Report - rundll32.exe

RAT PWS .NET framework Generic Malware AntiDebug AntiVM PE File PE32 .NET EXE
ScreenShot
Created 2021.11.07 10:20 Machine s1_win7_x6403
Filename rundll32.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
7
Behavior Score
8.2
ZERO API file : clean
VT API (file) 27 detected (Artemis, Kryptik, Eldorado, ADJP, Malicious, Noon, GenericKD, MalwareX, Siggen15, susgen, ai score=84, Sabsik, FormBook, YB1PZJ, Unsafe, GenKryptik, FNAJ, confidence)
md5 3405753ab2f4f4f4560b9376bcff7676
sha256 6b9d128b143bc2ec8b72ac36891a5b12887f182de44ae5e367c0a486b774a59f
ssdeep 6144:lSOHnkMU11oVGHXkjWGL/9vycQxEwNPiPl/jV2nHSTYlT:QOHnknoVGUzJv4Ewg1jVkHeY1
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (17cnts)

Level Description
danger Executed a process and injected code into it
warning File has been identified by 27 AntiVirus engines on VirusTotal as malicious
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 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 (13cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (upload)
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult 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
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (17cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://www.benisano.com/fqiq/?b6=1FzMW+0+OiUuFtKwwdX+18qfmmqzzEGxfDkpxhvrj8NPxWXEAOb928cDHixNpwT1SnXUPxEA&DbG=_DKdFj US COGENT-174 154.55.180.142 7072 clean
http://www.healthyweekendtips.com/fqiq/?b6=nFNrhldW1G3Iuc6NBw1UbSwwpktYb/50pHeyo/0a7tjLnrEnAw7KG36PTjcGJ5KEduXnU9Wd&DbG=_DKdFj US CLOUDFLARENET 104.21.78.41 6446 mailcious
http://www.mambacustomboats.com/fqiq/?b6=oM7C4s4IgTsCMDsM97tedYlymorHgm5Kv3M2/2amrfi4uqOFLGFzoQjLNIK3nvWL7hHP1K8A&DbG=_DKdFj Unknown 64.190.62.111 clean
http://www.qianhaijcc.com/fqiq/?b6=+GyJfJw7hTzGSWjLzSxzubcql+EX4XT+GbaCNiPPdvi0qO0hFgG0Ehnd2eXgZFp2PjMwiybO&DbG=_DKdFj US LEASEWEB-USA-LAX-11 23.110.31.106 7360 clean
http://www.farmersfirstseed.com/fqiq/?b6=LbdaYrSs38N8uIwY7oVDq2uzukwE8JpfT85YdDwPyg/SznV3VAz0OihEXjn7VBiJtsEJeDaz&DbG=_DKdFj US GOOGLE 34.102.136.180 clean
www.shenjiclass.com Unknown mailcious
www.begukiu0.info Unknown clean
www.healthyweekendtips.com US CLOUDFLARENET 172.67.216.2 clean
www.mambacustomboats.com Unknown 64.190.62.111 clean
www.benisano.com US COGENT-174 154.55.180.142 clean
www.qianhaijcc.com US LEASEWEB-USA-LAX-11 23.110.31.106 clean
www.farmersfirstseed.com US GOOGLE 34.102.136.180 clean
104.21.78.41 US CLOUDFLARENET 104.21.78.41 phishing
23.110.31.106 US LEASEWEB-USA-LAX-11 23.110.31.106 clean
34.102.136.180 US GOOGLE 34.102.136.180 mailcious
64.190.62.111 Unknown 64.190.62.111 mailcious
154.55.180.142 US COGENT-174 154.55.180.142 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