MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b34c340b11daa880854878e6ed0c49989354ef516029f824f83ecfb3d07a5516. 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: 12


Intelligence 12 IOCs 1 YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b34c340b11daa880854878e6ed0c49989354ef516029f824f83ecfb3d07a5516
SHA3-384 hash: 5dd09f04dc2413898e5b7e50c00a5a12016a0bcb6bec3e2ff9ce2a1798c333f007604ca8d4d70b2087fd670ac21eb474
SHA1 hash: 66ecf4a0f5c532dd0904b05aa438dab6146ea150
MD5 hash: 6be6691dbec8ef8261ed65b2ccc3e84e
humanhash: cat-india-vermont-georgia
File name:J5K18S6C5V43.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:127'488 bytes
First seen:2021-10-04 15:16:31 UTC
Last seen:2021-10-04 16:24:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 1536:djjX3pjoS3Zu9jeFJiQ+xQnQR8RVQJv2kiqXeSqQjUy8J:9XhoS37GQneIoOQqQF8
Threatray 2'967 similar samples on MalwareBazaar
TLSH T10FC3D40A5956C518D4AA4A73F562E1F2B8232C6BD57509132AEDBC2BBB3F051CC3CF49
File icon (PE):PE icon
dhash icon dce48ad8f0a2dcd4 (1 x NanoCore, 1 x 1ms0rryMiner)
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
185.140.53.3:8090

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
185.140.53.3:8090 https://threatfox.abuse.ch/ioc/230268/

Intelligence

File Origin
# of uploads :
2
# of downloads :
218
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
J5K18S6C5V43.exe
Verdict:
Malicious activity
Analysis date:
2021-10-04 15:21:21 UTC
Tags:
trojan nanocore rat
Link:
https://app.any.run/tasks/6f3a5f1f-1fbe-45c3-bf75-652eff8434b5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/194703/
Detection(s):
SecuriteInfo.com.Suspicious.Win32.Save.a.25810.11978.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a service
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Creating a file in the Windows subdirectories
Adding an access-denied ACE
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Adding exclusions to Windows Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/615c1036e3d213d202b76fab/reports/b08398b9-aae7-4655-bcc0-186109c150ca/overview
Malware family:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0871f916-df5d-48bd-a5c7-196218156516
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/864204
Signature
Adds a directory exclusion to Windows Defender
Changes security center settings (notifications, updates, antivirus, firewall)
Creates an autostart registry key pointing to binary in C:\Windows
Creates autostart registry keys with suspicious names
Detected Nanocore Rat
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
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: NanoCore
Sigma detected: Powershell Defender Exclusion
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Yara detected AntiVM3
Yara detected Nanocore RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 496646 Sample: J5K18S6C5V43.exe Startdate: 04/10/2021 Architecture: WINDOWS Score: 100 66 saturdayom.duckdns.org 2->66 78 Malicious sample detected (through community Yara rule) 2->78 80 Multi AV Scanner detection for submitted file 2->80 82 Sigma detected: NanoCore 2->82 84 9 other signatures 2->84 8 J5K18S6C5V43.exe 18 7 2->8         started        13 svchost.exe 2->13         started        15 svchost.exe 2->15         started        17 9 other processes 2->17 signatures3 process4 dnsIp5 72 cdn.discordapp.com 162.159.130.233, 443, 49720, 49721 CLOUDFLARENETUS United States 8->72 60 C:\Windows\Resources\Themes\...\svchost.exe, PE32 8->60 dropped 62 C:\Windows\...\svchost.exe:Zone.Identifier, ASCII 8->62 dropped 64 C:\Users\user\...\J5K18S6C5V43.exe.log, ASCII 8->64 dropped 88 Creates autostart registry keys with suspicious names 8->88 90 Creates an autostart registry key pointing to binary in C:\Windows 8->90 92 Adds a directory exclusion to Windows Defender 8->92 94 Drops PE files with benign system names 8->94 19 J5K18S6C5V43.exe 8->19         started        24 powershell.exe 25 8->24         started        26 powershell.exe 24 8->26         started        32 3 other processes 8->32 74 162.159.129.233, 443, 49732, 49740 CLOUDFLARENETUS United States 13->74 96 System process connects to network (likely due to code injection or exploit) 13->96 98 Multi AV Scanner detection for dropped file 13->98 100 Machine Learning detection for dropped file 13->100 28 powershell.exe 13->28         started        30 powershell.exe 13->30         started        34 2 other processes 13->34 102 Hides threads from debuggers 15->102 36 4 other processes 15->36 76 127.0.0.1 unknown unknown 17->76 104 Changes security center settings (notifications, updates, antivirus, firewall) 17->104 38 2 other processes 17->38 file6 signatures7 process8 dnsIp9 68 saturdayom.duckdns.org 185.140.53.3, 49731, 49753, 49756 DAVID_CRAIGGG Sweden 19->68 70 192.168.2.1 unknown unknown 19->70 58 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 19->58 dropped 86 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->86 40 conhost.exe 24->40         started        42 conhost.exe 26->42         started        44 conhost.exe 28->44         started        46 conhost.exe 30->46         started        48 conhost.exe 32->48         started        50 conhost.exe 34->50         started        52 conhost.exe 36->52         started        54 conhost.exe 36->54         started        56 conhost.exe 36->56         started        file10 signatures11 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b34c340b11daa880854878e6ed0c49989354ef516029f824f83ecfb3d07a5516/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-04 15:17:17 UTC
AV detection:
16 of 45 (35.56%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wngdicyr3kuibbkipdto2dcjtcjvj32rmau7qjhyh3h3hud2kula._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
2b8a102443d6ed4c84471a54f058f24f5f55485bba73ebd785fdce294e337110
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305bf6557bcc3df14cf33993d14e03fa84a6bd7611a990402fae4522ff098454
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437c9421ae36bc19198438f86b86a39de0d207449abef097eb9656743823c256
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4d01d1b24f4f7487669486becc7ff8b43a126f56ffb3d8fcce8c66b200412475
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4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9
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5a8b4dc95322eed89a2c77350395f8c1f79394369bebec84703ae285092a37f5
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9f96527c9f839559485e89c5c5ff8f95708035fd55c9fac0c2edf3764224d860
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9fc2ec9a478ddf812c9687c805f340989dc0af33b48100ec6621e422035ce579
NanoCore
a276b0d2aaf8a132ffbe9ae16763975bcf38fc1e5a6419890712fc3de02b793f
NanoCore
+ 2'957 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer suricata trojan
Link:
https://tria.ge/reports/211004-sn34magfcq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Windows security modification
NanoCore
Windows security bypass
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
saturdayom.duckdns.org:8090
Unpacked files
SH256 hash:
b34c340b11daa880854878e6ed0c49989354ef516029f824f83ecfb3d07a5516
MD5 hash:
6be6691dbec8ef8261ed65b2ccc3e84e
SHA1 hash:
66ecf4a0f5c532dd0904b05aa438dab6146ea150
Link:
https://www.unpac.me/results/0bc1edaf-43ec-476f-b72d-3e0bbf1991ee/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b34c340b11da/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/b34c340b11daa880854878e6ed0c49989354ef516029f824f83ecfb3d07a5516

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_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
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_Feb18_1_RID2DF1
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:Nanocore_RAT_Gen_2_RID2D96
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: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.

Cape
Cape
https://www.capesandbox.com/analysis/194703/

Comments