Report - One.exe

Gen2 AsyncRAT backdoor
ScreenShot
Created 2021.04.09 11:55 Machine s1_win7_x6402
Filename One.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
8
Behavior Score
6.2
ZERO API file : malware
VT API (file) 39 detected (malicious, high confidence, WizzMonetize, GenericKD, Artemis, Unsafe, WizremProc, confidence, ZemsilF, Hn0@aO6U6E, Attribute, HighConfidence, CsdiMonetize, AdwareX, eoucic, CLOUD, Generic Reputation PUA, eltil, ai score=88, kcloud, Bitrepeyp, AD7IWH, score, Static AI, Malicious PE, HgIASSUA)
md5 903b6e45e6ee66750cb682e67944dcf3
sha256 b1adf30c5cb4c1a7c06e877308d0f0e32f6ea1b21105de5db7583a889d089373
ssdeep 49152:X22xfVuLXEVjt1gJjunV2TdPXWw347ileX:X22xfVakj78unVs9Ww34gw
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (16cnts)

Level Description
danger File has been identified by 39 AntiVirus engines on VirusTotal as malicious
watch Communicates with host for which no DNS query was performed
notice Allocates read-write-execute memory (usually to unpack itself)
notice Checks adapter addresses which can be used to detect virtual network interfaces
notice Creates executable files on the filesystem
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
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 Queries for the computername
info This executable has a PDB path

Rules (17cnts)

Level Name Description Collection
info IsPE32 (no description) binaries (download)
info IsPE32 (no description) binaries (upload)
info OS_Processor_Check_Zero OS Processor Check Signature Zero binaries (download)
info OS_Processor_Check_Zero OS Processor Check Signature Zero binaries (upload)
info PE_Header_Zero PE File Signature Zero binaries (download)
info PE_Header_Zero PE File Signature Zero binaries (upload)
info HasDebugData DebugData Check binaries (upload)
info IsNET_EXE (no description) binaries (download)
info IsNET_EXE (no description) binaries (upload)
info IsPacked Entropy Check binaries (download)
info IsPacked Entropy Check binaries (upload)
info IsWindowsGUI (no description) binaries (download)
info IsWindowsGUI (no description) binaries (upload)
info Win32_Trojan_Gen_2_0904B0_Zero Win32 Trojan Gen binaries (upload)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)
info win_files_operation Affect private profile binaries (upload)
info win_registry Affect system registries binaries (upload)

Network (6cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://greataccesstoserver.com/files/ScHost.exe DE DIGITALOCEAN-ASN 159.89.4.33 malware
http://greataccesstoserver.com/files/ScHost.exe.config DE DIGITALOCEAN-ASN 159.89.4.33 clean
digitalassets.ams3.digitaloceanspaces.com NL DIGITALOCEAN-ASN 5.101.110.225 malware
greataccesstoserver.com DE DIGITALOCEAN-ASN 159.89.4.33 malware
159.89.4.33 DE DIGITALOCEAN-ASN 159.89.4.33 malware
5.101.110.225 NL DIGITALOCEAN-ASN 5.101.110.225 malware

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