MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3a178349d762b6e0b164676fc67dc1658f7e3190bed841b0699f43213bca7b09. 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: 10


Intelligence 10 IOCs YARA 6 File information Comments
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SHA256 hash: 3a178349d762b6e0b164676fc67dc1658f7e3190bed841b0699f43213bca7b09
SHA3-384 hash: 3800c1a1395cafcd5bd8d5ea8790c9dd6c4f15487cbdb4ba8bca60df1483a8a2ba3f76be30664f411d60152aee8f246c
SHA1 hash: db2f9634a8f7642787e129186d783bb947a47084
MD5 hash: c23205a5ce619b712e1c9b10bbfb1b4a
humanhash: alpha-seven-sink-blossom
File name:Novemeber Payment Advice 20211197864,PDF.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:668'160 bytes
First seen:2021-11-15 03:16:47 UTC
Last seen:2021-11-15 04:59:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:NMAI6SsUcnWMP/HQe9m6YgO7nffBgCxTxb+QHQxClF6A6Ie4xy:pnWMP/HQe9mJgynHBgQe4x
Threatray 3'891 similar samples on MalwareBazaar
TLSH T178E4A4DF37091D62FC0E82318D82990A7B2BBA43FB5DA9C1538BD5DFA75F0655E04888
File icon (PE):PE icon
dhash icon d8dcc4d4ccfc74b4 (3 x NanoCore, 1 x SnakeKeylogger, 1 x Formbook)
Reporter GovCERT_CH
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
2
# of downloads :
114
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/205737/
Detection(s):
SecuriteInfo.com.Trojan.Win32.runner.ali1000123.29934.18997.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Running batch commands
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm obfuscated packed
Link:
https://www.filescan.io/uploads/6191d1303edf00a722d4aa36/reports/4981315d-fc2f-40ee-ba9b-11c2bd19bd3d/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fa12a4b4-9d96-4d0b-ba57-e8bc059d3c18
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/889083
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Binary or sample is protected by dotNetProtector
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: NanoCore
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 521556 Sample: Novemeber Payment Advice 20... Startdate: 15/11/2021 Architecture: WINDOWS Score: 100 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 12 other signatures 2->60 7 Novemeber Payment Advice 20211197864,PDF.exe 4 2->7         started        11 dlllhostt.exe 3 2->11         started        process3 file4 42 Novemeber Payment ...1197864,PDF.exe.log, ASCII 7->42 dropped 62 Writes to foreign memory regions 7->62 64 Injects a PE file into a foreign processes 7->64 13 RegAsm.exe 7 7->13         started        18 cmd.exe 3 7->18         started        20 cmd.exe 1 7->20         started        44 C:\Users\user\AppData\...\dlllhostt.exe.log, ASCII 11->44 dropped 66 Multi AV Scanner detection for dropped file 11->66 68 Machine Learning detection for dropped file 11->68 22 cmd.exe 1 11->22         started        24 cmd.exe 1 11->24         started        26 RegAsm.exe 3 11->26         started        28 conhost.exe 11->28         started        signatures5 process6 dnsIp7 52 emba.espielweinstein.pw 185.200.116.203, 46012, 49711, 49712 M247GB United Kingdom 13->52 46 C:\Users\user\AppData\Roaming\...\run.dat, data 13->46 dropped 70 Hides that the sample has been downloaded from the Internet (zone.identifier) 13->70 48 C:\Users\user\AppData\...\dlllhostt.exe, PE32 18->48 dropped 50 C:\Users\...\dlllhostt.exe:Zone.Identifier, ASCII 18->50 dropped 30 conhost.exe 18->30         started        72 Uses schtasks.exe or at.exe to add and modify task schedules 20->72 32 conhost.exe 20->32         started        34 schtasks.exe 1 20->34         started        36 conhost.exe 22->36         started        38 schtasks.exe 1 22->38         started        40 conhost.exe 24->40         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3a178349d762b6e0b164676fc67dc1658f7e3190bed841b0699f43213bca7b09/
Threat name:
ByteCode-MSIL.Backdoor.NanoBot
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Status:
Malicious
First seen:
2021-11-15 00:16:50 UTC
AV detection:
24 of 45 (53.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hilygsoxmk3obmlem5x4m7obmwhx4mmqx3medmdjt5bsco6kpmeq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
07f511ce3b6a8fb409c1a05ea3e01a6d92422674224109c8d0889a017122098c
NanoCore
2b8a102443d6ed4c84471a54f058f24f5f55485bba73ebd785fdce294e337110
NanoCore
3d8811d64e17d5ea06d0edae6163b90b2400d06d9afa60ae689d6fe9232bca86
NanoCore
4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9
NanoCore
5a8b4dc95322eed89a2c77350395f8c1f79394369bebec84703ae285092a37f5
NanoCore
7ceb354c4f419b3daed055ae62d5b1aaf58a7b715f8e9de08e5379e7e70ebeb6
NanoCore
9f96527c9f839559485e89c5c5ff8f95708035fd55c9fac0c2edf3764224d860
NanoCore
9fc2ec9a478ddf812c9687c805f340989dc0af33b48100ec6621e422035ce579
NanoCore
ffec1862f56857ad722abbcb98be7af86f2cf0763371bcb40273f0d884157c32
NanoCore
+ 3'881 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger spyware stealer trojan
Link:
https://tria.ge/reports/211115-ds2n2ahbg4/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Executes dropped EXE
NanoCore
Malware Config
C2 Extraction:
emba.espielweinstein.pw:46012
185.200.116.203:46012
Unpacked files
SH256 hash:
3a178349d762b6e0b164676fc67dc1658f7e3190bed841b0699f43213bca7b09
MD5 hash:
c23205a5ce619b712e1c9b10bbfb1b4a
SHA1 hash:
db2f9634a8f7642787e129186d783bb947a47084
Link:
https://www.unpac.me/results/e816d0d5-7eb6-4fda-b676-6fe06ab96d1e/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/3a178349d762/report/overview.html
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:INDICATOR_EXE_Packed_Dotfuscator
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with Dotfuscator
Rule name:INDICATOR_EXE_Packed_dotNetProtector
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with dotNetProtector
Rule name:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

NanoCore

Executable exe 3a178349d762b6e0b164676fc67dc1658f7e3190bed841b0699f43213bca7b09

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/205737/

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