Report - strt.exe

PWS .NET framework email stealer Generic Malware Malicious Packer DNS Socket Escalate priviledges KeyLogger Code injection Downloader persistence AntiDebug AntiVM .NET EXE PE32 PE File
ScreenShot
Created 2021.07.09 18:19 Machine s1_win7_x6402
Filename strt.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
9
Behavior Score
12.8
ZERO API file : clean
VT API (file) 31 detected (malicious, high confidence, Bulz, YakbeexMSIL, GenericRXPE, Save, ZemsilF, zm0@aeitfrn, Eldorado, Malcode, gdn30, Kryptik, ABVM, Taskun, MalwareX, Fareit, Static AI, Malicious PE, ai score=82, Wacatac, score, AvsArher, bSIdr7, Unsafe, Basic, susgen, confidence, 100%)
md5 b214cee84b16aeb61636a83879b2fc9a
sha256 808471efa1f93a3e6a70c762b8e6d980258c40bb3a6f6aacb08486e64e1ae18f
ssdeep 12288:r28EKlXgFxY3wBeTxlXlp9wRMrnkCC/knCJWnTfd:blXlpPbEETl
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (28cnts)

Level Description
danger Executed a process and injected code into it
danger File has been identified by 31 AntiVirus engines on VirusTotal as malicious
watch Allocates execute permission to another process indicative of possible code injection
watch Attempts to remove evidence of file being downloaded from the Internet
watch Code injection by writing an executable or DLL to the memory of another process
watch Communicates with host for which no DNS query was performed
watch Deletes executed files from disk
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 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 suspicious process
notice Creates executable files on the filesystem
notice Drops an executable to the user AppData folder
notice Executes one or more WMI queries
notice One or more potentially interesting buffers were extracted
notice Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation
notice The binary likely contains encrypted or compressed data indicative of a packer
notice Uses Windows utilities for basic Windows functionality
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 Collects information to fingerprint the system (MachineGuid
info Command line console output was observed
info One or more processes crashed
info Queries for the computername

Rules (29cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (download)
warning Generic_Malware_Zero Generic Malware binaries (upload)
warning infoStealer_emailClients_Zero email clients info stealer memory
watch Malicious_Packer_Zero Malicious Packer binaries (download)
watch Malicious_Packer_Zero Malicious Packer binaries (upload)
watch Network_Downloader File Downloader memory
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (download)
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (upload)
notice Code_injection Code injection with CreateRemoteThread in a remote process memory
notice Escalate_priviledges Escalate priviledges memory
notice KeyLogger Run a KeyLogger memory
notice Network_DNS Communications use DNS memory
notice Network_TCP_Socket Communications over RAW Socket memory
notice Persistence Install itself for autorun at Windows startup memory
info anti_dbg Checks if being debugged 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 (download)
info Is_DotNET_EXE (no description) binaries (upload)
info IsPE32 (no description) binaries (download)
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature binaries (download)
info PE_Header_Zero PE File Signature binaries (upload)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory
info win_hook Affect hook table memory

Network (1cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
147.124.213.132 US AC-AS-1 147.124.213.132 clean

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