Report - ChromeSetup.exe

Client SW User Data Stealer Backdoor RemcosRAT browser info stealer Google Chrome User Data Downloader ScreenShot Create Service Socket Escalate priviledges PWS Sniff Audio DNS Internet API KeyLogger AntiDebug AntiVM .NET EXE PE File PE32
ScreenShot
Created 2023.07.26 17:33 Machine s1_win7_x6401
Filename ChromeSetup.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
7
Behavior Score
15.8
ZERO API
VT API (file) 24 detected (unsafe, malicious, confidence, Attribute, HighConfidence, high confidence, score, Seraph, PWSX, AGEN, moderate, Detected, MachineLearning, Anomalous, 100%, Static AI, Malicious PE, ZemsilF, gm0@aKZ@dJc)
md5 cca558a61d6125ecd91f1f5b9b3070a5
sha256 3f0f7847996e9d8ef9f875c1c20dafd17ecb2a3eee860b2d08ac5eabab631b4d
ssdeep 768:VO/J2ZWAJYp40oxU5apArUinBKj+Qkw4ll3n+eUTxsxK:e2MAJTJO5aarbn8j1J4fn+eUFMK
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (33cnts)

Level Description
danger Executed a process and injected code into it
warning File has been identified by 24 AntiVirus engines on VirusTotal as malicious
watch A process attempted to delay the analysis task.
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 Creates a windows hook that monitors keyboard input (keylogger)
watch Deletes executed files from disk
watch Harvests credentials from local email clients
watch Harvests information related to installed instant messenger clients
watch Installs itself for autorun at Windows startup
watch Looks for the Windows Idle Time to determine the uptime
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 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 adapter addresses which can be used to detect virtual network interfaces
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 Queries for potentially installed applications
notice Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation
notice Searches running processes potentially to identify processes for sandbox evasion
notice Steals private information from local Internet browsers
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 Queries for the computername
info Tries to locate where the browsers are installed
info Uses Windows APIs to generate a cryptographic key

Rules (26cnts)

Level Name Description Collection
danger Client_SW_User_Data_Stealer Client_SW_User_Data_Stealer memory
danger Win_Backdoor_RemcosRAT Win Backdoor RemcosRAT memory
warning infoStealer_browser_Zero browser info stealer memory
watch Chrome_User_Data_Check_Zero Google Chrome User Data Check memory
watch Network_Downloader File Downloader memory
notice Create_Service Create a windows service memory
notice Escalate_priviledges Escalate priviledges memory
notice Generic_PWS_Memory_Zero PWS Memory memory
notice KeyLogger Run a KeyLogger memory
notice Network_DNS Communications use DNS memory
notice Network_TCP_Socket Communications over RAW Socket memory
notice ScreenShot Take ScreenShot memory
notice Sniff_Audio Record Audio memory
notice Str_Win32_Internet_API Match Windows Inet API call 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

Network (7cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://geoplugin.net/json.gp NL Schuberg Philis B.V. 178.237.33.50
http://31.42.186.198/4/panel/panel/uploads/Ncyfnyvi.mp3 Unknown 31.42.186.198
geoplugin.net NL Schuberg Philis B.V. 178.237.33.50
verem.remcacount.co EE EstNOC OY 185.195.237.203
31.42.186.198 Unknown 31.42.186.198
178.237.33.50 NL Schuberg Philis B.V. 178.237.33.50
185.195.237.203 EE EstNOC OY 185.195.237.203

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