Report - bro.exe

PWS .NET framework Generic Malware SMTP KeyLogger AntiDebug AntiVM PE File PE32 .NET EXE
ScreenShot
Created 2021.10.08 11:39 Machine s1_win7_x6402
Filename bro.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
9
Behavior Score
8.8
ZERO API file : malware
VT API (file) 26 detected (malicious, high confidence, GenericKD, AgentTesla, Unsafe, Save, ZemsilF, Cm0@aajJeq, Eldorado, Attribute, HighConfidence, Kryptik, MalwareX, Static AI, Suspicious PE, Score, ai score=85, kcloud, DI57N3, confidence)
md5 cfbd1a2cbc6b71ecb11b80ddf05db117
sha256 5aa7d1bc7abef93b3ccd50f7dd880f9bf70c7b7d157d067f16377d7b0a929092
ssdeep 6144:eBvdZBDQ+3HwOXfDQ3Jv2/dHuSkwAxzwa6jSvFt4dtktYOJR8NwvEb44M5cxqltY:YkovU3Q/dHhAxMa623+SbDyqEj4Xd
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (18cnts)

Level Description
danger Executed a process and injected code into it
warning File has been identified by 26 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 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 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 (15cnts)

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)
notice KeyLogger Run a KeyLogger memory
notice Network_SMTP_dotNet Communications smtp 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 (0cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?

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