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Overview

overview

10

Static

static

1

letsview-setup.exe

windows7-x64

3

letsview-setup.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    letsview-setup.exe

  • Size

    2.4MB

  • Sample

    241120-xff2casbkk

  • MD5

    7578d269fef4ac377832c4122c78e0bb

  • SHA1

    8901f9b7df38bcb2e1bfae7baab64a0d1f6b37a8

  • SHA256

    9668ad0def75c0bfccfa01a0a8b4fe3aa24a4f386f0807871edb14b979ac51bf

  • SHA512

    f89ed6ee3e7250a4fed1915c85ea6a58e14e6e7910a5462637ee8b9c4f61c015c4bedc337e22bab15133d1c58e6747f1ca1654bae6f195ac4174881fc5e4afaa

  • SSDEEP

    49152:6+iLgXBxC4o+JMv2Dpjm0zV4LTGnZ/lD/lZyWVu8se:6+5rFDpjmEZF/

Score
10/10
discoveryevasionexecutionpersistenceprivilege_escalation

Malware Config

Targets

    • Target

      letsview-setup.exe

    • Size

      2.4MB

    • MD5

      7578d269fef4ac377832c4122c78e0bb

    • SHA1

      8901f9b7df38bcb2e1bfae7baab64a0d1f6b37a8

    • SHA256

      9668ad0def75c0bfccfa01a0a8b4fe3aa24a4f386f0807871edb14b979ac51bf

    • SHA512

      f89ed6ee3e7250a4fed1915c85ea6a58e14e6e7910a5462637ee8b9c4f61c015c4bedc337e22bab15133d1c58e6747f1ca1654bae6f195ac4174881fc5e4afaa

    • SSDEEP

      49152:6+iLgXBxC4o+JMv2Dpjm0zV4LTGnZ/lD/lZyWVu8se:6+5rFDpjmEZF/

    Score
    10/10
    discoveryevasionexecutionpersistenceprivilege_escalation

    • Modifies firewall policy service

      evasion

    • Creates new service(s)

      persistenceexecution

    • Drops file in Drivers directory

    • Manipulates Digital Signatures

      Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.

    • Stops running service(s)

      evasionexecution

    • Modifies file permissions

      discovery

    • Downloads MZ/PE file

    • Enumerates connected drives

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

    • Modifies Windows Firewall

      evasion

    • Network Share Discovery

      Attempt to gather information on host network.

      discovery

    • Checks computer location settings

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

    • Drops file in System32 directory

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

      persistenceprivilege_escalation
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

2
T1569

Service Execution

2
T1569.002

Persistence

Create or Modify System Process

4
T1543

Windows Service

4
T1543.003

Event Triggered Execution

2
T1546

Component Object Model Hijacking

1
T1546.015

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Create or Modify System Process

4
T1543

Windows Service

4
T1543.003

Event Triggered Execution

2
T1546

Component Object Model Hijacking

1
T1546.015

Netsh Helper DLL

1
T1546.007

Defense Evasion

File and Directory Permissions Modification

1
T1222

Impair Defenses

3
T1562

Disable or Modify System Firewall

2
T1562.004

Modify Registry

2
T1112

Subvert Trust Controls

1
T1553

SIP and Trust Provider Hijacking

1
T1553.003

Credential Access

Discovery

Network Share Discovery

1
T1135

Peripheral Device Discovery

2
T1120

Query Registry

5
T1012

System Information Discovery

5
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

1
T1489

Tasks