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Overview

overview

10

Static

static

10

tmp.exe

windows7-x64

10

tmp.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    142s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230831-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/09/2023, 12:24 UTC

Sharing

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General

  • Target

    tmp.exe

  • Size

    230KB

  • MD5

    9b8f2f4b5dd94329b4f79b9a829d73ae

  • SHA1

    a8f7cc119eebfe74a5c8e37b72f784270acc9976

  • SHA256

    89942c4a6e1e3f33fa950549133aca7dcc154c7d88cea43d78aa3669de12eba6

  • SHA512

    6ef635a35083573e5d142d7a900c60bc32b8096b31762d6f08fd8b532b518a40eef59f8be44e34699f4a624c47bdbb639051877d305588761868bb93c2523c50

  • SSDEEP

    6144:9loZMYrIkd8g+EtXHkv/iD4sf9Ghv0IHx2PxM4dVHb8e1m+i:foZvL+EP8sf9Ghv0IHx2PxM4d54

Score
10/10
umbralstealer

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

    stealerumbral
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1336
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2852

Network

  • flag-us
    DNS
    gstatic.com
    tmp.exe
    Remote address:
    8.8.8.8:53
    Request
    gstatic.com
    IN A
    Response
    gstatic.com
    IN A
    142.250.179.131
  • flag-nl
    GET
    https://gstatic.com/generate_204
    tmp.exe
    Remote address:
    142.250.179.131:443
    Request
    GET /generate_204 HTTP/1.1
    Host: gstatic.com
    Connection: Keep-Alive
    Response
    HTTP/1.1 204 No Content
    Content-Length: 0
    Cross-Origin-Resource-Policy: cross-origin
    Date: Tue, 12 Sep 2023 12:24:44 GMT
    Alt-Svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
  • flag-us
    DNS
    8.8.8.8.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    8.8.8.8.in-addr.arpa
    IN PTR
    Response
    8.8.8.8.in-addr.arpa
    IN PTR
    dnsgoogle
  • flag-us
    DNS
    69.31.126.40.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    69.31.126.40.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    240.221.184.93.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    240.221.184.93.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    95.221.229.192.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    95.221.229.192.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    131.179.250.142.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    131.179.250.142.in-addr.arpa
    IN PTR
    Response
    131.179.250.142.in-addr.arpa
    IN PTR
    ams17s10-in-f31e100net
  • flag-us
    DNS
    208.194.73.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    208.194.73.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    9.228.82.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    9.228.82.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    41.110.16.96.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    41.110.16.96.in-addr.arpa
    IN PTR
    Response
    41.110.16.96.in-addr.arpa
    IN PTR
    a96-16-110-41deploystaticakamaitechnologiescom
  • flag-us
    DNS
    26.35.223.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    26.35.223.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    158.240.127.40.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    158.240.127.40.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    183.59.114.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    183.59.114.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    171.39.242.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    171.39.242.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    254.111.26.67.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    254.111.26.67.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    9.179.89.13.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    9.179.89.13.in-addr.arpa
    IN PTR
    Response
  • 142.250.179.131:443
    https://gstatic.com/generate_204
    tls, http
    tmp.exe
    770 B
     5.1kB
     9
    9

    HTTP Request

    GET https://gstatic.com/generate_204

    HTTP Response

    204
  • 8.8.8.8:53
    gstatic.com
    dns
    tmp.exe
    57 B
     73 B
     1
    1

    DNS Request

    gstatic.com

    DNS Response

    142.250.179.131

  • 8.8.8.8:53
    8.8.8.8.in-addr.arpa
    dns
    66 B
     90 B
     1
    1

    DNS Request

    8.8.8.8.in-addr.arpa

  • 8.8.8.8:53
    69.31.126.40.in-addr.arpa
    dns
    71 B
     157 B
     1
    1

    DNS Request

    69.31.126.40.in-addr.arpa

  • 8.8.8.8:53
    240.221.184.93.in-addr.arpa
    dns
    73 B
     144 B
     1
    1

    DNS Request

    240.221.184.93.in-addr.arpa

  • 8.8.8.8:53
    95.221.229.192.in-addr.arpa
    dns
    73 B
     144 B
     1
    1

    DNS Request

    95.221.229.192.in-addr.arpa

  • 8.8.8.8:53
    131.179.250.142.in-addr.arpa
    dns
    74 B
     112 B
     1
    1

    DNS Request

    131.179.250.142.in-addr.arpa

  • 8.8.8.8:53
    208.194.73.20.in-addr.arpa
    dns
    72 B
     158 B
     1
    1

    DNS Request

    208.194.73.20.in-addr.arpa

  • 8.8.8.8:53
    9.228.82.20.in-addr.arpa
    dns
    70 B
     156 B
     1
    1

    DNS Request

    9.228.82.20.in-addr.arpa

  • 8.8.8.8:53
    41.110.16.96.in-addr.arpa
    dns
    71 B
     135 B
     1
    1

    DNS Request

    41.110.16.96.in-addr.arpa

  • 8.8.8.8:53
    26.35.223.20.in-addr.arpa
    dns
    71 B
     157 B
     1
    1

    DNS Request

    26.35.223.20.in-addr.arpa

  • 8.8.8.8:53
    158.240.127.40.in-addr.arpa
    dns
    73 B
     147 B
     1
    1

    DNS Request

    158.240.127.40.in-addr.arpa

  • 8.8.8.8:53
    183.59.114.20.in-addr.arpa
    dns
    72 B
     158 B
     1
    1

    DNS Request

    183.59.114.20.in-addr.arpa

  • 8.8.8.8:53
    171.39.242.20.in-addr.arpa
    dns
    72 B
     158 B
     1
    1

    DNS Request

    171.39.242.20.in-addr.arpa

  • 8.8.8.8:53
    254.111.26.67.in-addr.arpa
    dns
    72 B
     126 B
     1
    1

    DNS Request

    254.111.26.67.in-addr.arpa

  • 8.8.8.8:53
    9.179.89.13.in-addr.arpa
    dns
    70 B
     144 B
     1
    1

    DNS Request

    9.179.89.13.in-addr.arpa

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1336-0-0x0000026F2C7E0000-0x0000026F2C820000-memory.dmp

    Filesize

    256KB

    Download

  • memory/1336-1-0x00007FFC2F100000-0x00007FFC2FBC1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1336-2-0x0000026F46DC0000-0x0000026F46DD0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1336-4-0x00007FFC2F100000-0x00007FFC2FBC1000-memory.dmp

    Filesize

    10.8MB

    Download

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