Report - rjFcwBLmZM9M3y7.exe

Gen1 Generic Malware Malicious Library UPX Malicious Packer Downloader .NET framework(MSIL) PE File PE32 .NET EXE icon DLL OS Processor Check BMP Format
ScreenShot
Created 2023.10.05 07:51 Machine s1_win7_x6403
Filename rjFcwBLmZM9M3y7.exe
Type PE32 executable (console) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
6
Behavior Score
9.4
ZERO API file : malware
VT API (file) 41 detected (malicious, high confidence, Krypt, unsafe, Save, Attribute, HighConfidence, score, DropperX, dGZlOgwTO, kFakrH0A, Gen2, PackedNET, moderate, MsilDrop, twon, GH@60rvah, Detected, GenericRXWI, ai score=85, Binder, Static AI, Malicious PE, ZemsilF, FoW@aWB@evn, confidence, 100%)
md5 5d4392b56aa4ebac400bbe86fe5d0767
sha256 a604eed1325b12671370e268783cfa74f8675a468492ff98416187d73768b4af
ssdeep 49152:o3s23i7y2K9TYDnORn+JuXbOoGlQXlSHcBA5TkfZnIZirM5RxivYp:
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (22cnts)

Level Description
danger File has been identified by 41 AntiVirus engines on VirusTotal as malicious
watch Appends a known CryptoMix ransomware file extension to files that have been encrypted
watch Attempts to access Bitcoin/ALTCoin wallets
watch Executes one or more WMI queries
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 Expresses interest in specific running processes
notice HTTP traffic contains suspicious features which may be indicative of malware related traffic
notice Looks up the external IP address
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 Searches running processes potentially to identify processes for sandbox evasion
notice Sends data using the HTTP POST Method
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 Collects information to fingerprint the system (MachineGuid
info Queries for the computername

Rules (17cnts)

Level Name Description Collection
danger Win32_Trojan_Gen_1_0904B0_Zero Win32 Trojan Emotet binaries (download)
warning Generic_Malware_Zero Generic Malware binaries (download)
watch Malicious_Library_Zero Malicious_Library binaries (download)
watch Malicious_Packer_Zero Malicious Packer binaries (download)
watch Network_Downloader File Downloader binaries (download)
watch UPX_Zero UPX packed file binaries (download)
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (download)
info bmp_file_format bmp file format binaries (download)
info icon_file_format icon file format binaries (download)
info Is_DotNET_EXE (no description) binaries (download)
info Is_DotNET_EXE (no description) 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)

Network (6cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://rakishev.net/wp-load.php US CLOUDFLARENET 172.67.150.79 clean
http://ip-api.com/json/?fields=11827 US TUT-AS 208.95.112.1 clean
rakishev.net US CLOUDFLARENET 172.67.150.79 clean
ip-api.com US TUT-AS 208.95.112.1 clean
104.21.88.34 US CLOUDFLARENET 104.21.88.34 clean
208.95.112.1 US TUT-AS 208.95.112.1 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