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Analysis

  • max time kernel
    510s
  • max time network
    513s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/03/2023, 13:43

General

  • Target

    Kopia platnosci Bank Pekao-6100046554300060012.exe

  • Size

    501KB

  • MD5

    26a08f0f611ff71679873104dbea4d39

  • SHA1

    a76c3a9ac264878f0d715e81820b5edaa3c621a3

  • SHA256

    5b0cb936865587b7d9fa14900e6ba7710d145872b77ac57570b3521c10191cda

  • SHA512

    51bf94b0d41216f02fe776c939561eee028de0bdfa33f2777947ff386e62f8f09363f83efae786124a8539b8b1e9fe2893a37f4d32f2994f5b5602f6f97528f0

  • SSDEEP

    6144:mclAYP4QmP2qYmWCYyB9QSn8qq13w3CpjGDiSzdrnFvsHLZBqJ1Si82EOQis:b3S63u1nFvsHLZi1SiREX

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.1und1.de
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    xwwwbm1919

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Kopia platnosci Bank Pekao-6100046554300060012.exe
    "C:\Users\Admin\AppData\Local\Temp\Kopia platnosci Bank Pekao-6100046554300060012.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1060
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2288
    • C:\Users\Admin\AppData\Local\Temp\Kopia platnosci Bank Pekao-6100046554300060012.exe
      "C:\Users\Admin\AppData\Local\Temp\Kopia platnosci Bank Pekao-6100046554300060012.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1816

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Kopia platnosci Bank Pekao-6100046554300060012.exe.log

    Filesize

    1KB

    MD5

    3a9188331a78f1dbce606db64b841fcb

    SHA1

    8e2c99b7c477d06591a856a4ea3e1e214719eee8

    SHA256

    db4137e258a0f6159fda559a5f6dd2704be0582c3f0586f65040c7ad1eb68451

    SHA512

    d1a994610a045d89d5d306866c24ae56bf16555414b8f63f632552568e67b5586f26d5a17a1f0a55ada376730298e6d856e9161828d4eae9decfa4e015e0e90a

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_aaj4hlnn.zbi.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1060-133-0x0000000000E50000-0x0000000000ED4000-memory.dmp

    Filesize

    528KB

  • memory/1060-155-0x0000000005900000-0x0000000005910000-memory.dmp

    Filesize

    64KB

  • memory/1060-135-0x0000000006D60000-0x0000000006D82000-memory.dmp

    Filesize

    136KB

  • memory/1060-134-0x0000000005900000-0x0000000005910000-memory.dmp

    Filesize

    64KB

  • memory/1816-177-0x00000000053C0000-0x00000000053D0000-memory.dmp

    Filesize

    64KB

  • memory/1816-176-0x00000000068D0000-0x000000000696C000-memory.dmp

    Filesize

    624KB

  • memory/1816-169-0x0000000006770000-0x00000000067C0000-memory.dmp

    Filesize

    320KB

  • memory/1816-168-0x0000000006550000-0x000000000655A000-memory.dmp

    Filesize

    40KB

  • memory/1816-167-0x0000000006570000-0x0000000006602000-memory.dmp

    Filesize

    584KB

  • memory/1816-166-0x00000000053C0000-0x00000000053D0000-memory.dmp

    Filesize

    64KB

  • memory/1816-165-0x0000000005AC0000-0x0000000006064000-memory.dmp

    Filesize

    5.6MB

  • memory/1816-162-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2288-140-0x0000000006020000-0x0000000006086000-memory.dmp

    Filesize

    408KB

  • memory/2288-156-0x0000000005370000-0x0000000005380000-memory.dmp

    Filesize

    64KB

  • memory/2288-157-0x0000000005370000-0x0000000005380000-memory.dmp

    Filesize

    64KB

  • memory/2288-158-0x0000000005370000-0x0000000005380000-memory.dmp

    Filesize

    64KB

  • memory/2288-154-0x0000000005370000-0x0000000005380000-memory.dmp

    Filesize

    64KB

  • memory/2288-153-0x0000000006E60000-0x0000000006E7A000-memory.dmp

    Filesize

    104KB

  • memory/2288-152-0x0000000007FD0000-0x000000000864A000-memory.dmp

    Filesize

    6.5MB

  • memory/2288-151-0x0000000006980000-0x000000000699E000-memory.dmp

    Filesize

    120KB

  • memory/2288-141-0x0000000006280000-0x00000000062E6000-memory.dmp

    Filesize

    408KB

  • memory/2288-139-0x0000000005370000-0x0000000005380000-memory.dmp

    Filesize

    64KB

  • memory/2288-138-0x0000000005370000-0x0000000005380000-memory.dmp

    Filesize

    64KB

  • memory/2288-137-0x00000000059F0000-0x0000000006018000-memory.dmp

    Filesize

    6.2MB

  • memory/2288-136-0x0000000005380000-0x00000000053B6000-memory.dmp

    Filesize

    216KB