MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c1e95a6f558510abc5490b3c48c42b49b999d45ad187691c84d9d06473a16e7a. 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: 9

Intelligence 9 IOCs YARA 5 File information Comments

SHA256 hash:	c1e95a6f558510abc5490b3c48c42b49b999d45ad187691c84d9d06473a16e7a
SHA3-384 hash:	30a085be965ab3dbba89d3d58b5e141568a25767e4f472184db9f57fe187e5a1ab34f823a44056a94c39726ef0e17f81
SHA1 hash:	2a0ef4f08703228ffe99850f5e4c39f6e17903c8
MD5 hash:	36af785975802188e113acbf8f2a65bc
humanhash:	lamp-golf-mississippi-dakota
File name:	u1rC8zA7y9jIy7m.exe
Download:	download sample
Signature	NanoCore Create hunting rule
File size:	496'128 bytes
First seen:	2020-08-14 10:10:19 UTC
Last seen:	2020-08-14 11:01:32 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:3nj/OYxLfCBfPWqO/BcbtXCxPMTaYvktz5VE:CYxjidO/wEWGWk
Threatray	1'090 similar samples on MalwareBazaar
TLSH	5EB4BE3222D85F52E13EABBC9260111003F3695AD337EE5DBFB602AA1D66BD14373716
Reporter	abuse_ch
Tags:	exe NanoCore RAT Yahoo

abuse_ch

Malspam distributing NanoCore:

HELO: sonic309-49.consmr.mail.ne1.yahoo.com
Sending IP: 66.163.184.175
From: Adonai Agencies <adonaiagencies@yahoo.com>
Reply-To: Adonai Agencies <adonaiagencies@yahoo.com>
Subject: NEW QUOTE INQUIRY
Attachment: QUOTE873972101.PDF.rar (contains "u1rC8zA7y9jIy7m.exe")

NanoCore RAT C2:
mail.memorybasket.co.in

Intelligence

File Origin

# of uploads :

# of downloads :

129

Origin country :

n/a

Vendor Threat Intelligence

Detection:

NanoCore

Link:

https://www.capesandbox.com/analysis/45784/

Detection(s):

SecuriteInfo.com.BackDoor.SpyBotNET.25.26541.12253.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

Unauthorized injection to a recently created process

Creating a file

Creating a file in the %AppData% subdirectories

Creating a file in the Program Files subdirectories

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Connection attempt to an infection source

Result

Threat name:

Nanocore

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/429382

Signature

.NET source code contains potential unpacker

Detected Nanocore Rat

Found malware configuration

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)

Protects its processes via BreakOnTermination flag

Sigma detected: NanoCore

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Uses dynamic DNS services

Yara detected AntiVM_3

Yara detected Nanocore RAT

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/c1e95a6f558510abc5490b3c48c42b49b999d45ad187691c84d9d06473a16e7a/

Threat name:

ByteCode-MSIL.Trojan.LokiSteal

Status:

Malicious

First seen:

2020-08-14 10:12:07 UTC

AV detection:

23 of 29 (79.31%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=yhuvu32vquikxrkjbm6errbljg4ztvc22gdwshee3higi45bnz5a._file

Verdict:

malicious

Label(s):

nanocorerat

NanoCore

1aa7a26dc92fbd8b4bb9ddd986a7160525ed218434d15d7bfc13e8b4dc5a7275

NanoCore

2bccd7c0c084c310cc99b76682f6747baebaec683536a1ec3a8210b55daa327a

NanoCore

375426a8a107b6dffc4876f9aa54782cee5f767dba75fee84084490deb399b46

NanoCore

41efc16c24de6ee0b2ef7532958b5413796c18c87729b7c6114e371ab24e5bd0

NanoCore

6ef9a4ba3c11768927a6c30605c75cfcb534d7fc013aaf429c51d83bf06750e7

NanoCore

85f9c52380c96ddf3aa66361640a6a6232a182d5d4437de8a3585fa0d216ebc4

NanoCore

894460163492923a4a19c16f1b31698bbfe8431fea36d3bef84c031f30069c4f

NanoCore

bc7d100965bf9a04f7df2820725b9d3c23621f272b3cface8f78d0142d187493

NanoCore

dd73e7c8d4f3014acf00b5e917cb126e4a25389d30c77549c67d9a20858baad0

NanoCore

+ 1'080 additional samples on MalwareBazaar

Result

Malware family:

nanocore

Score:

10/10

Tags:

evasion trojan keylogger stealer spyware family:nanocore persistence

Link:

https://tria.ge/reports/200814-an8tv7klkn/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Drops file in Program Files directory

Suspicious use of SetThreadContext

Adds Run key to start application

Checks whether UAC is enabled

NanoCore

Malware Config

C2 Extraction:

194.5.97.93:6033
chibuikeubachukwuka.ddns.net:6033

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

Threat name:

Suspicious File

Score:

0.55

Link:

https://yomi.yoroi.company/submissions/c1e95a6f558510abc5490b3c48c42b49b999d45ad187691c84d9d06473a16e7a

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_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/