MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 74b44a4a01084396665ec50ef4a57adb40419f0996bc8723e1cfcd2ce975c06f. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 74b44a4a01084396665ec50ef4a57adb40419f0996bc8723e1cfcd2ce975c06f
SHA3-384 hash: 262582481ec0b19ba7c0d822ad3f9979c3ff3b4fb5e654a55f21024735f1842951f8cea75e7472e21cd054af282d2d85
SHA1 hash: 1f767b55612611696631508e16018e12295c0e81
MD5 hash: 4677a6f451382f77c0a1585c0cea03c3
humanhash: burger-alaska-bluebird-yankee
File name:SecuriteInfo.com.Trojan.GenericKD.37013274.28794.30897
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'532'416 bytes
First seen:2021-06-01 13:59:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'647 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 24576:drxWfWGhO9bWpxVQybSNPyU5AvuWXDoHTcTQHwiqvkNYL2hUWjjuFqP6o:daO5MrbADHRc8YzzWv0qy
Threatray 1'987 similar samples on MalwareBazaar
TLSH 8565CFAD725076DEC41BCEB6CA949C74FA60A4B7930BD353A02315DC9A4DA9BCF140F2
Reporter SecuriteInfoCom
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
1
# of downloads :
236
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
LOT_20210526.xlsx
Verdict:
Malicious activity
Analysis date:
2021-06-01 08:17:28 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/b798a4b6-af3c-4796-85f1-6694cdb5ed4d

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/163849/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.37013274.28794.30897.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/795338
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Suspicious Process Start Without DLL
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
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 427739 Sample: SecuriteInfo.com.Trojan.Gen... Startdate: 01/06/2021 Architecture: WINDOWS Score: 100 31 wekeepworking.sytes.net 2->31 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for dropped file 2->43 45 11 other signatures 2->45 8 SecuriteInfo.com.Trojan.GenericKD.37013274.28794.exe 7 2->8         started        signatures3 process4 file5 21 C:\Users\user\AppData\...\yJTmIrTdLO.exe, PE32 8->21 dropped 23 C:\Users\...\yJTmIrTdLO.exe:Zone.Identifier, ASCII 8->23 dropped 25 C:\Users\user\AppData\Local\Temp\tmpFDA.tmp, XML 8->25 dropped 27 SecuriteInfo.com.T...13274.28794.exe.log, ASCII 8->27 dropped 47 Detected unpacking (changes PE section rights) 8->47 49 Detected unpacking (overwrites its own PE header) 8->49 51 Uses schtasks.exe or at.exe to add and modify task schedules 8->51 53 3 other signatures 8->53 12 RegSvcs.exe 8 8->12         started        17 schtasks.exe 1 8->17         started        signatures6 process7 dnsIp8 33 wekeepworking.sytes.net 79.134.225.90, 1144, 49713, 49722 FINK-TELECOM-SERVICESCH Switzerland 12->33 35 wekeepworking12.sytes.net 12->35 37 192.168.2.1 unknown unknown 12->37 29 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 12->29 dropped 55 Hides that the sample has been downloaded from the Internet (zone.identifier) 12->55 19 conhost.exe 17->19         started        file9 signatures10 process11
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/74b44a4a01084396665ec50ef4a57adb40419f0996bc8723e1cfcd2ce975c06f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-05-31 19:49:23 UTC
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=os2eusqbbbbzmzs6yuhpjjl23naedhyjs26ioi7bz7gsz2lvybxq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
2b8a102443d6ed4c84471a54f058f24f5f55485bba73ebd785fdce294e337110
NanoCore
305bf6557bcc3df14cf33993d14e03fa84a6bd7611a990402fae4522ff098454
NanoCore
3d8811d64e17d5ea06d0edae6163b90b2400d06d9afa60ae689d6fe9232bca86
NanoCore
4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9
NanoCore
5a8b4dc95322eed89a2c77350395f8c1f79394369bebec84703ae285092a37f5
NanoCore
9f96527c9f839559485e89c5c5ff8f95708035fd55c9fac0c2edf3764224d860
NanoCore
9fc2ec9a478ddf812c9687c805f340989dc0af33b48100ec6621e422035ce579
NanoCore
a1fba3b877a576f41850e0696a9ae45e4419de786d1fb2ed164b2c3c0aa97917
NanoCore
cce5d9e4fd5ca9142510f3b21d0a73906171e90a815520985687dde13b6e643d
NanoCore
e11f59ce9dae9fcff7ff4c8d3d119dd663a1918d084f8cda7b30c474cd141642
NanoCore
+ 1'977 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210601-3feck51j6x/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
NanoCore
Malware Config
C2 Extraction:
wekeepworking.sytes.net:1144
wekeepworking12.sytes.net:1144
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/74b44a4a01084396665ec50ef4a57adb40419f0996bc8723e1cfcd2ce975c06f

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: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 74b44a4a01084396665ec50ef4a57adb40419f0996bc8723e1cfcd2ce975c06f

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/163849/
  
URLhaus
https://urlhaus.abuse.ch/url/1311355/
  
Delivery method
Distributed via web download

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