MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b6bb2781499406a147ead8d31ee99cb7e691908f86354690c8377f8133cacae5. 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: 6


Intelligence 6 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b6bb2781499406a147ead8d31ee99cb7e691908f86354690c8377f8133cacae5
SHA3-384 hash: 7381c56cd03991254abfe51cfb2b4cbacece7d3f7d4ecf21ed8381f910df9f0c6855658bcc4ce8fd7ead33bf80719d29
SHA1 hash: f6d1fdda435cad57106d0c01b20a15337212e05f
MD5 hash: d88342b9fbaaf1e2d9ea6dcbdb1c84a9
humanhash: speaker-lion-august-sweet
File name:PO PDF.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:423'936 bytes
First seen:2020-06-15 05:29:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:C75KTXJY+J+CKo4jjbogj7eY10GlfB8EVORL1gHJuZrB2um48Cno:C75X+RKo4jD6GlWEXArBJP
Threatray 1'256 similar samples on MalwareBazaar
TLSH E894BE153BE8872EE6EF997CE47159219B77B243DA43F74E994C70FA10833C09812B66
Reporter abuse_ch
Tags:exe NanoCore RAT Yahoo


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: sonic312-46.consmr.mail.ir2.yahoo.com
Sending IP: 77.238.178.133
From: Andrea Phelps <andreainternational33@yahoo.com>
Subject: Purchase order
Attachment: PO PDF.z (contains "PO PDF.exe")

NanoCore RAT C2:
fackrul.ddns.net:6674 (95.211.208.59)

Intelligence

File Origin
# of uploads :
1
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/10210/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WEZ.5146.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-06-15 05:31:05 UTC
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=w25spakjsqdkcr7k3djr52m4w7tjdeepqy2unegig57ycm6kzlsq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
062cf3944b0b563efc115688ff8910721db670950acf80c0020351b7d97b48c5
NanoCore
0fb26042a8a31d0db10d1302875a6f44d5aa5dd369b309795172dc957eef5c4a
NanoCore
34f1b02bdccebe61deb518957acd32c9a64ce358102db3be15ed7d46f9945004
NanoCore
37bddf42525de673f8c88355875c5bed4035d5c5100ebece7c3aae162d3ba68f
NanoCore
99c574b7d4be75a2323c02a53b378b067359be1adf925e5a17414226bd42ddbe
NanoCore
ad9b31618184bb980a5e825fcb465913f3002077043fc5e3a761653473a4dce0
NanoCore
b021142c3c9575a16eb787ba56f17e01925370db0b3d24afa41145b83f8f094f
NanoCore
c21ee6cfa09a79362a7f3b03781a7f252d10b41da48dea433e06fe4a0df26eee
NanoCore
d0a9cde7ebed2daf4306e0e76a341e6c4293bf9904ed464f5bfcb462dc0999d0
NanoCore
fa8b5da63665ba268ec6923aa0bd26662e9dea318d80a7ab659065724c94868a
NanoCore
+ 1'246 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/201109-e2tf13whe2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Drops startup file
NanoCore
Malware Config
C2 Extraction:
fackrul.ddns.net:6674
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

z 4ac47aacf3ec3e74b0a165aa5ba5397f0fbc477bbc9061fec24579da1569d1e0

NanoCore

Executable exe b6bb2781499406a147ead8d31ee99cb7e691908f86354690c8377f8133cacae5

(this sample)

  
Dropped by
MD5 9eb7cfc30e1b1cf93497898964ca11d7
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 4ac47aacf3ec3e74b0a165aa5ba5397f0fbc477bbc9061fec24579da1569d1e0
Cape
Cape
https://www.capesandbox.com/analysis/10210/

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