Overview

overview

10

Static

static

10

81621a043e...6f.exe

windows7-x64

9

81621a043e...6f.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 23:43

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General

  • Target

    81621a043eda965a444fc2e71eccb99fd9377230b4edfa8d364a2ee0c30f2c6f.exe

  • Size

    85KB

  • MD5

    134596320e44e8104d21202c88393916

  • SHA1

    ea9ef117d0b3e20c246802b04a33ae33ab9631fc

  • SHA256

    81621a043eda965a444fc2e71eccb99fd9377230b4edfa8d364a2ee0c30f2c6f

  • SHA512

    44b185307e4749ffc0e16afc141bf9e2b74061316f87d3a7a60670e565524f836860622f16e4a22dd489f6140f7eba6ed3518b0d3e602a6b5470b62f4dbc7470

  • SSDEEP

    1536:/RVCaKgzbLc54hukfgvqnDFdorV1Ayj4m/QWR/Rlq88vlnRqPR/1aViDRknJM2S8:JjbLl/gvyDFep1Tj4mYWR/R4nkPR/1aN

Score
9/10
persistencespywarestealerupx

Malware Config

Signatures

  • Detects executables containing possible sandbox analysis VM usernames 21 IoCs
  • UPX dump on OEP (original entry point) 23 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • UPX packed file 23 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 18 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\81621a043eda965a444fc2e71eccb99fd9377230b4edfa8d364a2ee0c30f2c6f.exe
    "C:\Users\Admin\AppData\Local\Temp\81621a043eda965a444fc2e71eccb99fd9377230b4edfa8d364a2ee0c30f2c6f.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1760
    • C:\Users\Admin\AppData\Local\Temp\81621a043eda965a444fc2e71eccb99fd9377230b4edfa8d364a2ee0c30f2c6f.exe
      "C:\Users\Admin\AppData\Local\Temp\81621a043eda965a444fc2e71eccb99fd9377230b4edfa8d364a2ee0c30f2c6f.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2500
      • C:\Users\Admin\AppData\Local\Temp\81621a043eda965a444fc2e71eccb99fd9377230b4edfa8d364a2ee0c30f2c6f.exe
        "C:\Users\Admin\AppData\Local\Temp\81621a043eda965a444fc2e71eccb99fd9377230b4edfa8d364a2ee0c30f2c6f.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2664
    • C:\Users\Admin\AppData\Local\Temp\81621a043eda965a444fc2e71eccb99fd9377230b4edfa8d364a2ee0c30f2c6f.exe
      "C:\Users\Admin\AppData\Local\Temp\81621a043eda965a444fc2e71eccb99fd9377230b4edfa8d364a2ee0c30f2c6f.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:3956

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

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

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:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\british nude kicking voyeur .avi.exe
    Filesize

    1.4MB

    MD5

    dcb613f3b37ec90dd484526d56840e5f

    SHA1

    fa92dfab3fa6830b2dc7fb53476eaab4afd2c50d

    SHA256

    f533bfa3a3317afdc4568cbf6af9194c7667242e746a110c77179c4de036eaf7

    SHA512

    f1c76c89de5e2ebf53bd7a0ea8cd5ed200dd742b0fa64c6b9900d2cc074aad37ddaa7e5d35ed198251a8cf31c775457949d4d9a24caa9a522cc5bb1f8a5cbee3

    Download Submit
  • memory/1760-189-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/1760-214-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/1760-205-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/1760-195-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/1760-183-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/1760-230-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/1760-226-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/1760-242-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/1760-209-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/1760-0-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/1760-246-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/1760-238-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/1760-188-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/1760-234-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/1760-218-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/1760-222-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/2500-54-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/2500-184-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/2664-186-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/2664-156-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/3956-155-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/3956-185-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

    Download