MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cd78d1b64e4edb7547a10bcd919edafbc9501a6b6bbcfb796946ce03dfeec759. 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: 8


Intelligence 8 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cd78d1b64e4edb7547a10bcd919edafbc9501a6b6bbcfb796946ce03dfeec759
SHA3-384 hash: c091bfe5aa3b83d3297e08bc66dbb34dafcd39bb426f2ae6602315444acf73fb7cee9d078cc851ac6a86237230e3d6a0
SHA1 hash: 3e91a40211f8805ea82b4a94ab0656deb3c635b0
MD5 hash: e262e4fd9aacf2df95072d7e2b58c431
humanhash: london-autumn-rugby-fourteen
File name:Enquiry No ANS700_Pdf___.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:409'600 bytes
First seen:2021-01-15 07:16:22 UTC
Last seen:2021-01-15 09:12:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 1442444af7919535e8cc28f805f45818 (3 x Formbook, 2 x NanoCore, 1 x RemcosRAT)
ssdeep 6144:AVNpnuiWgsRl2velkxQvN/HhtBGvqFp5Bf97z5:4uiHpv9xsNhtB4q5Bl7t
Threatray 1'904 similar samples on MalwareBazaar
TLSH B09401D8FE08A194C1110D7E988A8C6294253DF53E607FE3704DBB3F097F6625867A6B
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: logicoverdrive.org
Sending IP: 173.212.213.220
From: Khalid <anna@findaproperty.gi>
Subject: Enquiry No. ANS/700
Attachment: Enquiry No ANS700_Pdf___.iso (contains "Enquiry No ANS700_Pdf___.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
186
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Enquiry No ANS700_Pdf___.exe
Verdict:
Malicious activity
Analysis date:
2021-01-15 07:22:01 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/15877e36-2eb8-41cf-9141-6d1aa76d2680

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/112190/
Detection(s):
SecuriteInfo.com.Generic.mg.e262e4fd9aacf2df.4535.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Launching a process
Sending a UDP request
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Creating a file in the %temp% directory
Deleting a recently created file
DNS request
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Sending a TCP request to an infection source
Unauthorized injection to a system process
Enabling autorun by creating a file
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/582208
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
C2 URLs / IPs found in malware configuration
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
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Uses dynamic DNS services
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: 340140 Sample: Enquiry No ANS700_Pdf___.exe Startdate: 15/01/2021 Architecture: WINDOWS Score: 100 63 Found malware configuration 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 Sigma detected: Scheduled temp file as task from temp location 2->67 69 11 other signatures 2->69 9 Enquiry No ANS700_Pdf___.exe 1 2->9         started        11 dhcpmon.exe 4 2->11         started        13 dhcpmon.exe 3 2->13         started        15 MSBuild.exe 2 2->15         started        process3 process4 17 Enquiry No ANS700_Pdf___.exe 1 9->17         started        20 conhost.exe 9->20         started        22 cmd.exe 1 9->22         started        24 MSBuild.exe 9->24         started        26 conhost.exe 11->26         started        28 conhost.exe 13->28         started        30 conhost.exe 15->30         started        signatures5 59 Writes to foreign memory regions 17->59 61 Maps a DLL or memory area into another process 17->61 32 MSBuild.exe 1 12 17->32         started        37 cmd.exe 1 17->37         started        process6 dnsIp7 55 mimi121.duckdns.org 91.193.75.155, 49719, 49727, 49732 DAVID_CRAIGGG Serbia 32->55 57 192.168.2.1 unknown unknown 32->57 49 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 32->49 dropped 51 C:\Users\user\AppData\Local\...\tmpAFEF.tmp, XML 32->51 dropped 53 C:\Program Files (x86)\...\dhcpmon.exe, PE32 32->53 dropped 71 Hides that the sample has been downloaded from the Internet (zone.identifier) 32->71 39 schtasks.exe 1 32->39         started        41 schtasks.exe 1 32->41         started        file8 signatures9 process10 process11 43 conhost.exe 39->43         started        45 conhost.exe 39->45         started        47 conhost.exe 41->47         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cd78d1b64e4edb7547a10bcd919edafbc9501a6b6bbcfb796946ce03dfeec759/
Threat name:
Win32.Backdoor.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-01-15 07:17:32 UTC
AV detection:
12 of 46 (26.09%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zv4ndnsoj3nxkr5bbpgzdhw27pevagtlno6pw6lji3hahx7oy5mq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
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NanoCore
2acf6c2398a12dc97ff2ceec4f348ed6338c4aafb2dcfeb24856cf8526d12a9d
NanoCore
4f0035201ba7a3a536727862b8ac8dbf389038c5af1674ff7a982190fed1e30b
NanoCore
644a0403a3c8254a3846b8c07aa7fdeb2cfe21aa5630ca3100949869f60ae407
NanoCore
6a4ecef563225ed9892ff403374d704be5e3b4242ae9f08d624325e83fd22276
NanoCore
db591a08743176655e567ddffcbbd79b9e2e31feadc1feb54a0200296a93d53d
NanoCore
dca09e669f01dcc5efa9ab9120ce3febd53868b3ba12a6e0b4574b82b3d0e392
NanoCore
e26e07749118e8284c28e50553c62bdbe327234b801ffdf2eedb8663444aa459
NanoCore
ee0d34b4e09bd177ff94fcc70278b8b6eb95516d20ca22eed1682dc0a4bb03ff
NanoCore
f4bf592fde78af7ed0b06166ac8265d7b65a2457b9a61f12c2e3a4fad641ac19
NanoCore
+ 1'894 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210115-zxgd6flq9e/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
NanoCore
Malware Config
C2 Extraction:
mimi121.duckdns.org:5090
Unpacked files
SH256 hash:
cd78d1b64e4edb7547a10bcd919edafbc9501a6b6bbcfb796946ce03dfeec759
MD5 hash:
e262e4fd9aacf2df95072d7e2b58c431
SHA1 hash:
3e91a40211f8805ea82b4a94ab0656deb3c635b0
Link:
https://www.unpac.me/results/177252b5-aaf4-49b0-b731-34de12c0ed10/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.21
Link:
https://yomi.yoroi.company/submissions/cd78d1b64e4edb7547a10bcd919edafbc9501a6b6bbcfb796946ce03dfeec759

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
Create hunting rule
Author:jeFF0Falltrades
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: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

iso d487aa8711b289b240d1466d354b61b5a8f6e198f8eee825d320930b49e9e499

NanoCore

Executable exe cd78d1b64e4edb7547a10bcd919edafbc9501a6b6bbcfb796946ce03dfeec759

(this sample)

  
Dropped by
MD5 32b44ecde37bdff36a1479334ba630e2
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/112190/
  
Dropped by
SHA256 d487aa8711b289b240d1466d354b61b5a8f6e198f8eee825d320930b49e9e499

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