servhelper | 08a75beea96e15a6bc2e838cf0649ef0e3be100b819d4513b816778f18903c12 | Triage

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Reports

Overview

overview

Static

static

3

08a75beea9...12.exe

windows7-x64

08a75beea9...12.exe

windows10-2004-x64

Sharing

General

Target

08a75beea96e15a6bc2e838cf0649ef0e3be100b819d4513b816778f18903c12
Size

4.5MB
Sample

240410-le5grsae86
MD5

2519d825ce34edc5881380dfe1a2f9c4
SHA1

642d87e38007682e8c60265ee59e67b09c32eb16
SHA256

08a75beea96e15a6bc2e838cf0649ef0e3be100b819d4513b816778f18903c12
SHA512

e4dfe0e8f3100824bd74942f4b97d39812055a572a1050ce8b18d0485c3f4bc42eb06c220ad4b145c055af7184ea31ca0274fcb029485f3cf90c8e81613c1ddd
SSDEEP

49152:E8CdRhKHG/xe5R7w0XQ5lh6aoBaD8NB+uLqXnVMlONTKFMc8XQDmDzE8k/9U1:E8eKHGJG

Score

10^/10

servhelper backdoor discovery exploit persistence trojan upx

Static task

static1

1 signatures

Behavioral task

behavioral1

Sample

08a75beea96e15a6bc2e838cf0649ef0e3be100b819d4513b816778f18903c12.exe

Resource

win7-20240221-en

servhelper backdoor discovery exploit persistence trojan upx

windows7-x64

20 signatures

150 seconds

Behavioral task

behavioral2

Sample

08a75beea96e15a6bc2e838cf0649ef0e3be100b819d4513b816778f18903c12.exe

Resource

win10v2004-20231215-en

servhelper backdoor discovery exploit persistence trojan upx

windows10-2004-x64

22 signatures

150 seconds

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

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

Targets

- Target
  
  08a75beea96e15a6bc2e838cf0649ef0e3be100b819d4513b816778f18903c12
- Size
  
  4.5MB
- MD5
  
  2519d825ce34edc5881380dfe1a2f9c4
- SHA1
  
  642d87e38007682e8c60265ee59e67b09c32eb16
- SHA256
  
  08a75beea96e15a6bc2e838cf0649ef0e3be100b819d4513b816778f18903c12
- SHA512
  
  e4dfe0e8f3100824bd74942f4b97d39812055a572a1050ce8b18d0485c3f4bc42eb06c220ad4b145c055af7184ea31ca0274fcb029485f3cf90c8e81613c1ddd
- SSDEEP
  
  49152:E8CdRhKHG/xe5R7w0XQ5lh6aoBaD8NB+uLqXnVMlONTKFMc8XQDmDzE8k/9U1:E8eKHGJG
Score

10^/10

servhelper backdoor discovery exploit persistence trojan upx
- ServHelper
  ServHelper is a backdoor written in Delphi and is associated with the hacking group TA505.
  trojan backdoor servhelper
- 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
- Loads dropped DLL
- Modifies file permissions
  discovery
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- Legitimate hosting services abused for malware hosting/C2
- Drops file in System32 directory
behavioral1 behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Account Manipulation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry

File and Directory Permissions Modification

Credential Access

Discovery

System Information Discovery

Lateral Movement

Remote Services

Remote Desktop Protocol

Collection

Exfiltration

Command and Control

Web Service

Impact

Resource Development

Reconnaissance

Tasks

static1

behavioral1

servhelperbackdoordiscoveryexploitpersistencetrojanupx

behavioral2

servhelperbackdoordiscoveryexploitpersistencetrojanupx

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