Report - rundll32.exe

Generic Malware AntiDebug AntiVM PE File PE32 .NET EXE
ScreenShot
Created 2021.10.05 17:48 Machine s1_win7_x6402
Filename rundll32.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
7
Behavior Score
8.0
ZERO API file : malware
VT API (file) 18 detected (malicious, high confidence, Bulz, Save, Malcode, gdn30, Sabsik, score, ai score=89, Static AI, Suspicious PE)
md5 1d6ee7c0d6d827f3d7ce131fd2c69d5d
sha256 0ab5b36920783c2ba772f2a06ef832e22c07a551043dbae2c33cfcf27b1b238e
ssdeep 6144:ZAvQ+3HwOqr5VF8W1JS/ELBCzwGbS0yawbA8gbxaZ1nK12jC57yRrJhXK8DAi15j:ZAIo4jFv4/EwQ0ya2Ax6TjCNy9NDN8w
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (17cnts)

Level Description
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 File has been identified by 18 AntiVirus engines on VirusTotal as malicious
watch Potential code injection by writing to the memory of another process
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 Allocates read-write-execute memory (usually to unpack itself)
notice Checks for the Locally Unique Identifier on the system for a suspicious privilege
notice HTTP traffic contains suspicious features which may be indicative of malware related traffic
notice One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
notice The binary likely contains encrypted or compressed data indicative of a packer
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 This executable has a PDB path

Rules (11cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (upload)
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 PE_Header_Zero PE File Signature binaries (upload)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory

Network (5cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://www.dorotajedrusik.com/cmsr/?ElS=cv8nmsghz/0G5fGTtWrlOCmFaMIR/3kPto7XDrfx1woCi+6kzviqAai4CoqhzgdePYFy6ZTo&Qtu=JnzpcdM03r_ No GOOGLE 34.80.190.141 clean
www.dorotajedrusik.com No GOOGLE 34.80.190.141 clean
www.healthyweathorganics.com HK Alibaba (US) Technology Co., Ltd. 47.91.170.222 clean
47.91.170.222 HK Alibaba (US) Technology Co., Ltd. 47.91.170.222 mailcious
34.80.190.141 No GOOGLE 34.80.190.141 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