5ccab7b67ca8efc83084c7ee6e5e872b7216ed4683bc5da950bf41265

    SHA512

    67d8195836b7f280d3f9219fd0f58276342e55d5dfdd8a4c54355030d96685d73f1b2b6da0eb39322ec7c3a1d1c5ef06b52d22646cea30a96f822de1800d31e9

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_4408bb97-19ee-4815-b02c-5a0939dddad8
    MD5

    df44874327d79bd75e4264cb8dc01811

    SHA1

    1396b06debed65ea93c24998d244edebd3c0209d

    SHA256

    55de642c5c9e436ec01c57004dae797022442c3245daf7162d19a5585f221181

    SHA512

    95dc9298b8db059bbe746f67e6a7f8515781c7053cc60c01532e47623a996be7e1bd23d1bd8f5f2045adff27454f44930d503c15b695690088841cedbd2a06c3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_644b5728-e9b5-45ab-9104-7136ec814422
    MD5

    be4d72095faf84233ac17b94744f7084

    SHA1

    cc78ce5b9c57573bd214a8f423ee622b00ebb1ec

    SHA256

    b0d72c5c22e57913476ac8fc686a4593f137c6667d5094522c0a0685dabd7adc

    SHA512

    43856e9b1032b8690ceea810c931bed3655e9190414bb220fb6afc136f31b8335e07604dffb28405d4006f266a54cff424c527d29924b1b732c9647a3252b097

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_6532a425-51ae-4577-837f-c6e09d9fcfcf
    MD5

    75a8da7754349b38d64c87c938545b1b

    SHA1

    5c28c257d51f1c1587e29164cc03ea880c21b417

    SHA256

    bf08151c174b5d00c9dbc7907b2c6a01b4be76bfa3afce1e8bd98a04ad833c96

    SHA512

    798797bc74c56c874e9a5fdcb0157c04e37a1b3cce285ef064b01bceef8cec45f11a5198918c6c647220b62883606b5e12e3cca3ea369f3a66e69dea6e15f643

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_69670b6c-d49a-42a9-993a-10d18807f7c6
    MD5

    5e3c7184a75d42dda1a83606a45001d8

    SHA1

    94ca15637721d88f30eb4b6220b805c5be0360ed

    SHA256

    8278033a65d1ff48be4d86e11f87930d187692f59f8bf2f0a9d170de285afb59

    SHA512

    fae99b6e9b106e0f1c30aa4082b25ae1ad643455c1295c2c16ad534e3e611b9b08492353ffe1af1cfdddc9b2b7c330747a64012c45e62b8f4a4982dcc214e05b

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_750dd9bc-66a7-4e64-ba09-1c42bbd92213
    MD5

    d89968acfbd0cd60b51df04860d99896

    SHA1

    b3c29916ccb81ce98f95bbf3aa8a73de16298b29

    SHA256

    1020cc7c929cd5a4e68ccb40353ca76f427df363f0d95e456eb79db039bdb2b9

    SHA512

    b0e886cce598371b59131fed1535e220c798691bad93ef9474ba440066f5a6bd77a60966604b7a5ff6298b2e200c9dd0c8f9f04aff208b2af423480ead4e8842

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_7f45a795-9723-4ae3-b7ea-79ea7f92b87a
    MD5

    a725bb9fafcf91f3c6b7861a2bde6db2

    SHA1

    8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

    SHA256

    51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

    SHA512

    1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_7f45a795-9723-4ae3-b7ea-79ea7f92b87a
    MD5

    a725bb9fafcf91f3c6b7861a2bde6db2

    SHA1

    8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

    SHA256

    51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

    SHA512

    1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_7f45a795-9723-4ae3-b7ea-79ea7f92b87a
    MD5

    a725bb9fafcf91f3c6b7861a2bde6db2

    SHA1

    8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

    SHA256

    51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

    SHA512

    1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_a85ad308-ffcd-457f-ba69-8825db4fa9ec
    MD5

    a70ee38af4bb2b5ed3eeb7cbd1a12fa3

    SHA1

    81dbaeae4b0f9e1adc0a1e3d6d76a12396498ba9

    SHA256

    dd2f41f92f19c3fe031bdf5da68ab06768e26762d0077b290cd0094df1d5d58d

    SHA512

    8c69a5300c7545c5c4b25a0594e6813b6b7a85b5f3ae7fc5464b4074fe6f50b2f49d31cacf19bc20a02bb8e237656f1b9b2a3f6a3953e3a8478ca2adc154e0e3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_aacd219d-c7ba-43ff-a67c-9ddc2f632d63
    MD5

    597009ea0430a463753e0f5b1d1a249e

    SHA1

    4e38b8bb65ecbd5c9f0d3d8c47f7caba33de6c62

    SHA256

    3fd2a8217a845c43dbc0dc206c28be81d2687aa9ba62019d905aef10cfaec45d

    SHA512

    5d722fa908e64575b2497c60d142e182011a10c6ed33813b3b4796b3147ece1bc96938518b4c8911a1bac3b7560528ebe3e8e754c11015516d335df5d7c6871d

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_e9f9468a-8cbd-4472-b808-e8b3772f4134
    MD5

    02ff38ac870de39782aeee04d7b48231

    SHA1

    0390d39fa216c9b0ecdb38238304e518fb2b5095

    SHA256

    fbd66a9baf753db31b8de23f2d51b67f8676687503653103080c45b16f1dc876

    SHA512

    24a1ff76ee42ff7a5ea42843928c4df07b06178f7781cd840e1e086e88735d81506eb67259ff1e6ce5aaa7c5baea03886da265eb7e025ff4dc4c4b5f8cd3e341

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_f7be81d2-fa2d-4e81-bf52-c580106d82fc
    MD5

    7f79b990cb5ed648f9e583fe35527aa7

    SHA1

    71b177b48c8bd745ef02c2affad79ca222da7c33

    SHA256

    080ec69d3f2abac629a0bdc314f150ad42a9a1b0a031b1d5c7b5b80051c48683

    SHA512

    20926edf7f0b990da4bd8d7ba91bd8bf7b952b75080f687afa7197a91777604688303d38b4a0a7240b558c23f2e0cd927d3590765109f8be0551f5eb050eafda

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

    d88d5d7c44f4b062cdf984773f851040

    SHA1

    763ed9fb07e42cdf00f8509f08325b588d507c07

    SHA256

    1bf44795df794d81bc7abd37e8f0a7867ff1b503efd3f9b1a7a7a66a1340ce51

    SHA512

    9e68432794a1e655f66796f5734f110efdf10b28708ba00c0abb1818b31ea447cc650ce4b76997bcecac82a334a037d05d242f7cb2b0702e2f048204ab0b7f41

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

    bc42c116618791ea40137f03622733cb

    SHA1

    ebfeb622aa329f7dc43a955a58d06117fb36e7a3

    SHA256

    64b123c58beebc0e8f02ed08ea1686a15e16b32ee3ed79482dcb22b8fb508916

    SHA512

    86e2f03f9f8ad6c0b35a651906ee1cdfac0b249996814076322a457a1bfb1b7d6b8a46269855f4f3b14c9957a9fd3de14bcabe3a2dc4b5219b4a7a5262c60aae

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

    3e75027fb05866b5648236156090e974

    SHA1

    4a3b220d3613b592ee96ca73e3ef1ed6f354ec1c

    SHA256

    f74afe195e71baa79d3a0958cac4c648fce70f1d591c72c70a5bf5e69c726e21

    SHA512

    e33446a8ad5436d3e6a111d810e869d281430c3883227aac1ff6593d116ebef8137357494ad32755d7c48410be3221a34e777918748b4c298f38657a79334456

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

    3e75027fb05866b5648236156090e974

    SHA1

    4a3b220d3613b592ee96ca73e3ef1ed6f354ec1c

    SHA256

    f74afe195e71baa79d3a0958cac4c648fce70f1d591c72c70a5bf5e69c726e21

    SHA512

    e33446a8ad5436d3e6a111d810e869d281430c3883227aac1ff6593d116ebef8137357494ad32755d7c48410be3221a34e777918748b4c298f38657a79334456

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

    5dcb7a2d44e3d618f5336aed9dd86224

    SHA1

    cc92ad7b4f1aad17ed33cbcd2a9c63765dd32fb8

    SHA256

    b95a881069098f9272bedab1009a1925cd84c472bb7bc80b0de885f36c7965ed

    SHA512

    b47e58982aacd9b13f2747d5765db6991f66ae02605031d7852c804889258316fbc4f0b3fc0e461c43be725027173759a1fe3d19c755d40aeeb20670cb0e0cb7

  • memory/268-38-0x0000000005690000-0x0000000005691000-memory.dmp
    Filesize

    4KB

  • memory/268-10-0x0000000074840000-0x0000000074F2E000-memory.dmp
    Filesize

    6.9MB

  • memory/268-5-0x0000000000000000-mapping.dmp
  • memory/268-74-0x0000000006350000-0x0000000006351000-memory.dmp
    Filesize

    4KB

  • memory/268-43-0x00000000056F0000-0x00000000056F1000-memory.dmp
    Filesize

    4KB

  • memory/268-44-0x0000000005790000-0x0000000005791000-memory.dmp
    Filesize

    4KB

  • memory/268-51-0x00000000062C0000-0x00000000062C1000-memory.dmp
    Filesize

    4KB

  • memory/268-73-0x0000000006340000-0x0000000006341000-memory.dmp
    Filesize

    4KB

  • memory/268-58-0x0000000005650000-0x0000000005651000-memory.dmp
    Filesize

    4KB

  • memory/388-13-0x00000000048C0000-0x00000000048C1000-memory.dmp
    Filesize

    4KB

  • memory/388-4-0x0000000000000000-mapping.dmp
  • memory/388-8-0x0000000074840000-0x0000000074F2E000-memory.dmp
    Filesize

    6.9MB

  • memory/388-11-0x0000000000F00000-0x0000000000F01000-memory.dmp
    Filesize

    4KB

  • memory/1056-7-0x0000000000000000-mapping.dmp
  • memory/1056-15-0x0000000074840000-0x0000000074F2E000-memory.dmp
    Filesize

    6.9MB

  • memory/1084-1-0x0000000000940000-0x0000000000941000-memory.dmp
    Filesize

    4KB

  • memory/1084-0-0x0000000074840000-0x0000000074F2E000-memory.dmp
    Filesize

    6.9MB

  • memory/1084-3-0x0000000007C50000-0x0000000007D92000-memory.dmp
    Filesize

    1.3MB

  • memory/1348-25-0x0000000004910000-0x0000000004911000-memory.dmp
    Filesize

    4KB

  • memory/1348-14-0x0000000074840000-0x0000000074F2E000-memory.dmp
    Filesize

    6.9MB

  • memory/1348-21-0x0000000002790000-0x0000000002791000-memory.dmp
    Filesize

    4KB

  • memory/1348-6-0x0000000000000000-mapping.dmp
  • memory/1820-2-0x0000000000000000-mapping.dmp
  • memory/2040-30-0x00000000004375FE-mapping.dmp
  • memory/2040-33-0x0000000074840000-0x0000000074F2E000-memory.dmp
    Filesize

    6.9MB

  • memory/2040-29-0x0000000000400000-0x000000000047E000-memory.dmp
    Filesize

    504KB

  • memory/2040-32-0x0000000000400000-0x000000000047E000-memory.dmp
    Filesize

    504KB

  • memory/2040-31-0x0000000000400000-0x000000000047E000-memory.dmp
    Filesize

    504KB