MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 24873a34409486481c4abf374e2b5c07095e5f95427553ec9a81d7e7551fbbe8. 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 1 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 24873a34409486481c4abf374e2b5c07095e5f95427553ec9a81d7e7551fbbe8
SHA3-384 hash: 21ff2820d69398c447051976067210b7aac62645b4259b13dd25fdcadecbfe996fbf95d5bb6526ca7d53500947baef18
SHA1 hash: fe9daac7ee1d95b604c4b916c7916d31798b1ba3
MD5 hash: a9f4fb75da0d6dcdd9fa424b55043539
humanhash: quiet-timing-beryllium-delta
File name:Urgent RFQAP65425652032921.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'058'816 bytes
First seen:2021-03-29 10:00:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:OngMhlt6TfFwI+pJ2iNd/6YtWe5asRpGanf:OgMhlt6TfFwI+pJ1vyY55aYpGc
Threatray 1'687 similar samples on MalwareBazaar
TLSH 6E35917C2EF9D2C6C5350A7842C9C4B946E91FF2CF52862AF5D40FCBE121BC5A50A52B
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
194.5.97.24:6546

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
194.5.97.24:6546 https://threatfox.abuse.ch/ioc/5771/

Intelligence

File Origin
# of uploads :
1
# of downloads :
138
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Urgent RFQAP65425652032921.exe
Verdict:
Malicious activity
Analysis date:
2021-03-29 10:03:48 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/9da94047-c0d8-4364-8bca-6c38785feba2

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/127538/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Win.Trojan.Mikey-9839945-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Gathering data
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/656725
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
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: 377294 Sample: Urgent RFQAP65425652032921.exe Startdate: 29/03/2021 Architecture: WINDOWS Score: 100 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Multi AV Scanner detection for dropped file 2->48 50 11 other signatures 2->50 8 Urgent RFQAP65425652032921.exe 7 2->8         started        12 Urgent RFQAP65425652032921.exe 2->12         started        process3 file4 34 C:\Users\user\AppData\...\nXSbNtyEfSr.exe, PE32 8->34 dropped 36 C:\Users\user\AppData\Local\...\tmp7E41.tmp, XML 8->36 dropped 52 Adds a directory exclusion to Windows Defender 8->52 14 Urgent RFQAP65425652032921.exe 8->14         started        18 powershell.exe 24 8->18         started        20 powershell.exe 24 8->20         started        22 schtasks.exe 1 8->22         started        signatures5 process6 dnsIp7 40 bigfish2345.ddns.net 194.5.97.24, 49726, 49727, 49730 DANILENKODE Netherlands 14->40 42 192.168.2.1 unknown unknown 14->42 38 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 14->38 dropped 24 schtasks.exe 14->24         started        26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        30 conhost.exe 22->30         started        file8 process9 process10 32 conhost.exe 24->32         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/24873a34409486481c4abf374e2b5c07095e5f95427553ec9a81d7e7551fbbe8/
Threat name:
ByteCode-MSIL.Trojan.Ursu
Create hunting rule
Status:
Malicious
First seen:
2021-03-29 10:01:06 UTC
AV detection:
16 of 48 (33.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=esdtuncassdeqhckx43u4k24a4ev4x4vij2vh3e2qhl6ovi7xpua._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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fbdbd6b6c6cd7a2b07d771d9969e53689f3601bbf7355ee49138b07511b88df7
NanoCore
+ 1'677 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/210329-5le8j2aeys/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
bigfish2345.ddns.net:6546
194.5.97.24:6546
Unpacked files
SH256 hash:
d436034270fb2d5380e4fcecc1ee6c821a1701aed96045fa13f597da16be08fb
MD5 hash:
00cbf73d8b9f03417a3a32957ec64ed4
SHA1 hash:
b862eff1cf240a5ad5325fd258892e534484a6e8
Link:
https://www.unpac.me/results/a2230d2d-2d8e-4233-b67d-da7c635a4da2/
SH256 hash:
24873a34409486481c4abf374e2b5c07095e5f95427553ec9a81d7e7551fbbe8
MD5 hash:
a9f4fb75da0d6dcdd9fa424b55043539
SHA1 hash:
fe9daac7ee1d95b604c4b916c7916d31798b1ba3
Link:
https://www.unpac.me/results/a2230d2d-2d8e-4233-b67d-da7c635a4da2/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.40
Link:
https://yomi.yoroi.company/submissions/24873a34409486481c4abf374e2b5c07095e5f95427553ec9a81d7e7551fbbe8

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:adonunix2
Create hunting rule
Author:Tim Brown @timb_machine
Description:AD on UNIX
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_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: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.

Cape
Cape
https://www.capesandbox.com/analysis/127538/

Comments