MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ec446e3da134c103fc81582cf5c43d8f55f7e44297a9839ab2989c1ff1de54d6. 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 YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ec446e3da134c103fc81582cf5c43d8f55f7e44297a9839ab2989c1ff1de54d6
SHA3-384 hash: b7536792ee30049a6914f2f6c5c1daadca72573b74f2d4e1c088a66b14645187fac88972c1ebc872775ee8022fa73698
SHA1 hash: c6e3a586d7df319b4476826e08d749b623ebfde5
MD5 hash: 4ffb536b88223713b10d685dd11d6504
humanhash: paris-mike-cat-alpha
File name:4ffb536b88223713b10d685dd11d6504.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:510'464 bytes
First seen:2021-03-06 09:21:10 UTC
Last seen:2021-03-06 10:37:36 UTC
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:x+NDikhAXmfBxMa24jTiBmptTQg2U1pzmYoEkK96f:x+xikh3iATiBmnp3D2
Threatray 2'111 similar samples on MalwareBazaar
TLSH CEB4DF256B7D14A2EA579F3B353B0625BCE163E2194EE8202BECB1871A1E37C11FC1D1
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore RAT C2:
194.5.98.202:4488

Intelligence

File Origin
# of uploads :
3
# of downloads :
352
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
QUOTATION774839_PR9745RFQ_SHARAFUDHEEN.doc
Verdict:
Malicious activity
Analysis date:
2021-03-06 06:58:52 UTC
Tags:
ole-embedded exploit CVE-2017-11882
Link:
https://app.any.run/tasks/cada90d9-7fa6-4b1c-9451-c9a48edd3c11

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/122612/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.6572.11729.31908.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Creating a file
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Creating a file in the %temp% directory
Launching a process
Deleting a recently created file
Sending a UDP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
Enabling autorun by creating a file
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/630760
Signature
.NET source code contains potential unpacker
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Beds Obfuscator
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 364352 Sample: RZA6T8w3Fz.exe Startdate: 07/03/2021 Architecture: WINDOWS Score: 100 51 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->51 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 12 other signatures 2->57 8 RZA6T8w3Fz.exe 3 2->8         started        12 dhcpmon.exe 2 2->12         started        14 dhcpmon.exe 3 2->14         started        16 RZA6T8w3Fz.exe 2 2->16         started        process3 file4 47 C:\Users\user\AppData\...\RZA6T8w3Fz.exe.log, ASCII 8->47 dropped 61 Injects a PE file into a foreign processes 8->61 18 RZA6T8w3Fz.exe 1 16 8->18         started        23 dhcpmon.exe 2 12->23         started        25 dhcpmon.exe 12->25         started        27 dhcpmon.exe 2 14->27         started        29 RZA6T8w3Fz.exe 2 16->29         started        signatures5 process6 dnsIp7 49 194.5.98.202, 4488, 49734, 49739 DANILENKODE Netherlands 18->49 39 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->39 dropped 41 C:\Users\user\AppData\Roaming\...\run.dat, data 18->41 dropped 43 C:\Users\user\AppData\Local\...\tmpCA8C.tmp, XML 18->43 dropped 45 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 18->45 dropped 59 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->59 31 schtasks.exe 1 18->31         started        33 schtasks.exe 1 18->33         started        file8 signatures9 process10 process11 35 conhost.exe 31->35         started        37 conhost.exe 33->37         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ec446e3da134c103fc81582cf5c43d8f55f7e44297a9839ab2989c1ff1de54d6/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-03-06 05:41:46 UTC
AV detection:
15 of 47 (31.91%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5rcg4pnbgtaqh7eblawplrb5r5k7pzccs6uyhgvstcob74o6ktla._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
258856f05819789b47e0bed58b1df479976a355cd30b953b23f9e2f5d286578a
NanoCore
2acf6c2398a12dc97ff2ceec4f348ed6338c4aafb2dcfeb24856cf8526d12a9d
NanoCore
4ab0583ffd51ef40c7531a93f294c16dfbcfaa1daf13835b8bd231c269a780c8
NanoCore
4f0035201ba7a3a536727862b8ac8dbf389038c5af1674ff7a982190fed1e30b
NanoCore
644a0403a3c8254a3846b8c07aa7fdeb2cfe21aa5630ca3100949869f60ae407
NanoCore
83a5d6da50195774a35e46a89d8d9854b4282ec5a3fffa02fa0f7c90d274117f
NanoCore
db591a08743176655e567ddffcbbd79b9e2e31feadc1feb54a0200296a93d53d
NanoCore
e26e07749118e8284c28e50553c62bdbe327234b801ffdf2eedb8663444aa459
NanoCore
f3ac633354efc183e1705dd9e042d39b62208735f6f9e83534fb21c9f32b5d70
NanoCore
f4bf592fde78af7ed0b06166ac8265d7b65a2457b9a61f12c2e3a4fad641ac19
NanoCore
+ 2'101 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210306-q6wcqbvhm6/
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
Beds Protector Packer
NanoCore
Malware Config
C2 Extraction:
194.5.98.202:4488
Unpacked files
SH256 hash:
7847ce1f23324cab5e936db4248d05ecde3ab036725df2ea4aba7c9305c8162f
MD5 hash:
887cbed3655ad4efc07205b2060207c0
SHA1 hash:
d827a2684b05aa0c9af6e9c6f79fad56679176e3
Link:
https://www.unpac.me/results/d849701d-3e71-4eb5-b751-c9a39981095c/
SH256 hash:
3a18977c235b1e23fdcc28651590c8327220add50b63320d7aaf9f241fa2dab4
MD5 hash:
53072cda4ec18e2664b7906b7793018d
SHA1 hash:
f2716eec6f71bdc56aefe3fc5623918fa31a7158
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/d849701d-3e71-4eb5-b751-c9a39981095c/
SH256 hash:
97024f17003dd3d31dab64c4d1b8251e50d428644eb59ed3692ad79ce42019cf
MD5 hash:
8cd28be4bd9a1404c6d3600db32b3ed1
SHA1 hash:
fb90b0ca51118e771390d58b19d0a404ee14cfbc
Link:
https://www.unpac.me/results/d849701d-3e71-4eb5-b751-c9a39981095c/
SH256 hash:
ec446e3da134c103fc81582cf5c43d8f55f7e44297a9839ab2989c1ff1de54d6
MD5 hash:
4ffb536b88223713b10d685dd11d6504
SHA1 hash:
c6e3a586d7df319b4476826e08d749b623ebfde5
Link:
https://www.unpac.me/results/d849701d-3e71-4eb5-b751-c9a39981095c/
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/ec446e3da134c103fc81582cf5c43d8f55f7e44297a9839ab2989c1ff1de54d6

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_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.

Web download

NanoCore

Executable exe ec446e3da134c103fc81582cf5c43d8f55f7e44297a9839ab2989c1ff1de54d6

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1050070/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/122612/

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