MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d817b262e1a6608dbb37b9d071406c14b4e31d86cb38adbcfe8197399b0263aa. 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 6 File information Comments

SHA256 hash:	d817b262e1a6608dbb37b9d071406c14b4e31d86cb38adbcfe8197399b0263aa
SHA3-384 hash:	315f53512083ef1429df4e7dc24c3ca6696ca55edfbec6ad7d69ff5b84b958d2e700aefc0116c75d8eff18e8fffd462a
SHA1 hash:	f73fac1668091f15a6fdf45366be808a9e873717
MD5 hash:	bd0d18125966f176e6ade8488bf1972d
humanhash:	quebec-paris-cup-maine
File name:	bd0d18125966f176e6ade8488bf1972d.exe
Download:	download sample
Signature	NanoCore Create hunting rule
File size:	1'465'344 bytes
First seen:	2021-04-20 12:08:08 UTC
Last seen:	2021-04-20 14:44:51 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep	24576:C+KROBOobXaRRRRR544rWKvZ4Cozv/cBKwC2yslhEGhuHXn:KE3bXaRRRRRGkvZxoD/cBKwdBzEGhuHX
Threatray	1'765 similar samples on MalwareBazaar
TLSH	7165F1217FD4CF15D2BA4B7848B8922493F8AC51CA6BC60DFE6134DC9EB0BC95E52253
Reporter	abuse_ch
Tags:	exe NanoCore RAT

Intelligence

File Origin

# of uploads :

# of downloads :

117

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

RFQ180584.xlsx

Verdict:

Malicious activity

Analysis date:

2021-04-20 11:28:27 UTC

Tags:

encrypted exploit CVE-2017-11882 loader covid19 rat nanocore

Link:

https://app.any.run/tasks/1514b0e9-c335-44fc-9cbd-6e82e9d119e5

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

NanoCore

Link:

https://www.capesandbox.com/analysis/139623/

Detection(s):

SecuriteInfo.com.Trojan.PackedNET.672.223.20943.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a UDP request

Creating a window

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

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/688986

Signature

Allocates memory in foreign processes

C2 URLs / IPs found in malware configuration

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 dropped file

Multi AV Scanner detection for submitted file

Sigma detected: NanoCore

Sigma detected: Scheduled temp file as task from temp location

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

Detection:

nanocore

Link:

https://mwdb.cert.pl/sample/d817b262e1a6608dbb37b9d071406c14b4e31d86cb38adbcfe8197399b0263aa/

Gathering data

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=3al3eyxbuzqi3ozxxhihcqdmcs2oghmgzm4k3ph6qglttgycmova._file

Verdict:

malicious

Label(s):

nanocorerat

NanoCore

224d22f8d4aef39961b2c0c2bab7c06b97636a7027932e573e338cbb69aedcfd

NanoCore

4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9

NanoCore

8551c05301b50a17763637cca7f291a6b779c82f16275f734e793f6a0e7e1a17

NanoCore

be86e9fd2d5913526b7cea3bec1ad8c84acea8cab73ea78414e6317565f3079b

NanoCore

cce5d9e4fd5ca9142510f3b21d0a73906171e90a815520985687dde13b6e643d

NanoCore

e11f59ce9dae9fcff7ff4c8d3d119dd663a1918d084f8cda7b30c474cd141642

NanoCore

e29e9d9beb5ce8187decf038cdc0b1d3102b4cfe43715a3b4f934098a943ebed

NanoCore

e9c3fc00ddb08ef196d05b56ce0c83c04381de42e8777e902e3e9c7afe4a9f11

NanoCore

f29b0b35d584de9410f3ffe75e8e4dbc6d90ecbc6f2c4d9382d8faf33e88d80b

NanoCore

+ 1'755 additional samples on MalwareBazaar

Result

Malware family:

nanocore

Score:

10/10

Tags:

family:nanocore keylogger spyware stealer trojan

Link:

https://tria.ge/reports/210420-tgj6f4mlej/

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:

79.134.225.50:83
nassiru1166.webhop.me:83

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/d817b262e1a6608dbb37b9d071406c14b4e31d86cb38adbcfe8197399b0263aa

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 Create hunting rule
Author:	abuse.ch

Rule name:	Nanocore Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Nanocore in memory
Reference:	internal research

Rule name:	nanocore_rat Create hunting rule
Author:	jeFF0Falltrades

Rule name:	Nanocore_RAT_Feb18_1 Create hunting rule
Author:	Florian Roth
Description:	Detects Nanocore RAT
Reference:	Internal Research - T2T

Rule name:	Nanocore_RAT_Gen_2 Create hunting rule
Author:	Florian Roth
Description:	Detetcs the Nanocore RAT
Reference:	https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/