MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f605ba8fe94eb367829b61cd05eb5b07f4702b55f2a0faf51589cb46dd6f89a9. 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 YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f605ba8fe94eb367829b61cd05eb5b07f4702b55f2a0faf51589cb46dd6f89a9
SHA3-384 hash: 4447885bd7e74e8b51f0cbf3020d9f01a3bbace3deb0ec6e4108b54e61bf2515500ddd7bf42888f79870b8163fd918a1
SHA1 hash: 37bcd26dcd35f9dd16bd8aff7cad425f3898309c
MD5 hash: d2eaaa542a2968b2a9ebe288166779e8
humanhash: quebec-april-oregon-march
File name:d2eaaa542a2968b2a9ebe288166779e8.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:65'024 bytes
First seen:2021-10-19 14:26:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 768:7KpPFoHQ5H2YScYeFevyJrkcvPhOS4/Vi3xnehErtX+GsM4:7Ed5HJScYe+QzPhOvVihneW9+N
Threatray 3'144 similar samples on MalwareBazaar
TLSH T14353AE3A6BE4C5E9C719E475E043F321132B6EA5DB50441F23A07ECF2CB72858AEE591
File icon (PE):PE icon
dhash icon 71f0c08888c0e070 (9 x SnakeKeylogger, 9 x AgentTesla, 8 x AsyncRAT)
Reporter abuse_ch
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
1
# of downloads :
202
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/198572/
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:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/616ed5bc9a5a1e91c5c69e38/reports/133996cf-6a4e-41ca-8634-af609dde6c19/overview
Result
Verdict:
MALICIOUS
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:
Avalon Stealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/910a1b06-9563-4c31-9e7c-aa98c904f596
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/873214
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Detected Nanocore Rat
Hides that the sample has been downloaded from the Internet (zone.identifier)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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)
Multi AV Scanner detection for dropped file
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 signatures2 2 Behavior Graph ID: 505653 Sample: TB3UeMsBFe.exe Startdate: 19/10/2021 Architecture: WINDOWS Score: 100 60 Malicious sample detected (through community Yara rule) 2->60 62 Multi AV Scanner detection for dropped file 2->62 64 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->64 66 7 other signatures 2->66 8 TB3UeMsBFe.exe 15 5 2->8         started        13 dhcpmon.exe 5 2->13         started        15 dhcpmon.exe 14 2 2->15         started        17 TB3UeMsBFe.exe 2 2->17         started        process3 dnsIp4 56 store2.gofile.io 31.14.69.10, 443, 49752, 49760 LINKER-ASFR Virgin Islands (BRITISH) 8->56 58 192.168.2.1 unknown unknown 8->58 44 C:\Users\user\AppData\...\TB3UeMsBFe.exe, PE32 8->44 dropped 46 C:\Users\...\TB3UeMsBFe.exe:Zone.Identifier, ASCII 8->46 dropped 48 C:\Users\user\AppData\...\TB3UeMsBFe.exe.log, ASCII 8->48 dropped 76 Writes to foreign memory regions 8->76 78 Allocates memory in foreign processes 8->78 80 Injects a PE file into a foreign processes 8->80 19 TB3UeMsBFe.exe 1 12 8->19         started        50 C:\Users\user\AppData\Local\...\dhcpmon.exe, PE32 13->50 dropped 52 C:\Users\user\...\dhcpmon.exe:Zone.Identifier, ASCII 13->52 dropped 24 dhcpmon.exe 13->24         started        26 TB3UeMsBFe.exe 17->26         started        file5 signatures6 process7 dnsIp8 54 cloudhost.myfirewall.org 212.192.241.159, 5654 RAPMSB-ASRU Russian Federation 19->54 36 C:\Program Files (x86)\...\dhcpmon.exe, PE32 19->36 dropped 38 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 19->38 dropped 40 C:\Users\user\AppData\Local\...\tmpD298.tmp, XML 19->40 dropped 42 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 19->42 dropped 68 Multi AV Scanner detection for dropped file 19->68 70 Machine Learning detection for dropped file 19->70 72 Uses schtasks.exe or at.exe to add and modify task schedules 19->72 74 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->74 28 schtasks.exe 1 19->28         started        30 schtasks.exe 1 19->30         started        file9 signatures10 process11 process12 32 conhost.exe 28->32         started        34 conhost.exe 30->34         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f605ba8fe94eb367829b61cd05eb5b07f4702b55f2a0faf51589cb46dd6f89a9/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-19 14:27:07 UTC
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
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
+ 3'134 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/211019-rseq6agac2/
Behaviour
Creates scheduled task(s)
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:
f605ba8fe94eb367829b61cd05eb5b07f4702b55f2a0faf51589cb46dd6f89a9
MD5 hash:
d2eaaa542a2968b2a9ebe288166779e8
SHA1 hash:
37bcd26dcd35f9dd16bd8aff7cad425f3898309c
Link:
https://www.unpac.me/results/57381434-3026-46c5-90d9-0285b056085c/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/f605ba8fe94e/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/f605ba8fe94eb367829b61cd05eb5b07f4702b55f2a0faf51589cb46dd6f89a9

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 f605ba8fe94eb367829b61cd05eb5b07f4702b55f2a0faf51589cb46dd6f89a9

(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/198572/

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