MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 802c56b6f190b1e7bb65ab1b6c82cfaa62724fe1cb4fa0c0c4acd1061064f952. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 802c56b6f190b1e7bb65ab1b6c82cfaa62724fe1cb4fa0c0c4acd1061064f952
SHA3-384 hash: 9176fae8d2cfc0557c3143284e412179fb32a915c72bc425982427fe1750e5809fcf81312337165a2c65d63d99224aa5
SHA1 hash: 35a9bafb02a4ae22df4fd76d4da2ae8d6e3868d1
MD5 hash: 70835af508eabf02ab3e551d360651d1
humanhash: lithium-uncle-harry-hydrogen
File name:Specification lista.doc
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'648'576 bytes
First seen:2021-02-03 14:26:07 UTC
Last seen:Never
File type:Word file doc
MIME type:text/rtf
ssdeep 24576:JmC03a7DgZCIRGcZahDk4lWNdJkq4uJ/xm4rwkPuQfR0qWW8Ozax0zzUFUmNvtdf:/
TLSH 8B75AFB876047DE6266F536BCA96ADDD13B6172399CBA4CC8068B7C305A3375FE02C05
Reporter abuse_ch
Tags:doc NanoCore


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: terramarlogistics.com
Sending IP: 46.183.220.35
From: COSMOIU Daniela <daniela.cosmoiu@aspaplast.ro>
Subject: Enquiry
Attachment: Specification lista.doc

Intelligence

File Origin
# of uploads :
1
# of downloads :
129
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Specification lista.doc
Verdict:
Malicious activity
Analysis date:
2021-02-03 14:28:20 UTC
Tags:
exploit CVE-2017-11882 rat nanocore loader
Link:
https://app.any.run/tasks/7add2bf1-c269-45ce-ac7f-ad8a8ca66941

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
Detection(s):
Sanesecurity.Malware.27301.RtfHeur.BadVer.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.FakeRTF-2.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.2017-0199.Obfus.170830.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.2017-0199.Obfus.171711.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
DNS request
Creating a file in the %AppData% directory
Running batch commands
Creating a process with a hidden window
Sending an HTTP GET request
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/802c56b6f190b1e7bb65ab1b6c82cfaa62724fe1cb4fa0c0c4acd1061064f952/results/dashboard
Result
Verdict:
MALICIOUS
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/597911
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to hide a thread from the debugger
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Office equation editor drops PE file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Sigma detected: Droppers Exploiting CVE-2017-11882
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 347992 Sample: Specification lista.doc Startdate: 03/02/2021 Architecture: WINDOWS Score: 100 74 wazzy113.ddns.net 2->74 80 Found malware configuration 2->80 82 Malicious sample detected (through community Yara rule) 2->82 84 Antivirus detection for URL or domain 2->84 86 13 other signatures 2->86 9 EQNEDT32.EXE 1 2->9         started        14 taskeng.exe 1 2->14         started        16 smtpsvc.exe 2->16         started        18 WINWORD.EXE 291 27 2->18         started        signatures3 process4 dnsIp5 78 sfghfsfjskdjkdfbvndcnfjskaklwrrfw.ydns.eu 84.38.135.136, 49167, 80 DATACLUBLV Latvia 9->78 72 C:\Users\user\AppData\Roaming\AJG.exe, PE32 9->72 dropped 98 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 9->98 20 AJG.exe 1 9->20         started        23 AJG.exe 1 14->23         started        25 smtpsvc.exe 1 14->25         started        100 Hides threads from debuggers 16->100 27 cmd.exe 16->27         started        29 smtpsvc.exe 16->29         started        31 smtpsvc.exe 16->31         started        33 smtpsvc.exe 16->33         started        file6 signatures7 process8 signatures9 88 Machine Learning detection for dropped file 20->88 90 Hides threads from debuggers 20->90 92 Injects a PE file into a foreign processes 20->92 94 Contains functionality to hide a thread from the debugger 20->94 35 AJG.exe 1 9 20->35         started        40 cmd.exe 20->40         started        42 cmd.exe 23->42         started        44 AJG.exe 23->44         started        46 cmd.exe 25->46         started        48 smtpsvc.exe 25->48         started        50 smtpsvc.exe 25->50         started        54 9 other processes 25->54 52 timeout.exe 27->52         started        process10 dnsIp11 76 wazzy113.ddns.net 105.112.50.235, 2420 VNL1-ASNG Nigeria 35->76 66 C:\Program Files (x86)\...\smtpsvc.exe, PE32 35->66 dropped 68 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 35->68 dropped 70 C:\Users\user\AppData\Local\...\tmpDBDF.tmp, XML 35->70 dropped 96 Hides that the sample has been downloaded from the Internet (zone.identifier) 35->96 56 schtasks.exe 35->56         started        58 schtasks.exe 35->58         started        60 timeout.exe 40->60         started        62 timeout.exe 42->62         started        64 timeout.exe 46->64         started        file12 signatures13 process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/802c56b6f190b1e7bb65ab1b6c82cfaa62724fe1cb4fa0c0c4acd1061064f952/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2021-02-03 14:27:06 UTC
AV detection:
16 of 45 (35.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qawfnnxrscy6po3fvmnwzawpvjrhet7bznh2bqgevtiqmede7fja._file
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence ransomware spyware stealer trojan
Link:
https://tria.ge/reports/210203-kgmy8dxdte/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Delays execution with timeout.exe
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in Program Files directory
Drops file in Windows directory
Enumerates physical storage devices
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Loads dropped DLL
Blocklisted process makes network request
Executes dropped EXE
NanoCore
Malware Config
C2 Extraction:
wazzy113.ddns.net:2420
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/802c56b6f190b1e7bb65ab1b6c82cfaa62724fe1cb4fa0c0c4acd1061064f952

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_RTF_EXPLOIT_CVE_2017_11882_4
Create hunting rule
Author:ditekSHen
Description:detects RTF variant documents potentially exploiting CVE-2018-0802 or CVE-2017-11882
Rule name:INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.

File information

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

Malspam

NanoCore

Word file doc 802c56b6f190b1e7bb65ab1b6c82cfaa62724fe1cb4fa0c0c4acd1061064f952

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments