MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d930f445a9053bfefd0cba7bf24b4ec7b267d5c498d4397d1bc694fcf0c68843. 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: 5

Intelligence 7 IOCs YARA 6 File information Comments

SHA256 hash:	d930f445a9053bfefd0cba7bf24b4ec7b267d5c498d4397d1bc694fcf0c68843
SHA3-384 hash:	52bfe5e6300d53faa7854eda148c0691c1637abd6e7318d22768871ae28f7dfc43ae2462ac6972a8a67aea2e14672953
SHA1 hash:	6e1e23e8891a8ecd8ee3d85bc77c281f4b6be63b
MD5 hash:	e40c18535c48fdfe3b2e841d51c94038
humanhash:	delaware-ack-social-fix
File name:	Doc-7679.xls
Download:	download sample
Signature	ZLoader Create hunting rule
File size:	32'256 bytes
First seen:	2020-12-08 15:08:25 UTC
Last seen:	2020-12-08 17:08:30 UTC
File type:	xls
MIME type:	application/vnd.ms-excel
ssdeep	768:APXk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJBRhgGWN9JD:MXk3hbdlylKsgqopeJBWhZFGkE+cL2Nv
TLSH	13E272E7F3C5AC45CA49477A486782A07717FC251B97838B3389F7292F72AC0890355B
Reporter	ffforward
Tags:	ZLoader

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: 5

Application name is Microsoft Excel

Office document is in OLE format

OLE dump

MalwareBazaar was able to identify 3 sections in this file using oledump:

Section ID	Section size	Section name
1	4096 bytes	DocumentSummaryInformation
2	4096 bytes	SummaryInformation
3	22098 bytes	Workbook

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	Auto_Open	Runs when the Excel Workbook is opened
Suspicious	Hex Strings	Hex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
Suspicious	Base64 Strings	Base64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin

# of uploads :

# of downloads :

166

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

Doc-7679.xls

Verdict:

No threats detected

Analysis date:

2020-12-08 15:18:08 UTC

Tags:

macros macros40 generated-doc

Link:

https://app.any.run/tasks/d00c8205-17a7-477b-8c44-38b81dea4721

Note:

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

Detection(s):

SecuriteInfo.com.Trojan.Script.Generic.7575.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a file

Creating a process with a hidden window

DNS request

Sending a custom TCP request

Possible injection to a system process

Launching a process by exploiting the app vulnerability

Creating a process from a recently created file

Result

Verdict:

Malicious

File Type:

Legacy Office File

Link:

https://app.docguard.net/d930f445a9053bfefd0cba7bf24b4ec7b267d5c498d4397d1bc694fcf0c68843/results/dashboard

Result

Threat name:

Unknown

Detection:

malicious

Classification:

spre.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/558063

Signature

Document exploit detected (creates forbidden files)

Document exploit detected (process start blacklist hit)

Injects code into the Windows Explorer (explorer.exe)

Microsoft Office drops suspicious files

Multi AV Scanner detection for submitted file

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

Potential malicious VBS script found (has network functionality)

Potential malicious VBS script found (suspicious strings)

System process connects to network (likely due to code injection or exploit)

Yara detected VBS Downloader Generic

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/d930f445a9053bfefd0cba7bf24b4ec7b267d5c498d4397d1bc694fcf0c68843/

Threat name:

Script.Trojan.Heuristic

Status:

Malicious

First seen:

2020-12-08 15:09:05 UTC

AV detection:

2 of 47 (4.26%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=3eypirnjau5757imxj57es2oy6zgpvoetdkds7i3y2kpz4ggrbbq._file

Result

Malware family:

n/a

Score:

8/10

Tags:

macro

Link:

https://tria.ge/reports/201208-l8pbgx1xqe/

Behaviour

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of SetWindowsHookEx

Checks processor information in registry

JavaScript code in executable

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/d930f445a9053bfefd0cba7bf24b4ec7b267d5c498d4397d1bc694fcf0c68843

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:	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:	SUSP_EnableContent_String_Gen Create hunting rule
Author:	Florian Roth
Description:	Detects suspicious string that asks to enable active content in Office Doc
Reference:	Internal Research

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

xls d930f445a9053bfefd0cba7bf24b4ec7b267d5c498d4397d1bc694fcf0c68843

(this sample)

Delivery method

Distributed via e-mail attachment

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