Overview

overview

10

Static

static

aa80d5960e...08.exe

windows7_x64

10

aa80d5960e...08.exe

windows10_x64

1

Sharing

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General

  • Target

    aa80d5960e65ac46ad446c09c1a17608.exe

  • Size

    6.0MB

  • Sample

    210603-9n2lmnekgn

  • MD5

    aa80d5960e65ac46ad446c09c1a17608

  • SHA1

    c2468b1792e5ecef461d2d89470e8438c05cce24

  • SHA256

    857ddc8de567afa19f5bc9236f6cf3681e46919530f90acc25ff36112564432c

  • SHA512

    07e15d76dc1940e0b3a926cfa6a5d92760525ae7f9e54bc8c691f1c9ea8af71ffe818aa347857a5c1435316d152a262a1875f03f465bc7be36a10e73bab6022b

Score
10/10
servhelperbackdoordiscoveryexploitpersistencetrojanupx

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://raw.githubusercontent.com/sqlitey/sqlite/master/speed.ps1

Targets

    • Target

      aa80d5960e65ac46ad446c09c1a17608.exe

    • Size

      6.0MB

    • MD5

      aa80d5960e65ac46ad446c09c1a17608

    • SHA1

      c2468b1792e5ecef461d2d89470e8438c05cce24

    • SHA256

      857ddc8de567afa19f5bc9236f6cf3681e46919530f90acc25ff36112564432c

    • SHA512

      07e15d76dc1940e0b3a926cfa6a5d92760525ae7f9e54bc8c691f1c9ea8af71ffe818aa347857a5c1435316d152a262a1875f03f465bc7be36a10e73bab6022b

    Score
    10/10
    servhelperbackdoordiscoveryexploitpersistencetrojanupx

    • ServHelper

      ServHelper is a backdoor written in Delphi and is associated with the hacking group TA505.

      trojanbackdoorservhelper

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • Blocklisted process makes network request

    • Modifies RDP port number used by Windows

    • Possible privilege escalation attempt

      exploit

    • Sets DLL path for service in the registry

      persistence

    • UPX packed file

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

      upx

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Account Manipulation

1
T1098

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

File Permissions Modification

1
T1222

Credential Access

Discovery

Lateral Movement

Remote Desktop Protocol

1
T1076

Collection

Exfiltration

Command and Control

Impact

Tasks