MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 baf8e236476a6b0340139a2b1db14038faa96d8319399f2ef14fef201018e232. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: baf8e236476a6b0340139a2b1db14038faa96d8319399f2ef14fef201018e232
SHA3-384 hash: 7b8f8104fc0a8d861ee20a09b26a42521883ce7c94d2097ef8816bed44860848a1094eda76180f894c3b0a01d346b1db
SHA1 hash: 038a2f0cb01f290cb94ae2778a636c62a00648f6
MD5 hash: b024bb046b09f3060cd3b5f5143706cc
humanhash: stairway-early-connecticut-oven
File name:CV.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:503'808 bytes
First seen:2022-04-06 14:04:08 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 12288:b0liFLLTR5gds3nz/apWtPB6P5qVGnMlR3F0Eq:4cLLfyWnz/awpa5q+MlR3FD
Threatray 4'085 similar samples on MalwareBazaar
TLSH T1EEB4234983746622D6EF6F7034B9D64437F0B25AE742EEDDDE8811887905BC60B30BE9
Reporter GovCERT_CH
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
1
# of downloads :
285
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/261298/
Detection(s):
SecuriteInfo.com.Scr.Malcodegdn30.11542.27979.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed update.exe
Link:
https://www.filescan.io/uploads/624d9e12aa7e43c6a6c2c52d/reports/9069b55c-d3d3-47dc-9df7-1da04c89e90f/overview
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/2a38348c-25c2-45bb-9cf5-9803c747b1a0
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/971554
Signature
.NET source code contains potential unpacker
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)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 604040 Sample: CV.exe Startdate: 06/04/2022 Architecture: WINDOWS Score: 100 34 brightnano2.ddns.net 2->34 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Multi AV Scanner detection for domain / URL 2->44 46 Found malware configuration 2->46 48 13 other signatures 2->48 9 CV.exe 3 2->9         started        13 CV.exe 2 2->13         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\CV.exe.log, ASCII 9->32 dropped 50 Uses schtasks.exe or at.exe to add and modify task schedules 9->50 52 Injects a PE file into a foreign processes 9->52 15 CV.exe 11 9->15         started        20 CV.exe 2 13->20         started        22 CV.exe 13->22         started        signatures6 process7 dnsIp8 36 brightnano2.ddns.net 2.56.56.126, 1818, 49770, 49771 GBTCLOUDUS Netherlands 15->36 38 192.168.2.1 unknown unknown 15->38 28 C:\Users\user\AppData\Roaming\...\run.dat, data 15->28 dropped 30 C:\Users\user\AppData\Local\...\tmpC43D.tmp, XML 15->30 dropped 40 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->40 24 schtasks.exe 1 15->24         started        file9 signatures10 process11 process12 26 conhost.exe 24->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/baf8e236476a6b0340139a2b1db14038faa96d8319399f2ef14fef201018e232/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-04-05 22:59:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xl4oenshnjvqgqattivr3mkahd5ks3mdde4z6lxrj7xsaeay4iza._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
0610cb3a060ef7b21f8346e3aaba432daa7dd55553832c53aca23f76af695333
NanoCore
0b1396805e736275f16550f3ecc5361cfcccc468094b4ea910ded8eaf430a5b3
NanoCore
263565e9f77b5ee48474855d471315dd56d1bcabe4d037fb380d404b3afcd14e
NanoCore
45272694709263868523b77d0561757378cc2e8aa7d64c7ed21deaacbdf88b5b
NanoCore
862965d573744607a29489905cfc8abdd8f187874d476ef4263eee7e5175630a
NanoCore
8bf0518cd0c607aa51073dfe422f6af43ab8b43523bd0c182cc6172c9ecb9072
NanoCore
a30622ef748dbcae11f6a12cf32c096527e55364b32ae546ea1b729c121128ee
NanoCore
adac602d329a95580921b519350a4eefa10c98f593b6be76855b31d8bea64909
NanoCore
b771e6a9cb56600b3cb46440bd7af362598c9904350163754898505d35cff4ad
NanoCore
+ 4'075 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger spyware stealer suricata trojan
Link:
https://tria.ge/reports/220406-rdtxjagfdj/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
brightnano2.ddns.net:1818
2.56.59.113:1818
Unpacked files
SH256 hash:
a7e378f2b3c50b8391551ad816674626f0795e0fcb4db860c3535884f3682deb
MD5 hash:
b0b7f114c5ec59b2a5f95a5806bfc952
SHA1 hash:
b360b669fc7b3c0943977aceede9f72f7cb700e3
Link:
https://www.unpac.me/results/107d1215-d283-482b-8b1a-fb5ea6b9d5b4/
SH256 hash:
0107b7284eec2d8eae8cd4d2a69bb55cb0b8c63edfcacda71a5b8cf31a0c7ee9
MD5 hash:
996a8c7465d9314d698c8f5df849dce5
SHA1 hash:
560791fa2e339f17aab61df3c83648e5c0aa0bdb
Link:
https://www.unpac.me/results/107d1215-d283-482b-8b1a-fb5ea6b9d5b4/
SH256 hash:
e18aed95ab906ffe7c0531fade1a44dd7a2828b7c195f7c87a7f5f355456fc1c
MD5 hash:
f996cd4257ea5ae5b35b4d42b60838f0
SHA1 hash:
55e0f008993f4be8e09d3044860b047ff2fe58f7
Link:
https://www.unpac.me/results/107d1215-d283-482b-8b1a-fb5ea6b9d5b4/
SH256 hash:
6aee14683ae6b7074101bb1088922dbb127e4dc05490484c22b9d40b8cf060cb
MD5 hash:
af839bd03889634343205ac30742e94e
SHA1 hash:
3dd206eb47f756afd9c8e4333084a486479abe1e
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/107d1215-d283-482b-8b1a-fb5ea6b9d5b4/
Parent samples :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 hash:
baf8e236476a6b0340139a2b1db14038faa96d8319399f2ef14fef201018e232
MD5 hash:
b024bb046b09f3060cd3b5f5143706cc
SHA1 hash:
038a2f0cb01f290cb94ae2778a636c62a00648f6
Link:
https://www.unpac.me/results/107d1215-d283-482b-8b1a-fb5ea6b9d5b4/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/baf8e236476a6b0340139a2b1db14038faa96d8319399f2ef14fef201018e232

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

NanoCore

Executable exe baf8e236476a6b0340139a2b1db14038faa96d8319399f2ef14fef201018e232

(this sample)

  
Dropped by
nanocore
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/261298/

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