MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4c98f097a7d17f8919c172ba7fe52b8600d8edd484ded4637dade9cbb9201c18. 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: 8


Intelligence 8 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4c98f097a7d17f8919c172ba7fe52b8600d8edd484ded4637dade9cbb9201c18
SHA3-384 hash: 35c88f9833739a76b9f3b2e539ea9dbd71ff9148cb47e13b344f7ee380e7854685427ff08e360e45ec50dfc0016f8cef
SHA1 hash: b12a770ecd808ae84d48f428eee8ff701c520de1
MD5 hash: 1e310be27208ebea154c1910a83c7332
humanhash: diet-coffee-aspen-kansas
File name:Jqfv6hf2mh0QvMk.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:437'248 bytes
First seen:2020-06-25 12:35:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:5Uw6/z4VHS20YzAc5eLI53A3DJ925TWPlIfW1YmAB2Lp1JndBCd3GQFkb5f:WP/zQHbzAc5uDnET2sm42TJdBPzb5f
Threatray 1'196 similar samples on MalwareBazaar
TLSH E294F028135CCF5AD6BD47BDD0E1201583B89606324BFBAA9EC074ED2DE37E5890B257
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: server0.wynntrade.pw
Sending IP: 23.238.49.34
From: Tassos Krokos <tasos.krokos@gluesystem.gr>
Reply-To: Tassos Krokos <jihoseoyun20@gmail.com>
Subject: STATEMENT OF ACCOUNT 25-06-2020
Attachment: Receipt 133927392 25-06-2020.iso (contains "Jqfv6hf2mh0QvMk.exe")

NanoCore RAT C2:
osharay.ddns.net:49291 (37.49.230.92)

Intelligence

File Origin
# of uploads :
1
# of downloads :
82
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/14262/
Detection(s):
SecuriteInfo.com.Generic.mg.181bf63f744587d9.5579.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Creating a file in the %AppData% subdirectories
Connection attempt
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4c98f097a7d17f8919c172ba7fe52b8600d8edd484ded4637dade9cbb9201c18/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-06-25 13:53:36 UTC
AV detection:
21 of 27 (77.78%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jsmpbf5h2f7ysgobok5h7zjlqyanr3ouqtpniy35vxu4xojadqma._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
035257ae0a018773a432a265b22973d106cca4440d036db259372840a18bf25a
NanoCore
080dd774b0a6831dda34dc5eb8eb7f6e7f886407cf5a9ef0a47a819bb072c829
NanoCore
40afcc6e1d0b2d6184ac09a8dfcfef7298dadbe2bc7abf9f6734c5358fdcd9d1
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7039f9766e215e062bb06afd3136a52616154b87eaddda81923a664a4ce2e40b
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bc1fe9a18fa14134b8a864f83aafe096bdb62d4355024b906ea78dbe2fa3b0fb
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bd06d782b92aa3a26b476fb5f8c89127d8c663b6a78b40cc62bf17975be348d5
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c0de7f1d595e6c5237f2d30f48bd2de0f964dd15f56a93a41b8de1c8d7e9bb19
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d191e42d3944f8837d148ddd357df361c1147f885e2210fe0dc22390a7deb3a5
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d290c553a74997c9e3c6fb11f2f369daf4dea8dffa9499b3c58fe92073ddd36d
NanoCore
fd0cd831a2b4aaaf931179f6306bd0f77984640e9216b0adb7e172d471877954
NanoCore
+ 1'186 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
evasion trojan keylogger stealer spyware family:nanocore
Link:
https://tria.ge/reports/200625-wetl6rpypn/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
osharay.ddns.net:49291
Please note that we are no longer able to provide a coverage score for Virus Total.

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_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.

Malspam

NanoCore

iso feb3f9dea6e9ef879ac0cff4499f2b7e1c49b1c5fb487baf6c44494834bdb676

NanoCore

Executable exe 4c98f097a7d17f8919c172ba7fe52b8600d8edd484ded4637dade9cbb9201c18

(this sample)

  
Dropped by
MD5 8f8372f70c8ab59c7c8091b2b1de99e2
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/14262/
  
Dropped by
SHA256 feb3f9dea6e9ef879ac0cff4499f2b7e1c49b1c5fb487baf6c44494834bdb676

Comments