Report - ansazx.exe

Formbook Generic Malware Antivirus PWS AntiDebug AntiVM PE File .NET EXE PE32
ScreenShot
Created 2023.07.06 07:35 Machine s1_win7_x6401
Filename ansazx.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
8
Behavior Score
11.4
ZERO API
VT API (file)
md5 fdd25eee7ddd13861e4923ca95ccd013
sha256 61fb2d927a05de9597cc9bb4bf6e1b40dff199b63c41414f957d8bb42d47582e
ssdeep 12288:H6OQAZfALj0oxqfb9dxdsT6cdS8J6n77ie:yjofLbc6ElQn77D
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (25cnts)

Level Description
danger Connects to an IP address that is no longer responding to requests (legitimate services will remain up-and-running usually)
danger Executed a process and injected code into it
watch Allocates execute permission to another process indicative of possible code injection
watch Code injection by writing an executable or DLL to the memory of another process
watch Manipulates memory of a non-child process indicative of process injection
watch Potential code injection by writing to the memory of another process
watch Resumed a suspended thread in a remote process potentially indicative of process injection
watch The process powershell.exe wrote an executable file to disk
watch Used NtSetContextThread to modify a thread in a remote process indicative of process injection
notice A process created a hidden window
notice Allocates read-write-execute memory (usually to unpack itself)
notice Checks for the Locally Unique Identifier on the system for a suspicious privilege
notice Creates a shortcut to an executable file
notice Creates a suspicious process
notice One or more potentially interesting buffers were extracted
notice Resolves a suspicious Top Level Domain (TLD)
notice Terminates another process
notice The binary likely contains encrypted or compressed data indicative of a packer
notice Yara rule detected in process memory
info Checks amount of memory in system
info Checks if process is being debugged by a debugger
info Command line console output was observed
info Queries for the computername
info This executable has a PDB path
info Uses Windows APIs to generate a cryptographic key

Rules (14cnts)

Level Name Description Collection
danger Win_Trojan_Formbook_m_Zero Used Formbook[m] memory
warning Generic_Malware_Zero Generic Malware binaries (download)
watch Antivirus Contains references to security software binaries (download)
notice Generic_PWS_Memory_Zero PWS Memory memory
info DebuggerCheck__GlobalFlags (no description) memory
info DebuggerCheck__QueryInfo (no description) memory
info DebuggerHiding__Active (no description) memory
info DebuggerHiding__Thread (no description) memory
info disable_dep Bypass DEP memory
info Is_DotNET_EXE (no description) binaries (upload)
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature binaries (upload)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory

Network (3cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
www.aaebcspgdp.com Unknown
www.rezzz.top CN Chinanet 125.106.143.216
125.106.143.216 CN Chinanet 125.106.143.216

Suricata ids

PE API

IAT(Import Address Table) Library

mscoree.dll
 0x402000 _CorExeMain

EAT(Export Address Table) is none



Similarity measure (PE file only) - Checking for service failure