Report - rrrem.exe

AgentTesla RAT PWS .NET framework browser info stealer Generic Malware Google Chrome User Data UPX Antivirus Socket Create Service Sniff Audio Escalate priviledges KeyLogger Code injection Downloader AntiDebug AntiVM PE File PE32 .NET EXE
ScreenShot
Created 2021.09.08 09:58 Machine s1_win7_x6401
Filename rrrem.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
8
Behavior Score
14.4
ZERO API file : malware
VT API (file) 17 detected (malicious, high confidence, Bulz, Eldorado, Attribute, HighConfidence, ai score=83, Static AI, Malicious PE, Unsafe, Score, ZemsilF, jn0@am27@e, susgen)
md5 c4ffb0ae8bc377ff6062360971fb1037
sha256 4a8ae1e4845f9d27041cef35528f245961cd8b25399096d661d0d93df97375ce
ssdeep 24576:pVLpXk+b6umJBDAJeqtgisjK1olV3mHKzzkc:pVLfqBDAfgiW9NU8
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (29cnts)

Level Description
danger Connects to IP addresses that are no longer responding to requests (legitimate services will remain up-and-running usually)
danger Executed a process and injected code into it
warning Generates some ICMP traffic
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 Communicates with host for which no DNS query was performed
watch File has been identified by 17 AntiVirus engines on VirusTotal as malicious
watch One or more of the buffers contains an embedded PE file
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 The process powershell.exe wrote an executable file to disk
watch Used NtSetContextThread to modify a thread in a remote process indicative of process injection
notice A process attempted to delay the analysis task.
notice A process created a hidden window
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 Creates a shortcut to an executable file
notice Creates a suspicious process
notice Executes one or more WMI queries
notice One or more potentially interesting buffers were extracted
notice Potentially malicious URLs were found in the process memory dump
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 Command line console output was observed
info One or more processes crashed
info Queries for the computername
info Uses Windows APIs to generate a cryptographic key

Rules (28cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (download)
warning Generic_Malware_Zero Generic Malware binaries (upload)
warning infoStealer_browser_Zero browser info stealer memory
watch Antivirus Contains references to security software binaries (download)
watch Chrome_User_Data_Check_Zero Google Chrome User Data Check memory
watch Network_Downloader File Downloader memory
watch UPX_Zero UPX packed file binaries (upload)
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (upload)
notice Code_injection Code injection with CreateRemoteThread in a remote process memory
notice Create_Service Create a windows service memory
notice Escalate_priviledges Escalate priviledges memory
notice KeyLogger Run a KeyLogger memory
notice Network_TCP_Socket Communications over RAW Socket memory
notice Sniff_Audio Record Audio memory
info anti_dbg Checks if being debugged memory
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_hook Affect hook table memory
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)
info Win_Trojan_agentTesla_Zero Win.Trojan.agentTesla memory

Network (11cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
facebook.com US FACEBOOK 157.240.215.35 clean
google.com US GOOGLE 172.217.175.78 clean
outlook.com US MICROSOFT-CORP-MSN-AS-BLOCK 40.97.156.114 clean
bing.com US MICROSOFT-CORP-MSN-AS-BLOCK 204.79.197.200 clean
youtube.com US GOOGLE 172.217.175.14 clean
142.250.204.78 US GOOGLE 142.250.204.78 clean
13.107.21.200 US MICROSOFT-CORP-MSN-AS-BLOCK 13.107.21.200 clean
79.134.225.77 CH Fink Telecom Services 79.134.225.77 mailcious
172.217.31.142 US GOOGLE 172.217.31.142 phishing
40.97.116.82 US MICROSOFT-CORP-MSN-AS-BLOCK 40.97.116.82 clean
157.240.215.35 US FACEBOOK 157.240.215.35 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