MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f0348163833cbe594d7757570ceece6fde8264951f8af3da633d140e62e0558. 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: 18


Intelligence 18 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3f0348163833cbe594d7757570ceece6fde8264951f8af3da633d140e62e0558
SHA3-384 hash: 392b50aee021a590c31387c2d6903b4b83b294b6bcdd3e55df221fb6f2a151d3c39352671ef528b7ec0cdb2dd2b50a57
SHA1 hash: f4a4c0dcf2edb00d49966e0157d677fa2db26469
MD5 hash: 4bee0e7d9ea36f9d2b5eb77433bf547d
humanhash: five-winter-failed-monkey
File name:1684922336bf2d9a3ffd115190308c1b7e0aee75350c902b184745515af32b391fb4922fea602.dat-decoded
Download: download sample
Signature NanoCore
Create hunting rule
File size:207'872 bytes
First seen:2023-05-24 09:58:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 3072:MzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIO/Zle+FNy3W211XP3NS56f+:MLV6Bta6dtJmakIM5BleBHAc+
Threatray 1'715 similar samples on MalwareBazaar
TLSH T13F14CF6577A94A2FE2DE86B9711212129378C2E3D8D3F3DF28D455B68F263E0060B1D7
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:base64-decoded exe NanoCore


Avatar
abuse_ch
Malware dropped as base64 encoded payload

Intelligence

File Origin
# of uploads :
1
# of downloads :
345
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
nanocore
Create hunting rule
ID:
1
File name:
1684922336bf2d9a3ffd115190308c1b7e0aee75350c902b184745515af32b391fb4922fea602.dat-decoded
Verdict:
Malicious activity
Analysis date:
2023-05-24 10:02:08 UTC
Tags:
nanocore
Link:
https://app.any.run/tasks/f39f62e3-428b-4643-b929-7a730fec1d1b

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/391105/
Detection(s):
Win.Trojan.NanoCore-9852758-0
Create hunting rule

Win.Packed.Generic-9777790-0
Create hunting rule

Win.Trojan.Generic-9783914-0
Create hunting rule

Win.Dropper.Nancrat-9869495-0
Create hunting rule

Win.Dropper.Nanocore-9916514-0
Create hunting rule

Win.Trojan.Nanocore-5
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
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
Launching a process
Searching for synchronization primitives
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin nanocore obfuscated packed rat schtasks.exe
Link:
https://www.filescan.io/uploads/646ddfe874f29291dfe63ea5/reports/6b239d1c-5e32-438f-8b7a-be94c46c206b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/3f0348163833cbe594d7757570ceece6fde8264951f8af3da633d140e62e0558
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.
Malware family:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5108adae-b032-4254-a779-988035fd3cff
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1241486
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
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)
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
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 dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 874496 Sample: 1684922336bf2d9a3ffd1151903... Startdate: 24/05/2023 Architecture: WINDOWS Score: 100 40 Multi AV Scanner detection for domain / URL 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 14 other signatures 2->46 7 1684922336bf2d9a3ffd115190308c1b7e0aee75350c902b184745515af32b391fb4922fea602.dat-decoded.exe 1 14 2->7         started        12 1684922336bf2d9a3ffd115190308c1b7e0aee75350c902b184745515af32b391fb4922fea602.dat-decoded.exe 3 2->12         started        14 dhcpmon.exe 3 2->14         started        16 dhcpmon.exe 2 2->16         started        process3 dnsIp4 36 telenaxty.ddns.net 7->36 38 192.168.2.1 unknown unknown 7->38 26 C:\Program Files (x86)\...\dhcpmon.exe, PE32 7->26 dropped 28 C:\Users\user\AppData\Roaming\...\run.dat, data 7->28 dropped 30 C:\Users\user\AppData\Local\...\tmpE22F.tmp, XML 7->30 dropped 32 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 7->32 dropped 48 Uses schtasks.exe or at.exe to add and modify task schedules 7->48 50 Hides that the sample has been downloaded from the Internet (zone.identifier) 7->50 18 schtasks.exe 1 7->18         started        20 schtasks.exe 1 7->20         started        34 1684922336bf2d9a3f...dat-decoded.exe.log, ASCII 12->34 dropped file5 signatures6 process7 process8 22 conhost.exe 18->22         started        24 conhost.exe 20->24         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3f0348163833cbe594d7757570ceece6fde8264951f8af3da633d140e62e0558/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2023-05-11 18:58:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
36 of 37 (97.30%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h4buqfrygpf6lfgxov2xbtxm4366qjsjkh4k6pnggpiubzroavma._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
07f511ce3b6a8fb409c1a05ea3e01a6d92422674224109c8d0889a017122098c
NanoCore
24584863e35b36fa2cd4285a6aafd6a117ea0585c5c92ddf289ab13b8af87622
NanoCore
45272694709263868523b77d0561757378cc2e8aa7d64c7ed21deaacbdf88b5b
NanoCore
4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9
NanoCore
51ba2b6912305fd63c041dccff36db067314cab3f93227aaf21990801efa0b25
NanoCore
7ceb354c4f419b3daed055ae62d5b1aaf58a7b715f8e9de08e5379e7e70ebeb6
NanoCore
c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718
NanoCore
ffec1862f56857ad722abbcb98be7af86f2cf0763371bcb40273f0d884157c32
NanoCore
+ 1'705 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/230524-lz4e7sbh56/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Adds Run key to start application
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
telenaxty.ddns.net:6318
Unpacked files
SH256 hash:
3f0348163833cbe594d7757570ceece6fde8264951f8af3da633d140e62e0558
MD5 hash:
4bee0e7d9ea36f9d2b5eb77433bf547d
SHA1 hash:
f4a4c0dcf2edb00d49966e0157d677fa2db26469
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/cd2455b9-88b5-40ee-9898-5c23c85b73af/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3f0348163833/report/overview.html
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/3f0348163833cbe594d7757570ceece6fde8264951f8af3da633d140e62e0558

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:malware_Nanocore_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:MALWARE_Win_NanoCore
Create hunting rule
Author:ditekSHen
Description:Detects NanoCore
Rule name:nanocore_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:Nanocore_RAT_Feb18_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
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 (Nextron Systems)
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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Nanocore_d8c4e3c5
Create hunting rule
Author:Elastic Security
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.

bf2d9a3ffd115190308c1b7e0aee75350c902b184745515af32b391fb4922fea

NanoCore

Executable exe 3f0348163833cbe594d7757570ceece6fde8264951f8af3da633d140e62e0558

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2589862/
  
Dropped by
SHA256 bf2d9a3ffd115190308c1b7e0aee75350c902b184745515af32b391fb4922fea
  
Dropped by
MD5 dfae83a9ffc5b33cfcea406a52ec16af
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/391105/

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