MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 799a0831a87f80ddced683cf26c082c58c936a1bb868dd0e97552a9f035ba4ee. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 799a0831a87f80ddced683cf26c082c58c936a1bb868dd0e97552a9f035ba4ee
SHA3-384 hash: 94b907c2c59a72074ceca083b0c2dd5294810f7c685e9eb94efacdcf9fffecae3e10b89156d2a4907800f97a19bb1d0c
SHA1 hash: 112314d871226e07180bf2d0a2852120cbc1399f
MD5 hash: 5b3262b61a5eaa3ebe7e8bdc4958fc3f
humanhash: friend-william-july-ink
File name:5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:12'288 bytes
First seen:2021-10-13 17:53:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 192:RylWethV1SLBdCYpy/zFkKt7QqMT0U2/JT0JN7Kae6b4vT:RYWetP1SLuhk6snT0UUKN7Kj
Threatray 3'104 similar samples on MalwareBazaar
TLSH T191421B51A3D45A7BDC769A72BC2755000A34F33ACC565F6F28C9102E9DA33151AA3739
File icon (PE):PE icon
dhash icon 9ee5656565a5a585 (14 x NanoCore, 11 x XpertRAT, 5 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
1
# of downloads :
283
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
Verdict:
Malicious activity
Analysis date:
2021-10-13 17:57:56 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/7404e819-dcc9-420d-bff2-68327c266e44

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/197341/
Detection(s):
SecuriteInfo.com.W32.MSIL_Kryptik.FVA.genEldorado.6116.13639.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a service
Creating a window
Connection attempt to an infection source
Sending a TCP request to an infection source
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Query of malicious DNS domain
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61671d001c2d58ba74051676/reports/cd4693f0-17ed-4d25-a250-1e35d868cb8b/overview
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:
Quasar RAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/47fa2093-7338-45a4-a1eb-e440dc25d24a
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/869950
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
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
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 502379 Sample: LFEs2N6DU4.exe Startdate: 13/10/2021 Architecture: WINDOWS Score: 100 55 cloudhost.myfirewall.org 2->55 63 Found malware configuration 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 Multi AV Scanner detection for submitted file 2->67 69 5 other signatures 2->69 9 LFEs2N6DU4.exe 15 5 2->9         started        14 dhcpmon.exe 14 5 2->14         started        16 dhcpmon.exe 2 2->16         started        18 LFEs2N6DU4.exe 2 2->18         started        signatures3 process4 dnsIp5 61 store2.gofile.io 31.14.69.10, 443, 49743, 49752 LINKER-ASFR Virgin Islands (BRITISH) 9->61 47 C:\Users\user\AppData\...\LFEs2N6DU4.exe, PE32 9->47 dropped 49 C:\Users\...\LFEs2N6DU4.exe:Zone.Identifier, ASCII 9->49 dropped 51 C:\Users\user\AppData\...\LFEs2N6DU4.exe.log, ASCII 9->51 dropped 75 Writes to foreign memory regions 9->75 77 Allocates memory in foreign processes 9->77 79 Injects a PE file into a foreign processes 9->79 20 LFEs2N6DU4.exe 1 12 9->20         started        53 C:\Users\user\AppData\Local\...\dhcpmon.exe, PE32 14->53 dropped 25 dhcpmon.exe 14->25         started        27 dhcpmon.exe 16->27         started        29 LFEs2N6DU4.exe 18->29         started        file6 signatures7 process8 dnsIp9 57 cloudhost.myfirewall.org 91.121.250.249, 49746, 49747, 49748 OVHFR France 20->57 59 192.168.2.1 unknown unknown 20->59 39 C:\Program Files (x86)\...\dhcpmon.exe, PE32 20->39 dropped 41 C:\Users\user\AppData\Roaming\...\run.dat, data 20->41 dropped 43 C:\Users\user\AppData\Local\...\tmpA85B.tmp, XML 20->43 dropped 45 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 20->45 dropped 71 Uses schtasks.exe or at.exe to add and modify task schedules 20->71 73 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->73 31 schtasks.exe 1 20->31         started        33 schtasks.exe 1 20->33         started        file10 signatures11 process12 process13 35 conhost.exe 31->35         started        37 conhost.exe 33->37         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/799a0831a87f80ddced683cf26c082c58c936a1bb868dd0e97552a9f035ba4ee/
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
+ 3'094 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/211013-wgaehsehd7/
Behaviour
Creates scheduled task(s)
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
cloudhost.myfirewall.org:5654
Unpacked files
SH256 hash:
799a0831a87f80ddced683cf26c082c58c936a1bb868dd0e97552a9f035ba4ee
MD5 hash:
5b3262b61a5eaa3ebe7e8bdc4958fc3f
SHA1 hash:
112314d871226e07180bf2d0a2852120cbc1399f
Link:
https://www.unpac.me/results/9b54212d-7671-4e1c-9135-14de9a12da7b/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/799a0831a87f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/799a0831a87f80ddced683cf26c082c58c936a1bb868dd0e97552a9f035ba4ee

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_InTheFuture
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: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 799a0831a87f80ddced683cf26c082c58c936a1bb868dd0e97552a9f035ba4ee

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1649278/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1635441/
Cape
Cape
https://www.capesandbox.com/analysis/197341/

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