Report - rundll32.exe

RAT PWS .NET framework Generic Malware AntiDebug AntiVM PE File PE32 .NET EXE
ScreenShot
Created 2021.11.02 12:16 Machine s1_win7_x6403
Filename rundll32.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
8
Behavior Score
10.2
ZERO API file : clean
VT API (file) 19 detected (Artemis, Unsafe, Save, Eldorado, Malcode, gdn30, Kryptik, ADHK, Malicious, Fareit, Sabsik, score, FileRepMalware, Static AI, Suspicious PE, susgen, confidence)
md5 2515726e608312c9ad0c845e53f0499c
sha256 29e85e2310c309eb1fc9939287177b02a8b4b096c2b600b2bd47a8e1acb58f36
ssdeep 12288:POZb3bUJyXtX53dd/qDA52DOZ/vlm6Vaza:hm7WA5V7ia
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (22cnts)

Level Description
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 Deletes executed files from disk
watch File has been identified by 19 AntiVirus engines on VirusTotal as malicious
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 Drops a binary and executes it
notice Drops an executable to the user AppData folder
notice HTTP traffic contains suspicious features which may be indicative of malware related traffic
notice One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
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 This executable has a PDB path

Rules (19cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (download)
warning Generic_Malware_Zero Generic Malware binaries (upload)
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)
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_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (download)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (18cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://www.sanlifalan.com/fqiq/?af-8_FRh=prTEVkQv/aIuaJ5tknUsCYHPcHrUQSHWro/2zNHeF4wHPtFNVSB8ZmBi9ORqDWcgPylN7lnN&UlSp=GVgTZXS8Kvx0RZ US EGIHOSTING 104.165.34.6 6750 mailcious
http://www.srofkansas.com/fqiq/?af-8_FRh=wFDpWBcybTtkZf6rJwxG8GxnrXCHdVwe5dpvC2P+G/35kvGl/Iz1QduPYt3eFaCRSD2mr4cI&UlSp=GVgTZXS8Kvx0RZ US BODIS-NJ 199.59.242.153 6445 mailcious
http://www.hanenosuke.com/fqiq/?af-8_FRh=xeMdXENerBxjIMz2FKChqf1nt0cxl+Ge/IuoWLeYNAKPizmuJVRlAC2vXkQEDiA7tI/nE2A5&UlSp=GVgTZXS8Kvx0RZ US CLOUDFLARENET 104.21.96.28 6608 mailcious
http://www.saint444.com/fqiq/?af-8_FRh=eXgEUzChbduGYiNOMCJq1lzrrQ1CIuaunm8NPy3G0K4s0BtpaBzDfGZEH2DMYdQWokGBQ7FM&UlSp=GVgTZXS8Kvx0RZ US NAMECHEAP-NET 63.250.44.164 clean
http://www.applebroog.industries/fqiq/?af-8_FRh=0RH9gkF4+S66YbdBg5arrRt8ci9oBvnO84hTkOxxIVwmdJGohZyCC7mOG5N6PcmeIk25yT0k&UlSp=GVgTZXS8Kvx0RZ US DEFENSE-NET 209.17.116.163 6686 mailcious
http://www.qianhaijcc.com/fqiq/?af-8_FRh=+GyJfJw7hTzGSWjLzSxzubcql+EX4XT+GbaCNiPPdvi0qO0hFgG0Ehnd2eXgZFp2PjMwiybO&UlSp=GVgTZXS8Kvx0RZ US LEASEWEB-USA-LAX-11 23.110.31.106 clean
www.sanlifalan.com US EGIHOSTING 104.165.34.6 clean
www.srofkansas.com US BODIS-NJ 199.59.242.153 clean
www.applebroog.industries US DEFENSE-NET 209.17.116.163 clean
www.hanenosuke.com US CLOUDFLARENET 172.67.150.160 clean
www.qianhaijcc.com US LEASEWEB-USA-LAX-11 23.110.31.106 clean
www.saint444.com US NAMECHEAP-NET 63.250.44.164 clean
209.17.116.163 US DEFENSE-NET 209.17.116.163 mailcious
172.67.150.160 US CLOUDFLARENET 172.67.150.160 mailcious
63.250.44.164 US NAMECHEAP-NET 63.250.44.164 clean
23.110.31.106 US LEASEWEB-USA-LAX-11 23.110.31.106 clean
199.59.242.153 US BODIS-NJ 199.59.242.153 mailcious
104.165.34.6 US EGIHOSTING 104.165.34.6 mailcious

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