Report - 1090804085.exe

AsyncRAT backdoor
ScreenShot
Created 2021.03.24 18:33 Machine s1_win7_x6401
Filename 1090804085.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
6
Behavior Score
11.4
ZERO API file : malware
VT API (file) 19 detected (malicious, high confidence, Attribute, HighConfidence, DropperX, Pbyu, Siggen2, Static AI, Malicious PE, noqxq, Tnega, score, ZemsilF, im3@aiHEyxni, dGZlOg1ZRR1QsOGy8A)
md5 4920169cae3b94797609bcf4d6bc5df4
sha256 18cbd61d740bd57db209365f8e69ef6da4c02c585421bcd3af7ad24672032a0f
ssdeep 1536:pTW7xqrD+PmvGO1FwjlBvdxRf6ED2ovQKiYguukGVbo:gZPc3+BvvRyED/vQ5Y0R
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (23cnts)

Level Description
danger Connects to an IP address that is no longer responding to requests (legitimate services will remain up-and-running usually)
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 Communicates with host for which no DNS query was performed
watch File has been identified by 19 AntiVirus engines on VirusTotal as malicious
watch Looks for the Windows Idle Time to determine the uptime
watch Manipulates memory of a non-child process indicative of process injection
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 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 Resolves a suspicious Top Level Domain (TLD)
notice Terminates another process
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 Uses Windows APIs to generate a cryptographic key

Rules (21cnts)

Level Name Description Collection
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 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 vmdetect Possibly employs anti-virtualization techniques memory
info WMI_VM_Detect Detection of Virtual Appliances through the use of WMI for use of evasion. memory
info HasDebugData DebugData Check binaries (upload)
info HasOverlay Overlay Check binaries (upload)
info IsNET_EXE (no description) binaries (upload)
info IsWindowsGUI (no description) binaries (upload)
info network_tcp_listen Listen for incoming communication memory
info screenshot Take screenshot binaries (upload)
info screenshot Take screenshot memory
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)
info win_files_operation Affect private profile memory

Network (4cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
https://i.worldhello.ru/SystemCodeDomCodeNamespaceImports RU JSC RTComm.RU 81.177.140.169 clean
i.worldhello.ru RU JSC RTComm.RU 81.177.140.169 clean
88.198.3.5 DE Hetzner Online GmbH 88.198.3.5 clean
81.177.140.169 RU JSC RTComm.RU 81.177.140.169 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