MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 460a8a0cd9f84fc66efee342cbca339d6d2791a3bcf1ccd4ac0e1974b12dad97. 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: 460a8a0cd9f84fc66efee342cbca339d6d2791a3bcf1ccd4ac0e1974b12dad97
SHA3-384 hash: 633828044eddb7c4188d8683560464e3f08bc3a42c5814c637c44e69886134f20138d5a0d6391722af5f4a8f6d52b3b4
SHA1 hash: 0c69fe9a767882154d85c4338f88fdc70349896c
MD5 hash: 6ef0fc668d6056c02145933176bf7939
humanhash: illinois-north-crazy-jersey
File name:6ef0fc668d6056c02145933176bf7939.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:57'776 bytes
First seen:2020-12-18 07:48:22 UTC
Last seen:2020-12-18 09:59:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 768:rdSP4qwZ7bytDZDIMbTtlyQHch1m9G1PhdUf2hT:rdl7bwDTbm7tZdUfU
Threatray 15 similar samples on MalwareBazaar
TLSH 5243FCD1AEF8495BC41AB33C12D97402BF760E642A36CB5B463735626DE23845EDE80F
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore RAT C2:
gsyagvxnzmkoplbhduisbagtevcnxmzlopljdgye.ydns.eu:2177 (104.250.161.103)

Intelligence

File Origin
# of uploads :
2
# of downloads :
159
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6ef0fc668d6056c02145933176bf7939.exe
Verdict:
Malicious activity
Analysis date:
2020-12-18 07:52:37 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/eadb6fc5-3130-4132-b4b6-08edf7785d30

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/108316/
Detection(s):
SecuriteInfo.com.Trojan.DownloaderNET.106.15072.22199.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Creating a process with a hidden window
Launching a process
DNS request
Sending a UDP request
Launching the default Windows debugger (dwwin.exe)
Sending a TCP request to an infection source
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/566039
Signature
.NET source code contains potential unpacker
Connects to a pastebin service (likely for C&C)
Contains functionality to hide a thread from the debugger
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 332099 Sample: K8vJWv8Niw.exe Startdate: 18/12/2020 Architecture: WINDOWS Score: 100 76 gsyagvxnzmkoplbhduisbagtevcnxmzlopljdgye.ydns.eu 2->76 86 Found malware configuration 2->86 88 Malicious sample detected (through community Yara rule) 2->88 90 Multi AV Scanner detection for dropped file 2->90 92 9 other signatures 2->92 9 K8vJWv8Niw.exe 15 3 2->9         started        13 K8vJWv8Niw.exe 3 2->13         started        15 dhcpmon.exe 2->15         started        17 dhcpmon.exe 2->17         started        signatures3 process4 dnsIp5 80 hastebin.com 104.24.127.89, 443, 49722 CLOUDFLARENETUS United States 9->80 82 192.168.2.1 unknown unknown 9->82 96 Hides threads from debuggers 9->96 19 K8vJWv8Niw.exe 1 12 9->19         started        24 WerFault.exe 23 9 9->24         started        26 cmd.exe 1 9->26         started        28 K8vJWv8Niw.exe 9->28         started        84 172.67.143.180, 443, 49726, 49729 CLOUDFLARENETUS United States 13->84 30 K8vJWv8Niw.exe 13->30         started        32 WerFault.exe 13->32         started        34 cmd.exe 13->34         started        98 Injects a PE file into a foreign processes 15->98 36 4 other processes 15->36 38 2 other processes 17->38 signatures6 process7 dnsIp8 78 gsyagvxnzmkoplbhduisbagtevcnxmzlopljdgye.ydns.eu 188.72.85.70, 2177, 49724, 49731 M247GB Netherlands 19->78 62 C:\Program Files (x86)\...\dhcpmon.exe, PE32 19->62 dropped 64 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 19->64 dropped 66 C:\Users\user\AppData\Local\Temp\tmp7C7.tmp, XML 19->66 dropped 68 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 19->68 dropped 94 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->94 40 schtasks.exe 1 19->40         started        42 schtasks.exe 1 19->42         started        70 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 24->70 dropped 44 conhost.exe 26->44         started        46 timeout.exe 1 26->46         started        72 C:\Users\user\AppData\...\K8vJWv8Niw.exe.log, ASCII 30->72 dropped 74 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 32->74 dropped 48 conhost.exe 34->48         started        50 timeout.exe 34->50         started        52 conhost.exe 36->52         started        54 timeout.exe 36->54         started        56 2 other processes 38->56 file9 signatures10 process11 process12 58 conhost.exe 40->58         started        60 conhost.exe 42->60         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/460a8a0cd9f84fc66efee342cbca339d6d2791a3bcf1ccd4ac0e1974b12dad97/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-12-18 00:07:41 UTC
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=iyfiudgz7bh4m3x64nbmxsrttvwspendxty4zvfmbymxjmjnvwlq._file
Verdict:
unknown
Similar samples:
0c6dbb5a8b9e0e7189b201b4387c4d23f2eec78a1b8c66834fc51a10b9f992f9
NanoCore
1af16016b5773b6d22f0d0e5f93392e909d3505d22ef1cefb8127798de67760f
NanoCore
29eb1cc47e1691ce931b66a745b10f88dff84fbdd8b8ec7b407137c362a9154f
NanoCore
320592aa53514c7fd425f4c691e4be802ca964955d5a6fdd960a8725c36737b4
NanoCore
8bb625e15877474a379c52910cf7741a3b356416f89c019456d740aae69aea33
NanoCore
93f290cc7d1addf57b72773a12b307ba5598c086339d176d9a24a641a7e69d08
NanoCore
9cef44491d14577c5041187e34b13b784c7f26ab95ead4db16081e8c3d9c8a1d
NanoCore
cb866da199696cea1ffe6bd8498c1d2bcf3dd75772291e0d454c4e82c6a51272
NanoCore
e3c342be37ab6f49260bc36cec49561b08479b1a577ec2df7b634caffd585d96
NanoCore
fb25872744b711f6c9290d7ce2d3cf371e89c9919c8d77786ab528e47034d0e3
NanoCore
+ 5 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/201218-pxannc92ks/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Unpacked files
SH256 hash:
460a8a0cd9f84fc66efee342cbca339d6d2791a3bcf1ccd4ac0e1974b12dad97
MD5 hash:
6ef0fc668d6056c02145933176bf7939
SHA1 hash:
0c69fe9a767882154d85c4338f88fdc70349896c
Link:
https://www.unpac.me/results/a5cb34a9-43d6-4387-9c5c-450fb4fb0ae4/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/460a8a0cd9f84fc66efee342cbca339d6d2791a3bcf1ccd4ac0e1974b12dad97

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.

Web download

NanoCore

Executable exe 460a8a0cd9f84fc66efee342cbca339d6d2791a3bcf1ccd4ac0e1974b12dad97

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/923307/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/108316/

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