Report - Document1 - Microsoft Word.docx.exe

AsyncRAT backdoor AntiDebug AntiVM PE File .NET EXE PE32 PNG Format MSOffice File GIF Format JPEG Format
ScreenShot
Created 2021.06.11 11:09 Machine s1_win7_x6402
Filename Document1 - Microsoft Word.docx.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
3
Behavior Score
10.4
ZERO API file : clean
VT API (file) 46 detected (Artemis, malicious, confidence, Kladun, AFPP, Attribute, HighConfidence, score, Razy, hxxxck, Swlc, odago, MulDrop15, R002C0WI320, qlul, Shaosmine, ai score=85, Unsafe, 24+odmxq0Ic, ZemsilCO, @p0@aGr, GdSda)
md5 55a8f69da427110755203118b875f9a0
sha256 640a626ae3f4d33a3cdc1d5b15343c880078058aac21a961b5fc561ce03d6424
ssdeep 196608:Y8UXPD5lt5gQbzW7WJuVQV4DLf9JAVYdy8AAunhu:/UXVzAgqD9u38AA4
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (24cnts)

Level Description
danger File has been identified by 46 AntiVirus engines on VirusTotal as malicious
danger Executed a process and injected code into it
watch Communicates with host for which no DNS query was performed
watch Installs itself for autorun at Windows startup
watch Resumed a suspended thread in a remote process potentially indicative of process injection
notice Allocates read-write-execute memory (usually to unpack itself)
notice An application raised an exception which may be indicative of an exploit crash
notice Changes read-write memory protection to read-execute (probably to avoid detection when setting all RWX flags at the same time)
notice Checks for the Locally Unique Identifier on the system for a suspicious privilege
notice Checks whether any human activity is being performed by constantly checking whether the foreground window changed
notice Creates a shortcut to an executable file
notice Creates executable files on the filesystem
notice One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
notice Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation
notice The binary likely contains encrypted or compressed data indicative of a packer
notice Uses Windows utilities for basic Windows functionality
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 This executable has a PDB path
info Uses Windows APIs to generate a cryptographic key

Rules (16cnts)

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 Is_DotNET_EXE (no description) binaries (upload)
info IsPE32 (no description) binaries (upload)
info JPEG_Format_Zero JPEG Format binaries (download)
info Lnk_Format_Zero LNK Format binaries (download)
info Microsoft_Office_File_Zero Microsoft Office File binaries (download)
info PE_Header_Zero PE File Signature binaries (upload)
info PNG_Format_Zero PNG Format binaries (download)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (46cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
https://www.youtube.com/s/desktop/8cab6c66/cssbin/www-main-desktop-watch-page-skeleton.css US GOOGLE 216.58.220.206 clean
https://www.youtube.com/error_204?t=jserror&level=ERROR&client.name=1&client.version=2.20210609.00.00&msg=%EA%B0%9C%EC%B2%B4%EA%B0%80%20%ED%95%84%EC%9A%94%ED%95%A9%EB%8B%88%EB%8B%A4.&type=Error&client.params=unhandled%20window%20error&file=https%3A%2F%2Fw US GOOGLE 216.58.220.206 clean
https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmEU9fBBc-.woff US GOOGLE 142.250.204.99 clean
https://www.youtube.com/s/desktop/8cab6c66/jsbin/network.vflset/network.js US GOOGLE 216.58.220.206 clean
https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmWUlfBBc-.woff US GOOGLE 142.250.204.99 clean
https://www.youtube.com/s/desktop/8cab6c66/jsbin/webcomponents-all-noPatch.vflset/webcomponents-all-noPatch.js US GOOGLE 216.58.220.206 clean
https://www.youtube.com/s/desktop/8cab6c66/jsbin/desktop_polymer_legacy_browsers.vflset/desktop_polymer_legacy_browsers.js US GOOGLE 216.58.220.206 clean
https://www.youtube.com/s/desktop/8cab6c66/jsbin/spf.vflset/spf.js US GOOGLE 216.58.220.206 clean
https://www.youtube.com/s/player/a0094ae9/player_ias.vflset/ko_KR/base.js US GOOGLE 216.58.220.206 clean
https://fonts.gstatic.com/s/roboto/v27/KFOmCnqEu92Fr1Mu4mxM.woff US GOOGLE 142.250.204.99 clean
https://www.youtube.com/s/desktop/8cab6c66/jsbin/www-i18n-constants-ko_KR.vflset/www-i18n-constants.js US GOOGLE 216.58.220.206 clean
https://i.ytimg.com/generate_204 US GOOGLE 172.217.161.182 clean
https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmSU5fBBc-.woff US GOOGLE 142.250.204.99 clean
https://www.youtube.com/error_204?t=jserror&level=ERROR&client.name=1&client.version=2.20210609.00.00&msg='Uint8Array'%EC%9D%B4(%EA%B0%80)%20%EC%A0%95%EC%9D%98%EB%90%98%EC%A7%80%20%EC%95%8A%EC%95%98%EC%8A%B5%EB%8B%88%EB%8B%A4.&type=Error&client.params=unh US GOOGLE 216.58.220.206 clean
https://www.youtube.com/s/desktop/8cab6c66/img/favicon.ico US GOOGLE 216.58.220.206 clean
https://r2---sn-3u-bh2le.googlevideo.com/generate_204?conn2 KR Korea Telecom 59.18.35.205 clean
https://fonts.googleapis.com/css?family=Roboto:500,300,700,400|YouTube+Sans:400,500,700 US GOOGLE 172.217.174.202 clean
https://www.youtube.com/s/player/a0094ae9/www-player.css US GOOGLE 216.58.220.206 clean
https://www.youtube.com/s/desktop/8cab6c66/cssbin/www-onepick.css US GOOGLE 216.58.220.206 clean
https://www.youtube.com/s/desktop/8cab6c66/cssbin/www-main-desktop-player-skeleton.css US GOOGLE 216.58.220.206 clean
https://www.youtube.com/s/desktop/8cab6c66/jsbin/fetch-polyfill.vflset/fetch-polyfill.js US GOOGLE 216.58.220.206 clean
https://www.youtube.com/watch?v=Ml5L20bWCts US GOOGLE 216.58.220.206 clean
https://www.youtube.com/watch?v=Z1nufRLDQMU US GOOGLE 216.58.220.206 clean
https://www.youtube.com/s/desktop/8cab6c66/jsbin/scheduler.vflset/scheduler.js US GOOGLE 216.58.220.206 clean
https://www.youtube.com/watch?v=ZO2GU7cRrA8 US GOOGLE 216.58.220.206 clean
https://www.youtube.com/s/desktop/8cab6c66/jsbin/web-animations-next-lite.min.vflset/web-animations-next-lite.min.js US GOOGLE 216.58.220.206 clean
https://www.youtube.com/error_204?t=jserror&level=ERROR&client.name=1&client.version=2.20210609.00.00&msg='MutationObserver'%EC%9D%B4(%EA%B0%80)%20%EC%A0%95%EC%9D%98%EB%90%98%EC%A7%80%20%EC%95%8A%EC%95%98%EC%8A%B5%EB%8B%88%EB%8B%A4.&type=Error&client.para US GOOGLE 216.58.220.206 clean
https://accounts.google.com/ServiceLogin?service=youtube&uilel=3&passive=true&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Faction_handle_signin%3Dtrue%26app%3Ddesktop%26hl%3Dko%26next%3D%252Fsignin_passive%26feature%3Dpassive&hl=ko US GOOGLE 142.250.204.109 clean
ssl.gstatic.com US GOOGLE 172.217.27.67 clean
r6---sn-3u-bh2lr.googlevideo.com KR Korea Telecom 59.18.30.209 clean
www.youtube.com US GOOGLE 172.217.25.110 clean
fonts.googleapis.com US GOOGLE 216.58.220.138 clean
r2---sn-3u-bh2le.googlevideo.com KR Korea Telecom 59.18.35.205 clean
i.ytimg.com US GOOGLE 172.217.25.118 clean
r8---sn-3u-bh2el.googlevideo.com KR Korea Telecom 59.18.49.83 clean
accounts.google.com US GOOGLE 172.217.161.77 clean
fonts.gstatic.com US GOOGLE 172.217.26.3 clean
142.250.204.109 US GOOGLE 142.250.204.109 clean
172.217.174.202 US GOOGLE 172.217.174.202 clean
59.18.49.83 KR Korea Telecom 59.18.49.83 clean
216.58.220.206 US GOOGLE 216.58.220.206 suspicious
59.18.30.209 KR Korea Telecom 59.18.30.209 clean
142.250.199.67 US GOOGLE 142.250.199.67 clean
59.18.35.205 KR Korea Telecom 59.18.35.205 clean
172.217.161.182 US GOOGLE 172.217.161.182 clean
142.250.204.99 US GOOGLE 142.250.204.99 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