MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c20d1d13fddb96e7864749099eebdd27e2a5446a83ac76ad8751b6401d951ce3. 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

njrat

Vendor detections: 9

Maldoc score: 6

Intelligence 9 IOCs YARA 10 File information Comments

SHA256 hash:	c20d1d13fddb96e7864749099eebdd27e2a5446a83ac76ad8751b6401d951ce3
SHA3-384 hash:	86feb341170f59a4a78ee3e7ce82edc4bbdd0174263df4a6c271b72d68135c8cc3d85c693f8bc7be3acaeb8d7e226258
SHA1 hash:	783ea269afb3afa4c3d51feb79d29907fa4e1757
MD5 hash:	dc140c9631c2991a8aeff3beed9d94cd
humanhash:	music-autumn-nitrogen-grey
File name:	DHL091.xlsm
Download:	download sample
Signature	njrat Create hunting rule
File size:	407'996 bytes
First seen:	2021-02-08 06:36:07 UTC
Last seen:	2021-02-08 09:08:46 UTC
File type:	xlsm
MIME type:	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep	12288:V1966HyQnGJhJrpY3o3XkYcuqvqSjMjYuWZmoj:V19bXuhrYbLvzQssoj
TLSH	F184237B641DBDA6D7FF98ADC00899E6300EC2293345EFFDA94945808D9B03C46694DF
Reporter	abuse_ch
Tags:	DHL NjRAT RAT xlsm

abuse_ch

Malspam distributing njrat:

HELO: rdns0.templaterunner.club
Sending IP: 176.107.178.166
From: DHL <sales@templaterunner.club>
Subject: Your parcel shipped today.
Attachment: DHL091.xlsm

NjRAT payload URL:
http://139.28.36.119/yes.exe

NjRAT C2:
resultbox.ddns.net:7878

Office OLE Information

This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE id

Maldoc score: 6

OLE dump

MalwareBazaar was able to identify 7 sections in this file using oledump:

Section ID	Section size	Section name
A1	494 bytes	PROJECT
A2	86 bytes	PROJECTwm
A3	963 bytes	VBA/ThisWorkbook
A4	7 bytes	VBA/_VBA_PROJECT
A5	234 bytes	VBA/dir
A6	178 bytes	VBA/hywhjkatbfffre

OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

Type	Keyword	Description
Suspicious	Create	May execute file or a system command through WMI
Suspicious	CreateObject	May create an OLE object
Suspicious	Hex Strings	Hex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin

# of uploads :

# of downloads :

162

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

DHL091.xlsm

Verdict:

No threats detected

Analysis date:

2021-02-08 06:36:39 UTC

Tags:

macros

Link:

https://app.any.run/tasks/65d32c9b-8acb-467a-ae82-46618bcfa82f

Note:

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

Verdict:

Malicious

File type:

application/vnd.ms-excel.sheet.macroEnabled.12

Has a screenshot:

False

Contains macros:

True

Detection(s):

SecuriteInfo.com.W97M.DownLoader.4953.6285.32641.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Result

Verdict:

Malicious

File Type:

Excel File with Macro

Link:

https://app.docguard.net/c20d1d13fddb96e7864749099eebdd27e2a5446a83ac76ad8751b6401d951ce3/results/dashboard

Payload URLs

URL

File name

http://139.28.36.119/yes.exe

sharedStrings.xml

Document image

Image:

Download PNG

Result

Verdict:

MALICIOUS

Details

Macro with Startup Hook

Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.

IPv4 Dotted Quad URL

A URL was detected referencing a direct IP address, as opposed to a domain name.

Macro Contains Suspicious String

Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...

Powershell

Possibly Powershell fragment found embedded.

Document With Minimal Content

Document contains less than 1 kilobyte of semantic information.

Result

Threat name:

Unknown

Detection:

malicious

Classification:

n/a

Score:

48 / 100

Link:

https://www.joesandbox.com/analysis/601498

Signature

Multi AV Scanner detection for submitted file

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/c20d1d13fddb96e7864749099eebdd27e2a5446a83ac76ad8751b6401d951ce3/

Threat name:

Script-Macro.Trojan.Corona

Status:

Malicious

First seen:

2021-02-07 22:17:42 UTC

AV detection:

14 of 47 (29.79%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=yigr2e753olopbshjeez5265e7rkkrdkqowhnlmhkg3eahmvdtrq._file

Result

Malware family:

n/a

Score:

8/10

Tags:

macro

Link:

https://tria.ge/reports/210208-y3tyhx1bsn/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Office loads VBA resources, possible macro or embedded object present

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/c20d1d13fddb96e7864749099eebdd27e2a5446a83ac76ad8751b6401d951ce3

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:	CN_disclosed_20180208_c Create hunting rule
Author:	Florian Roth
Description:	Detects malware from disclosed CN malware set
Reference:	https://twitter.com/cyberintproject/status/961714165550342146

Rule name:	Email_stealer_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	Email in files like avemaria

Rule name:	INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse Create hunting rule
Author:	ditekSHen
Description:	Detects file containing reversed ASEP Autorun registry keys

Rule name:	IPPort_combo_mem Create hunting rule
Author:	James_inthe_box
Description:	IP and port combo

Rule name:	Njrat Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect njRAT in memory

Rule name:	Ping_Del_method_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	cmd ping IP nul del

Rule name:	Reverse_text_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	Reverse text detected

Rule name:	Select_from_enumeration Create hunting rule
Author:	James_inthe_box
Description:	IP and port combo

Rule name:	SharedStrings Create hunting rule
Author:	Katie Kleemola
Description:	Internal names found in LURK0/CCTV0 samples

Rule name:	UAC_bypass_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	UAC bypass in files like avemaria

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

njrat

xlsm c20d1d13fddb96e7864749099eebdd27e2a5446a83ac76ad8751b6401d951ce3

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/994292/

Delivery method

Distributed via e-mail attachment

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