Report - cortana.exe

RAT PWS .NET framework Generic Malware SMTP KeyLogger AntiDebug AntiVM PE File PE32 .NET EXE
ScreenShot
Created 2021.10.21 18:25 Machine s1_win7_x6401
Filename cortana.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
10
Behavior Score
9.6
ZERO API file : clean
VT API (file) 37 detected (Agensla, malicious, high confidence, GenericKD, Save, confidence, 100%, Kryptik, ali2000016, Eldorado, AGen, PWSX, PackedNET, Static AI, Suspicious PE, Redcap, nhsdz, Woreflint, score, TScope, ai score=82, R002H0CJI21, qqpass, Qqrob, Wopt, AvsArher, bTJEKx, GdSda)
md5 6c11f38adec40c226ba26d9d0d505b45
sha256 ca2e0c4c5d77ac010eac33e309b31022a08125703ac87a71c319ab50d946aa6b
ssdeep 12288:RZqxsXHfROuQLBiUUNnLsB+RgNCwaiDURQaTxA:iqX/RlQqejNdaiQRQatA
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (19cnts)

Level Description
danger Executed a process and injected code into it
danger File has been identified by 37 AntiVirus engines on VirusTotal as malicious
watch A process attempted to delay the analysis task.
watch Allocates execute permission to another process indicative of possible code injection
watch Code injection by writing an executable or DLL to the memory of another process
watch Looks for the Windows Idle Time to determine the uptime
watch One or more of the buffers contains an embedded PE file
watch Potential code injection by writing to the memory of another process
watch Resumed a suspended thread in a remote process potentially indicative of process injection
watch Used NtSetContextThread to modify a thread in a remote process indicative of process injection
notice Allocates read-write-execute memory (usually to unpack itself)
notice Checks for the Locally Unique Identifier on the system for a suspicious privilege
notice One or more potentially interesting buffers were extracted
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 Checks if process is being debugged by a debugger
info One or more processes crashed
info Queries for the computername

Rules (16cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (upload)
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (upload)
notice KeyLogger Run a KeyLogger memory
notice Network_SMTP_dotNet Communications smtp 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 IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature binaries (upload)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory
info win_hook Affect hook table memory
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (0cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?

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