MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ec931494834c3ba43ce8bd08f7d8caab6648dd832ee1d2973ee3a746c71d1a9a. 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: 13
| SHA256 hash: | ec931494834c3ba43ce8bd08f7d8caab6648dd832ee1d2973ee3a746c71d1a9a |
|---|---|
| SHA3-384 hash: | 0da0f1f6e41509c88b68e594adcfb7ae61867ab54008e389e62137d692c4f078c80aa2816ade77f1ad4357be226210a1 |
| SHA1 hash: | d77a6693ae835f2aa7e17b253a5f6dd81eda79a9 |
| MD5 hash: | bad63cf4495a75d5fdc0bb8bf0653843 |
| humanhash: | pip-dakota-wyoming-iowa |
| File name: | 168__DG54535TM_Metallwarenfabrik.xlsx |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 1'907'359 bytes |
| First seen: | 2023-12-22 17:41:48 UTC |
| Last seen: | Never |
| File type: |  xlsx |
| MIME type: | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| ssdeep | 49152:IyvoiPSh2stz7ODdl8VnzQFHwN9Etog2hxtbX6F4pX:IywiPScgzqsnMuEexpu4pX |
| TLSH | T14A9533F61EF15BE8FD51ACBE5B015F71CB1DFCB6180F49512C92B1283E97A1812883A9 |
| TrID | 60.1% (.XLSX) Excel Microsoft Office Open XML Format document (34000/1/7) 30.9% (.ZIP) Open Packaging Conventions container (17500/1/4) 7.0% (.ZIP) ZIP compressed archive (4000/1) 1.7% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1) |
| Reporter |  smica83 |
| Tags: | CVE-2017-11882 HUN NanoCore xlsx |
Office OLE Information
This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.
OLE dump
MalwareBazaar was able to identify 3 sections in this file using oledump:
| Section ID | Section size | Section name |
|---|---|---|
| A1 | 2153013 bytes | OLE10nAtiVe |
| A2 | 0 bytes | BPQE |
Intelligence
File Origin
# of uploads :
1
# of downloads :
1'998
Origin country :
HUVendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Embedding Objects
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
embedequation exploit
Verdict:
Malicious
Labled as:
CVE-2017-11882
Label:
Malicious
Suspicious Score:
9.8/10
Score Malicious:
99%
Score Benign:
1%
Result
Verdict:
MALICIOUS
Link:
Result
Threat name:
Nanocore
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains process injector
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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
Office equation editor drops PE file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: NanoCore
Snort IDS alert for network traffic
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Detection:
nanocore
Threat name:
Document-Office.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2023-12-22 12:24:12 UTC
File Type:
Document
Extracted files:
16
AV detection:
26 of 37 (70.27%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
nanocore
Score:
10/10
Tags:
family:nanocore keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
NanoCore
Malware Config
C2 Extraction:
globron.duckdns.org:9192
Malware family:
NanoCore
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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