MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fdbd3745cb8d65ce98c4b272b193a621aa00a06aa96a40671e9e6a314239731b. 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: 13


Intelligence 13 IOCs 1 YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fdbd3745cb8d65ce98c4b272b193a621aa00a06aa96a40671e9e6a314239731b
SHA3-384 hash: d699a728a2893c566dfe42bac34d44e110e1e0c940b0fdf69289433b2b59f2534f43e69db79a015c43986963732291ba
SHA1 hash: 8fb9fe91e7480d1fff7cebd632538b6c88101c6b
MD5 hash: 5b5d7974d15cb7042c66574cd62d2b5e
humanhash: three-echo-mars-six
File name:01_exctracted.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:207'360 bytes
First seen:2021-09-23 15:21:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'648 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 6144:wLV6Bta6dtJmakIM5MrFjYgySEeVYTi9x7L:wLV6Btpmkzx4S93j
Threatray 2'917 similar samples on MalwareBazaar
TLSH T1BC14C06637A8493FE2DE8679712211039379C2E399C3F3EA28D465B35F663E10A171D3
Reporter Racco42
Tags:exe NanoCore

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
185.140.53.3:6746 https://threatfox.abuse.ch/ioc/225729/

Intelligence

File Origin
# of uploads :
1
# of downloads :
237
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
01_exctracted.exe
Verdict:
Malicious activity
Analysis date:
2021-09-23 15:23:53 UTC
Tags:
rat nanocore trojan
Link:
https://app.any.run/tasks/55e6ff05-705f-4a9e-b7ff-0e6b5bdb5f2f

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/190825/
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.Trojan.Nanocore-5
Create hunting rule

Malware family:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8403570f-24b0-4cf5-83ea-0cabc5177bca
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/856659
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
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 sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Uses dynamic DNS services
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fdbd3745cb8d65ce98c4b272b193a621aa00a06aa96a40671e9e6a314239731b/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2021-09-23 15:22:06 UTC
AV detection:
28 of 28 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7w6torolrvs45ggewjzlde5gegvabidkvfveazy6tzvdcqrzomnq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
2b8a102443d6ed4c84471a54f058f24f5f55485bba73ebd785fdce294e337110
NanoCore
305bf6557bcc3df14cf33993d14e03fa84a6bd7611a990402fae4522ff098454
NanoCore
3d8811d64e17d5ea06d0edae6163b90b2400d06d9afa60ae689d6fe9232bca86
NanoCore
437c9421ae36bc19198438f86b86a39de0d207449abef097eb9656743823c256
NanoCore
4d01d1b24f4f7487669486becc7ff8b43a126f56ffb3d8fcce8c66b200412475
NanoCore
4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9
NanoCore
5a8b4dc95322eed89a2c77350395f8c1f79394369bebec84703ae285092a37f5
NanoCore
9f96527c9f839559485e89c5c5ff8f95708035fd55c9fac0c2edf3764224d860
NanoCore
9fc2ec9a478ddf812c9687c805f340989dc0af33b48100ec6621e422035ce579
NanoCore
a276b0d2aaf8a132ffbe9ae16763975bcf38fc1e5a6419890712fc3de02b793f
NanoCore
+ 2'907 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/210923-srwtqaege7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
mynewvirom.duckdns.org:6746
Unpacked files
SH256 hash:
fdbd3745cb8d65ce98c4b272b193a621aa00a06aa96a40671e9e6a314239731b
MD5 hash:
5b5d7974d15cb7042c66574cd62d2b5e
SHA1 hash:
8fb9fe91e7480d1fff7cebd632538b6c88101c6b
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/4fb6d912-62af-4a72-aaee-a46895ba5948/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/fdbd3745cb8d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Nanocore
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/fdbd3745cb8d65ce98c4b272b193a621aa00a06aa96a40671e9e6a314239731b

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_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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/190825/

Comments