Report - wwrreev.exe

AsyncRAT backdoor PWS .NET framework PE File .NET EXE OS Processor Check PE32
ScreenShot
Created 2021.06.14 14:11 Machine s1_win7_x6402
Filename wwrreev.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
10
Behavior Score
7.4
ZERO API file : malware
VT API (file) 43 detected (malicious, high confidence, GenericKD, Generic PWS, Unsafe, confidence, ZemsilF, jm0@aGC0USg, Eldorado, Attribute, HighConfidence, Redline, Reline, UnclassifiedMalware@0, Static AI, Malicious PE, grbqh, ai score=100, PSWTroj, kcloud, AgentTesla, score, PasswordStealer, R002H0DFB21, CLASSIC, Outbreak, susgen, GdSda)
md5 f154baeeb55ceb13aae9c4069b57bbcb
sha256 fc373226d2da88b09fb9edcd310f58096dfe8f20fee42feec9849921b551f48c
ssdeep 3072:iOVwtXSOA/PzEFxgJKXVyYvbV8krl5AK6KIgI85585dyXdV341Ix:uXSnnzEFK8XVTbV8kh5r/gDyXdOI
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (18cnts)

Level Description
danger File has been identified by 43 AntiVirus engines on VirusTotal as malicious
watch Collects information about installed applications
watch Communicates with host for which no DNS query was performed
watch Harvests credentials from local FTP client softwares
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 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 Queries for potentially installed applications
notice Steals private information from local Internet browsers
info Checks amount of memory in system
info Checks if process is being debugged by a debugger
info One or more processes crashed
info Queries for the computername
info Tries to locate where the browsers are installed
info Uses Windows APIs to generate a cryptographic key

Rules (6cnts)

Level Name Description Collection
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (upload)
info Is_DotNET_EXE (no description) binaries (upload)
info IsPE32 (no description) binaries (upload)
info OS_Processor_Check_Zero OS Processor Check binaries (upload)
info PE_Header_Zero PE File Signature binaries (upload)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (6cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://194.233.74.11:35496/ DE PlusServer GmbH 194.233.74.11 1990 clean
https://api.ip.sb/geoip US CLOUDFLARENET 104.26.13.31 clean
api.ip.sb US CLOUDFLARENET 172.67.75.172 clean
89.40.73.43 RO Hostmaze Inc Srl-d 89.40.73.43 malware
194.233.74.11 DE PlusServer GmbH 194.233.74.11 clean
104.26.13.31 US CLOUDFLARENET 104.26.13.31 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