MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 10315925b522edfdb4a4fdbd067493ed9bf97796fc3dd61242de5b4bf71c6471. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


NanoCore


Vendor detections: 4


Intelligence 4 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 10315925b522edfdb4a4fdbd067493ed9bf97796fc3dd61242de5b4bf71c6471
SHA3-384 hash: d46343cd09e9b1dcc948edd3804bd732ca8444f99e98f770159b582fb89be86145f85e7c3fbc1bd28db981a5b5a749df
SHA1 hash: aa3a2eab6f7fb69ec9c6cb3d6642538b6fc68293
MD5 hash: ae025b49a2cac6cf70651d76176f5a10
humanhash: ten-helium-massachusetts-king
File name:Anti_ covid19_Iwantani_vietnam_co.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:2'288'128 bytes
First seen:2020-03-30 11:30:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 49152:Mw80cTsjkWajmYfUslRQmtmG0TUlo7D764tZqrP:N8sjkDfUsl1zeUm
Threatray 1'781 similar samples on MalwareBazaar
TLSH 0BB5E063A34DC2B9CB194136FED63745BD9B74218730B5171FCC2D282914EB2B93E6A2
Reporter abuse_ch
Tags:COVID-19 exe NanoCore RAT


Avatar
abuse_ch
COVID-19 themed malspam distributing NanoCore RAT:

HELO: nenk.com
Sending IP: 168.235.82.242
From: Iwatani Vietnam <nhule.iwatani@gmail.com>
Subject: Anti-covid-19 items
Attachment: Anti_ covid19_Iwantani_vietnam_co.arj (contains "Anti_ covid19_Iwantani_vietnam_co.exe")

RemcosRAT C2:
45.125.239.181:4488

Intelligence

File Origin
# of uploads :
1
# of downloads :
106
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.27686.AidExe.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.27684.AidExe.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan.PWS.Stealer.19347.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
Script-AutoIt.Trojan.Injector
Create hunting rule
Status:
Malicious
First seen:
2020-03-29 22:48:13 UTC
File Type:
PE (Exe)
Extracted files:
74
AV detection:
29 of 31 (93.55%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=cayvsjnvelw73nfe7w6qm5et5wn7s54w7q65mesc3znux5y4mryq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
136c712a4729d8e0ee867ad0d5b9ecfe69a77191af02d4d38586ec6cdd0a3235
NanoCore
2e3068fbfcc72172efda05ac44c3a23658d575a9125abefa62e42eb3c0983df1
NanoCore
33318539cfd16ce1d6f1cd45885d39c5534b8ccc6a81a64b53fb890b96fd9cee
NanoCore
4b110258d8a90160fd07abfd441805de6b8e1cb646c0734febd7de606ca5a4e4
NanoCore
4b21bb475e5ceddb95ce17345517a9369fac1b0fbcd10365c7a739923f3f524f
NanoCore
7cb0f80624431e1745d162ee3c2a4a25744f8d8fcbd95fe3c54f94214e826e0d
NanoCore
95034687c0234adc6400e0cce0f13db71b230fd428dcf9ba540083a34edc7eb8
NanoCore
ded450af998de45b6a1ac415f262e047e7bd173b152e61d2cbe26877ddafe706
NanoCore
e3a46e240ed1f39b798492114fb14364dfbfec082864f13e5e17a44f31ff037d
NanoCore
ed18e2195e0754a6c2a5073def7ff6a24c7ae245db70d51a87490e9a07c0db5c
NanoCore
+ 1'771 additional samples on MalwareBazaar
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:ach_NanoCore
Create hunting rule
Author:abuse.ch
Rule name:Nanocore
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:Nanocore_RAT_Feb18_1
Create hunting rule
Author:Florian Roth
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Gen_2
Create hunting rule
Author:Florian Roth
Description:Detetcs the Nanocore RAT
Reference:https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Rule name:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:win_alina_pos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_gootkit_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_nanocore_w0
Create hunting rule
Author: Kevin Breen <kevin@techanarchy.net>

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

NanoCore

arj dd280d9cdda7796cb295b3635fd64eeed3805a4e9a4a5360576eb121303db064

NanoCore

Executable exe 10315925b522edfdb4a4fdbd067493ed9bf97796fc3dd61242de5b4bf71c6471

(this sample)

  
Dropped by
MD5 1d6702182578276d04bf6bf579a51694
  
Dropped by
SHA256 dd280d9cdda7796cb295b3635fd64eeed3805a4e9a4a5360576eb121303db064
  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::CopySid
ADVAPI32.dll::FreeSid
ADVAPI32.dll::GetLengthSid
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::GetAce
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoCreateInstanceEx
ole32.dll::CoInitializeSecurity
ole32.dll::CreateStreamOnHGlobal
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringW
WINMM.dll::timeGetTime
WINMM.dll::waveOutSetVolume
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AddAce
ADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::DuplicateTokenEx
ADVAPI32.dll::GetAclInformation
ADVAPI32.dll::GetSecurityDescriptorDacl
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::CreateProcessAsUserW
KERNEL32.dll::CreateProcessW
ADVAPI32.dll::CreateProcessWithLogonW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
ADVAPI32.dll::OpenThreadToken
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::SetSystemPowerState
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
IPHLPAPI.DLL::IcmpCreateFile
KERNEL32.dll::CreateFileW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LogonUserW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetAddConnection2W
MPR.dll::WNetUseConnectionW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegConnectRegistryW
ADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::BlockInput
USER32.dll::CloseDesktop
USER32.dll::CreateMenu
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::FindWindowW

Comments