MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a84f4246abaf3e5192825ec251d2a5477f237437b267a9db59373508d79b7599. 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
| SHA256 hash: | a84f4246abaf3e5192825ec251d2a5477f237437b267a9db59373508d79b7599 |
|---|---|
| SHA3-384 hash: | 4447513e65d9ea05b3cb560dd5d6cd4e703b6a1ad98e241f6f5f77ade3a649ce72ff092556a82ab92740852f56ce9f52 |
| SHA1 hash: | 0f2631ef56209e5d76d41d10630970dd20ccca95 |
| MD5 hash: | 26d0904528843324f3ea49ff05e530e2 |
| humanhash: | mexico-victor-red-whiskey |
| File name: | 26d0904528843324f3ea49ff05e530e2.exe |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 528'299 bytes |
| First seen: | 2021-08-19 13:31:54 UTC |
| Last seen: | 2021-08-19 16:57:30 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 4f489b335db6d5ec89d1f80710469941 (2 x Formbook, 2 x Loki, 1 x AZORult) |
| ssdeep | 12288:PlRQkuQgLtflrcmM3nDEih1UJkdQKC8dGJ2ahXLRYXrhmmB3nAGC1xnHVLLuVF:PlRQkuQgaEih1YkdQ4dGJ2ahXLRYXrw2 |
| Threatray | 3'139 similar samples on MalwareBazaar |
| TLSH | T102B4C010BA80C033C673383047B4E5B15E6E6C312D699E9B67D839395F70691EA35B6F |
| Reporter |  abuse_ch |
| Tags: | exe NanoCore RAT |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 79.134.225.29:9284 | https://threatfox.abuse.ch/ioc/192304/ |
Intelligence
File Origin
# of uploads :
3
# of downloads :
143
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
express nouvelle promotion.xlsx
Verdict:
Malicious activity
Analysis date:
2021-08-19 13:03:30 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 trojan rat nanocore loader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
NanoCore
Result
Verdict:
Malware
Maliciousness:
Behaviour
Launching a process
Creating a window
Creating a file in the %AppData% subdirectories
Sending a custom TCP request
Connection attempt to an infection source
Using the Windows Management Instrumentation requests
Sending a UDP request
Query of malicious DNS domain
Sending a TCP request to an infection source
Unauthorized injection to a system process
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:
Generic Malware
Verdict:
Malicious
Result
Threat name:
Nanocore
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Writes to foreign memory regions
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.NanoBot
Status:
Malicious
First seen:
2021-08-19 13:32:11 UTC
AV detection:
15 of 28 (53.57%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
nanocorerat
Similar samples:
+ 3'129 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
1/10
Tags:
n/a
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Unpacked files
SH256 hash:
6df8d36a1af6f2958759b247dc1130044d3179ee203a1e6aec8ea790b1ba25d2
MD5 hash:
55486f97c58e3b20b9d2ac7788229468
SHA1 hash:
b14974cda5e95e4ce0fb02a0afd39ac5fbc8e512
Detections:
win_nanocore_w0
SH256 hash:
a84f4246abaf3e5192825ec251d2a5477f237437b267a9db59373508d79b7599
MD5 hash:
26d0904528843324f3ea49ff05e530e2
SHA1 hash:
0f2631ef56209e5d76d41d10630970dd20ccca95
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Nanocore
Score:
1.00
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: | ach_NanoCore |
|---|---|
| Author: | abuse.ch |
| Rule name: | Nanocore |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Nanocore in memory |
| Reference: | internal research |
| Rule name: | nanocore_rat |
|---|---|
| Author: | jeFF0Falltrades |
| Rule name: | Nanocore_RAT_Feb18_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Nanocore RAT |
| Reference: | Internal Research - T2T |
| Rule name: | Nanocore_RAT_Gen_2 |
|---|---|
| Author: | Florian Roth |
| Description: | Detetcs the Nanocore RAT |
| Reference: | https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/ |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | win_nanocore_w0 |
|---|---|
| Author: | Kevin Breen <kevin@techanarchy.net> |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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