MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1583c29f396b51c03866ecbac92dfae57d41c361d8f6f5ae71600a84a4b9033d. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1583c29f396b51c03866ecbac92dfae57d41c361d8f6f5ae71600a84a4b9033d
SHA3-384 hash: a533bbf9bffbe3fe5312b03409ce4b472c527c6a9f65836b1edf8615f98e36e9aadf0eff917078f20dfd6df762d77708
SHA1 hash: 82b1b98f103f6694b3f45368f3c77481857ed28c
MD5 hash: b60d09f2dce10213744504e38a4036c0
humanhash: arizona-whiskey-venus-romeo
File name:BL-Copy_pdf.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:497'664 bytes
First seen:2020-07-21 06:16:41 UTC
Last seen:2020-07-21 07:24:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 6144:f+fUYeG3jMpiAGk4roQqCzmyRw6TB7sbnz+x/u6b8ZRcgv+4csDK4I+zkcYHp93h:fgHvJEnK1flT9YK4I+dTu
Threatray 1'208 similar samples on MalwareBazaar
TLSH CBB47B10E7B84AC9E3BA57BCE474011087B4B51AA7EAE75D0B91F0ED2822750DB13F67
Reporter abuse_ch
Tags:exe NanoCore nVpn RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: lukoils.pw
Sending IP: 192.236.176.137
From: Mac World Logistic <sales5@macworldlogistic.com>
Subject: RE: PRE-SHIPMENT DETAILS
Attachment: BL-Copy_pdf.gz (contains "BL-Copy_pdf.exe")

NanoCore RAT C2:
bornsinner.myq-see.com:3941 (194.5.98.58)

Pointing to nVpn:

% Information related to '194.5.98.0 - 194.5.98.255'

% Abuse contact for '194.5.98.0 - 194.5.98.255' is 'abuse@privacyfirst.sh'

inetnum: 194.5.98.0 - 194.5.98.255
remarks: This prefix is assigned to The PRIVACYFIRST Project, which
remarks: operates infrastructure jointly used by various VPN service
remarks: providers. We have a very strong focus on privacy and freedom.
remarks: In case of abuse, we encourage all international law enforcement
remarks: agencies to get in touch with our abuse contact. Due to the fact
remarks: that we keep no logs of user activities and only share data when
remarks: it is legally required under our jurisdiction, it is very unlikely
remarks: for a demand of user information to be successful. Still, that
remarks: should not deter you from reaching out.
netname: PRIVACYFIRST-NOR
country: NO
descr: Sandefjord
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2019-04-26T16:42:54Z
last-modified: 2020-07-14T18:04:10Z
source: RIPE

Intelligence

File Origin
# of uploads :
2
# of downloads :
74
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/29689/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WYG.29895.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Creating a file
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/392466
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 248415 Sample: BL-Copy_pdf.exe Startdate: 21/07/2020 Architecture: WINDOWS Score: 100 40 bornsinner.myq-see.com 2->40 46 Malicious sample detected (through community Yara rule) 2->46 48 Multi AV Scanner detection for dropped file 2->48 50 Sigma detected: Scheduled temp file as task from temp location 2->50 52 9 other signatures 2->52 9 BL-Copy_pdf.exe 11 2->9         started        13 MSBuild.exe 4 2->13         started        signatures3 process4 file5 34 C:\Users\user\AppData\...\oJuuxxsWIJkn.exe, PE32 9->34 dropped 36 C:\Users\user\AppData\Local\...\tmpB60D.tmp, XML 9->36 dropped 38 C:\Users\user\AppData\...\BL-Copy_pdf.exe.log, ASCII 9->38 dropped 54 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 9->54 15 MSBuild.exe 10 9->15         started        20 schtasks.exe 1 9->20         started        22 MSBuild.exe 9->22         started        24 conhost.exe 13->24         started        signatures6 process7 dnsIp8 42 bornsinner.myq-see.com 15->42 32 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 15->32 dropped 44 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->44 26 schtasks.exe 1 15->26         started        28 conhost.exe 20->28         started        file9 signatures10 process11 process12 30 conhost.exe 26->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1583c29f396b51c03866ecbac92dfae57d41c361d8f6f5ae71600a84a4b9033d/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-07-21 06:18:08 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=cwb4fhzznni4aodg5s5mslp24v6udq3b3d3plltrmafijjfzam6q._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
0725fa234dd7f9bdcbcd0eef96c79017200f5c27676e4126a00c6d33e6601a5a
NanoCore
3a81ff29fab2a5f1c63bf3cdef8d233cd509e5edb5dd65da9c045e48abfe3efe
NanoCore
65985974e8e5863fee10f22f30f9e3bc80a0ceca168abfec3431e0753f080b39
NanoCore
7238b10bdd16fb1695fa6732a480d118f7af176174c81a69e1a6f103f955416e
NanoCore
7fc2806d0821e5367c81773db3f59020ca283312b9975ef3ee19c139af0a4d69
NanoCore
b6e6a78efe43a85893d398bdcb56f913b48e5ab649bbac0ea305177ef55a0747
NanoCore
d1bd877b6b748426000286d808fd8a397869e91f2e400aa328a290363b57fa0b
NanoCore
d8a940109eb53d9f23207bea365e2a265ad1b4ba479821085e7f930629532152
NanoCore
e10eb374689e800446850be0977a4911b17f16b190c58f6a2acccfda9fa33ed2
NanoCore
eccb7dad3a4bff889e8f54ab9dd8603443cb62ffba05140d5cdaedb057e1486b
NanoCore
+ 1'198 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/200721-nn7ndaxazj/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
NanoCore
Malware Config
C2 Extraction:
bornsinner.myq-see.com:3941
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1583c29f396b51c03866ecbac92dfae57d41c361d8f6f5ae71600a84a4b9033d

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

gz 64fab27a292c6f49262f33c5af0c3ff80425f82fe464b5f9099f5c0be62e966b

NanoCore

Executable exe 1583c29f396b51c03866ecbac92dfae57d41c361d8f6f5ae71600a84a4b9033d

(this sample)

  
Dropped by
MD5 31dae869095cb9d29bb2877d04b7e91e
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/29689/
  
Dropped by
SHA256 64fab27a292c6f49262f33c5af0c3ff80425f82fe464b5f9099f5c0be62e966b

Comments