MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c597485c8789aeb7f4edef9a49fc83a39346ea4d9f31f51b92f27b77ed8af0d. 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: 8c597485c8789aeb7f4edef9a49fc83a39346ea4d9f31f51b92f27b77ed8af0d
SHA3-384 hash: b5e9a9f734a1c8e3f601a20580c1dd000a91392e21bbec80285431dff0e8b7d0c7b73ca5a3eddec867e6baf502b475a3
SHA1 hash: 07f6c0c73a357d14f28aa7d07c51ec223fc50d2b
MD5 hash: 9597df519d147d6aed8b9ee1858650d9
humanhash: uncle-three-oklahoma-alanine
File name:9597df519d147d6aed8b9ee1858650d9.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:792'576 bytes
First seen:2020-08-12 19:14:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ca8a968818883f4b47dacd6943e1ee04 (3 x AgentTesla, 2 x Loki, 1 x Formbook)
ssdeep 12288:v13XOoKnE7J93PUtFiMx56Vnh+23dOEhYkvEPlY2kYqRjwG7vYcJp4:Ze87J98ii6NY+9gNYgqRjwKC
Threatray 2'607 similar samples on MalwareBazaar
TLSH E2F4BF22B3D05933CDA7163D9C0B5774AD39BE11EA28A9862BF51C4C8F396853C392D7
Reporter abuse_ch
Tags:exe NanoCore nVpn RAT


Avatar
abuse_ch
NanoCore RAT C2:
jamalrnukkam58.sytes.net:1865 (185.140.53.181)

Pointing to nVpn:

% Information related to '185.140.53.0 - 185.140.53.255'

% Abuse contact for '185.140.53.0 - 185.140.53.255' is 'abuse@privacyfirst.sh'

inetnum: 185.140.53.0 - 185.140.53.255
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-EU3
country: EU
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2016-10-17T23:24:00Z
last-modified: 2020-07-28T20:56:03Z
source: RIPE

Intelligence

File Origin
# of uploads :
1
# of downloads :
119
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/44504/
Detection(s):
PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

SecuriteInfo.com.BackDoor.SpyBotNET.25.28221.1486.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Creating a file in the %temp% directory
Deleting a recently created file
Sending a UDP request
DNS request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Sending a TCP request to an infection source
Unauthorized injection to a system process
Enabling autorun by creating a file
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/423792
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Contains functionality to detect sleep reduction / modifications
Contains functionality to inject code into remote processes
Creates files in alternative data streams (ADS)
Detected Nanocore Rat
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Drops VBS files to the startup folder
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Queues an APC in another process (thread injection)
Sigma detected: Drops script at startup location
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Keylogger Generic
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 264368 Sample: xuVJzpPqxN.exe Startdate: 13/08/2020 Architecture: WINDOWS Score: 100 84 jamalrnukkam58.sytes.net 2->84 94 Found malware configuration 2->94 96 Malicious sample detected (through community Yara rule) 2->96 98 Sigma detected: Scheduled temp file as task from temp location 2->98 100 8 other signatures 2->100 12 xuVJzpPqxN.exe 2->12         started        15 hjfnldnalkf.exe 2->15         started        17 wscript.exe 1 2->17         started        signatures3 process4 signatures5 112 Contains functionality to inject code into remote processes 12->112 114 Writes to foreign memory regions 12->114 116 Allocates memory in foreign processes 12->116 120 2 other signatures 12->120 19 notepad.exe 5 12->19         started        118 Maps a DLL or memory area into another process 15->118 23 hjfnldnalkf.exe 3 15->23         started        25 hjfnldnalkf.exe 15->25         started        27 hjfnldnalkf.exe 17->27         started        process6 file7 72 C:\Users\user\AppData\...\hjfnldnalkf.exe, PE32 19->72 dropped 74 C:\Users\...\hjfnldnalkf.exe:Zone.Identifier, ASCII 19->74 dropped 76 C:\Users\user\AppData\Roaming\...\web.vbs, ASCII 19->76 dropped 102 Creates files in alternative data streams (ADS) 19->102 104 Drops VBS files to the startup folder 19->104 29 hjfnldnalkf.exe 19->29         started        78 C:\Users\user\AppData\...\hjfnldnalkf.exe.log, ASCII 23->78 dropped 32 hjfnldnalkf.exe 23->32         started        34 hjfnldnalkf.exe 25->34         started        106 Maps a DLL or memory area into another process 27->106 36 hjfnldnalkf.exe 27->36         started        38 hjfnldnalkf.exe 27->38         started        signatures8 process9 signatures10 122 Detected unpacking (changes PE section rights) 29->122 124 Detected unpacking (creates a PE file in dynamic memory) 29->124 126 Detected unpacking (overwrites its own PE header) 29->126 130 2 other signatures 29->130 40 hjfnldnalkf.exe 10 29->40         started        45 hjfnldnalkf.exe 29->45         started        47 hjfnldnalkf.exe 32->47         started        49 hjfnldnalkf.exe 32->49         started        128 Maps a DLL or memory area into another process 34->128 51 hjfnldnalkf.exe 34->51         started        53 hjfnldnalkf.exe 34->53         started        55 hjfnldnalkf.exe 36->55         started        process11 dnsIp12 86 185.140.53.181, 1865, 49732, 49733 DAVID_CRAIGGG Sweden 40->86 88 jamalrnukkam58.sytes.net 185.244.30.149, 1865, 49727, 49728 DAVID_CRAIGGG Netherlands 40->88 90 192.168.2.1 unknown unknown 40->90 80 C:\Users\user\AppData\Roaming\...\run.dat, data 40->80 dropped 82 C:\Users\user\AppData\Local\...\tmp4D45.tmp, XML 40->82 dropped 108 Hides that the sample has been downloaded from the Internet (zone.identifier) 40->108 57 schtasks.exe 1 40->57         started        110 Maps a DLL or memory area into another process 55->110 59 hjfnldnalkf.exe 55->59         started        61 hjfnldnalkf.exe 55->61         started        file13 signatures14 process15 process16 63 conhost.exe 57->63         started        65 hjfnldnalkf.exe 59->65         started        signatures17 92 Maps a DLL or memory area into another process 65->92 68 hjfnldnalkf.exe 65->68         started        70 hjfnldnalkf.exe 65->70         started        process18
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8c597485c8789aeb7f4edef9a49fc83a39346ea4d9f31f51b92f27b77ed8af0d/
Threat name:
Win32.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2020-08-12 19:16:07 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rrmxjboipcnow72o3342jh6ihi4ti3ve3hzr6unzf4t3o7wyv4gq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
hawkeyekeylogger
Create hunting rule
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NanoCore
+ 2'597 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
upx evasion trojan keylogger stealer spyware family:nanocore
Link:
https://tria.ge/reports/200812-k72b8k2mes/
Behaviour
Creates scheduled task(s)
NTFS ADS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Drops startup file
Loads dropped DLL
Executes dropped EXE
UPX packed file
NanoCore
Malware Config
C2 Extraction:
jamalrnukkam58.sytes.net:1865
185.140.53.181:1865
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8c597485c8789aeb7f4edef9a49fc83a39346ea4d9f31f51b92f27b77ed8af0d

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.

Web download

NanoCore

Executable exe 8c597485c8789aeb7f4edef9a49fc83a39346ea4d9f31f51b92f27b77ed8af0d

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/44504/
  
URLhaus
https://urlhaus.abuse.ch/url/412465/
  
Delivery method
Distributed via web download

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