Analysis

  • max time kernel
    91s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/02/2024, 02:24

General

  • Target

    purchase order.rar

  • Size

    634KB

  • MD5

    14f81dd4f8d52e284d3a5d17f0c3cbae

  • SHA1

    ad5c1e31f9a94d4a48d6f398a823da525517c84c

  • SHA256

    d13bcc852f97c7ecfb1106741051a7a24657a73cb32d717cbda8036f5acd1bb1

  • SHA512

    4f8e9e0ffcf9e85f2d607c048ad38773804da63e9d4f38c621d825a2074c5716ca7b6f6ea1ac5feba6a04c46f76daff4c3fc2db422a0a904990c0519f70d0cba

  • SSDEEP

    12288:GQgh82HkGs4RDCx9exTMYv6KPhOu+C1B8PmBWeAAy0HvJr5:HgTHk34R+9IMYv1qC1B+mUZA1J9

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.showpiece.trillennium.biz
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    L+D+{64UN$~{

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c "C:\Users\Admin\AppData\Local\Temp\purchase order.rar"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4348
    • C:\Program Files\7-Zip\7zFM.exe
      "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\purchase order.rar"
      2⤵
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:2948
  • C:\Users\Admin\Desktop\purchase order..exe
    "C:\Users\Admin\Desktop\purchase order..exe"
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4092
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\srYxoGRtSGIQ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:636
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\srYxoGRtSGIQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp747F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:5080
    • C:\Users\Admin\Desktop\purchase order..exe
      "C:\Users\Admin\Desktop\purchase order..exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4736

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\purchase order..exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ff2x4cup.tqk.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp747F.tmp

    Filesize

    1KB

    MD5

    68ebf758c9e83ae2a600ae0e4149883d

    SHA1

    f33adf11f2b0194711479c8d86fc19c886273148

    SHA256

    6caad5a6ac71ebd5c9a83dc494d48e361a622d32efcda29fba44957029cc6834

    SHA512

    ac454bb503c87c50836056289728634be18a28fb4d7581cf11d45d6f8ad5e3300d092c7fbf474f7c3364842725b6017d058edc4834ad97ce1d884d7c02166a62

  • C:\Users\Admin\Desktop\purchase order..exe

    Filesize

    664KB

    MD5

    bd246f0a25127adb475f18bffe7fa32f

    SHA1

    7731f2951049985bec9bc25e98a1dd1685c8738b

    SHA256

    5343d3596434a17adf897e320990027e8f9dad7e6e8c771ee72134f98e4749a8

    SHA512

    4c3822da86c6991685bf4096e093c58a16cfa027a23f26ab17ecc5a7d339c1501d52fc5daf2820f46593a718d1ebd34628a97548ef1bd27a51b4e034d66887bf

  • memory/636-62-0x0000000007620000-0x000000000763A000-memory.dmp

    Filesize

    104KB

  • memory/636-63-0x0000000007690000-0x000000000769A000-memory.dmp

    Filesize

    40KB

  • memory/636-73-0x0000000074CA0000-0x0000000075450000-memory.dmp

    Filesize

    7.7MB

  • memory/636-70-0x0000000007940000-0x0000000007948000-memory.dmp

    Filesize

    32KB

  • memory/636-69-0x0000000007960000-0x000000000797A000-memory.dmp

    Filesize

    104KB

  • memory/636-68-0x0000000007860000-0x0000000007874000-memory.dmp

    Filesize

    80KB

  • memory/636-67-0x0000000007850000-0x000000000785E000-memory.dmp

    Filesize

    56KB

  • memory/636-65-0x0000000007820000-0x0000000007831000-memory.dmp

    Filesize

    68KB

  • memory/636-19-0x0000000004D20000-0x0000000004D56000-memory.dmp

    Filesize

    216KB

  • memory/636-20-0x0000000074CA0000-0x0000000075450000-memory.dmp

    Filesize

    7.7MB

  • memory/636-21-0x0000000004D60000-0x0000000004D70000-memory.dmp

    Filesize

    64KB

  • memory/636-64-0x00000000078A0000-0x0000000007936000-memory.dmp

    Filesize

    600KB

  • memory/636-23-0x00000000053A0000-0x00000000059C8000-memory.dmp

    Filesize

    6.2MB

  • memory/636-46-0x0000000004D60000-0x0000000004D70000-memory.dmp

    Filesize

    64KB

  • memory/636-61-0x0000000007C80000-0x00000000082FA000-memory.dmp

    Filesize

    6.5MB

  • memory/636-28-0x0000000005330000-0x0000000005352000-memory.dmp

    Filesize

    136KB

  • memory/636-60-0x0000000007550000-0x00000000075F3000-memory.dmp

    Filesize

    652KB

  • memory/636-48-0x00000000068F0000-0x0000000006922000-memory.dmp

    Filesize

    200KB

  • memory/636-59-0x00000000068A0000-0x00000000068BE000-memory.dmp

    Filesize

    120KB

  • memory/636-49-0x0000000070930000-0x000000007097C000-memory.dmp

    Filesize

    304KB

  • memory/636-43-0x0000000005EB0000-0x0000000006204000-memory.dmp

    Filesize

    3.3MB

  • memory/636-47-0x000000007F420000-0x000000007F430000-memory.dmp

    Filesize

    64KB

  • memory/636-37-0x0000000005C00000-0x0000000005C66000-memory.dmp

    Filesize

    408KB

  • memory/636-44-0x0000000006310000-0x000000000632E000-memory.dmp

    Filesize

    120KB

  • memory/636-45-0x0000000006680000-0x00000000066CC000-memory.dmp

    Filesize

    304KB

  • memory/4092-7-0x0000000004F20000-0x0000000004FB2000-memory.dmp

    Filesize

    584KB

  • memory/4092-12-0x0000000005170000-0x000000000517E000-memory.dmp

    Filesize

    56KB

  • memory/4092-9-0x0000000004EF0000-0x0000000004EFA000-memory.dmp

    Filesize

    40KB

  • memory/4092-4-0x0000000074CA0000-0x0000000075450000-memory.dmp

    Filesize

    7.7MB

  • memory/4092-10-0x0000000005130000-0x0000000005144000-memory.dmp

    Filesize

    80KB

  • memory/4092-29-0x0000000074CA0000-0x0000000075450000-memory.dmp

    Filesize

    7.7MB

  • memory/4092-6-0x0000000005430000-0x00000000059D4000-memory.dmp

    Filesize

    5.6MB

  • memory/4092-5-0x0000000000580000-0x000000000062C000-memory.dmp

    Filesize

    688KB

  • memory/4092-11-0x0000000005160000-0x000000000516A000-memory.dmp

    Filesize

    40KB

  • memory/4092-8-0x0000000005180000-0x0000000005190000-memory.dmp

    Filesize

    64KB

  • memory/4092-14-0x0000000008DF0000-0x0000000008E8C000-memory.dmp

    Filesize

    624KB

  • memory/4092-13-0x0000000006750000-0x00000000067D8000-memory.dmp

    Filesize

    544KB

  • memory/4736-66-0x0000000007140000-0x0000000007190000-memory.dmp

    Filesize

    320KB

  • memory/4736-38-0x0000000005850000-0x0000000005860000-memory.dmp

    Filesize

    64KB

  • memory/4736-24-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/4736-30-0x0000000074CA0000-0x0000000075450000-memory.dmp

    Filesize

    7.7MB

  • memory/4736-31-0x0000000005AC0000-0x0000000005B26000-memory.dmp

    Filesize

    408KB

  • memory/4736-74-0x0000000074CA0000-0x0000000075450000-memory.dmp

    Filesize

    7.7MB

  • memory/4736-75-0x0000000005850000-0x0000000005860000-memory.dmp

    Filesize

    64KB