MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1254986674a920f32381a826cef7caf14532b52d5a4f02a5addbde53550d0b1. 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 1 YARA 6 File information Comments

SHA256 hash:	f1254986674a920f32381a826cef7caf14532b52d5a4f02a5addbde53550d0b1
SHA3-384 hash:	952a8c8d9f2e39a16a4e3b0efac451714b823f363fc09ab6bdef402a85cfb11e328590194b4af10272a8e2174d8ba832
SHA1 hash:	4b9e03085435f912cf6fb16c1dff7f8e0c66b26e
MD5 hash:	4dfbf6282d936b288984b5194058eba9
humanhash:	papa-seven-muppet-tennessee
File name:	4dfbf6282d936b288984b5194058eba9.exe
Download:	download sample
Signature	NanoCore Create hunting rule
File size:	884'224 bytes
First seen:	2021-03-30 10:25:31 UTC
Last seen:	2021-03-30 10:47:23 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep	12288:zoPVgDxb9mgtBDU8UUvVLIwrKsoeftrgAl5IUT03rsGcAW4C:zSCCg3U+20KuJgaKU3BG
Threatray	102 similar samples on MalwareBazaar
TLSH	481518A870AE845DEEB46634F5B595821FC929321F52FF3F28E66B002C63779F94E410
Reporter	abuse_ch
Tags:	exe NanoCore RAT

abuse_ch

NanoCore C2:
194.5.98.49:83

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOC	ThreatFox Reference
194.5.98.49:83	https://threatfox.abuse.ch/ioc/5843/

Intelligence

File Origin

# of uploads :

# of downloads :

144

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

4dfbf6282d936b288984b5194058eba9.exe

Verdict:

Malicious activity

Analysis date:

2021-03-30 10:27:27 UTC

Tags:

rat nanocore trojan

Link:

https://app.any.run/tasks/1d4555a2-304c-44b0-a8b2-17ab6fa580f4

Note:

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

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/127957/

Detection(s):

SecuriteInfo.com.Scr.Malcodegdn30.1222.27873.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

Result

Verdict:

SUSPICIOUS

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/658235

Signature

Detected Nanocore Rat

Hides that the sample has been downloaded from the Internet (zone.identifier)

Injects a PE file into a foreign processes

Machine Learning detection for dropped file

Machine Learning detection for sample

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

Yara detected AntiVM3

Yara detected Nanocore RAT

Behaviour

Behavior Graph:

Download SVG

Detection:

nanocore

Link:

https://mwdb.cert.pl/sample/f1254986674a920f32381a826cef7caf14532b52d5a4f02a5addbde53550d0b1/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2021-03-30 10:26:06 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

12 of 48 (25.00%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=6esutbthjkja6mrydkbgz334v4kfgk2s2wspaks23w66knkq2cyq._file

Verdict:

unknown

Result

Malware family:

nanocore

Score:

10/10

Tags:

family:nanocore evasion keylogger spyware stealer trojan

Link:

https://tria.ge/reports/210330-1vhndekske/

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

Checks whether UAC is enabled

NanoCore

Malware Config

C2 Extraction:

194.5.98.49:83
nassiru1144.ddns:83

Unpacked files

SH256 hash:

d436034270fb2d5380e4fcecc1ee6c821a1701aed96045fa13f597da16be08fb

MD5 hash:

00cbf73d8b9f03417a3a32957ec64ed4

SHA1 hash:

b862eff1cf240a5ad5325fd258892e534484a6e8

Link:

https://www.unpac.me/results/ea186e4b-e1a7-4307-83bd-c768c867a138/

SH256 hash:

f1254986674a920f32381a826cef7caf14532b52d5a4f02a5addbde53550d0b1

MD5 hash:

4dfbf6282d936b288984b5194058eba9

SHA1 hash:

4b9e03085435f912cf6fb16c1dff7f8e0c66b26e

Link:

https://www.unpac.me/results/ea186e4b-e1a7-4307-83bd-c768c867a138/

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Nanocore

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/f1254986674a920f32381a826cef7caf14532b52d5a4f02a5addbde53550d0b1

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/