Managed XDR

c-windows-installer-71b4b4.msi (Tinba) — malware analysis report

File info

Filename
c-windows-installer-71b4b4.msi
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.2, MSI Installer, Code page: 1252, Title: Installation Database, Subject: CodecSt, Author: HViewer, Keywords: Installer, Comments: This installer database contains the logic and data required to install CodecSt., Template: Intel;13321, Revision Number: {A6C3A1C3-9D3D-4768-B570-5B017A86AAB3}, Create Time/Date: Mon Aug 26 17:40:00 2024, Last Saved Time/Date: Mon Aug 26 17:40:00 2024, Number of Pages: 500, Number of Words: 8, Name of Creating Application: Windows Installer XML Toolset (3.14.0.5721), Security: 2
File size
1.6 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
293a0afb61599ac92d7e796958b8f1c626819f8b
SHA256
ee1c700692eb8d1a948b4ef36711b0c301eb50470b8b6d6d0c386fc1107f5fa4
MD5
7dd6c1ab1c14f9469c24762518e09321

Malwares

  • Tinba

Signatures

Persistence

T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Defense Evasion

T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497.001 antivm_queries_computername: Retrieves the computer name
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Discovery

T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497.001 antivm_queries_computername: Retrieves the computer name

Other

yara_rules: Static rules
creates_exe: Creates executable files in the file system
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
msi_has_custom_action: MSI file contains custom action
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call

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