Report - 0551038.exe

PWS Loki[b] Loki[m] AsyncRAT backdoor Gen1 Gen2 DNS Socket HTTP KeyLogger Http API Internet API ScreenShot AntiDebug AntiVM .NET EXE PE File PE32 DLL OS Processor Check
ScreenShot
Created 2021.05.26 09:40 Machine s1_win7_x6401
Filename 0551038.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
9
Behavior Score
10.4
ZERO API file : malware
VT API (file) 10 detected (malicious, high confidence, Save, EPKO, susgen, Wacapew, MachineLearning, Anomalous, ZemsilF, km0@aezheFk)
md5 c43aa3df483f13d1690fa6d26b38c203
sha256 ff02f3af7f48e2c04f6e6026a7bfe11697625b0963c2751b4aa0597a4528a67b
ssdeep 3072:9EZe3Ps0yeGQDSfFKe0HCQdseKrxXM04P0E+r+s1M:9X3P0bZV0iSIXM0S0E+B
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (24cnts)

Level Description
watch Appends a known CryptoMix ransomware file extension to files that have been encrypted
watch Attempts to access Bitcoin/ALTCoin wallets
watch Checks the CPU name from registry
watch Collects information about installed applications
watch File has been identified by 10 AntiVirus engines on VirusTotal as malicious
watch Harvests credentials from local email clients
watch Harvests credentials from local FTP client softwares
watch Harvests information related to installed instant messenger clients
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 HTTP traffic contains suspicious features which may be indicative of malware related traffic
notice Performs some HTTP requests
notice Potentially malicious URLs were found in the process memory dump
notice Queries for potentially installed applications
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
notice The binary likely contains encrypted or compressed data indicative of a packer
notice Yara rule detected in process memory
info Checks amount of memory in system
info Collects information to fingerprint the system (MachineGuid
info Queries for the computername
info Tries to locate where the browsers are installed

Rules (26cnts)

Level Name Description Collection
danger Win32_PWS_Loki_Zero Win32 PWS Loki memory
danger Win32_Trojan_Gen_1_0904B0_Zero Win32 Trojan Emotet binaries (download)
notice KeyLogger Run a KeyLogger memory
notice Network_DNS Communications use DNS memory
notice Network_HTTP Communications over HTTP memory
notice Network_TCP_Socket Communications over RAW Socket memory
notice ScreenShot Take ScreenShot memory
notice Str_Win32_Http_API Match Windows Http API call memory
notice Str_Win32_Internet_API Match Windows Inet API call memory
info anti_dbg Checks if being debugged memory
info DebuggerCheck__GlobalFlags (no description) memory
info DebuggerCheck__QueryInfo (no description) memory
info DebuggerHiding__Active (no description) memory
info DebuggerHiding__Thread (no description) memory
info disable_dep Bypass DEP memory
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)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory
info Win32_Trojan_Gen_2_0904B0_Zero Win32 Trojan Gen binaries (download)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (3cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://ahsanulalam.buet.ac.bd/bvyukiu/index.php BD Bangladesh University of Engineering and Technology 103.94.135.216 clean
ahsanulalam.buet.ac.bd BD Bangladesh University of Engineering and Technology 103.94.135.216 clean
103.94.135.216 BD Bangladesh University of Engineering and Technology 103.94.135.216 phishing

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