MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1ef1d38cc5161ca69827dbc049846c1b42f4ceef9a2b404189a6157e2ce84005. 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

PureLogsStealer

Vendor detections: 13

Maldoc score: 4

Intelligence 13 IOCs YARA 14 File information Comments

SHA256 hash:	1ef1d38cc5161ca69827dbc049846c1b42f4ceef9a2b404189a6157e2ce84005
SHA3-384 hash:	4c3ae8a72240b3c5264413d1b555d79ee8c3012483c0f2d077788ccc06de4fec11b9911e2b7e51c330c5478a1902e8c7
SHA1 hash:	e5bc69c8b6508ad214ec3e50a77e3f4d42b7adb2
MD5 hash:	b012b388d89e054a926ebeac22fc83fa
humanhash:	tango-california-coffee-sierra
File name:	Quotation.xls
Download:	download sample
Signature	PureLogsStealer Create hunting rule
File size:	509'952 bytes
First seen:	2024-01-24 13:52:18 UTC
Last seen:	2024-01-24 14:39:23 UTC
File type:	xls
MIME type:	application/vnd.ms-excel
ssdeep	12288:jSNaBC6uEkbQpozwjTqCfgGEa6YBpiJKqsfBoXU+gYn/8sK:/w6sBWWCfggZBoUrmXULiK
TLSH	T1ECB423013AC9CA6BC48681F40EE645CF0746BC022796E96F3578F7AD1A7AFD0C932657
TrID	46.5% (.XLS) Microsoft Excel sheet (alternate) (56500/1/4) 26.7% (.XLS) Microsoft Excel sheet (32500/1/3) 20.1% (.XLS) Microsoft Excel sheet (alternate) (24500/1/2) 6.5% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter	cocaman
Tags:	PureLogStealer QUOTATION xls

cocaman

Malicious email (T1566.001)
From: "b.vanvenrooij@vbprofs.nl" (likely spoofed)
Received: "from unassigned.quadranet.com (unknown [69.174.98.60]) "
Date: "24 Jan 2024 13:38:28 -0800"
Subject: "Request for Quotation"
Attachment: "Quotation.xls"

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: 4

OLE dump

MalwareBazaar was able to identify 21 sections in this file using oledump:

Section ID	Section size	Section name
1	114 bytes	CompObj
2	244 bytes	DocumentSummaryInformation
3	200 bytes	SummaryInformation
4	94 bytes	MBD003AFF91/CompObj
5	62 bytes	MBD003AFF91/Ole
6	20909 bytes	MBD003AFF91/CONTENTS
7	94 bytes	MBD003AFF92/CompObj
8	62 bytes	MBD003AFF92/Ole
9	64357 bytes	MBD003AFF92/CONTENTS
10	99 bytes	MBD003AFF93/CompObj
11	186843 bytes	MBD003AFF93/Package
12	566 bytes	MBD003AFF94/Ole
13	218093 bytes	Workbook
14	517 bytes	_VBA_PROJECT_CUR/PROJECT
15	104 bytes	_VBA_PROJECT_CUR/PROJECTwm
16	977 bytes	_VBA_PROJECT_CUR/VBA/Sheet1
17	977 bytes	_VBA_PROJECT_CUR/VBA/Sheet2
18	977 bytes	_VBA_PROJECT_CUR/VBA/Sheet3
19	985 bytes	_VBA_PROJECT_CUR/VBA/ThisWorkbook
20	2644 bytes	_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
21	553 bytes	_VBA_PROJECT_CUR/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
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 :

378

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

1ef1d38cc5161ca69827dbc049846c1b42f4ceef9a2b404189a6157e2ce84005.xls

Verdict:

Malicious activity

Analysis date:

2024-01-25 08:15:52 UTC

Tags:

maldoc phishing phishing-xls

Link:

https://app.any.run/tasks/f16d9d3a-18e8-47d6-a133-bd328c7d901a

Note:

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

Verdict:

Legit

File type:

application/vnd.ms-excel

Has a screenshot:

False

Contains macros:

False

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/472727/

Detection(s):

SecuriteInfo.com.Heur.1282.16692.UNOFFICIAL

TwinWave.EvilDoc.OleWishDottedQuadPolicykill.20220908.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Sending a custom TCP request

Creating a window

Searching for synchronization primitives

Launching a process

Сreating synchronization primitives

Launching cmd.exe command interpreter

Sending an HTTP GET request

Launching a process by exploiting the app vulnerability

Unauthorized injection to a system process

Result

Verdict:

Malicious

File Type:

Legacy Excel File with Macro

Link:

https://app.docguard.net/1ef1d38cc5161ca69827dbc049846c1b42f4ceef9a2b404189a6157e2ce84005/results/dashboard

Payload URLs

URL

File name

http://107.172.31.179/500/cob/microcontentidentifiedthroughinternalprocesstogettheserviceandentirethingstogetherwithnewproject.doC

Embedded Ole

Behaviour

SuspiciousRTF detected

Document image

Image:

Download PNG

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

embedequation exploit macros shellcode sload

Link:

https://www.filescan.io/uploads/65b11649fc0458d7ffd8e298/reports/f1fb14cf-fb84-44f1-8d0b-99cc05532acc/overview

Verdict:

Malicious

Labled as:

CVE-2017-0199

Link:

https://www.hybrid-analysis.com/sample/1ef1d38cc5161ca69827dbc049846c1b42f4ceef9a2b404189a6157e2ce84005

Label:

Benign

Suspicious Score:

2.3/10

Score Malicious:

24%

Score Benign:

76%

Link:

https://www.malware.ai/gui/files/?id=358bd836-399e-4c94-a611-91182b7a90ac

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/1ef1d38cc5161ca69827dbc049846c1b42f4ceef9a2b404189a6157e2ce84005

Details

Document With Few Pages

Document contains between one and three pages of content. Most malicious documents are sparse in page count.

Result

Threat name:

PureLog Stealer

Detection:

malicious

Classification:

troj.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1380322

Signature

.NET source code contains potential unpacker

Antivirus detection for dropped file

Antivirus detection for URL or domain

Document exploit detected (process start blacklist hit)

Excel sheet contains many unusual embedded objects

Machine Learning detection for dropped file

Malicious sample detected (through community Yara rule)

Microsoft Office drops suspicious files

Microsoft Office launches external ms-search protocol handler (WebDAV)

Multi AV Scanner detection for submitted file

Office equation editor drops PE file

Office equation editor establishes network connection

Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)

Office viewer loads remote template

Shellcode detected

Sigma detected: EQNEDT32.EXE connecting to internet

Sigma detected: File Dropped By EQNEDT32EXE

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

Yara detected Costura Assembly Loader

Yara detected PureLog Stealer

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/1ef1d38cc5161ca69827dbc049846c1b42f4ceef9a2b404189a6157e2ce84005/

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=d3y5hdgfcyokngbh3paetbdmdnbpjtxptivuaqmjuykx4lhiiacq._file

Result

Malware family:

zgrat

Score:

10/10

Tags:

family:formbook family:zgrat campaign:b21s rat spyware stealer trojan

Link:

https://tria.ge/reports/240124-q6y7aabhf7/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Launches Equation Editor

Modifies Internet Explorer settings

Modifies registry class

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Uses Volume Shadow Copy WMI provider

Uses Volume Shadow Copy service COM API

Office loads VBA resources, possible macro or embedded object present

Suspicious use of SetThreadContext

Abuses OpenXML format to download file from external location

Executes dropped EXE

Loads dropped DLL

Blocklisted process makes network request

Downloads MZ/PE file

Formbook payload

Detect ZGRat V1

Formbook

ZGRat

Malware family:

FormBook

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/1ef1d38cc516/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/1ef1d38cc5161ca69827dbc049846c1b42f4ceef9a2b404189a6157e2ce84005

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:	Borland Create hunting rule
Author:	malware-lu

Rule name:	Check_OutputDebugStringA_iat Create hunting rule

Rule name:	cobalt_strike_tmp01925d3f Create hunting rule
Author:	The DFIR Report
Description:	files - file ~tmp01925d3f.exe
Reference:	https://thedfirreport.com

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerException__SetConsoleCtrl Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	informational_win_ole_protected Create hunting rule
Author:	Jeff White (karttoon@gmail.com) @noottrak
Description:	Identify OLE Project protection within documents.

Rule name:	maldoc_getEIP_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	maldoc_OLE_file_magic_number Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	malware_shellcode_hash Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect shellcode api hash value

Rule name:	meth_get_eip Create hunting rule
Author:	Willi Ballenthin

Rule name:	office_document_vba Create hunting rule
Author:	Jean-Philippe Teissier / @Jipe_
Description:	Office document with embedded VBA
Reference:	https://github.com/jipegit/

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	SEH__vba Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	vmdetect Create hunting rule
Author:	nex
Description:	Possibly employs anti-virtualization techniques

File information

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

Malspam

PureLogsStealer

xls 1ef1d38cc5161ca69827dbc049846c1b42f4ceef9a2b404189a6157e2ce84005

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/472727/

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