Report - xlss.exe

PWS .NET framework AsyncRAT backdoor
ScreenShot
Created 2021.04.19 16:52 Machine s1_win7_x6401
Filename xlss.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
10
Behavior Score
1.8
ZERO API file : clean
VT API (file) 18 detected (malicious, high confidence, Unsafe, ZemsilF, 8m0@aGaB1F, Kryptik, AAMW, FileRepMalware, Artemis, HeapOverride, AvsArher, bUbzqH, Static AI, Malicious PE, confidence)
md5 4f5390b92f8ff72c45f690ab986d5d96
sha256 1d83a24be501df5dc4902f068a42033ab35c8546471dc627b5ebc452ce5da76f
ssdeep 12288:N3rQXvc9rdw6TLlBiUqdHhiZ/xaPXVkgH6CAf5mxgzRRRRR4hzf3I0Ki27QoDnFD:N3rQXarLSyaPDaXgx0RRRRR4hzeDK0
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (5cnts)

Level Description
watch File has been identified by 18 AntiVirus engines on VirusTotal as malicious
notice Allocates read-write-execute memory (usually to unpack itself)
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

Rules (7cnts)

Level Name Description Collection
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (upload)
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature Zero binaries (upload)
info IsNET_EXE (no description) binaries (upload)
info IsPacked Entropy Check binaries (upload)
info IsWindowsGUI (no description) binaries (upload)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (0cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?

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