MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8bea87933992abf0ab4498cdba996141e3764889d31ccb50c966619f1dbbaaaf. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8bea87933992abf0ab4498cdba996141e3764889d31ccb50c966619f1dbbaaaf
SHA3-384 hash: 3a48b06e500e21c85c40efdec85303c07238ac74a6fb13adac510d9aa2afaafb578a60393123ae04cea8015959bed62e
SHA1 hash: dce614df69e88dbb2de6eec1b26baf5d8fd7e264
MD5 hash: 5a2715f4fa9e20db6138b9e8aeed9ad6
humanhash: maryland-river-ack-west
File name:5a2715f4fa9e20db6138b9e8aeed9ad6.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:39'856 bytes
First seen:2021-07-01 13:56:11 UTC
Last seen:2021-07-01 14:57:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'749 x AgentTesla, 19'653 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 768:oErM8Ni3U0Z3k4TL1O+GflVRfZ2iT4UlTLF07r34hG:9rhNi3UNG1Yrx4eTR0Pd
Threatray 2'118 similar samples on MalwareBazaar
TLSH FA0339ED8AAE49C6E57FF930D7D439020332593E640C856F04A65AC7C843BEAD7E911B
Reporter abuse_ch
Tags:exe NanoCore RAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
191
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5a2715f4fa9e20db6138b9e8aeed9ad6.exe
Verdict:
Malicious activity
Analysis date:
2021-07-01 13:59:08 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/4f73a960-397b-4b2f-b34c-08d3cb7837a4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/169174/
Detection(s):
SecuriteInfo.com.W32.MSIL_Agent.BZW.genEldorado.19187.21272.UNOFFICIAL
Create hunting rule

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.
Malware family:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/968a0acb-72eb-4353-b24b-6672b3723625
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/810593
Signature
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)
Hides threads from debuggers
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 443005 Sample: OvUa10Lb3H.exe Startdate: 01/07/2021 Architecture: WINDOWS Score: 100 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 Multi AV Scanner detection for dropped file 2->64 66 7 other signatures 2->66 7 OvUa10Lb3H.exe 17 4 2->7         started        11 dhcpmon.exe 15 4 2->11         started        process3 dnsIp4 52 kakosidobrosam.gq 104.21.67.197, 443, 49715, 49727 CLOUDFLARENETUS United States 7->52 68 Adds a directory exclusion to Windows Defender 7->68 70 Hides threads from debuggers 7->70 13 OvUa10Lb3H.exe 1 9 7->13         started        18 WerFault.exe 20 9 7->18         started        20 cmd.exe 1 7->20         started        22 powershell.exe 26 7->22         started        24 cmd.exe 11->24         started        26 powershell.exe 11->26         started        28 WerFault.exe 11->28         started        30 2 other processes 11->30 signatures5 process6 dnsIp7 54 79.134.225.87, 1985, 49724, 49725 FINK-TELECOM-SERVICESCH Switzerland 13->54 56 127.0.0.1 unknown unknown 13->56 44 C:\Program Files (x86)\...\dhcpmon.exe, PE32 13->44 dropped 46 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 13->46 dropped 48 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 13->48 dropped 72 Hides that the sample has been downloaded from the Internet (zone.identifier) 13->72 50 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 18->50 dropped 32 conhost.exe 20->32         started        34 timeout.exe 1 20->34         started        36 conhost.exe 22->36         started        38 conhost.exe 24->38         started        40 timeout.exe 24->40         started        42 conhost.exe 26->42         started        58 192.168.2.1 unknown unknown 28->58 file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8bea87933992abf0ab4498cdba996141e3764889d31ccb50c966619f1dbbaaaf/
Threat name:
ByteCode-MSIL.Backdoor.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2021-07-01 12:52:41 UTC
AV detection:
13 of 29 (44.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rpvipezzskv7bk2etdg3vglbihrxmsej2momwugjmzqz6hn3vkxq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
2b8a102443d6ed4c84471a54f058f24f5f55485bba73ebd785fdce294e337110
NanoCore
305bf6557bcc3df14cf33993d14e03fa84a6bd7611a990402fae4522ff098454
NanoCore
3d8811d64e17d5ea06d0edae6163b90b2400d06d9afa60ae689d6fe9232bca86
NanoCore
437c9421ae36bc19198438f86b86a39de0d207449abef097eb9656743823c256
NanoCore
4d01d1b24f4f7487669486becc7ff8b43a126f56ffb3d8fcce8c66b200412475
NanoCore
4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9
NanoCore
5a8b4dc95322eed89a2c77350395f8c1f79394369bebec84703ae285092a37f5
NanoCore
9f96527c9f839559485e89c5c5ff8f95708035fd55c9fac0c2edf3764224d860
NanoCore
9fc2ec9a478ddf812c9687c805f340989dc0af33b48100ec6621e422035ce579
NanoCore
a276b0d2aaf8a132ffbe9ae16763975bcf38fc1e5a6419890712fc3de02b793f
NanoCore
+ 2'108 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/210701-wg4783paae/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Windows security modification
NanoCore
UAC bypass
Windows security bypass
Malware Config
C2 Extraction:
79.134.225.87:1985
127.0.0.1:1985
Unpacked files
SH256 hash:
8bea87933992abf0ab4498cdba996141e3764889d31ccb50c966619f1dbbaaaf
MD5 hash:
5a2715f4fa9e20db6138b9e8aeed9ad6
SHA1 hash:
dce614df69e88dbb2de6eec1b26baf5d8fd7e264
Link:
https://www.unpac.me/results/bebf6bb5-81bc-4f38-8b42-8e6f46b522c2/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/8bea87933992abf0ab4498cdba996141e3764889d31ccb50c966619f1dbbaaaf

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: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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

NanoCore

Executable exe 8bea87933992abf0ab4498cdba996141e3764889d31ccb50c966619f1dbbaaaf

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1414034/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/169174/

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