Overview

overview

10

Static

static

1

tmp.exe

windows7-x64

10

tmp.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    43s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    11-01-2023 16:31

Sharing

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General

  • Target

    tmp.exe

  • Size

    440KB

  • MD5

    039e0b7da5515c2a820473045b4b9627

  • SHA1

    f5c9309e5cdc9fe2ff657bb3c5bd867a4ee3591e

  • SHA256

    92d5b050cde4acb3505d05425803ff5dabaf64e505c0c980a0cf11ba9304f06e

  • SHA512

    23e2c39cdc0ae050e047e23a9a9b61accccaddb7fe6e0fa79cebcee76bb7e88df7e918068f11039cfdd9e35c3f13aba6a2f939c3e66edd8843d39a85593203a0

  • SSDEEP

    6144:WY2xUcRNOoxj+z1Ne/rJTg7hX9JWlbMaebckRcX6M2HOkHsYESzJJlbc:m5OCjkGNTg7hitebckRH5MYdJx

Score
10/10
guloaderdownloader

Malware Config

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

    downloaderguloader
  • Loads dropped DLL 1 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    PID:580

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\nso3.tmp\System.dll
    Filesize

    11KB

    MD5

    b8992e497d57001ddf100f9c397fcef5

    SHA1

    e26ddf101a2ec5027975d2909306457c6f61cfbd

    SHA256

    98bcd1dd88642f4dd36a300c76ebb1ddfbbbc5bfc7e3b6d7435dc6d6e030c13b

    SHA512

    8823b1904dccfaf031068102cb1def7958a057f49ff369f0e061f1b4db2090021aa620bb8442a2a6ac9355bb74ee54371dc2599c20dc723755a46ede81533a3c

    Download Submit
  • memory/580-54-0x0000000075931000-0x0000000075933000-memory.dmp
    Filesize

    8KB

    Download
  • memory/580-56-0x0000000003A60000-0x0000000004A95000-memory.dmp
    Filesize

    16.2MB

    Download
  • memory/580-57-0x0000000003A60000-0x0000000004A95000-memory.dmp
    Filesize

    16.2MB

    Download