Report - opera.exe

Gen2 Generic Malware UPX Malicious Library Malicious Packer Admin Tool (Sysinternals etc ...) PE File PE32 OS Processor Check DLL
ScreenShot
Created 2021.11.19 02:07 Machine s1_win7_x6401
Filename opera.exe
Type PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
AI Score
4
Behavior Score
6.2
ZERO API file : clean
VT API (file) 2 detected (Unsafe, Malicious)
md5 3c98acf1760cf6c13d4b82e4dc133252
sha256 699b94fcc53da790da2dad2e68b38b66902f1381af98dc6962e2c6f982d951ba
ssdeep 49152:j7+nSHJ05LnIx//NUdVUhuhpUP278Sg4CyK7Ze1JMeyLy7hkZm:JYI7UdVUhUYIK+yI2Zm
imphash a0c012e2da92ad42555210cc958fa405
impfuzzy 3:dRYX1GtLRatdJPwWBJAEPw1MO/OywS9KTXzhAXwEQaxRegRWDhn:dOcidrBJAEoZ/OEGDzyRzwDh
  Network IP location

Signature (17cnts)

Level Description
watch Network activity contains more than one unique useragent
notice Allocates read-write-execute memory (usually to unpack itself)
notice Creates executable files on the filesystem
notice Drops an executable to the user AppData folder
notice File has been identified by 2 AntiVirus engines on VirusTotal as malicious
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 the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation
notice Sends data using the HTTP POST Method
notice Steals private information from local Internet browsers
notice The binary likely contains encrypted or compressed data indicative of a packer
notice The executable is compressed using UPX
info Checks amount of memory in system
info Checks if process is being debugged by a debugger
info The executable uses a known packer
info The file contains an unknown PE resource name possibly indicative of a packer

Rules (13cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (download)
watch Admin_Tool_IN_Zero Admin Tool Sysinternals binaries (download)
watch Malicious_Library_Zero Malicious_Library binaries (download)
watch Malicious_Packer_Zero Malicious Packer binaries (download)
watch UPX_Zero UPX packed file binaries (download)
watch UPX_Zero UPX packed file binaries (upload)
info IsDLL (no description) binaries (download)
info IsPE32 (no description) binaries (download)
info IsPE32 (no description) binaries (upload)
info OS_Processor_Check_Zero OS Processor Check binaries (download)
info PE_Header_Zero PE File Signature binaries (download)
info PE_Header_Zero PE File Signature binaries (upload)
info Win32_Trojan_Gen_2_0904B0_Zero Win32 Trojan Gen binaries (download)

Network (13cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
https://download.opera.com/download/get/?id=55532&autoupdate=1&ni=1&stream=stable&utm_campaign=search_relatedapp_via_opera_com_https&utm_lastpage=opera.com/partner&utm_medium=pb&utm_site=opera_com&utm_source=softonic_via_opera_com&utm_tryagain=yes&niuid=0 US OPERASOFTWARE 107.167.110.217 clean
https://get.geo.opera.com/pub/opera/desktop/81.0.4196.54/win/Opera_81.0.4196.54_Autoupdate_x64.exe US Opera Software AS 37.228.108.149 clean
https://autoupdate.geo.opera.com/geolocation/ US Opera Software AS 37.228.108.133 clean
https://desktop-netinstaller-sub.osp.opera.software/v1/binary US OPERASOFTWARE 107.167.119.133 clean
https://autoupdate.geo.opera.com/v2/netinstaller/Stable/windows/x64 US Opera Software AS 37.228.108.133 clean
autoupdate.geo.opera.com US Opera Software AS 37.228.108.133 clean
download.opera.com US OPERASOFTWARE 107.167.110.218 clean
get.geo.opera.com US Opera Software AS 37.228.108.149 clean
desktop-netinstaller-sub.osp.opera.software US OPERASOFTWARE 107.167.119.133 clean
37.228.108.133 US Opera Software AS 37.228.108.133 clean
107.167.119.133 US OPERASOFTWARE 107.167.119.133 clean
37.228.108.149 US Opera Software AS 37.228.108.149 clean
107.167.110.217 US OPERASOFTWARE 107.167.110.217 clean

Suricata ids

PE API

IAT(Import Address Table) Library

COMCTL32.dll
 0x8531ac InitCommonControlsEx
KERNEL32.DLL
 0x8531b4 LoadLibraryA
 0x8531b8 ExitProcess
 0x8531bc GetProcAddress
 0x8531c0 VirtualProtect
USER32.dll
 0x8531c8 MessageBoxW

EAT(Export Address Table) is none



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