Overview

overview

7

Static

static

3

2024-04-28...re.exe

windows7-x64

7

2024-04-28...re.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    28-04-2024 05:07

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General

  • Target

    2024-04-28_df8a39a0cc49414c2fe3c8f9488bae09_bkransomware.exe

  • Size

    96KB

  • MD5

    df8a39a0cc49414c2fe3c8f9488bae09

  • SHA1

    05451e1adf5351978d2843c9550ef21181914256

  • SHA256

    bdc88beb094f4d41fbb69e9b0e6a5799b3915f4c0fb1c843beffeb209b0a31ab

  • SHA512

    7f9ae4c610296f822a19be02622ddd11ba874881a2d8333e5a064ab714e36da6bd9e54b59ec50cb28d5aefb0db81a2966e2835e8cb335c4137a917dd6121fcaf

  • SSDEEP

    1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTBMxmEPwMcbxXqRFD:ZRpAyazIliazT2m4wMg+p

Score
7/10
persistencespywarestealer

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops file in Windows directory 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-28_df8a39a0cc49414c2fe3c8f9488bae09_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-28_df8a39a0cc49414c2fe3c8f9488bae09_bkransomware.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2344
    • C:\Users\Admin\AppData\Local\Temp\Y1Q0f9F0cuHTgoc.exe
      C:\Users\Admin\AppData\Local\Temp\Y1Q0f9F0cuHTgoc.exe
      2⤵
      • Executes dropped EXE
      PID:2384
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:3044

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Y1Q0f9F0cuHTgoc.exe
    Filesize

    96KB

    MD5

    48b055628a66ba5c85fcb0ab1f11679b

    SHA1

    b0e3c30df5df18f24c90c5f31e3c79a611686a74

    SHA256

    d0c2d70c07bee240539b0a5526f561c353befdab8a2f99cad275e6293313c626

    SHA512

    6e48e8704f89488250ce66bb5aa422d4e2d53b528e87a1d5cd2db61e3134683e9243bfe8de35ba94c8aeb7f30ecd419cb2352c3c14204bde632a52c506ccaade

    Download Submit
  • C:\Windows\CTS.exe
    Filesize

    71KB

    MD5

    f9d4ab0a726adc9b5e4b7d7b724912f1

    SHA1

    3d42ca2098475924f70ee4a831c4f003b4682328

    SHA256

    b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

    SHA512

    22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

    Download Submit
  • \Users\Admin\AppData\Local\Temp\Y1Q0f9F0cuHTgoc.exe
    Filesize

    25KB

    MD5

    abbd49c180a2f8703f6306d6fa731fdc

    SHA1

    d63f4bfe7f74936b2fbace803e3da6103fbf6586

    SHA256

    5f411c0bd9ed9a42b0f07ed568c7d0cf358a83063b225a1f8f7da3296dde90f1

    SHA512

    290dd984acc451b778f3db8c510bae7aec1d9547c3ad0a1829df731c136e4ecc9a37dc6a786cf8f1ecc4d14339aed1288af25055f450f6f953138c8d4d5c36e9

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  • memory/2384-15-0x0000000000400000-0x000000000040D000-memory.dmp
    Filesize

    52KB

    Download