MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8e7beef41d120fd5f547fec2a8bfdd75ab7a8c45a19b8a16c7ad20c8fc67a96f. 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: 8

Maldoc score: 27

Intelligence 8 IOCs YARA 12 File information Comments

SHA256 hash:	8e7beef41d120fd5f547fec2a8bfdd75ab7a8c45a19b8a16c7ad20c8fc67a96f
SHA3-384 hash:	59c596afc6dd3348654ef8a417042149dc0b88b180397e2df0431b4ebbc8f0bb73256c37a58c2526f96ae61327994fb5
SHA1 hash:	c721848e883a0bdf3533ccbe563f291e0335fe08
MD5 hash:	e9a25847284ffb24f47d71ff35c98ac5
humanhash:	edward-delaware-sad-three
File name:	49k_Eur_Payment_Receipt.doc
Download:	download sample
Signature	Loki Create hunting rule
File size:	167'936 bytes
First seen:	2021-02-01 17:05:34 UTC
Last seen:	2021-02-01 18:58:07 UTC
File type:	doc
MIME type:	application/msword
ssdeep	3072:KY9oCkP/RyecsVfrqmnq6X0tpEKvU/Y6T:KY9oCkP/FVT26X07EKvU/Y4
TLSH	3CF34D55A782DD0FE3AA42304CABBFF5B725FC0D5F1B82876181F22A1C39A50EB4D255
Reporter	abuse_ch
Tags:	doc Loki

abuse_ch

Malspam distributing Loki:

HELO: fideicomiso.com.uy
Sending IP: 200.108.214.6
From: Accounts
Subject: FW:RE:PAYMENT Confirmation 103
Attachment: 49k_Eur_Payment_Receipt.doc

Loki payload URL:
http://167.71.40.10/yifm/CBDMputty.exe

Loki C2:
http://cfdprivateme9082.serveirc.com/FuRGUFN/Panel/five/fre.php

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: 27

Application name is Microsoft Office Word

Office document is in OLE format

Office document contains VBA Macros

OLE dump

MalwareBazaar was able to identify 18 sections in this file using oledump:

Section ID	Section size	Section name
1	114 bytes	CompObj
2	4096 bytes	DocumentSummaryInformation
3	4096 bytes	SummaryInformation
4	6941 bytes	1Table
5	9417 bytes	Data
6	426 bytes	Macros/PROJECT
7	71 bytes	Macros/PROJECTwm
8	1114 bytes	Macros/VBA/NewMacros
9	115140 bytes	Macros/VBA/ThisDocument
10	7344 bytes	Macros/VBA/_VBA_PROJECT
11	3869 bytes	Macros/VBA/__SRP_0
12	236 bytes	Macros/VBA/__SRP_1
13	104 bytes	Macros/VBA/__SRP_2
14	84 bytes	Macros/VBA/__SRP_3
15	500 bytes	Macros/VBA/__SRP_4
16	2068 bytes	Macros/VBA/__SRP_5
17	577 bytes	Macros/VBA/dir
18	4096 bytes	WordDocument

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_Open	Runs when the Word or Publisher document is opened
IOC	167.71.40.10	IPv4 address code and P-code are different, this may have been used to hide malicious code
Suspicious	Open	May open a file
Suspicious	Write	May write to a file (if combined with Open)
Suspicious	adodb.stream	May create a text file
Suspicious	SaveToFile	May create a text file
Suspicious	Shell	May run an executable file or a system command
Suspicious	WScript.Shell	May run an executable file or a system command
Suspicious	CreateObject	May create an OLE object
Suspicious	Shell.Application	May run an application (if combined with CreateObject)
Suspicious	microsoft.xmlhttp	May download files from the Internet
Suspicious	Chr	May attempt to obfuscate specific strings (use option --deobf to deobfuscate)
Suspicious	Xor	May attempt to obfuscate specific strings (use option --deobf to deobfuscate)
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 :

130

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

49k_Eur_Payment_Receipt.doc

Verdict:

No threats detected

Analysis date:

2021-02-01 17:07:38 UTC

Tags:

macros macros-on-open

Link:

https://app.any.run/tasks/a6f6103c-a204-451d-9075-29f58061622c

Note:

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

Verdict:

Malicious

File type:

application/msword

Has a screenshot:

False

Contains macros:

True

Result

Verdict:

Clean

Maliciousness:

Behaviour

Creating a window

Result

Verdict:

Malicious

File Type:

Legacy Word File with Macro

Link:

https://app.docguard.net/8e7beef41d120fd5f547fec2a8bfdd75ab7a8c45a19b8a16c7ad20c8fc67a96f/results/dashboard

Document image

Image:

Download PNG

Result

Verdict:

MALICIOUS

Details

Suspicious Document Variables

Detected a macro that references a suspicious number of tersely named variables.

Macro with Startup Hook

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

Document With Few Pages

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

Macro with File System Write

Detected macro logic that can write data to the file system.

Shell.Application Object

Detected the instantiation of Shell Application object within the macro.

Macro Contains Suspicious String

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

Document With Minimal Content

Document contains less than 1 kilobyte of semantic information.

Result

Threat name:

Lokibot

Detection:

malicious

Classification:

troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/595612

Signature

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Detected unpacking (changes PE section rights)

Detected unpacking (overwrites its own PE header)

Document contains an embedded VBA macro with suspicious strings

Document contains an embedded VBA with functions possibly related to ADO stream file operations

Document contains an embedded VBA with functions possibly related to HTTP operations

Document contains an embedded VBA with hexadecimal encoded strings

Document contains VBA stomped code (only p-code) potentially bypassing AV detection

Document exploit detected (creates forbidden files)

Document exploit detected (drops PE files)

Document exploit detected (process start blacklist hit)

Found malware configuration

Injects a PE file into a foreign processes

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

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 process drops PE file

Sigma detected: MS Office Product Spawning Exe in User Dir

Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)

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 access)

Tries to steal Mail credentials (via file registry)

Yara detected aPLib compressed binary

Yara detected Lokibot

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/8e7beef41d120fd5f547fec2a8bfdd75ab7a8c45a19b8a16c7ad20c8fc67a96f/

Threat name:

Script-Macro.Downloader.Powdow

Status:

Malicious

First seen:

2021-02-01 14:20:11 UTC

AV detection:

17 of 29 (58.62%)

Threat level:

3/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=rz5655a5cih5l5kh73bkrp65owvxvdcfugnyufwhvuqmr7dhvfxq._file

Result

Malware family:

n/a

Score:

8/10

Tags:

macro macro_on_action xlm

Link:

https://tria.ge/reports/210201-y76hnp5pes/

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/8e7beef41d120fd5f547fec2a8bfdd75ab7a8c45a19b8a16c7ad20c8fc67a96f

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:	INDICATOR_SUSPICIOUS_Binary_References_Browsers Create hunting rule
Author:	ditekSHen
Description:	Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Rule name:	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many file transfer clients. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_GENInfoStealer Create hunting rule
Author:	ditekSHen
Description:	Detects executables containing common artifcats observed in infostealers

Rule name:	infostealer_loki Create hunting rule

Rule name:	infostealer_xor_patterns Create hunting rule
Author:	jeFF0Falltrades
Description:	The XOR and string patterns shown here appear to be unique to certain information-stealing malware families, namely LokiBot and Pony/Fareit. The XOR patterns were observed in a several loaders and payloads for LokiBot, but have also appeared (less frequently) in Pony/Fareit loaders and samples. The two accompanying rules below can be used to further classify the final payloads.

Rule name:	Loki Create hunting rule
Author:	kevoreilly
Description:	Loki Payload

Rule name:	Lokibot Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Lokibot in memory
Reference:	internal research

Rule name:	STEALER_Lokibot Create hunting rule
Author:	Marc Rivero \| McAfee ATR Team
Description:	Rule to detect Lokibot stealer

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:	win_lokipws_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator

Rule name:	with_sqlite Create hunting rule
Author:	Julian J. Gonzalez <info@seguridadparatodos.es>
Description:	Rule to detect the presence of SQLite data in raw image
Reference:	http://www.st2labs.com

File information

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

Malspam

Loki

doc 8e7beef41d120fd5f547fec2a8bfdd75ab7a8c45a19b8a16c7ad20c8fc67a96f

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/986794/

Delivery method

Distributed via e-mail attachment

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