MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b394295b8a2a6f1841abf35b7550a1e68a13ffd0fecd213f5745f93f92f8257f. 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: 14


Intelligence 14 IOCs 1 YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b394295b8a2a6f1841abf35b7550a1e68a13ffd0fecd213f5745f93f92f8257f
SHA3-384 hash: 3557277d8501a1e55e90c479d9cc7337cc46c26763af6364bd631393ede1bdfe5d04730be8b0046e897040884557b92b
SHA1 hash: 0f8b060655dc8b3b6d7e88cf65da3e5a617613f7
MD5 hash: 755649161e748a778f804363c33a65fe
humanhash: mango-cardinal-nine-two
File name:download.dat.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:207'360 bytes
First seen:2021-09-17 16:36:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 3072:CzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIcblRB+wcIP8wFyHfpU+go/rV:CLV6Bta6dtJmakIM5TvZPvy/pj/rV
Threatray 2'883 similar samples on MalwareBazaar
TLSH T1EA14CF2677A84A3FE2DE8679612252539339C2E398C3F3DE58D465B74F2A3E106071D3
Reporter James_inthe_box
Tags:exe NanoCore

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
20.52.46.119:52190 https://threatfox.abuse.ch/ioc/223025/

Intelligence

File Origin
# of uploads :
1
# of downloads :
389
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
download.dat.exe
Verdict:
Malicious activity
Analysis date:
2021-09-17 16:39:31 UTC
Tags:
trojan nanocore rat
Link:
https://app.any.run/tasks/078c7a4c-5d70-4136-acb0-627ba7176e59

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/188744/
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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
nanocore obfuscated packed rat
Link:
https://www.filescan.io/uploads/61752d6bdb358dd15ed92b61/reports/47664cbb-a185-451e-8545-ecbdb6250eb8/overview
Malware family:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c821900c-a20a-4edd-9250-9dc378883749
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/852865
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Detected Nanocore Rat
Detected unpacking (overwrites its own PE header)
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b394295b8a2a6f1841abf35b7550a1e68a13ffd0fecd213f5745f93f92f8257f/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2021-09-17 16:36:46 UTC
AV detection:
44 of 45 (97.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wokcsw4kfjxrqqnl6nnxkufb42fbh76q73gscp2xix4t7exyev7q._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
1acc33db801054b60eab3f53788882563ebb7ffeb7a8b9240e7c1780361ed7b1
NanoCore
1f39a6b78d949b49801703687e3ee181ddfba0e21b13e094f584808d5030ebe2
NanoCore
24f649ba2d0821e1ac7c9bdc28a03c29e0494d5a52913343ae1ed8112d8acb84
NanoCore
29d59cff833693b1df33808ed34e64911fbdc2ba6e750c65018e559cecac19f6
NanoCore
6ac81ad425d5c181006b6cce9ebdd5ab5fcca808df15736d9bcbf561d216e447
NanoCore
6db62dd5519b4afb93f0b949b741d384525425f1032ecc52e7196d34243cca4b
NanoCore
99b69c71a045d2993d1d6076a70f372e4924e02ad7c58482d54eb748675c1b1d
NanoCore
b982293fd90384c609fb3879b14af3ab6a780c0cb9f3cb6baf1fe81a3f400e29
NanoCore
+ 2'873 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/210917-t4ss9sageq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Drops file in Program Files directory
Adds Run key to start application
Checks whether UAC is enabled
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
20.52.46.119:52190
Unpacked files
SH256 hash:
b394295b8a2a6f1841abf35b7550a1e68a13ffd0fecd213f5745f93f92f8257f
MD5 hash:
755649161e748a778f804363c33a65fe
SHA1 hash:
0f8b060655dc8b3b6d7e88cf65da3e5a617613f7
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/10c142f3-4e81-4a90-974f-f27fe9e8d50d/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b394295b8a2a6f1841abf35b7550a1e68a13ffd0fecd213f5745f93f92f8257f

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/188744/

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