MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 82204b8b465e6be8d42e5b715ed236e7b445d3e6c6ce9b4e9cfbab2141d3635a. 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: 10


Intelligence 10 IOCs 1 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 82204b8b465e6be8d42e5b715ed236e7b445d3e6c6ce9b4e9cfbab2141d3635a
SHA3-384 hash: d7dc1d90680902b5e17545aa39a4e1962c45dcc116401ef57a30d3b90bf774e9783f7d902491024882b49a2c4ff613f0
SHA1 hash: 15fa821a4be76932409e2089889f245327029257
MD5 hash: 26b220c8bf3394e1aa9ffafe16ce2a7d
humanhash: wolfram-mississippi-bluebird-fish
File name:OsGh7bK1e2d7RD0.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'018'368 bytes
First seen:2021-05-02 22:25:12 UTC
Last seen:2021-05-02 23:01:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'604 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:4/olVTpxcrXN9ziq+WYTlYg2rvC/RN3yJnuznl5LuFAzAPHthAOpV/IM87niM:DNMr32q+WYTug2r6mJuOyCHtlpJ8Di
Threatray 1'821 similar samples on MalwareBazaar
TLSH 0125BD773A188B10E2B847779884E23447E1EC35E361DA593CFA8D537C89A5DCAE11CE
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
203.159.80.19:8090

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
203.159.80.19:8090 https://threatfox.abuse.ch/ioc/28056/

Intelligence

File Origin
# of uploads :
3
# of downloads :
135
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/147970/
Detection(s):
SecuriteInfo.com.Scr.Malcodegdn30.25579.6531.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/706619
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 402230 Sample: OsGh7bK1e2d7RD0.exe Startdate: 03/05/2021 Architecture: WINDOWS Score: 100 76 chi.hopto.org 2->76 80 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->80 82 Found malware configuration 2->82 84 Malicious sample detected (through community Yara rule) 2->84 86 12 other signatures 2->86 9 OsGh7bK1e2d7RD0.exe 7 2->9         started        13 OsGh7bK1e2d7RD0.exe 2->13         started        15 dhcpmon.exe 2->15         started        17 dhcpmon.exe 2->17         started        signatures3 process4 file5 68 C:\Users\user\AppData\Roaming\zGohAtF.exe, PE32 9->68 dropped 70 C:\Users\user\...\zGohAtF.exe:Zone.Identifier, ASCII 9->70 dropped 72 C:\Users\user\AppData\Local\...\tmp6752.tmp, XML 9->72 dropped 74 C:\Users\user\...\OsGh7bK1e2d7RD0.exe.log, ASCII 9->74 dropped 90 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 9->90 92 Uses schtasks.exe or at.exe to add and modify task schedules 9->92 94 Adds a directory exclusion to Windows Defender 9->94 19 OsGh7bK1e2d7RD0.exe 1 15 9->19         started        24 powershell.exe 24 9->24         started        26 powershell.exe 22 9->26         started        38 2 other processes 9->38 96 Injects a PE file into a foreign processes 13->96 28 powershell.exe 13->28         started        30 schtasks.exe 13->30         started        32 powershell.exe 13->32         started        34 OsGh7bK1e2d7RD0.exe 13->34         started        36 powershell.exe 15->36         started        signatures6 process7 dnsIp8 78 chi.hopto.org 203.159.80.19, 49715, 49718, 49720 LOVESERVERSGB Netherlands 19->78 62 C:\Program Files (x86)\...\dhcpmon.exe, PE32 19->62 dropped 64 C:\Users\user\AppData\Roaming\...\run.dat, data 19->64 dropped 66 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 19->66 dropped 88 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->88 40 schtasks.exe 19->40         started        42 schtasks.exe 19->42         started        44 conhost.exe 24->44         started        46 conhost.exe 26->46         started        48 conhost.exe 28->48         started        50 conhost.exe 30->50         started        52 conhost.exe 32->52         started        54 conhost.exe 36->54         started        56 2 other processes 38->56 file9 signatures10 process11 process12 58 conhost.exe 40->58         started        60 conhost.exe 42->60         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/82204b8b465e6be8d42e5b715ed236e7b445d3e6c6ce9b4e9cfbab2141d3635a/
Threat name:
ByteCode-MSIL.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2021-05-02 21:20:45 UTC
AV detection:
12 of 29 (41.38%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qiqexc2glzv6rvbolnyv5urw462elu7gy3hjwtu47ovscqotmnna._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9
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cce5d9e4fd5ca9142510f3b21d0a73906171e90a815520985687dde13b6e643d
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e11f59ce9dae9fcff7ff4c8d3d119dd663a1918d084f8cda7b30c474cd141642
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e29e9d9beb5ce8187decf038cdc0b1d3102b4cfe43715a3b4f934098a943ebed
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e9c3fc00ddb08ef196d05b56ce0c83c04381de42e8777e902e3e9c7afe4a9f11
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f29b0b35d584de9410f3ffe75e8e4dbc6d90ecbc6f2c4d9382d8faf33e88d80b
NanoCore
+ 1'811 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/210502-rq82nnpg46/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
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:
:8090
chi.hopto.org:8090
Unpacked files
SH256 hash:
bdf79e57b5574f9bafb56f6d0592f5ee429df7eb0ad536fbdb4f2956aae36f87
MD5 hash:
826b29e2a141b055a5491c9d7dc6eea7
SHA1 hash:
af4201362b8603bf7e4b6e2ead1cfb610dd7c0a9
Link:
https://www.unpac.me/results/55384bae-03b8-41e3-99de-107b8b242782/
SH256 hash:
82204b8b465e6be8d42e5b715ed236e7b445d3e6c6ce9b4e9cfbab2141d3635a
MD5 hash:
26b220c8bf3394e1aa9ffafe16ce2a7d
SHA1 hash:
15fa821a4be76932409e2089889f245327029257
Link:
https://www.unpac.me/results/55384bae-03b8-41e3-99de-107b8b242782/
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/82204b8b465e6be8d42e5b715ed236e7b445d3e6c6ce9b4e9cfbab2141d3635a

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:Nanocore
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:nanocore_rat
Create hunting rule
Author:jeFF0Falltrades
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.

Cape
Cape
https://www.capesandbox.com/analysis/147970/

Comments