Analysis

  • max time kernel
    120s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-04-2024 01:07

General

  • Target

    1451b7450f81b2642b3621b32c24b99c72619c4c9c35747b794eb111262cf3a8.exe

  • Size

    823KB

  • MD5

    48c4494e4bff82d39ad2ac8173c65bfb

  • SHA1

    1f7fab7375e94b25dd32bc60fc40a76f43ca8862

  • SHA256

    1451b7450f81b2642b3621b32c24b99c72619c4c9c35747b794eb111262cf3a8

  • SHA512

    0cf2a5d4eddab765e7f8b1a0e56bc51a190b92fdc524ce6584ca64e834007260bd1cb3fa3380c5dea25838c1673dc5fac5e7e3879dbdcb51caf70c78cd5dde86

  • SSDEEP

    24576:52PjKr5BNDgk95z+mdcxk3IzWTaKHfhnlMh:kk5BNskumdcK3L//Mh

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Looks up external IP address via web service 1 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.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1451b7450f81b2642b3621b32c24b99c72619c4c9c35747b794eb111262cf3a8.exe
    "C:\Users\Admin\AppData\Local\Temp\1451b7450f81b2642b3621b32c24b99c72619c4c9c35747b794eb111262cf3a8.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3748
    • 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\1451b7450f81b2642b3621b32c24b99c72619c4c9c35747b794eb111262cf3a8.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3712
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fbWXASX.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1536
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fbWXASX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5B6E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4016
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4896

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    2KB

    MD5

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
    Filesize

    18KB

    MD5

    1e8293a5d9aee54dc390b9855ff8943e

    SHA1

    68efb5799f6dd5a5d8d26b08376c43629110663c

    SHA256

    203ee90053b45c33d0a75b180d665dd1ceecf76b808c68713774e2aee3992f67

    SHA512

    4f61da07569ba50156e4b06761d08b6b00ee8bd464c213e763f2e7e8c8965fb55f9f43c3cba63750d2c0a9210c7d7d49e4d25d10328c82f8fbfa7d089e182839

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_muy2msyv.i1k.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp5B6E.tmp
    Filesize

    1KB

    MD5

    e658db68da716b246018d1f818725f03

    SHA1

    8a08c117d8c3cc1fd49ffbd333e1969671378ad0

    SHA256

    978603e79d6e4fde65c7d3e802467e3a333dcb08b91a5bdf812a0e5f1001af58

    SHA512

    7e0ebe0089f2f63febd6491962ef26eb9cd50120f69a7442c51444ef9505a493911115920722d74cb25562a7b9eb332254d813453a3305f2ffae782c8a49d14e

  • memory/1536-87-0x0000000074450000-0x0000000074C00000-memory.dmp
    Filesize

    7.7MB

  • memory/1536-64-0x0000000070C30000-0x0000000070C7C000-memory.dmp
    Filesize

    304KB

  • memory/1536-19-0x0000000074450000-0x0000000074C00000-memory.dmp
    Filesize

    7.7MB

  • memory/1536-24-0x0000000002100000-0x0000000002110000-memory.dmp
    Filesize

    64KB

  • memory/3712-15-0x0000000005860000-0x0000000005E88000-memory.dmp
    Filesize

    6.2MB

  • memory/3712-61-0x0000000007980000-0x0000000007A23000-memory.dmp
    Filesize

    652KB

  • memory/3712-14-0x00000000051D0000-0x0000000005206000-memory.dmp
    Filesize

    216KB

  • memory/3712-86-0x0000000074450000-0x0000000074C00000-memory.dmp
    Filesize

    7.7MB

  • memory/3712-16-0x0000000074450000-0x0000000074C00000-memory.dmp
    Filesize

    7.7MB

  • memory/3712-18-0x0000000005220000-0x0000000005230000-memory.dmp
    Filesize

    64KB

  • memory/3712-17-0x0000000005220000-0x0000000005230000-memory.dmp
    Filesize

    64KB

  • memory/3712-21-0x00000000060A0000-0x0000000006106000-memory.dmp
    Filesize

    408KB

  • memory/3712-80-0x0000000007DD0000-0x0000000007DD8000-memory.dmp
    Filesize

    32KB

  • memory/3712-79-0x0000000007DF0000-0x0000000007E0A000-memory.dmp
    Filesize

    104KB

  • memory/3712-22-0x0000000006110000-0x0000000006176000-memory.dmp
    Filesize

    408KB

  • memory/3712-78-0x0000000007CF0000-0x0000000007D04000-memory.dmp
    Filesize

    80KB

  • memory/3712-20-0x0000000006000000-0x0000000006022000-memory.dmp
    Filesize

    136KB

  • memory/3712-77-0x0000000007CE0000-0x0000000007CEE000-memory.dmp
    Filesize

    56KB

  • memory/3712-43-0x0000000006280000-0x00000000065D4000-memory.dmp
    Filesize

    3.3MB

  • memory/3712-76-0x0000000007CB0000-0x0000000007CC1000-memory.dmp
    Filesize

    68KB

  • memory/3712-75-0x0000000007D30000-0x0000000007DC6000-memory.dmp
    Filesize

    600KB

  • memory/3712-47-0x0000000006790000-0x00000000067AE000-memory.dmp
    Filesize

    120KB

  • memory/3712-48-0x0000000006820000-0x000000000686C000-memory.dmp
    Filesize

    304KB

  • memory/3712-74-0x0000000007B20000-0x0000000007B2A000-memory.dmp
    Filesize

    40KB

  • memory/3712-60-0x0000000007750000-0x000000000776E000-memory.dmp
    Filesize

    120KB

  • memory/3712-50-0x0000000070C30000-0x0000000070C7C000-memory.dmp
    Filesize

    304KB

  • memory/3712-49-0x0000000007710000-0x0000000007742000-memory.dmp
    Filesize

    200KB

  • memory/3712-62-0x0000000008100000-0x000000000877A000-memory.dmp
    Filesize

    6.5MB

  • memory/3712-63-0x0000000007AB0000-0x0000000007ACA000-memory.dmp
    Filesize

    104KB

  • memory/3748-2-0x0000000005AB0000-0x0000000006054000-memory.dmp
    Filesize

    5.6MB

  • memory/3748-9-0x000000000C4F0000-0x000000000C58C000-memory.dmp
    Filesize

    624KB

  • memory/3748-46-0x0000000074450000-0x0000000074C00000-memory.dmp
    Filesize

    7.7MB

  • memory/3748-5-0x00000000054E0000-0x00000000054EA000-memory.dmp
    Filesize

    40KB

  • memory/3748-6-0x0000000005A80000-0x0000000005AA0000-memory.dmp
    Filesize

    128KB

  • memory/3748-7-0x0000000006670000-0x0000000006684000-memory.dmp
    Filesize

    80KB

  • memory/3748-8-0x00000000093D0000-0x0000000009454000-memory.dmp
    Filesize

    528KB

  • memory/3748-3-0x0000000005500000-0x0000000005592000-memory.dmp
    Filesize

    584KB

  • memory/3748-4-0x00000000054C0000-0x00000000054D0000-memory.dmp
    Filesize

    64KB

  • memory/3748-1-0x0000000074450000-0x0000000074C00000-memory.dmp
    Filesize

    7.7MB

  • memory/3748-0-0x0000000000A00000-0x0000000000AD4000-memory.dmp
    Filesize

    848KB

  • memory/4896-44-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/4896-88-0x0000000006360000-0x00000000063B0000-memory.dmp
    Filesize

    320KB