Overview

overview

10

Static

static

cbce26fb43...d3.exe

windows7-x64

10

cbce26fb43...d3.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    cbce26fb4371d48fb1d6620120173becc0bc9ef48afabbb63688ff20a59cbad3

  • Size

    508KB

  • Sample

    221123-z546ksee74

  • MD5

    5d299e5d52b6af9b8b61e52ee63185c9

  • SHA1

    d0f111648ff1469f03e5086c1f373df7e8d4a3d6

  • SHA256

    cbce26fb4371d48fb1d6620120173becc0bc9ef48afabbb63688ff20a59cbad3

  • SHA512

    f9e9355bd9237a1b155663405074777e4580d6210fcae0b4ea508d2981f735cf44f6ae00bfd8ea162a105c995d40fe6632184b2e818d6ba03c126c5ea9171429

  • SSDEEP

    6144:f3xV7htOfFiktSdWyKYAWFCbW7LYxLk+4MGT+N50cIXv+1coDdkozx3pypmlNH9J:f3xxPuFVtSdWJsuWXLGMvxsltRok/Gy

Score
10/10
evasionpersistenceupx

Malware Config

Targets

    • Target

      cbce26fb4371d48fb1d6620120173becc0bc9ef48afabbb63688ff20a59cbad3

    • Size

      508KB

    • MD5

      5d299e5d52b6af9b8b61e52ee63185c9

    • SHA1

      d0f111648ff1469f03e5086c1f373df7e8d4a3d6

    • SHA256

      cbce26fb4371d48fb1d6620120173becc0bc9ef48afabbb63688ff20a59cbad3

    • SHA512

      f9e9355bd9237a1b155663405074777e4580d6210fcae0b4ea508d2981f735cf44f6ae00bfd8ea162a105c995d40fe6632184b2e818d6ba03c126c5ea9171429

    • SSDEEP

      6144:f3xV7htOfFiktSdWyKYAWFCbW7LYxLk+4MGT+N50cIXv+1coDdkozx3pypmlNH9J:f3xxPuFVtSdWJsuWXLGMvxsltRok/Gy

    Score
    10/10
    evasionpersistenceupx

    • Modifies WinLogon for persistence

      persistence

    • Modifies visiblity of hidden/system files in Explorer

      evasion

    • Executes dropped EXE

    • UPX packed file

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

      upx

    • Checks computer location settings

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

    • Deletes itself

    • Loads dropped DLL

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Adds Run key to start application

      persistence

    • Maps connected drives based on registry

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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Hidden Files and Directories

1
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

3
T1112

Hidden Files and Directories

1
T1158

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Process Discovery

1
T1057

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks