Overview

overview

10

Static

static

198a342f66...b4.exe

windows7-x64

10

198a342f66...b4.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    198a342f6601c44ac765f4bf4b0aa5c993d52491402109e67f42c02909b83fb4

  • Size

    508KB

  • Sample

    221123-z6gfxaee92

  • MD5

    432ff587b08dad3f8960073e3ef35bf3

  • SHA1

    5704309a8f8a6b6ae289fef9309fc47874cd5f9a

  • SHA256

    198a342f6601c44ac765f4bf4b0aa5c993d52491402109e67f42c02909b83fb4

  • SHA512

    72aac32ec3ebdb92fb4177e6819fc3d2c4a57cfcc6d920d59a38c00daa46531238bf682c9ef685b2eacce159801fa0f4209141904b6e43bc470340be8e890a1f

  • SSDEEP

    6144:C3xV7htOfFiktSdWyKYAWFCbW7LYxLk+4MGT+N50cIXv+1coDdkozx3pypmlNH9J:C3xxPuFVtSdWJsuWXLGMvxsltRok/Gy

Score
10/10
evasionpersistenceupx

Malware Config

Targets

    • Target

      198a342f6601c44ac765f4bf4b0aa5c993d52491402109e67f42c02909b83fb4

    • Size

      508KB

    • MD5

      432ff587b08dad3f8960073e3ef35bf3

    • SHA1

      5704309a8f8a6b6ae289fef9309fc47874cd5f9a

    • SHA256

      198a342f6601c44ac765f4bf4b0aa5c993d52491402109e67f42c02909b83fb4

    • SHA512

      72aac32ec3ebdb92fb4177e6819fc3d2c4a57cfcc6d920d59a38c00daa46531238bf682c9ef685b2eacce159801fa0f4209141904b6e43bc470340be8e890a1f

    • SSDEEP

      6144:C3xV7htOfFiktSdWyKYAWFCbW7LYxLk+4MGT+N50cIXv+1coDdkozx3pypmlNH9J:C3xxPuFVtSdWJsuWXLGMvxsltRok/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