MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 573b1dd9da735c7ca71132db9e6e8cb9fb5c8293b2f185d10b877ed33a203e2f. 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: 12


Intelligence 12 IOCs 1 YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 573b1dd9da735c7ca71132db9e6e8cb9fb5c8293b2f185d10b877ed33a203e2f
SHA3-384 hash: 2ba59d16054ce96c14ddda6c8cbb31a4983a1f7fc366b72c608fe077f16feb3e19d0fe88e24a4886a377997fc91b17cf
SHA1 hash: 149b1ee6d5bc3c91cbb758811f599eb3e6394b5e
MD5 hash: 46b282bdc8af51c89f4a76dbe59d2014
humanhash: carolina-nevada-october-colorado
File name:46b282bdc8af51c89f4a76dbe59d2014.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:585'728 bytes
First seen:2022-04-02 16:10:45 UTC
Last seen:2022-04-02 17:05:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:COXHWEJmcOGTqVVmW2ktkANmYNOUEdto60xw5tvzMYCacpygoiUKla:nXxoGOVV5/NEUEtLCWzlX4Fa
Threatray 4'174 similar samples on MalwareBazaar
TLSH T112C4F1493694B1DEC82BCF7A9AE42C24AA317A674317C20B144B029D9A1DBD7CF157F3
File icon (PE):PE icon
dhash icon f0cc8e9cf48cdce0 (11 x RemcosRAT, 4 x NanoCore, 3 x Formbook)
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
37.0.11.76:6991

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
37.0.11.76:6991 https://threatfox.abuse.ch/ioc/486321/

Intelligence

File Origin
# of uploads :
2
# of downloads :
521
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1267.11550.32004.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
nanocore obfuscated packed
Link:
https://www.filescan.io/uploads/624875971f204239486e7090/reports/4d7b984a-d6f6-43d5-b50a-b3cb88794f65/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/8a130c79-499f-4470-9a96-40005eab6d6e
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/969429
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 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: 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 signatures2 2 Behavior Graph ID: 601916 Sample: y93k4iV3FR.exe Startdate: 02/04/2022 Architecture: WINDOWS Score: 100 49 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->49 51 Multi AV Scanner detection for domain / URL 2->51 53 Found malware configuration 2->53 55 15 other signatures 2->55 8 y93k4iV3FR.exe 3 2->8         started        12 dhcpmon.exe 3 2->12         started        14 y93k4iV3FR.exe 2 2->14         started        16 dhcpmon.exe 2->16         started        process3 file4 45 C:\Users\user\AppData\...\y93k4iV3FR.exe.log, ASCII 8->45 dropped 59 Uses schtasks.exe or at.exe to add and modify task schedules 8->59 61 Injects a PE file into a foreign processes 8->61 18 y93k4iV3FR.exe 1 16 8->18         started        23 dhcpmon.exe 2 12->23         started        25 y93k4iV3FR.exe 2 14->25         started        27 dhcpmon.exe 16->27         started        signatures5 process6 dnsIp7 47 newnano03.ddns.net 37.0.11.76, 49763, 49764, 49771 WKD-ASIE Netherlands 18->47 37 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->37 dropped 39 C:\Users\user\AppData\Roaming\...\run.dat, data 18->39 dropped 41 C:\Users\user\AppData\Local\...\tmp6D02.tmp, XML 18->41 dropped 43 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 18->43 dropped 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->57 29 schtasks.exe 1 18->29         started        31 schtasks.exe 1 18->31         started        file8 signatures9 process10 process11 33 conhost.exe 29->33         started        35 conhost.exe 31->35         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/573b1dd9da735c7ca71132db9e6e8cb9fb5c8293b2f185d10b877ed33a203e2f/
Threat name:
Win32.Trojan.Lazy
Create hunting rule
Status:
Malicious
First seen:
2022-03-31 07:34:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
21 of 42 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=k45r3wo2onohzjyrglnz43umxh5vzautwlyyluilq57ngorahyxq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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8bf0518cd0c607aa51073dfe422f6af43ab8b43523bd0c182cc6172c9ecb9072
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a30622ef748dbcae11f6a12cf32c096527e55364b32ae546ea1b729c121128ee
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adac602d329a95580921b519350a4eefa10c98f593b6be76855b31d8bea64909
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b771e6a9cb56600b3cb46440bd7af362598c9904350163754898505d35cff4ad
NanoCore
+ 4'164 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/220402-tmxe5abfek/
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
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
newnano03.ddns.net:6991
Unpacked files
SH256 hash:
aef6b5a8b257f12296e2ebeed9204b06321b074f9ad8d6008adb3a9c7f2d7c1e
MD5 hash:
172016bf700ed9f42369204f492e23a4
SHA1 hash:
fb8dd59477c1e840b46b3cec74edf48df5b6397f
Link:
https://www.unpac.me/results/226d5ad3-c1f9-4e82-b032-550621640132/
SH256 hash:
a65b0f651f4cf75dc775629b69924853abf281d9bc06555697eb1d9e580f3c59
MD5 hash:
ae364676c05f3f982ee39b33d85d2537
SHA1 hash:
d2fcd081c253621a2282c3f5f74f1417dfc23181
Link:
https://www.unpac.me/results/226d5ad3-c1f9-4e82-b032-550621640132/
SH256 hash:
d13fc77d202951e09a0370d459f878382edf8f9f15e3c629e0878835f266d028
MD5 hash:
0b63d6a52e681ff1b48cede1ba72fdc9
SHA1 hash:
9152e9c64f849e6fd5bedf22c2f893cffddefa62
Link:
https://www.unpac.me/results/226d5ad3-c1f9-4e82-b032-550621640132/
SH256 hash:
21f150452561893923f71a0c34d85fce6750ab62dae09bcf05c931f6ec5b5829
MD5 hash:
f01147616aaf34d2a7befafbf69d95b8
SHA1 hash:
71a7b136a761d84cd2b553a5cfe648938b883509
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/226d5ad3-c1f9-4e82-b032-550621640132/
SH256 hash:
573b1dd9da735c7ca71132db9e6e8cb9fb5c8293b2f185d10b877ed33a203e2f
MD5 hash:
46b282bdc8af51c89f4a76dbe59d2014
SHA1 hash:
149b1ee6d5bc3c91cbb758811f599eb3e6394b5e
Link:
https://www.unpac.me/results/226d5ad3-c1f9-4e82-b032-550621640132/
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/573b1dd9da735c7ca71132db9e6e8cb9fb5c8293b2f185d10b877ed33a203e2f

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
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: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.

Comments