Report - Lammer.exe

.NET EXE PE File PE32
ScreenShot
Created 2021.05.26 17:49 Machine s1_win7_x6401
Filename Lammer.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
12
Behavior Score
5.8
ZERO API file : clean
VT API (file) 36 detected (malicious, high confidence, Razy, Unsafe, Save, ZemsilF, fmW@aqTN6tc, Kryptik, Eldorado, Attribute, HighConfidence, Generic ML PUA, Bladabindi, Ditertag, score, FSKC, ai score=84, NJRat, Static AI, Malicious PE, GenKryptik, CRCM, susgen, confidence, 100%)
md5 49545f0af79ded22054bfd851bb3d864
sha256 004cae62d64d4fd40532660626ef95b5c5a899de64e060f9e6223974219ef080
ssdeep 1536:cN0ORWXZVbYkEGS8jIc0+9X3fW/UKT3Zwr5mnBC0jGQ44UGyMaD2JBcwlbctgKs:c1EX/bXEGS8j3f/m2tmnBfhUGyMaD2Jh
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (11cnts)

Level Description
danger Connects to IP addresses that are no longer responding to requests (legitimate services will remain up-and-running usually)
danger File has been identified by 36 AntiVirus engines on VirusTotal as malicious
watch Created a process named as a common system process
notice Allocates read-write-execute memory (usually to unpack itself)
notice Connects to a Dynamic DNS Domain
notice Creates executable files on the filesystem
notice Drops a binary and executes it
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 Command line console output was observed

Rules (6cnts)

Level Name Description Collection
info Is_DotNET_EXE (no description) binaries (download)
info Is_DotNET_EXE (no description) binaries (upload)
info IsPE32 (no description) binaries (download)
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature binaries (download)
info PE_Header_Zero PE File Signature binaries (upload)

Network (2cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
pegarvitimas2021wr.duckdns.org BR SISTEL FIBRA SERVICOS DE COMUNICACAO MULTIMIDIA LT 45.186.199.29 clean
45.186.199.29 BR SISTEL FIBRA SERVICOS DE COMUNICACAO MULTIMIDIA LT 45.186.199.29 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