Report - Dianthus.exe

Azorult .NET framework AsyncRAT backdoor
ScreenShot
Created 2021.04.08 18:08 Machine s1_win7_x6401
Filename Dianthus.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
9
Behavior Score
11.2
ZERO API file : malware
VT API (file) 33 detected (malicious, high confidence, GenericKDZ, GenericRXOD, DropperX, Seraph, dGZlOg2VEnUKr0KKww, Siggen2, susgen, Small, ai score=82, Redline, score, Unsafe, 100%, ZemsilF, cm0@a0PzwKj, confidence)
md5 77dfc735d37c3f44ab13d253ccd5417c
sha256 802c523228e29013b5b60c643272ba0c837a7de3902c55424d7779535309a235
ssdeep 768:LzSH3iuh2l6b3xa1XX8ZUa9agkTfzbFdADwj6eXnn3cmF:aRUlshWn8aa9aRjheEn3z
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (25cnts)

Level Description
danger Executed a process and injected code into it
danger File has been identified by 33 AntiVirus engines on VirusTotal as malicious
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 Collects information about installed applications
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 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 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 for potentially installed applications
notice Resolves a suspicious Top Level Domain (TLD)
notice Sends data using the HTTP POST Method
notice Steals private information from local Internet browsers
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
info Tries to locate where the browsers are installed
info Uses Windows APIs to generate a cryptographic key

Rules (18cnts)

Level Name Description Collection
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 IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature Zero binaries (upload)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory
info HasDebugData DebugData Check binaries (upload)
info IsNET_EXE (no description) binaries (upload)
info IsWindowsGUI (no description) binaries (upload)
info network_tcp_listen Listen for incoming communication memory
info screenshot Take screenshot binaries (upload)
info Win32_Trojan_PWS_Azorult_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (upload)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)
info win_files_operation Affect private profile memory

Network (9cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://ynnnzonie.xyz/ US None 104.217.62.116 clean
https://ry.beablog.ru/SystemComponentModelDesignerCategoryAttributeE RU JSC RTComm.RU 81.177.140.169 clean
https://api.ip.sb/geoip US CLOUDFLARENET 172.67.75.172 clean
ry.beablog.ru RU JSC RTComm.RU 81.177.140.169 clean
ynnnzonie.xyz US None 104.217.62.116 clean
api.ip.sb US CLOUDFLARENET 104.26.13.31 clean
104.217.62.116 US None 104.217.62.116 clean
172.67.75.172 US CLOUDFLARENET 172.67.75.172 clean
81.177.140.169 RU JSC RTComm.RU 81.177.140.169 mailcious

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