MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e6b0dd81d55376a0d817800218cb06cfa6aa169ae337e4f1ba5c3b29bc0251d8. 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: 15

Intelligence 15 IOCs 1 YARA 2 File information Comments

SHA256 hash:	e6b0dd81d55376a0d817800218cb06cfa6aa169ae337e4f1ba5c3b29bc0251d8
SHA3-384 hash:	37ad849c30855373d91be069b224df3ea5c3ddb87599f12752bf770e4920e269404f9e3d7834ee0060fae1de904b5449
SHA1 hash:	86e1480d6d81b1ef250f8d1852edf133d5e58982
MD5 hash:	14def93a100ea2f8c8bbf1e227e4e317
humanhash:	harry-grey-failed-seventeen
File name:	putty.exe
Download:	download sample
Signature	NanoCore Create hunting rule
File size:	1'344'512 bytes
First seen:	2022-03-22 13:10:24 UTC
Last seen:	2022-03-22 18:59:02 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'202 x SnakeKeylogger)
ssdeep	24576:9PbohSlpqIULeXY0jtF349rnpXNZX/Aw7KHBHhNef5KDHkhmC5Jvy1l1oNTmV/Vr:9johSWIhr33e1P7KNuIDHkhmCT
TLSH	T14C5533C63F8F9A67CA9A0E3AA4B1614017F4D44A2D13EB9F55C08036115E7CECE66F63
Reporter	madjack_red
Tags:	exe NanoCore

Indicators Of Compromise (IOCs)

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

IOC	ThreatFox Reference
34.221.57.122:83	https://threatfox.abuse.ch/ioc/438884/

Intelligence

File Origin

# of uploads :

# of downloads :

136

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

nanocore

ID:

File name:

putty.exe

Verdict:

Malicious activity

Analysis date:

2022-03-22 13:10:49 UTC

Tags:

rat nanocore trojan

Link:

https://app.any.run/tasks/366f4aae-163e-4a58-8c27-3da4b2f53966

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/254285/

Detection(s):

SecuriteInfo.com.Trojan.PackedNET.1260.23618.12483.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a window

Сreating synchronization primitives

Creating a file in the %AppData% directory

Enabling the 'hidden' option for recently created files

Adding an access-denied ACE

Creating a process from a recently created file

Creating a process with a hidden window

Creating a file in the %temp% directory

Launching a process

Creating a file

Creating a file in the %AppData% subdirectories

DNS request

Sending a custom TCP request

Forced shutdown of a system process

Enabling autorun by creating a file

Unauthorized injection to a system process

Gathering data

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:

NanoCoreRAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/69cc98f7-126c-4cf7-b64e-ed4619236cb6

Result

Threat name:

Nanocore

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/961662

Signature

.NET source code contains potential unpacker

Adds a directory exclusion to Windows Defender

Antivirus detection for URL or domain

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 dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments

Sigma detected: NanoCore

Sigma detected: Suspicious Add Scheduled Task From User AppData Temp

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:

n/a

Link:

https://mwdb.cert.pl/sample/e6b0dd81d55376a0d817800218cb06cfa6aa169ae337e4f1ba5c3b29bc0251d8/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2022-03-22 08:38:32 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

17 of 26 (65.38%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=42yn3aovkn3kbwaxqabbrsygz6tkufu24m36j4n2lq5stpackhma._file

Verdict:

malicious

Label(s):

nanocorerat

Result

Malware family:

nanocore

Score:

10/10

Tags:

family:nanocore keylogger spyware stealer trojan

Link:

https://tria.ge/reports/220322-qeyfnsbfhn/

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 computer location settings

NanoCore

Malware Config

C2 Extraction:

horizon112.3utilities.com:83
horizon1122.3utilities.com:83

Unpacked files

SH256 hash:

12c01d9000cf63042f93631eee04c8af9f6a30b674df0aa05753b63ff129c222

MD5 hash:

d17b670cbb09a9841a5e117109ea2fa2

SHA1 hash:

d8a8352661a7632b286bfd765b6ce24c03df4de3

Link:

https://www.unpac.me/results/5334702a-35bc-451a-af39-3fcbef03a602/

SH256 hash:

341a23ce369ce638cbf13f330ba8be3bb4335250e7a79d46d794147c48f95375

MD5 hash:

3ad0c3312ac19953e566bab097494902

SHA1 hash:

ae3aea14960ebb2722c1aff1220d6abdfbb0008c

Detections:

win_nanocore_w0

Link:

https://www.unpac.me/results/5334702a-35bc-451a-af39-3fcbef03a602/

SH256 hash:

aba918829cf686373ca0b49a79eb85bfafbf5c84469e895ee38fcf1302c297c6

MD5 hash:

04f332cdf3ad7f97d4138413ef144069

SHA1 hash:

2814cec9b03c3a17b37d8a605a0fcb2692195623

Link:

https://www.unpac.me/results/5334702a-35bc-451a-af39-3fcbef03a602/

SH256 hash:

301642ff8826ac264d1a78b36237b5ece99cb31a2d9cecd04aafb3449679d94b

MD5 hash:

f08268ddb5c1236b947fe2864860fc98

SHA1 hash:

772410110fee00fc53939b94c2f64069fa824cf4

Link:

https://www.unpac.me/results/5334702a-35bc-451a-af39-3fcbef03a602/

SH256 hash:

e6b0dd81d55376a0d817800218cb06cfa6aa169ae337e4f1ba5c3b29bc0251d8

MD5 hash:

14def93a100ea2f8c8bbf1e227e4e317

SHA1 hash:

86e1480d6d81b1ef250f8d1852edf133d5e58982

Link:

https://www.unpac.me/results/5334702a-35bc-451a-af39-3fcbef03a602/

Malware family:

NanoCore

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/e6b0dd81d553/report/overview.html

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/e6b0dd81d55376a0d817800218cb06cfa6aa169ae337e4f1ba5c3b29bc0251d8

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.