Report - Dv31BrowInst.exe

RAT PWS .NET framework Generic Malware PE File PE32 .NET EXE
ScreenShot
Created 2021.10.18 09:30 Machine s1_win7_x6401
Filename Dv31BrowInst.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
9
Behavior Score
8.2
ZERO API file : malware
VT API (file) 41 detected (malicious, high confidence, GenericKD, Unsafe, Save, confidence, 100%, ZemsilF, eu0@a4pRpbd, PWSX, mqwiq, ASMalwS, kcloud, Sabsik, Ilgergop, HA2GH4, score, FTYX, ai score=85, StupidPInvoker, R002H0DJE21, Suxv, Static AI, Malicious PE, PossibleThreat, GdSda)
md5 592bff278b2bf2551ca505447229c399
sha256 24842beeccc32b2247b404694796aa988f94487b26855b0e1b2dbad88d391b33
ssdeep 1536:o3Cmd6dyEr0YJTFfjcx8JFheeZrM3M2e:o3t+rbJTGWveeZ4te
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (20cnts)

Level Description
danger File has been identified by 41 AntiVirus engines on VirusTotal as malicious
watch Installs itself for autorun at Windows startup
notice A process created a hidden window
notice Allocates read-write-execute memory (usually to unpack itself)
notice Checks adapter addresses which can be used to detect virtual network interfaces
notice Checks for the Locally Unique Identifier on the system for a suspicious privilege
notice Creates executable files on the filesystem
notice Creates hidden or system file
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 Resolves a suspicious Top Level Domain (TLD)
notice Terminates another process
notice The binary likely contains encrypted or compressed data indicative of a packer
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 The executable contains unknown PE section names indicative of a packer (could be a false positive)

Rules (11cnts)

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)
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 Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (download)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (14cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
https://iplogger.org/1aFhd7 DE Hetzner Online GmbH 88.99.66.31 clean
https://niemannbest.me/?username=david_us2 US CLOUDFLARENET 172.67.221.103 6275 mailcious
https://niemannbest.me/?username=david_us3 US CLOUDFLARENET 172.67.221.103 6275 mailcious
https://niemannbest.me/?username=david_us1 US CLOUDFLARENET 172.67.221.103 6275 mailcious
https://niemannbest.me/?username=david_us6 US CLOUDFLARENET 172.67.221.103 6275 mailcious
https://niemannbest.me/?username=david_us7 US CLOUDFLARENET 172.67.221.103 6275 mailcious
https://niemannbest.me/?username=david_us4 US CLOUDFLARENET 172.67.221.103 6275 mailcious
https://niemannbest.me/?username=david_us5 US CLOUDFLARENET 172.67.221.103 6275 mailcious
https://iplogger.org/1aHhd7 DE Hetzner Online GmbH 88.99.66.31 clean
topniemannpickshop.cc Unknown clean
niemannbest.me US CLOUDFLARENET 172.67.221.103 mailcious
iplogger.org DE Hetzner Online GmbH 88.99.66.31 mailcious
172.67.221.103 US CLOUDFLARENET 172.67.221.103 clean
88.99.66.31 DE Hetzner Online GmbH 88.99.66.31 mailcious

Suricata ids

PE API

IAT(Import Address Table) Library

mscoree.dll
 0x41a000 _CorExeMain

EAT(Export Address Table) is none



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