MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d10115beb1ece3efdf1fbf8de435d44b97afc8e424c6eff3b3aaf926961acf82. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d10115beb1ece3efdf1fbf8de435d44b97afc8e424c6eff3b3aaf926961acf82
SHA3-384 hash: 432eab1e3ae15cdd525f0a5a4bd55a27e1d916618e16ed00f60c44ddcb702136eb24d73afc41162ebc20bbd3fc6f55e7
SHA1 hash: f72c7ed7361153b0500bc9f63767a256bf644e51
MD5 hash: fe5d0796dd3e3c1ce5ef310dd8436bd4
humanhash: colorado-romeo-vegan-april
File name:SecuriteInfo.com.Trojan.DownloaderNET.105.19020.17577
Download: download sample
Signature NanoCore
Create hunting rule
File size:21'488 bytes
First seen:2020-12-16 19:42:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 384:G01w0bwmUS3WLd1vAvJAzbfQTSipGY1vGoF/cwIiMN7mS7Dgf2hD:G01w0Dg+ybITZTvG5LxZUf2hD
Threatray 1'400 similar samples on MalwareBazaar
TLSH 53A2F95673047512E95B8B307943D0733B21A7F636A38E5FA595820CCE826A62CDEDCF
Reporter SecuriteInfoCom
Tags:NanoCore

Intelligence

File Origin
# of uploads :
1
# of downloads :
259
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ - 603876355.doc
Verdict:
Malicious activity
Analysis date:
2020-12-16 16:18:20 UTC
Tags:
exploit CVE-2017-11882 loader rat nanocore
Link:
https://app.any.run/tasks/36c3ad08-65a9-475b-9488-477297805a80

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.DownloaderNET.105.19020.17577.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Running batch commands
Creating a process with a hidden window
Launching a process
DNS request
Unauthorized injection to a recently created process
Adding an access-denied ACE
Sending a UDP request
Creating a file in the %AppData% subdirectories
Launching the default Windows debugger (dwwin.exe)
Creating a file in the Program Files subdirectories
Creating a file in the %temp% directory
Deleting a recently created file
Connection attempt
Sending a TCP request to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Result
Verdict:
UNKNOWN
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/564695
Signature
.NET source code contains potential unpacker
Connects to a pastebin service (likely for C&C)
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
Writes to foreign memory regions
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 331440 Sample: SecuriteInfo.com.Trojan.Dow... Startdate: 16/12/2020 Architecture: WINDOWS Score: 100 72 gsyagvxnzmkoplbhduisbagtevcnxmzlopljdgye.ydns.eu 2->72 80 Found malware configuration 2->80 82 Malicious sample detected (through community Yara rule) 2->82 84 Multi AV Scanner detection for dropped file 2->84 86 8 other signatures 2->86 9 SecuriteInfo.com.Trojan.DownloaderNET.105.19020.exe 15 3 2->9         started        13 dhcpmon.exe 2->13         started        15 SecuriteInfo.com.Trojan.DownloaderNET.105.19020.exe 3 2->15         started        17 dhcpmon.exe 2->17         started        signatures3 process4 dnsIp5 78 hastebin.com 104.24.127.89, 443, 49719, 49724 CLOUDFLARENETUS United States 9->78 90 Hides threads from debuggers 9->90 92 Injects a PE file into a foreign processes 9->92 19 SecuriteInfo.com.Trojan.DownloaderNET.105.19020.exe 1 12 9->19         started        24 cmd.exe 1 9->24         started        26 WerFault.exe 23 9 9->26         started        94 Writes to foreign memory regions 13->94 28 cmd.exe 13->28         started        38 2 other processes 13->38 30 SecuriteInfo.com.Trojan.DownloaderNET.105.19020.exe 15->30         started        32 cmd.exe 15->32         started        34 SecuriteInfo.com.Trojan.DownloaderNET.105.19020.exe 15->34         started        36 cmd.exe 17->36         started        signatures6 process7 dnsIp8 74 gsyagvxnzmkoplbhduisbagtevcnxmzlopljdgye.ydns.eu 46.243.237.119, 2177 M247GB Netherlands 19->74 76 192.168.2.1 unknown unknown 19->76 62 C:\Program Files (x86)\...\dhcpmon.exe, PE32 19->62 dropped 64 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 19->64 dropped 66 C:\Users\user\AppData\Local\...\tmpCEF9.tmp, XML 19->66 dropped 68 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 19->68 dropped 88 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->88 40 schtasks.exe 1 19->40         started        42 schtasks.exe 1 19->42         started        44 conhost.exe 24->44         started        46 timeout.exe 1 24->46         started        56 2 other processes 28->56 70 SecuriteInfo.com.T...T.105.19020.exe.log, ASCII 30->70 dropped 48 conhost.exe 32->48         started        50 timeout.exe 32->50         started        52 conhost.exe 36->52         started        54 timeout.exe 36->54         started        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/d10115beb1ece3efdf1fbf8de435d44b97afc8e424c6eff3b3aaf926961acf82/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-12-16 17:33:36 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2earlpvr5tr67xy7x6g6inoujol27sheetdo745tvl4snfq2z6ba._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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NanoCore
4d41aeadc8ec2a61264185f84985595dea4edec7a0c1e0866497c5f16d3dff46
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a9352a90a15c864ae05d1d1138aff00094883dc44afffc471e837e46fe3eb24e
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be240aed297970b0e97f46ce8964784645c8bfeb7b4ffc451ab7857b7df8438f
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NanoCore
+ 1'390 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/201216-rxt4zdw376/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Drops file in Program Files directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
gsyagvxnzmkoplbhduisbagtevcnxmzlopljdgye.ydns.eu:2177
Unpacked files
SH256 hash:
d10115beb1ece3efdf1fbf8de435d44b97afc8e424c6eff3b3aaf926961acf82
MD5 hash:
fe5d0796dd3e3c1ce5ef310dd8436bd4
SHA1 hash:
f72c7ed7361153b0500bc9f63767a256bf644e51
Link:
https://www.unpac.me/results/e217018f-95d9-4ebc-bed7-d94c9f58df63/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Eldorado
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/d10115beb1ece3efdf1fbf8de435d44b97afc8e424c6eff3b3aaf926961acf82

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 d10115beb1ece3efdf1fbf8de435d44b97afc8e424c6eff3b3aaf926961acf82

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/923307/
  
Delivery method
Distributed via web download

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