MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91966b77a6acc2fd64c773d8797a505c40ecd272ebb4b44a5757990b5e4939c5. 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: 5


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

SHA256 hash: 91966b77a6acc2fd64c773d8797a505c40ecd272ebb4b44a5757990b5e4939c5
SHA3-384 hash: 9cbb6f7860bb6e6a2a0a8dd5a3f8dd6922ddac58f5f7cc279a249f513c64369b37edd6f02533425488d6f635e782431d
SHA1 hash: 170877def8f7eadc68f50c7f3498275c27a3c96f
MD5 hash: 97089eaf4b479331d71a6fef6954cc7c
humanhash: cup-april-pasta-lima
File name:PO#T19887.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:362'496 bytes
First seen:2020-05-19 06:18:02 UTC
Last seen:2020-05-19 07:13:26 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:m9Isq2rRZCbNkYZTt0gPrFylp7SVu5AA4ClKwY29l+GfSsHrpb4hL:m9lkOAclMg5t4GBySVs
Threatray 1'178 similar samples on MalwareBazaar
TLSH BA746D2D570CEF68E637B775805A21478112F5E32EB2F63B9B81709E8901E8C1DDAD87
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: we.webservshop.live
Sending IP: 45.95.171.179
From: export@borntras.com
Reply-To: info@webservshop.live
Subject: PO#T19887
Attachment: POT19887.zip (contains "PO#T19887.exe")

NanoCore RAT C2:
xavi-bales.ddns.net:1610 (172.94.88.147)

Intelligence

File Origin
# of uploads :
2
# of downloads :
83
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.Siggen9.46891.23358.986.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-05-19 03:46:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
41 of 48 (85.42%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sglgw55gvtbp2zghopmhs6sqlraozuts5o2lissxk6mqwxsjhhcq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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0e7f94ab4570af441d76c77300a7de21812222c2411086ef709ba35f0dd438cd
NanoCore
394674b4e655b4c844746da331510aecd02162402ee5a267eda539753eebd5e9
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8490e3d97ac25a9e1e87a0270a30076cc38b75ca705e28d5c78b93968b0231fb
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86432e782ec0089c5cc180a225cf8aff59409c0ef773c0e10e6ddf898b0508bd
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b0450bd92e2100b37b46cbea0e8051b1865a7f69faf6b30671f1b4a045b85325
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c8718b1795499f8f6958c2665914bd1320a4a3a6b039f00d19ab7ca283ffb968
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d5fefea8edb768f5a72cbe2e312098cc2d3ef3894e8c7ba8acab776093e6d9fe
NanoCore
+ 1'168 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/201109-1tmwrddfqs/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
NTFS ADS
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
Loads dropped DLL
Executes dropped EXE
NanoCore
Malware Config
C2 Extraction:
172.94.88.147:1610
xavi-bales.ddns.net:1610
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

zip a5f6c5110a5d5e6f1b83f30aae877940d16cb8bb5233e8bb40556f0674971630

NanoCore

Executable exe 91966b77a6acc2fd64c773d8797a505c40ecd272ebb4b44a5757990b5e4939c5

(this sample)

  
Dropped by
MD5 40add2f997a258fd033c685e19fa4378
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 a5f6c5110a5d5e6f1b83f30aae877940d16cb8bb5233e8bb40556f0674971630

Comments