Report - ashleyx.exe

AsyncRAT backdoor
ScreenShot
Created 2021.04.21 09:25 Machine s1_win7_x6402
Filename ashleyx.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
4
Behavior Score
15.6
ZERO API file : malware
VT API (file) 19 detected (malicious, high confidence, Artemis, Save, confidence, Kryptik, Eldorado, Attribute, HighConfidence, RATX, Androm, Siggen13, Unsafe, Score, Wacatac, ZemsilF, bm1@aq, wo5ki, QVM03)
md5 8bb6b2cd59a316a1b2509a53d9b7bed5
sha256 45f342177965d052df9ec6815ec967949c10e9a1e601ccd4859bc2f00600d8f9
ssdeep 384:SItiRIyE9O9vYiwumVrGW/q3q67PdeAovAXLWJLWfLWauheW:5tk17mrg3N04X6J6f6jheW
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (34cnts)

Level Description
danger Connects to an IP address that is no longer responding to requests (legitimate services will remain up-and-running usually)
danger Executed a process and injected code into it
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 Communicates with host for which no DNS query was performed
watch File has been identified by 19 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
watch Potential code injection by writing to the memory of another process
watch Putty Files
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 A process created a hidden window
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 a suspicious process
notice HTTP traffic contains suspicious features which may be indicative of malware related traffic
notice Moves the original executable to a new location
notice One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
notice Potentially malicious URLs were found in the process memory dump
notice Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation
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 Collects information to fingerprint the system (MachineGuid
info Command line console output was observed
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 HasOverlay Overlay Check binaries (upload)
info IsNET_EXE (no description) binaries (upload)
info IsWindowsGUI (no description) binaries (upload)
info network_dns Communications use DNS memory
info network_tcp_listen Listen for incoming communication memory
info Str_Win32_Winsock2_Library Match Winsock 2 API library declaration memory
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://edgedl.gvt1.com/edgedl/release2/chrome/AL5rs2UJAhI5hqZoF2YHW-w_89.0.4389.128/89.0.4389.128_chrome_installer.exe US GOOGLE 142.250.34.2 clean
http://mmwrlridbhmibnr.ml/liverpool-fc-news/features/steven-gerrard-liverpool-future-dalglish--goal-C74A40101EF9210BFD08B410CB832AFC.html US CLOUDFLARENET 172.67.220.147 clean
https://update.googleapis.com/service/update2?cup2key=10:3910824222&cup2hreq=dc950c06ee23db63ccbc6463d0953d7c049cb27465657b9d252c3381314707af US GOOGLE 142.250.204.35 clean
edgedl.gvt1.com US GOOGLE 142.250.34.2 clean
mmwrlridbhmibnr.ml US CLOUDFLARENET 104.21.86.143 clean
142.250.204.35 US GOOGLE 142.250.204.35 clean
172.67.220.147 US CLOUDFLARENET 172.67.220.147 clean
142.250.34.2 US GOOGLE 142.250.34.2 clean
51.195.53.221 FR OVH SAS 51.195.53.221 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