Report - 777.exe

Malicious Library PE32 PE File
ScreenShot
Created 2023.04.03 08:24 Machine s1_win7_x6401
Filename 777.exe
Type PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows
AI Score
9
Behavior Score
4.0
ZERO API file : malware
VT API (file)
md5 44f50973ac66fd83be9411d6ab53446f
sha256 6a97f44c2a3d62603e7870723ee797abd5d2af53e12662f0d9e0ca3c1d82e297
ssdeep 24576:uyDoTqctaY5effnW8RDsXOvvYh1BKy7ILN7qxx+HP288pu3WPs2/:uwoTpE/WwDIngzRqI8p0R2/
imphash 73ec795c6c369c6ce2c3b4c3f6477daa
impfuzzy 12:oAR0DaGsfGhqRJRke2V4TKLRmLF+Sg/m4T:B0DaLft2V4T/+Sg/1T
  Network IP location

Signature (11cnts)

Level Description
watch Communicates with host for which no DNS query was performed
notice Allocates read-write-execute memory (usually to unpack itself)
notice Changes read-write memory protection to read-execute (probably to avoid detection when setting all RWX flags at the same time)
notice Foreign language identified in PE resource
notice Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation
notice Repeatedly searches for a not-found process
notice Searches running processes potentially to identify processes for sandbox evasion
notice The binary likely contains encrypted or compressed data indicative of a packer
info Checks amount of memory in system
info The executable contains unknown PE section names indicative of a packer (could be a false positive)
info The executable uses a known packer

Rules (3cnts)

Level Name Description Collection
watch Malicious_Library_Zero Malicious_Library binaries (upload)
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature binaries (upload)

Network (1cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
192.253.237.20 US BGPNET Global ASN 192.253.237.20 clean

Suricata ids

PE API

IAT(Import Address Table) Library

KERNEL32.dll
 0x605000 lstrcatA
 0x605004 InitializeCriticalSection
 0x605008 GetProcAddress
 0x60500c LocalFree
 0x605010 RaiseException
 0x605014 LocalAlloc
 0x605018 GetModuleHandleA
 0x60501c LeaveCriticalSection
 0x605020 EnterCriticalSection
 0x605024 DuplicateHandle
 0x605028 GetShortPathNameA
 0x60502c ResumeThread
 0x605030 WriteProcessMemory
 0x605034 GetPrivateProfileSectionA
 0x605038 GetStringTypeA
 0x60503c LCMapStringW
 0x605040 LCMapStringA
 0x605044 RtlUnwind
 0x605048 WideCharToMultiByte
 0x60504c MultiByteToWideChar
 0x605050 GetStringTypeW
USER32.dll
 0x605058 DefWindowProcA
 0x60505c AdjustWindowRectEx

EAT(Export Address Table) is none



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