Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-04-2024 01:48

General

  • Target

    Packing List PDF.exe

  • Size

    822KB

  • MD5

    5a12438b3b4c926c12a9376c7bf13426

  • SHA1

    c3185c6a5e5f07a5befbe4af7131d05634f5d1a3

  • SHA256

    1a794211deaa0ecb6abc6101d7c1bd61111b4dd2d895ee7ecf78fbf17f4c9ab3

  • SHA512

    16c1e0e18eb8b3345b8b05443b782cb1dd35492ac986811c39f3cdce8dfe85b003aba029ffca0e38aa33c951d0d08281825152b0e239471eac3de18ac67864d0

  • SSDEEP

    12288:tEqnHvjNIrpf9rN/mc/CaBmIwsyaPSIir97G6NLOZCGKEgbjuPBB5uO12rq:txPjKr5BNDWVxcSIiRG6atlB5N

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.fascia-arch.com
  • Port:
    587
  • Username:
    brian@fascia-arch.com
  • Password:
    HERbertstown1987
  • Email To:
    donj5425@gmail.com

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 WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Packing List PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\Packing List PDF.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    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\Packing List PDF.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4512
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CmxzrHBB.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2856
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CmxzrHBB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7697.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2720
    • C:\Users\Admin\AppData\Local\Temp\Packing List PDF.exe
      "C:\Users\Admin\AppData\Local\Temp\Packing List PDF.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4228

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

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

    ccf379ab5b8dd3d8e2abc255d193bd6b

    SHA1

    5451dfda0c83bc8398c029c61bb3f3a45e5062aa

    SHA256

    af07eab4be777ca0b4a384b4ccb56424f06673cf9e1e5cb3ae0da6a2b2beef0f

    SHA512

    ff7b571e9674420c7d092b00c836dc9e6d25efcaf59c8cd2eb605ee3e945f20a4656a1ec5664e2b5724f31e76a83ad077a3e1776c61f87041f0ee4c44b9dae21

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zywp5y3t.bmk.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp7697.tmp
    Filesize

    1KB

    MD5

    af6c1e199cdbf849ccc0d0e60a8de99f

    SHA1

    ba8f920202e9152adc7b20644e91bb0b3f204ddc

    SHA256

    e0b9112cab47166122141dfd3dfe92b7a9c9c24f12083d9ea67bceba4cb12879

    SHA512

    a33b5b74e4b22fd07cc4dd6e48c707d9fea4f1c7ab4ac20c3b7c58755b69162d8f324e50224f3f0f195fc8eb558ccc25603cb81e8b7d265446d4357a6ba750ad

  • memory/820-6-0x0000000005B70000-0x0000000005B90000-memory.dmp
    Filesize

    128KB

  • memory/820-5-0x0000000005860000-0x000000000586A000-memory.dmp
    Filesize

    40KB

  • memory/820-4-0x00000000059F0000-0x0000000005A00000-memory.dmp
    Filesize

    64KB

  • memory/820-7-0x0000000005BC0000-0x0000000005BD4000-memory.dmp
    Filesize

    80KB

  • memory/820-8-0x0000000009660000-0x00000000096E4000-memory.dmp
    Filesize

    528KB

  • memory/820-9-0x000000000C790000-0x000000000C82C000-memory.dmp
    Filesize

    624KB

  • memory/820-3-0x00000000057A0000-0x0000000005832000-memory.dmp
    Filesize

    584KB

  • memory/820-2-0x0000000005E30000-0x00000000063D4000-memory.dmp
    Filesize

    5.6MB

  • memory/820-0-0x0000000000D40000-0x0000000000E14000-memory.dmp
    Filesize

    848KB

  • memory/820-46-0x0000000074640000-0x0000000074DF0000-memory.dmp
    Filesize

    7.7MB

  • memory/820-1-0x0000000074640000-0x0000000074DF0000-memory.dmp
    Filesize

    7.7MB

  • memory/2856-72-0x0000000008100000-0x000000000877A000-memory.dmp
    Filesize

    6.5MB

  • memory/2856-80-0x0000000007DE0000-0x0000000007DE8000-memory.dmp
    Filesize

    32KB

  • memory/2856-19-0x0000000074640000-0x0000000074DF0000-memory.dmp
    Filesize

    7.7MB

  • memory/2856-74-0x0000000007B30000-0x0000000007B3A000-memory.dmp
    Filesize

    40KB

  • memory/2856-24-0x0000000005AE0000-0x0000000005B46000-memory.dmp
    Filesize

    408KB

  • memory/2856-23-0x0000000005A70000-0x0000000005AD6000-memory.dmp
    Filesize

    408KB

  • memory/2856-77-0x0000000007CF0000-0x0000000007CFE000-memory.dmp
    Filesize

    56KB

  • memory/2856-86-0x0000000074640000-0x0000000074DF0000-memory.dmp
    Filesize

    7.7MB

  • memory/2856-20-0x0000000002EF0000-0x0000000002F00000-memory.dmp
    Filesize

    64KB

  • memory/2856-76-0x0000000007CC0000-0x0000000007CD1000-memory.dmp
    Filesize

    68KB

  • memory/2856-47-0x00000000067A0000-0x00000000067BE000-memory.dmp
    Filesize

    120KB

  • memory/2856-48-0x0000000006860000-0x00000000068AC000-memory.dmp
    Filesize

    304KB

  • memory/2856-49-0x0000000006D80000-0x0000000006DB2000-memory.dmp
    Filesize

    200KB

  • memory/2856-60-0x0000000006D50000-0x0000000006D6E000-memory.dmp
    Filesize

    120KB

  • memory/2856-67-0x00000000077B0000-0x0000000007853000-memory.dmp
    Filesize

    652KB

  • memory/2856-79-0x0000000007E00000-0x0000000007E1A000-memory.dmp
    Filesize

    104KB

  • memory/2856-50-0x0000000074EF0000-0x0000000074F3C000-memory.dmp
    Filesize

    304KB

  • memory/2856-78-0x0000000007D00000-0x0000000007D14000-memory.dmp
    Filesize

    80KB

  • memory/4228-25-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/4228-89-0x0000000007250000-0x00000000072A0000-memory.dmp
    Filesize

    320KB

  • memory/4512-40-0x0000000005930000-0x0000000005C84000-memory.dmp
    Filesize

    3.3MB

  • memory/4512-75-0x00000000074A0000-0x0000000007536000-memory.dmp
    Filesize

    600KB

  • memory/4512-16-0x0000000004A70000-0x0000000004A80000-memory.dmp
    Filesize

    64KB

  • memory/4512-73-0x0000000007220000-0x000000000723A000-memory.dmp
    Filesize

    104KB

  • memory/4512-61-0x0000000074EF0000-0x0000000074F3C000-memory.dmp
    Filesize

    304KB

  • memory/4512-15-0x0000000074640000-0x0000000074DF0000-memory.dmp
    Filesize

    7.7MB

  • memory/4512-17-0x0000000004A70000-0x0000000004A80000-memory.dmp
    Filesize

    64KB

  • memory/4512-14-0x0000000004970000-0x00000000049A6000-memory.dmp
    Filesize

    216KB

  • memory/4512-18-0x00000000050B0000-0x00000000056D8000-memory.dmp
    Filesize

    6.2MB

  • memory/4512-87-0x0000000074640000-0x0000000074DF0000-memory.dmp
    Filesize

    7.7MB

  • memory/4512-22-0x0000000004FA0000-0x0000000004FC2000-memory.dmp
    Filesize

    136KB