Report - bld_3.exe

RAT Emotet PWS .NET framework Loki_b UPX Malicious Packer .NET EXE PE File PE32 OS Processor Check
ScreenShot
Created 2023.05.23 09:21 Machine s1_win7_x6401
Filename bld_3.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
9
Behavior Score
7.6
ZERO API file : malware
VT API (file) 34 detected (malicious, high confidence, Vvrg, confidence, 100%, ZemsilF, km3@aOJiFto, Attribute, HighConfidence, score, Reline, FileRepMalware, Ader, Qqil, Gen9, Static AI, Malicious PE, Casdet, KAJQFS, Detected, Artemis, unsafe, Chgt, R002H0DEM23, CLOUD)
md5 e2ca6f8e77cbaa4a7adf56242880a30c
sha256 78a2f84f683c6764f5efe5e083b538e944cdb645b2a0ed9ec968644f59aa460b
ssdeep 1536:/6TizBVEjB1904v70xbWlMjUUdIDfY+pn72VmUl4tIk6o9NbWNEqp01Zhi6Tiz:/6mzBjGKbS0cfPp25wNF71Zhi6mz
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (19cnts)

Level Description
danger File has been identified by 34 AntiVirus engines on VirusTotal as malicious
watch Communicates with host for which no DNS query was performed
watch Created a process named as a common system process
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 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 Looks up the external IP address
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 Uses Windows APIs to generate a cryptographic key

Rules (15cnts)

Level Name Description Collection
danger PWS_CnC_binary_Zero Communications PWS network binaries (download)
danger Win32_Trojan_Emotet_2_Zero Win32 Trojan Emotet binaries (download)
watch Malicious_Packer_Zero Malicious Packer binaries (upload)
watch UPX_Zero UPX packed file binaries (download)
watch UPX_Zero UPX packed file binaries (upload)
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (download)
info Is_DotNET_EXE (no description) binaries (download)
info Is_DotNET_EXE (no description) binaries (upload)
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 Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (download)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (21cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://94.142.138.111/concerts/2.php RU Ihor Hosting LLC 94.142.138.111 32678 mailcious
http://94.142.138.111/concerts/13.php RU Ihor Hosting LLC 94.142.138.111 32689 mailcious
http://94.142.138.111/concerts/10.php RU Ihor Hosting LLC 94.142.138.111 32686 mailcious
http://ip-api.com/json/ US TUT-AS 208.95.112.1 clean
http://94.142.138.111/concerts/9.php RU Ihor Hosting LLC 94.142.138.111 32685 mailcious
http://94.142.138.111/concerts/11.php RU Ihor Hosting LLC 94.142.138.111 32687 mailcious
http://94.142.138.111/concerts/8.php RU Ihor Hosting LLC 94.142.138.111 32684 mailcious
http://94.142.138.111/concerts/6.php RU Ihor Hosting LLC 94.142.138.111 32682 mailcious
http://94.142.138.111/concerts/4.php RU Ihor Hosting LLC 94.142.138.111 32680 mailcious
http://94.142.138.111/concerts/1.php RU Ihor Hosting LLC 94.142.138.111 32677 mailcious
http://94.142.138.111/software/bld_3s.exe RU Ihor Hosting LLC 94.142.138.111 clean
http://94.142.138.111/concerts/12.php RU Ihor Hosting LLC 94.142.138.111 32688 mailcious
http://94.142.138.111/concerts/7.php RU Ihor Hosting LLC 94.142.138.111 32683 mailcious
http://94.142.138.111/concerts/5.php RU Ihor Hosting LLC 94.142.138.111 32681 mailcious
http://ipwhois.app/xml/ SG None 103.126.138.87 clean
http://94.142.138.111/concerts/3.php RU Ihor Hosting LLC 94.142.138.111 32679 mailcious
ipwhois.app SG None 103.126.138.87 clean
ip-api.com US TUT-AS 208.95.112.1 clean
103.126.138.87 SG None 103.126.138.87 clean
94.142.138.111 RU Ihor Hosting LLC 94.142.138.111 malware
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