MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c91c9720eb02f239a680b5ca7745104ccacf19bb8e421c3d4475766ea3d1c21. 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

Loki

Vendor detections: 11

Maldoc score: 4

Intelligence 11 IOCs YARA 14 File information Comments

SHA256 hash:	8c91c9720eb02f239a680b5ca7745104ccacf19bb8e421c3d4475766ea3d1c21
SHA3-384 hash:	c1a9880dba57e800a4ea43343977bab1ad22d8fda377428249c08e262b08abb9bc9a68a16c85d1f090ebb80929645d5e
SHA1 hash:	dfd30ee96c4751890019d9114b56bc0dc30f884b
MD5 hash:	e67adebc4ef48c989313fb6b1041bedd
humanhash:	berlin-cat-purple-fix
File name:	Debit note.xls
Download:	download sample
Signature	Loki Create hunting rule
File size:	470'016 bytes
First seen:	2024-02-08 07:11:14 UTC
Last seen:	2024-02-08 08:32:43 UTC
File type:	xls
MIME type:	application/vnd.ms-excel
ssdeep	12288:mSNyWQmmme6v3QLQuEV6NCLGZOKTAXkFaDgVcCj4MHE//vc1dPR2nl3:IWQmmav30xI6NCCZOyAXkFaD4cEj1BRq
TLSH	T1F9A41200329CC98AE68AA7F965A274DE201CFC327AC5E5C3B788F71E4479FB75123515
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	abuse_ch
Tags:	Loki 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	MBD0006FFC7/CompObj
5	62 bytes	MBD0006FFC7/Ole
6	20909 bytes	MBD0006FFC7/CONTENTS
7	94 bytes	MBD0006FFC8/CompObj
8	62 bytes	MBD0006FFC8/Ole
9	141190 bytes	MBD0006FFC8/CONTENTS
10	99 bytes	MBD0006FFC9/CompObj
11	31530 bytes	MBD0006FFC9/Package
12	542 bytes	MBD0006FFCA/Ole
13	256174 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 :

306

Origin country :

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/475297/

Detection(s):

SecuriteInfo.com.Trojan.Script.4681.26133.UNOFFICIAL

SecuriteInfo.com.IMG.Phish.20422.21836.UNOFFICIAL

TwinWave.EvilDoc.OleWishDottedQuadPolicykill.20220908.UNOFFICIAL

Result

Verdict:

Malicious

File Type:

Legacy Excel File with Macro

Link:

https://app.docguard.net/8c91c9720eb02f239a680b5ca7745104ccacf19bb8e421c3d4475766ea3d1c21/results/dashboard

Payload URLs

URL

File name

http://172.245.135.142/3333/b19/ballonprocessedbymicrosofttostickonnewindustrytodevelopnewproductupdateandupgradetheperformanceofpc.doC

Embedded Ole

Behaviour

SuspiciousRTF detected

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

embedequation exploit macros shellcode sload

Link:

https://www.filescan.io/uploads/65c47ec6186112aa12a3abc1/reports/f2200831-9f3c-4e6d-973b-d891e8b7beec/overview

Verdict:

Malicious

Labled as:

CVE-2017-0199

Link:

https://www.hybrid-analysis.com/sample/8c91c9720eb02f239a680b5ca7745104ccacf19bb8e421c3d4475766ea3d1c21

Label:

Malicious

Suspicious Score:

5.7/10

Score Malicious:

58%

Score Benign:

42%

Link:

https://www.malware.ai/gui/files/?id=fc7a0000-4c9e-4df0-83ec-7c6806433a23

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/8c91c9720eb02f239a680b5ca7745104ccacf19bb8e421c3d4475766ea3d1c21

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:

Lokibot, Strela Stealer

Detection:

malicious

Classification:

spre.troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1388848

Signature

Antivirus detection for dropped file

Antivirus detection for URL or domain

Bypasses PowerShell execution policy

C2 URLs / IPs found in malware configuration

Connects to a pastebin service (likely for C&C)

Creates autostart registry keys with suspicious values (likely registry only malware)

Document exploit detected (process start blacklist hit)

Excel sheet contains many unusual embedded objects

Found malware configuration

Injects a PE file into a foreign processes

Installs new ROOT certificates

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 domain / URL

Multi AV Scanner detection for submitted file

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

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: Bad Opsec Defaults Sacrificial Processes With Improper Arguments

Sigma detected: Base64 Encoded PowerShell Command Detected

Sigma detected: EQNEDT32.EXE connecting to internet

Sigma detected: Equation Editor Network Connection

Sigma detected: File Dropped By EQNEDT32EXE

Sigma detected: Potential PowerShell Obfuscation Via Reversed Commands

Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet

Sigma detected: Powershell download and load assembly

Sigma detected: Powershell download payload from hardcoded c2 list

Sigma detected: rundll32 run dll from internet

Sigma detected: Script Initiated Connection to Non-Local Network

Sigma detected: Suspicious Microsoft Office Child Process

Sigma detected: WScript or CScript Dropper

Snort IDS alert for network traffic

Suspicious execution chain found

Suspicious powershell command line found

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

Tries to harvest and steal browser information (history, passwords, etc)

Tries to harvest and steal ftp login credentials

Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)

Tries to steal Mail credentials (via file / registry access)

Tries to steal Mail credentials (via file registry)

Very long command line found

Windows Scripting host queries suspicious COM object (likely to drop second stage)

Writes to foreign memory regions

Wscript starts Powershell (via cmd or directly)

Yara detected aPLib compressed binary

Yara detected Lokibot

Yara detected Strela Stealer

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/8c91c9720eb02f239a680b5ca7745104ccacf19bb8e421c3d4475766ea3d1c21/

Threat name:

Win32.Trojan.ScarletFlash

Status:

Malicious

First seen:

2024-02-08 02:55:46 UTC

File Type:

Document

Extracted files:

AV detection:

9 of 38 (23.68%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=rsi4s4qowaxshgtibnoko5cratgkz4m3xdscdq6ui5lwn2r5dqqq._file

Result

Malware family:

n/a

Score:

8/10

Tags:

n/a

Link:

https://tria.ge/reports/240208-h1hckseehq/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

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

Checks processor information in registry

Enumerates system info in registry

Launches Equation Editor

Modifies Internet Explorer settings

Modifies registry class

Script User-Agent

Suspicious behavior: AddClipboardFormatListener

Office loads VBA resources, possible macro or embedded object present

Enumerates physical storage devices

Drops file in System32 directory

Abuses OpenXML format to download file from external location

Blocklisted process makes network request

Malware family:

Lokibot

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/8c91c9720eb0/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/8c91c9720eb02f239a680b5ca7745104ccacf19bb8e421c3d4475766ea3d1c21

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

Loki

xls 8c91c9720eb02f239a680b5ca7745104ccacf19bb8e421c3d4475766ea3d1c21

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/475297/

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