Overview

overview

10

Static

static

4ef8ca1609...55.exe

windows7_x64

10

4ef8ca1609...55.exe

windows10_x64

10

Analysis

  • max time kernel
    152s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09-11-2020 19:39

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General

  • Target

    4ef8ca1609ef52a9a30bcc7e87083b55.exe

  • Size

    681KB

  • MD5

    4ef8ca1609ef52a9a30bcc7e87083b55

  • SHA1

    d2f204852ab8b8d19288eef03549c87cfb9fbda9

  • SHA256

    aa0391688fb348eaa32856bcf0caca596177985f4dd9733f69ab2018ba8d1ff7

  • SHA512

    991ad0bf136825f3c46a748aca349a4a0dd007fe0b72aaff631978f2a2682d8aa12457f7c6df20733dedad919b4606b1c0731a413c75be51289a2f4896c2ec4a

Score
10/10
vidardiscoveryspywarestealer

Malware Config

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

    stealervidar
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spyware
  • Reads user/profile data of web browsers 2 TTPs

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

    spyware
  • Accesses 2FA software files, possible credential harvesting 2 TTPs
    spywarestealer
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows directory 2 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies Control Panel 1 IoCs
    evasion
  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
    adwarespyware
  • Modifies registry class 273 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4ef8ca1609ef52a9a30bcc7e87083b55.exe
    "C:\Users\Admin\AppData\Local\Temp\4ef8ca1609ef52a9a30bcc7e87083b55.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:948
    • C:\Program Files (x86)\wotsuper\wotsuper\wotsuper.exe
      "C:\Program Files (x86)\wotsuper\wotsuper\wotsuper.exe"
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:636
    • C:\Windows\SysWOW64\regedit.exe
      "C:\Windows\System32\regedit.exe" \s C:\Windows\wotsuper.reg
      2⤵
      • Runs .reg file with regedit
      PID:1008
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
    1⤵
    • Drops file in Windows directory
    • Modifies Control Panel
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:4068
  • C:\Windows\system32\browser_broker.exe
    C:\Windows\system32\browser_broker.exe -Embedding
    1⤵
    • Modifies Internet Explorer settings
    PID:1180
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1932
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    PID:1636
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    PID:4280
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    PID:4536
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    PID:4624

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

3
T1005

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Replay Monitor

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Downloads

  • C:\Program Files (x86)\wotsuper\wotsuper\wotsuper.exe
    MD5

    b546f0345b342336c17e5308953a0523

    SHA1

    b2c4bb0a6a3f19b70f078ca4e9dd4cdd66d7848e

    SHA256

    844416ef0674d50b0c579e1d95ed7ac729d5c553b26770764d4e609fb94e94ec

    SHA512

    f866163aabfcbde5b7da25e937799b35f6f7e0619cc88e69d23719f843815f23bf5dd253b4a3a9428909cecd9f7df3d02ec313e163bad1a40ed599a32be1e27d

    Download Submit
  • C:\Program Files (x86)\wotsuper\wotsuper\wotsuper.exe
    MD5

    b546f0345b342336c17e5308953a0523

    SHA1

    b2c4bb0a6a3f19b70f078ca4e9dd4cdd66d7848e

    SHA256

    844416ef0674d50b0c579e1d95ed7ac729d5c553b26770764d4e609fb94e94ec

    SHA512

    f866163aabfcbde5b7da25e937799b35f6f7e0619cc88e69d23719f843815f23bf5dd253b4a3a9428909cecd9f7df3d02ec313e163bad1a40ed599a32be1e27d

    Download Submit
  • memory/636-0-0x0000000000000000-mapping.dmp
    Download
  • memory/636-4-0x0000000000738000-0x0000000000739000-memory.dmp
    Filesize

    4KB

    Download
  • memory/636-5-0x0000000002350000-0x0000000002351000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1008-3-0x0000000000000000-mapping.dmp
    Download