MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ec850202f17a8e7f5a04603e9c70ab21d7b39fb3142a79098aef1d592974702e. 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 1 YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ec850202f17a8e7f5a04603e9c70ab21d7b39fb3142a79098aef1d592974702e
SHA3-384 hash: 60080255307464f1056accd11f9f2937a3e3d0e8d215f9b9596d9dd539e59dbb87ef84f8fd45f00681c58684201294ed
SHA1 hash: 80830909ec859ed61811329ae16888cb87e1ed5f
MD5 hash: 8e87de15cd3da1245b9c7b0e48c0f126
humanhash: beer-iowa-apart-carpet
File name:8e87de15cd3da1245b9c7b0e48c0f126.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:662'016 bytes
First seen:2021-06-09 09:08:18 UTC
Last seen:2021-06-09 09:46:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:ETQ2c25dc9wH6UvJF0nvekN2rDerJDTQsKIU9JDAccU7jYUL1Xk:52oWksqla711Xk
Threatray 29 similar samples on MalwareBazaar
TLSH B4E4231672948A12EBDE16F6DC77FF04E2F60926D493828AF4A93F05763F7630501AE1
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
79.134.225.90:1144

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
79.134.225.90:1144 https://threatfox.abuse.ch/ioc/73645/

Intelligence

File Origin
# of uploads :
2
# of downloads :
194
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
https://confucanism.hopto.org/new.xlsx
Verdict:
Malicious activity
Analysis date:
2021-06-09 11:19:35 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader rat nanocore
Link:
https://app.any.run/tasks/eac237f6-3732-4870-8eda-e75e7f04e1b9

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/165572/
Detection(s):
SecuriteInfo.com.Artemis8E87DE15CD3D.4546.1591.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
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.
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/799416
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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 domain / URL
Sigma detected: NanoCore
Sigma detected: WScript or CScript Dropper
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 431812 Sample: ZVFVY7NwZ7.exe Startdate: 09/06/2021 Architecture: WINDOWS Score: 100 35 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->35 37 Multi AV Scanner detection for domain / URL 2->37 39 Found malware configuration 2->39 41 12 other signatures 2->41 8 ZVFVY7NwZ7.exe 3 10 2->8         started        process3 file4 23 C:\Users\user\AppData\Roaming\...\chromee.exe, PE32 8->23 dropped 25 C:\Users\user\AppData\...\ZVFVY7NwZ7.exe, PE32 8->25 dropped 27 C:\Users\user\...\chromee.exe:Zone.Identifier, ASCII 8->27 dropped 29 3 other malicious files 8->29 dropped 43 Creates an undocumented autostart registry key 8->43 45 Writes to foreign memory regions 8->45 47 Allocates memory in foreign processes 8->47 49 Injects a PE file into a foreign processes 8->49 12 ZVFVY7NwZ7.exe 9 8->12         started        17 wscript.exe 1 8->17         started        signatures5 process6 dnsIp7 33 wekeepworking.sytes.net 79.134.225.90, 1144, 49727, 49732 FINK-TELECOM-SERVICESCH Switzerland 12->33 31 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 12->31 dropped 51 Antivirus detection for dropped file 12->51 53 Machine Learning detection for dropped file 12->53 55 Hides that the sample has been downloaded from the Internet (zone.identifier) 12->55 57 Wscript starts Powershell (via cmd or directly) 17->57 59 Adds a directory exclusion to Windows Defender 17->59 19 powershell.exe 25 17->19         started        file8 signatures9 process10 process11 21 conhost.exe 19->21         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ec850202f17a8e7f5a04603e9c70ab21d7b39fb3142a79098aef1d592974702e/
Threat name:
Win32.Malware.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-06-09 09:09:10 UTC
AV detection:
9 of 46 (19.57%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5scqeaxrpkhh6wqema7jy4flehl3hh5tcqvhscmk54ovskluoaxa._file
Verdict:
unknown
Similar samples:
065e4f8a0bf0a3ef92a9b4d4868f298b6a497572753550dab0546489f7028971
NanoCore
6413bfe11d962866d306007489ae88c102a5550ef22f1a0ae69231d1a04964be
NanoCore
78396f7f4448c533637a2ceddd8cf6e94681b7f0c2c7b446c3db3704bda8b928
NanoCore
79e2a3311700e87e6d5e4d5f8e23f8f6b5500aa9e25e71afb016df130f21bae0
NanoCore
9463fd33646ba1e72825b00914cc2d5dfef3e31a584cc717e634fe1f685ba6da
NanoCore
9a0ae5af59b2556ccdf876c973c70e5fbea0331bf6bb090183d502d0e92e3faa
NanoCore
b2435f96048b1f8c2fc923c8a8a93cb34ad5079d81b656cacc1daf70775c2ba8
NanoCore
e0fe9f8bd65d5a1ffcca6994e9883143c4cb4f51ec33fab4105c30bec01cea69
NanoCore
f99a929a42f7c6931aa9e45861aea8e8d24f20da66f8144c7d9e324386364034
NanoCore
fba68e2814abacdbe354eb421f5fd731a64cf8410b9ded4e914373a7863c2e99
NanoCore
+ 19 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/210609-xf3hq4zzfn/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
wekeepworking.sytes.net:1144
wekeepworking12.sytes.net:1144
Unpacked files
SH256 hash:
53d97185f7128c1968578d92a3cc81ff4f29b638277a573e87261681f14c4669
MD5 hash:
675a0403cbdf4fe4ea6985c49208726e
SHA1 hash:
10e12610f6f0324c355cae7dd21e1854d69d3b88
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/a6105fcc-e81e-478f-8b02-2fa5aad4662b/
Parent samples :
ec850202f17a8e7f5a04603e9c70ab21d7b39fb3142a79098aef1d592974702e
c0503f7c65391a5be8030bbaaf6c17260fa67e40a3fcc23b84c26610c266008b
SH256 hash:
eceb91d5b7796913a87ba787cfa7fcf247b72fb0fafb39b950cc88ed37358ef1
MD5 hash:
3281581bfae2525d2162ffef9458cd6d
SHA1 hash:
f93b38668460d2e68931f4b73f8de1aec0ac5467
Link:
https://www.unpac.me/results/a6105fcc-e81e-478f-8b02-2fa5aad4662b/
SH256 hash:
3de7b813a5a0a63d723d1c913dd387e1f494e8840c9206bbd23b2c11d0ba2e02
MD5 hash:
8e791c948d34707005bb4aee9d7c0fd3
SHA1 hash:
12f9f112b857420bef9d13949aafd9b07789ae31
Link:
https://www.unpac.me/results/a6105fcc-e81e-478f-8b02-2fa5aad4662b/
SH256 hash:
ec850202f17a8e7f5a04603e9c70ab21d7b39fb3142a79098aef1d592974702e
MD5 hash:
8e87de15cd3da1245b9c7b0e48c0f126
SHA1 hash:
80830909ec859ed61811329ae16888cb87e1ed5f
Link:
https://www.unpac.me/results/a6105fcc-e81e-478f-8b02-2fa5aad4662b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ec850202f17a8e7f5a04603e9c70ab21d7b39fb3142a79098aef1d592974702e

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Web download

NanoCore

Executable exe ec850202f17a8e7f5a04603e9c70ab21d7b39fb3142a79098aef1d592974702e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1344228/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/165572/
  
URLhaus
https://urlhaus.abuse.ch/url/1346393/
  
URLhaus
https://urlhaus.abuse.ch/url/1339476/
  
URLhaus
https://urlhaus.abuse.ch/url/1347776/

Comments