General

  • Target
    TeamViewerQS_ARBINFORMATICA.exe
  • Size 3.3MB
  • Sample260628-pen2kag19n
  • SHA256 ce59ac26d678e0384be49ea671a42991d65d2737cd21ea9bf75fbd205746a533
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      TeamViewerQS_ARBINFORMATICA.exe
    • Size 3.3MB
    • SHA256 ce59ac26d678e0384be49ea671a42991d65d2737cd21ea9bf75fbd205746a533
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • UPX packed file

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

    • Target
      $PLUGINSDIR/NSISdl.dll
    • Size 14KB
    • SHA256 fd0e8be2135f3d326b65520383a3468c3983fa32c9c93594d986b16709d80f28
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      $PLUGINSDIR/System.dll
    • Size 11KB
    • SHA256 dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

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

    • Target
      $PLUGINSDIR/TvGetVersion.dll
    • Size 50KB
    • SHA256 b5e3a463393887c08219366ac3efd60e8b4991df874586702950de2baa83104d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      $PLUGINSDIR/nsis7z.dll
    • Size 176KB
    • SHA256 0dedad042a306da32784c3ce79bfac0475b827e416c17e1a1dfdb461151f4271
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

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

    • Target
      TeamViewer.exe
    • Size 6.7MB
    • SHA256 1e4189c3847eb147fcb9c5bef2086920e391a9f656506b7291c4d324ade57ee8
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Checks computer location settings

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

    • Reads user/profile data of web browsers

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

    • Enumerates connected drives

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

    • Target
      TeamViewer_Desktop.exe
    • Size 2.1MB
    • SHA256 ff174a5eed56a04210723681ee4c44d9e854df8f3cf28dd72a56fb350eb249d8
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Target
      TeamViewer_Resource_ar.dll
    • Size 1.2MB
    • SHA256 f8ce9ea25bcc2dd69bcf4e1ff2612eb500fe2b71ba597a0ebe39221ce4dbbc88
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

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

    • Target
      TeamViewer_Resource_bg.dll
    • Size 1.2MB
    • SHA256 e74bdf13c078bd28b9df84ec3abb2d84c93d85f84d5306a762ab22c9e566b888
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      TeamViewer_Resource_cs.dll
    • Size 1.2MB
    • SHA256 b11e73a0bf96473c1fd99ebf38fa91b72ffd9acda934b425a4d91c31dbf1b7bd
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      TeamViewer_Resource_da.dll
    • Size 1.2MB
    • SHA256 534945d754cb0803b9b6b97e843d61ab9bc0ded85e18f8bcb0683c666734bb58
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      TeamViewer_Resource_de.dll
    • Size 1.2MB
    • SHA256 61aefeea4c0c56aee94511e95ab902a1d6e9f836dbd503d615d3f6713827ff14
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      TeamViewer_Resource_el.dll
    • Size 1.2MB
    • SHA256 143285cad30574e203dc32306c321d4118d29f2ba16cccdaa8659659457d153f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      TeamViewer_Resource_en.dll
    • Size 1.2MB
    • SHA256 de9e35eeb36024037f6a3001aa8459ea6ac47f5392445770ddaeef615eaf93f3
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      TeamViewer_Resource_es.dll
    • Size 1.2MB
    • SHA256 ca30dee8b1125b970cb80a59c69037e36f6e9e3002ada2915f43636f21009be4
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      TeamViewer_Resource_fi.dll
    • Size 1.2MB
    • SHA256 990186dcca24fe4daa9e512112ee9c9cf429e46a49f7ec715b4661b305125c99
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

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

MITRE ATT&CK Enterprise v16

Tasks

static1

upxinstaller
Score
5/10

behavioral1

defense_evasiondiscoveryspywarestealertrojanupx
Score
7/10

behavioral2

discoveryspywarestealerupx
Score
7/10

behavioral3

discovery
Score
3/10

behavioral4

discovery
Score
3/10

behavioral5

discovery
Score
3/10

behavioral6

adwarediscoverypersistenceransomwarespyware
Score
8/10

behavioral7

discovery
Score
3/10

behavioral8

discovery
Score
3/10

behavioral9

discovery
Score
3/10

behavioral10

adwarediscoverypersistenceransomwarespyware
Score
8/10

behavioral11

defense_evasiondiscoveryspywarestealertrojan
Score
7/10

behavioral12

adwarediscoverypersistenceransomwarespywarestealer
Score
8/10

behavioral13

defense_evasiondiscoveryspywaretrojan
Score
3/10

behavioral14

discovery
Score
3/10

behavioral15

Score
1/10

behavioral16

adwarepersistenceransomwarespyware
Score
8/10

behavioral17

Score
1/10

behavioral18

Score
1/10

behavioral19

Score
1/10

behavioral20

Score
1/10

behavioral21

Score
1/10

behavioral22

Score
1/10

behavioral23

Score
1/10

behavioral24

Score
1/10

behavioral25

Score
1/10

behavioral26

Score
1/10

behavioral27

Score
1/10

behavioral28

Score
1/10

behavioral29

Score
1/10

behavioral30

Score
1/10

behavioral31

Score
1/10

behavioral32

adwarepersistenceransomwarespyware
Score
8/10