Report - jan11.exe

AsyncRAT backdoor
ScreenShot
Created 2021.03.29 17:58 Machine s1_win7_x6401
Filename jan11.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
6
Behavior Score
12.0
ZERO API file : clean
VT API (file) 14 detected (malicious, high confidence, Unsafe, Save, Static AI, Malicious PE, Wacapew, MachineLearning, Anomalous, Score, ZemsilF, ho0@a4A, QVM03, confidence, 100%)
md5 5368930e073889874745e520be58b06d
sha256 3c433cb1c5fbe7966fc5545c22a795866484b7bab4600598629939ed4a542b01
ssdeep 49152:2W/ExXa6l03M2hVE/5JF+gpUqQfSkrrvzlPo79L4NoJ5ROq5W:dEg6G3M8K/F+gIakvelQCOy
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (24cnts)

Level Description
danger Executed a process and injected code into it
watch A process attempted to delay the analysis task.
watch Allocates execute permission to another process indicative of possible code injection
watch Appends a known multi-family ransomware file extension to files that have been encrypted
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 File has been identified by 14 AntiVirus engines on VirusTotal as malicious
watch Installs an hook procedure to monitor for mouse events
watch Installs itself for autorun at Windows startup
watch Looks for the Windows Idle Time to determine the uptime
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 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 One or more processes crashed
info Queries for the computername

Rules (36cnts)

Level Name Description Collection
notice network_smtp_raw Communications smtp 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 DebuggerException__SetConsoleCtrl (no description) memory
info DebuggerHiding__Active (no description) memory
info DebuggerHiding__Thread (no description) memory
info disable_dep Bypass DEP memory
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature Zero binaries (upload)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory
info win_hook Affect hook table memory
info create_service Create a windows service memory
info escalate_priv Escalade priviledges memory
info inject_thread Code injection with CreateRemoteThread in a remote process memory
info IsNET_EXE (no description) binaries (upload)
info IsPacked Entropy Check binaries (upload)
info IsWindowsGUI (no description) binaries (upload)
info keylogger Run a keylogger memory
info migrate_apc APC queue tasks migration memory
info network_dga Communication using dga memory
info network_dns Communications use DNS memory
info network_dropper File downloader/dropper memory
info network_tcp_listen Listen for incoming communication memory
info network_tcp_socket Communications over RAW socket memory
info screenshot Take screenshot memory
info sniff_audio Record Audio memory
info Str_Win32_Wininet_Library Match Windows Inet API library declaration memory
info Str_Win32_Winsock2_Library Match Winsock 2 API library declaration memory
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)
info win_files_operation Affect private profile memory
info win_mutex Create or check mutex memory
info win_registry Affect system registries memory
info win_token Affect system token memory

Network (1cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
152.89.162.12 CH M247 Ltd 152.89.162.12 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