MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a7d56c6c4f937173a0a45145765feb562b1fae368d9297a03dd4ea098d90d03. 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: 9


Intelligence 9 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8a7d56c6c4f937173a0a45145765feb562b1fae368d9297a03dd4ea098d90d03
SHA3-384 hash: 349737607aafaf0d6ac854337c1b7e3858ca9bb4014f9694af145b472845fddb73989ba84c426a7d1c9b10e67c10e5bb
SHA1 hash: 6ea28b8ba49d332c9c937b1d2bf4a212bb50ab65
MD5 hash: 06ab01b61a81d223e61fc64a11b50a39
humanhash: lion-blue-cola-magazine
File name:06ab01b61a81d223e61fc64a11b50a39.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:535'552 bytes
First seen:2021-02-23 16:08:33 UTC
Last seen:2021-02-23 18:06:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'473 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:tYsEVi1E5M04vDTPGHKXSCCCP1uZuBG6v8eqDwx0:jCubGHJCCCPCd28y0
Threatray 1'588 similar samples on MalwareBazaar
TLSH 5CB4CF206A9C5B0DD03EB7B85192525F87F1B222D322E69F3DE561DB1D22F408B62F17
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore RAT C2:
jeksabide.duckdns.org

Intelligence

File Origin
# of uploads :
2
# of downloads :
119
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/118719/
Detection(s):
SecuriteInfo.com.Variant.Razy.847111.24257.26793.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
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.
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/615630
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Detected Nanocore Rat
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
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
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 356819 Sample: QTxFuxF5NQ.exe Startdate: 23/02/2021 Architecture: WINDOWS Score: 100 57 Malicious sample detected (through community Yara rule) 2->57 59 Multi AV Scanner detection for dropped file 2->59 61 Sigma detected: Scheduled temp file as task from temp location 2->61 63 12 other signatures 2->63 8 QTxFuxF5NQ.exe 7 2->8         started        12 RegSvcs.exe 4 2->12         started        14 dhcpmon.exe 4 2->14         started        16 dhcpmon.exe 3 2->16         started        process3 file4 45 C:\Users\user\AppData\Roaming\CDaJolZUw.exe, PE32 8->45 dropped 47 C:\Users\...\CDaJolZUw.exe:Zone.Identifier, ASCII 8->47 dropped 49 C:\Users\user\AppData\Local\...\tmp1954.tmp, XML 8->49 dropped 51 C:\Users\user\AppData\...\QTxFuxF5NQ.exe.log, ASCII 8->51 dropped 67 Writes to foreign memory regions 8->67 69 Injects a PE file into a foreign processes 8->69 18 RegSvcs.exe 1 13 8->18         started        23 schtasks.exe 1 8->23         started        25 conhost.exe 12->25         started        27 conhost.exe 14->27         started        29 conhost.exe 16->29         started        signatures5 process6 dnsIp7 53 jeksabide.duckdns.org 197.210.135.138, 8989 VCG-ASNG Nigeria 18->53 55 127.0.0.1 unknown unknown 18->55 41 C:\Users\user\AppData\Roaming\...\run.dat, International 18->41 dropped 43 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->43 dropped 65 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->65 31 schtasks.exe 1 18->31         started        33 schtasks.exe 1 18->33         started        35 conhost.exe 23->35         started        file8 signatures9 process10 process11 37 conhost.exe 31->37         started        39 conhost.exe 33->39         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8a7d56c6c4f937173a0a45145765feb562b1fae368d9297a03dd4ea098d90d03/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-02-23 16:09:06 UTC
AV detection:
15 of 26 (57.69%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rj6vnrwe7e3rooqkiukfozp6wvrld6xdndmss6qd3vhkbggzbubq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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e26e07749118e8284c28e50553c62bdbe327234b801ffdf2eedb8663444aa459
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f3ac633354efc183e1705dd9e042d39b62208735f6f9e83534fb21c9f32b5d70
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f4bf592fde78af7ed0b06166ac8265d7b65a2457b9a61f12c2e3a4fad641ac19
NanoCore
+ 1'578 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210223-3ar3he21de/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
NanoCore
Malware Config
C2 Extraction:
jeksabide.duckdns.org:8989
127.0.0.1:8989
Unpacked files
SH256 hash:
e624003658c4f8b349f567c82229fd15d1e63d3d20fe6f7b4388403038cd2a44
MD5 hash:
b6ce7c1d81b9271eab825ea63de154c3
SHA1 hash:
0e7b89555314f8908c1098b652c9bf50e5ecc27b
Link:
https://www.unpac.me/results/ae7c3d81-cc7a-4c9c-b185-d16a20ec0e44/
SH256 hash:
8a7d56c6c4f937173a0a45145765feb562b1fae368d9297a03dd4ea098d90d03
MD5 hash:
06ab01b61a81d223e61fc64a11b50a39
SHA1 hash:
6ea28b8ba49d332c9c937b1d2bf4a212bb50ab65
Link:
https://www.unpac.me/results/ae7c3d81-cc7a-4c9c-b185-d16a20ec0e44/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/8a7d56c6c4f937173a0a45145765feb562b1fae368d9297a03dd4ea098d90d03

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.

Cape
Cape
https://www.capesandbox.com/analysis/118719/

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