Analysis

  • max time kernel
    136s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-01-2024 15:04

General

  • Target

    payment receipts.exe

  • Size

    986KB

  • MD5

    cdcfa8aab8a4766ddb88df4635104d83

  • SHA1

    7ad43cc7224f694995e53325a581e659eabe2e16

  • SHA256

    0414ef0adb12bfe054d85f9196cee419bee6a7692187d83239bd5f8ee867c4c8

  • SHA512

    9948e0571bfd8a167ad456a7aa4380b7f73f0bc77475b827bb20303a5fe1bce03670900e275cec573c88df51cd42a2060012bba623c7358640af8e1209210acb

  • SSDEEP

    24576:FJRsQJVHvu3/mAUf45P3z55KTBmfswlibk:bWgHv0wq50TAfpEk

Score
10/10

Malware Config

Extracted

Family

darkcloud

Attributes

Signatures

  • DarkCloud

    An information stealer written in Visual Basic.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\payment receipts.exe
    "C:\Users\Admin\AppData\Local\Temp\payment receipts.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4972
    • 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\payment receipts.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:764
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UbaskbOLQNa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAB82.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1356
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UbaskbOLQNa.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1372
    • C:\Users\Admin\AppData\Local\Temp\payment receipts.exe
      "C:\Users\Admin\AppData\Local\Temp\payment receipts.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:3736

Network

MITRE ATT&CK Enterprise v15

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

    bcbf21974cd645249dd30220c1c0656e

    SHA1

    4f8384c59cbfe134e8f9bbbc347aa5c9e488e70c

    SHA256

    d5f5620454d7c7079ec2c382b8f0c44084cad53caf0e8345de2931e371718816

    SHA512

    76ac433a22a76389f854e6a561d7fcfaeb7cb21ae441f70bb87a916f4770137c976027fed7da5a13a97e0d50a780a969a3921db1af4d98b255ea914adb32e138

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_arefjtf2.zyo.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpAB82.tmp

    Filesize

    1KB

    MD5

    bb0544b4076432dbff5c8177144e2bbb

    SHA1

    880874a4e90540eeec479dbd0d52a98fea40ccfb

    SHA256

    26026364938eb1ce04b467d5a43ae856b61c63f1a06f570fca394c23c33d5ae1

    SHA512

    cf2661b342d8044678537917a994f4863540237f60436ee44f6cec8ddbe7611e3c1c18d44ad3f82969031dd01b3fe494e6d77981929f92571667c7e3468bad1d

  • memory/764-84-0x0000000007C80000-0x00000000082FA000-memory.dmp

    Filesize

    6.5MB

  • memory/764-28-0x0000000002AD0000-0x0000000002AE0000-memory.dmp

    Filesize

    64KB

  • memory/764-55-0x0000000006310000-0x000000000632E000-memory.dmp

    Filesize

    120KB

  • memory/764-98-0x0000000074980000-0x0000000075130000-memory.dmp

    Filesize

    7.7MB

  • memory/764-90-0x0000000007880000-0x0000000007894000-memory.dmp

    Filesize

    80KB

  • memory/764-91-0x0000000007980000-0x000000000799A000-memory.dmp

    Filesize

    104KB

  • memory/764-89-0x0000000007870000-0x000000000787E000-memory.dmp

    Filesize

    56KB

  • memory/764-58-0x00000000068D0000-0x0000000006902000-memory.dmp

    Filesize

    200KB

  • memory/764-59-0x000000007FAC0000-0x000000007FAD0000-memory.dmp

    Filesize

    64KB

  • memory/764-17-0x00000000029F0000-0x0000000002A26000-memory.dmp

    Filesize

    216KB

  • memory/764-18-0x0000000074980000-0x0000000075130000-memory.dmp

    Filesize

    7.7MB

  • memory/764-88-0x0000000007840000-0x0000000007851000-memory.dmp

    Filesize

    68KB

  • memory/764-20-0x0000000002AD0000-0x0000000002AE0000-memory.dmp

    Filesize

    64KB

  • memory/764-86-0x00000000076B0000-0x00000000076BA000-memory.dmp

    Filesize

    40KB

  • memory/764-22-0x0000000005360000-0x0000000005382000-memory.dmp

    Filesize

    136KB

  • memory/764-83-0x0000000002AD0000-0x0000000002AE0000-memory.dmp

    Filesize

    64KB

  • memory/764-81-0x0000000007500000-0x00000000075A3000-memory.dmp

    Filesize

    652KB

  • memory/764-29-0x0000000005D60000-0x00000000060B4000-memory.dmp

    Filesize

    3.3MB

  • memory/764-66-0x0000000075210000-0x000000007525C000-memory.dmp

    Filesize

    304KB

  • memory/764-56-0x0000000006340000-0x000000000638C000-memory.dmp

    Filesize

    304KB

  • memory/1372-87-0x0000000007880000-0x0000000007916000-memory.dmp

    Filesize

    600KB

  • memory/1372-21-0x0000000074980000-0x0000000075130000-memory.dmp

    Filesize

    7.7MB

  • memory/1372-99-0x0000000074980000-0x0000000075130000-memory.dmp

    Filesize

    7.7MB

  • memory/1372-92-0x0000000007920000-0x0000000007928000-memory.dmp

    Filesize

    32KB

  • memory/1372-23-0x00000000053B0000-0x0000000005416000-memory.dmp

    Filesize

    408KB

  • memory/1372-57-0x000000007EF10000-0x000000007EF20000-memory.dmp

    Filesize

    64KB

  • memory/1372-19-0x00000000054C0000-0x0000000005AE8000-memory.dmp

    Filesize

    6.2MB

  • memory/1372-85-0x0000000007600000-0x000000000761A000-memory.dmp

    Filesize

    104KB

  • memory/1372-26-0x0000000005CA0000-0x0000000005D06000-memory.dmp

    Filesize

    408KB

  • memory/1372-27-0x0000000004E80000-0x0000000004E90000-memory.dmp

    Filesize

    64KB

  • memory/1372-82-0x0000000004E80000-0x0000000004E90000-memory.dmp

    Filesize

    64KB

  • memory/1372-24-0x0000000004E80000-0x0000000004E90000-memory.dmp

    Filesize

    64KB

  • memory/1372-72-0x0000000006870000-0x000000000688E000-memory.dmp

    Filesize

    120KB

  • memory/1372-60-0x0000000075210000-0x000000007525C000-memory.dmp

    Filesize

    304KB

  • memory/3736-36-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/3736-100-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/3736-50-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/4972-3-0x0000000007DC0000-0x0000000007E52000-memory.dmp

    Filesize

    584KB

  • memory/4972-1-0x0000000074980000-0x0000000075130000-memory.dmp

    Filesize

    7.7MB

  • memory/4972-12-0x0000000003530000-0x0000000003540000-memory.dmp

    Filesize

    64KB

  • memory/4972-11-0x0000000074980000-0x0000000075130000-memory.dmp

    Filesize

    7.7MB

  • memory/4972-10-0x00000000096A0000-0x0000000009742000-memory.dmp

    Filesize

    648KB

  • memory/4972-2-0x0000000008370000-0x0000000008914000-memory.dmp

    Filesize

    5.6MB

  • memory/4972-8-0x0000000007FE0000-0x0000000007FE8000-memory.dmp

    Filesize

    32KB

  • memory/4972-5-0x0000000003310000-0x000000000331A000-memory.dmp

    Filesize

    40KB

  • memory/4972-9-0x0000000008120000-0x000000000812C000-memory.dmp

    Filesize

    48KB

  • memory/4972-53-0x0000000074980000-0x0000000075130000-memory.dmp

    Filesize

    7.7MB

  • memory/4972-7-0x0000000008340000-0x0000000008358000-memory.dmp

    Filesize

    96KB

  • memory/4972-4-0x0000000003530000-0x0000000003540000-memory.dmp

    Filesize

    64KB

  • memory/4972-0-0x0000000000DC0000-0x0000000000EBC000-memory.dmp

    Filesize

    1008KB

  • memory/4972-6-0x0000000007FF0000-0x000000000808C000-memory.dmp

    Filesize

    624KB