MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e8f18f6487f71106ffa08913661408ac8a473895c4ff5f880c596fce5760b1a1. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e8f18f6487f71106ffa08913661408ac8a473895c4ff5f880c596fce5760b1a1
SHA3-384 hash: 6e251ca7ce5df64f78a8d35b78cb8d634ec49063797efd0c29a2ab5dc4de83f81417dfb29376ae4be4620477548f9e6e
SHA1 hash: f6782e594f11f7ba6bd61ab78fba5db15459bbd7
MD5 hash: afcede840d453cac15261a5407ef93fe
humanhash: muppet-beer-mirror-stairway
File name:Paid Unpaid Invoice_249.doc
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'605'960 bytes
First seen:2021-05-07 07:27:36 UTC
Last seen:2021-05-07 08:01:38 UTC
File type:Word file doc
MIME type:text/rtf
ssdeep 12288:jsdENjr4B5CITO/WROLgcba/8maJXM8WAb6C7v5UP1:4dWnK596WRaS8mmc6bH7BUt
TLSH 097568F0AD01D4C1F57E5B6AF2FD3A48A1343217EBC94A4A00E7E5651EF6A11B90ECC9
Reporter abuse_ch
Tags:doc NanoCore

Intelligence

File Origin
# of uploads :
2
# of downloads :
149
Origin country :
n/a
Vendor Threat Intelligence
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

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
DNS request
Sending a custom TCP request by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/e8f18f6487f71106ffa08913661408ac8a473895c4ff5f880c596fce5760b1a1/results/dashboard
Result
Verdict:
MALICIOUS
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/720263
Signature
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: EQNEDT32.EXE connecting to internet
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e8f18f6487f71106ffa08913661408ac8a473895c4ff5f880c596fce5760b1a1/
Threat name:
Document-RTF.Exploit.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2021-05-07 07:13:35 UTC
AV detection:
12 of 47 (25.53%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5dyy6zeh64iqn75arejwmfaivsfeooevyt7v7camlfx44v3awgqq._file
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210507-yf7maefpr2/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
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 Windows directory
Suspicious use of SetThreadContext
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
NanoCore
Malware Config
C2 Extraction:
79.134.225.52:5540
wealthybillionaire.ddns.net:5540
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/e8f18f6487f71106ffa08913661408ac8a473895c4ff5f880c596fce5760b1a1

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:INDICATOR_RTF_EXPLOIT_CVE_2017_11882_1
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents potentially exploiting CVE-2017-11882
Rule name:INDICATOR_RTF_EXPLOIT_CVE_2017_11882_2
Create hunting rule
Author:ditekSHen
Description:detects an obfuscated RTF variant documents potentially exploiting 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.
Rule name:IPPort_combo_mem
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:UAC_bypass_bin_mem
Create hunting rule
Author:James_inthe_box
Description:UAC bypass in files like avemaria

File information

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

Comments