Report - VLTKTanthuTN.exe

RAT PWS .NET framework Generic Malware Malicious Packer PE File PE32 .NET EXE
ScreenShot
Created 2021.10.15 09:15 Machine s1_win7_x6402
Filename VLTKTanthuTN.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
7
Behavior Score
9.0
ZERO API file : clean
VT API (file) 15 detected (malicious, high confidence, Unsafe, Save, confidence, Generic ML PUA, Sabsik, HeapOverride, Static AI, Malicious PE, Score, ZemsilF, Qv0@aasMxYn, susgen)
md5 72ae1ef77048260282b4e791eede5e3c
sha256 431ec8528e6344c0abf90147e86180ba16c3bbeb6ef70786c66c0d4044ef82a2
ssdeep 49152:HH9XrEkAP+3PcarS1Qo2biNplvpQtK6Kti:HH97EBW3PcaOjNJQtK6Kti
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (19cnts)

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 Creates a windows hook that monitors keyboard input (keylogger)
watch File has been identified by 15 AntiVirus engines on VirusTotal as malicious
watch Manipulates memory of a non-child process indicative of process injection
watch Potential code injection by writing to the memory of another process
notice A process attempted to delay the analysis task.
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 Checks whether any human activity is being performed by constantly checking whether the foreground window changed
notice HTTP traffic contains suspicious features which may be indicative of malware related traffic
notice Performs some HTTP requests
notice The binary likely contains encrypted or compressed data indicative of a packer
info Checks amount of memory in system
info Checks if process is being debugged by a debugger
info One or more processes crashed
info The executable contains unknown PE section names indicative of a packer (could be a false positive)

Rules (7cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (upload)
watch Malicious_Packer_Zero Malicious Packer binaries (upload)
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (upload)
info Is_DotNET_EXE (no description) binaries (upload)
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature binaries (upload)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (17cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://free.timeanddate.com/clock/i3jl68nm/n246/tlir/tt0/tw0/tm3/th1 US FASTLY 151.101.193.176 clean
http://kimyen.net/vltk/tanthu/VLTKTanthuPb.txt VN VNPT Corp 103.255.237.239 clean
http://kimyen.info/vltk/tanthu/VLTKTanthuPb.txt VN NhanHoa Software company 103.28.36.10 clean
time.nist.gov US US-NATIONAL-INSTITUTE-OF-STANDARDS-AND-TECHNOLOGY 132.163.96.2 clean
kimyen.info VN NhanHoa Software company 103.28.36.10 clean
utcnist.colorado.edu US COLORADO-AS 128.138.140.44 clean
time.ien.it IT Consortium GARR 193.204.114.105 clean
ptbtime1.ptb.de DE Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 192.53.103.108 clean
free.timeanddate.com US FASTLY 151.101.193.176 clean
kimyen.net VN VNPT Corp 103.255.237.239 malware
128.138.140.44 US COLORADO-AS 128.138.140.44 clean
103.28.36.10 VN NhanHoa Software company 103.28.36.10 clean
146.75.49.176 Unknown 146.75.49.176 clean
128.138.141.172 US COLORADO-AS 128.138.141.172 clean
103.255.237.239 VN VNPT Corp 103.255.237.239 malware
192.53.103.108 DE Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 192.53.103.108 clean
193.204.114.105 IT Consortium GARR 193.204.114.105 clean

Suricata ids

PE API

IAT(Import Address Table) Library

mscoree.dll
 0x5b0000 _CorExeMain

EAT(Export Address Table) is none



Similarity measure (PE file only) - Checking for service failure