MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d75a1f7a80cae824d8f6446bfd07c1491c9455377d7877b7903cffd222ec9488. 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

ZLoader

Vendor detections: 7

Maldoc score: 11

Intelligence 7 IOCs YARA 6 File information Comments

SHA256 hash:	d75a1f7a80cae824d8f6446bfd07c1491c9455377d7877b7903cffd222ec9488
SHA3-384 hash:	776164471fa77f29b7059153459f0c8e9162ae7b19c71ddb01ea6df95c52f47af8cbdb8a884ea19bea169f54d423002a
SHA1 hash:	9918d328b7ab2fd23a8b2cd31bcc95e9e72d8459
MD5 hash:	bb7af1c19303a70bfe8802455973063d
humanhash:	jupiter-kitten-dakota-georgia
File name:	1403181.docm
Download:	download sample
Signature	ZLoader Create hunting rule
File size:	72'376 bytes
First seen:	2021-01-21 17:33:31 UTC
Last seen:	Never
File type:	docm
MIME type:	application/vnd.openxmlformats-officedocument.wordprocessingml.document
ssdeep	1536:rWKol6GDEspfTUI6Qd2OEDJ7pZy1zmpf1:rJjGD3TUI6Qd/MZFf1
TLSH	D863123EC38B7D7CE6FE613BD0540862B740884EAF15825C64529C6EF524277DB972D4
Reporter	cocaman
Tags:	docm ZLoader

cocaman

Malicious email (T1566.001)
From: ""Cynthia J. Bright" <headofficenotify@howiclothing.com>" (likely spoofed)
Received: "from howiclothing.com (howiclothing.com [62.4.17.38]) "
Date: "Thu, 21 Jan 2021 17:30:05 +0000"
Subject: "Invoice data"
Attachment: "1403181.docm"

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: 11

OLE dump

MalwareBazaar was able to identify 30 sections in this file using oledump:

Section ID	Section size	Section name
A1	689 bytes	PROJECT
A2	161 bytes	PROJECTwm
A3	97 bytes	UserForm1/CompObj
A4	286 bytes	UserForm1/VBFrame
A5	226 bytes	UserForm1/f
A6	292 bytes	UserForm1/o
A7	97 bytes	UserForm2/CompObj
A8	287 bytes	UserForm2/VBFrame
A9	798 bytes	UserForm2/f
A10	1080 bytes	UserForm2/o
A11	97 bytes	UserForm3/CompObj
A12	292 bytes	UserForm3/VBFrame
A13	94 bytes	UserForm3/f
A14	56 bytes	UserForm3/o
A15	97 bytes	UserForm4/CompObj
A16	292 bytes	UserForm4/VBFrame
A17	94 bytes	UserForm4/f
A18	56 bytes	UserForm4/o
A19	11143 bytes	VBA/ThisDocument
A20	1158 bytes	VBA/UserForm1
A21	3604 bytes	VBA/UserForm2
A22	1451 bytes	VBA/UserForm3
A23	1453 bytes	VBA/UserForm4
A24	7692 bytes	VBA/_VBA_PROJECT
A25	1702 bytes	VBA/__SRP_0
A26	177 bytes	VBA/__SRP_1
A27	550 bytes	VBA/__SRP_2
A28	295 bytes	VBA/__SRP_3
A29	883 bytes	VBA/dir

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
AutoExec	Document_Close	Runs when the Word document is closed
Suspicious	Open	May open a file
Suspicious	Run	May run an executable file or a system command
Suspicious	CreateObject	May create an OLE object
Suspicious	CallByName	May attempt to obfuscate malicious function calls
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 :

260

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

1403181.docm

Verdict:

Suspicious activity

Analysis date:

2021-01-21 17:51:44 UTC

Tags:

macros macros-on-close generated-doc

Link:

https://app.any.run/tasks/e9fba3e7-ec85-4231-89bc-6bfffe159a03

Note:

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

Verdict:

Legit

File type:

application/vnd.ms-word.document.macroEnabled.12

Has a screenshot:

False

Contains macros:

True

Detection(s):

TwinWave.EvilDoc.CROStringBuilderHidingPlacesPapaDontTakeNoMess.20200916.UNOFFICIAL

Result

Verdict:

Clean

Maliciousness:

Behaviour

Creating a window

Result

Verdict:

Malicious

File Type:

Word File with Macro

Link:

https://app.docguard.net/d75a1f7a80cae824d8f6446bfd07c1491c9455377d7877b7903cffd222ec9488/results/dashboard

Result

Threat name:

Unknown

Detection:

malicious

Classification:

troj.expl

Score:

72 / 100

Link:

https://www.joesandbox.com/analysis/587539

Signature

Document contains an embedded VBA macro which may execute processes

Document contains an embedded VBA macro which might access itself as a file (possible anti-VM)

Document contains an embedded VBA macro with suspicious strings

Machine Learning detection for sample

Multi AV Scanner detection for submitted file

Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/d75a1f7a80cae824d8f6446bfd07c1491c9455377d7877b7903cffd222ec9488/

Threat name:

Script-Macro.Trojan.Heuristic

Status:

Malicious

First seen:

2021-01-21 17:34:13 UTC

File Type:

Document

Extracted files:

AV detection:

4 of 29 (13.79%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=25nb66uazlucjwhwirv72b6bjeojivjxpv4hpn4qht75eixmssea._file

Result

Malware family:

n/a

Score:

8/10

Tags:

macro ransomware

Link:

https://tria.ge/reports/210121-vbj1l6fm52/

Behaviour

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Checks processor information in registry

Enumerates system info in registry

Office loads VBA resources, possible macro or embedded object present

Drops file in Windows directory

Enumerates physical storage devices

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

Threat name:

Trojan

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/d75a1f7a80cae824d8f6446bfd07c1491c9455377d7877b7903cffd222ec9488

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

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

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

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

ZLoader

docm d75a1f7a80cae824d8f6446bfd07c1491c9455377d7877b7903cffd222ec9488

(this sample)

Delivery method

Distributed via e-mail attachment

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