MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3781be41d032730640ebea013e01a0aa5cd3a785981bbead9d731ba8076212dc. 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

SHA256 hash:	3781be41d032730640ebea013e01a0aa5cd3a785981bbead9d731ba8076212dc
SHA3-384 hash:	1237ed9e4f9668529aaf05cdd24f1bb21f999938cddb5f437e8d2ca160c07206ed6680fb28993896584c2b6cf2be763e
SHA1 hash:	8b8fb23f297505dc61662ad1821fe447a75b6e56
MD5 hash:	73928e7fb485e3460e0d26be27e534ea
humanhash:	thirteen-lake-eleven-winner
File name:	R&B CI,PL 20220407 R-71 ocean.xlsx
Download:	download sample
Signature	Loki Alert Create hunting rule
File size:	199'432 bytes
First seen:	2022-04-07 07:48:49 UTC
Last seen:	Never
File type:	xlsx
MIME type:	application/encrypted
ssdeep	3072:U8CC0Fn7ZKn5o3oxlxgSXyAja/YKpNfKVd601/CEJpKyqqZpYeeebC/nHL:c/Fn25tv3iAjahDfcY01BDKcZqe52/HL
TLSH	T1C8140255689D5A50F0126DF05B8EF21F4DEB5FF2FC3419982068BE8D5A348CABFD2808
Reporter	abuse_ch
Tags:	CVE-2017-11882 Loki VelvetSweatshop xlsx

Office OLE Information

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This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE dump

Detection: VelvetSweatshop

MalwareBazaar was able to identify 6 sections in this file using oledump:

Section ID	Section size	Section name
1	64 bytes	DataSpaces/DataSpaceInfo/StrongEncryptionDataSpace
2	112 bytes	DataSpaces/DataSpaceMap
3	208 bytes	DataSpaces/TransformInfo/StrongEncryptionTransform/Primary
4	76 bytes	DataSpaces/Version
5	192776 bytes	EncryptedPackage
6	224 bytes	EncryptionInfo

Intelligence

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File Origin

# of uploads :

1

# of downloads :

207

Origin country :

n/a

Vendor Threat Intelligence

ANY.RUN lokibot

Malware family:

lokibot

Alert

Create hunting rule

ID:

1

File name:

73928e7fb485e3460e0d26be27e534ea.zip

Verdict:

Malicious activity

Analysis date:

2022-04-07 11:55:35 UTC

Tags:

encrypted trojan opendir exploit CVE-2017-11882 loader lokibot stealer

Link:

https://app.any.run/tasks/b0e681e6-74e0-4ca3-92a4-6d65e1022101

Note:

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

BitDam Malicious

Verdict:

Malicious

File type:

application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

Has a screenshot:

False

Contains macros:

False

CAPE Sandbox

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/261622/

ClamAV Detected

Detection(s):

SecuriteInfo.com.Exploit.Siggen3.30618.4225.4428.UNOFFICIAL

Alert

Create hunting rule

PUA.Doc.Packed.EncryptedDoc-6563700-0

Alert

Create hunting rule

Dr. Web vxCube Malware

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Sending a custom TCP request

Creating a window

Searching for synchronization primitives

Launching a process

Creating a file

Сreating synchronization primitives

Sending an HTTP GET request

Creating a process from a recently created file

DocGuard Malicious

Result

Verdict:

Malicious

File Type:

OOXML Excel File with Embedding Objects in Encrypted Excel File

Link:

https://app.docguard.net/3781be41d032730640ebea013e01a0aa5cd3a785981bbead9d731ba8076212dc/results/dashboard

Document image

Image:

Download PNG

inlyse Malware.AI Malicious

Label:

Malicious

Suspicious Score:

9.9/10

Score Malicious:

99%

Score Benign:

0%

Link:

https://www.malware.ai/gui/files/?id=6cf7d19f-2ea0-4a2f-a492-c91859d3c7d4

InQuest MALICIOUS

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/3781be41d032730640ebea013e01a0aa5cd3a785981bbead9d731ba8076212dc

Details

Macro Execution Coercion

Detected a document that appears to social engineer the user into activating embedded logic.

Document With No Content

Document contains little or no semantic information.

Joe Sandbox Lokibot

Result

Threat name:

Lokibot

Alert

Create hunting rule

Detection:

malicious

Classification:

troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/972258

Signature

.NET source code contains potential unpacker

Adds a directory exclusion to Windows Defender

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Drops PE files to the user root directory

Found malware configuration

Injects a PE file into a foreign processes

Machine Learning detection for dropped file

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for dropped file

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 drops PE file

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

Sigma detected: Droppers Exploiting CVE-2017-11882

Sigma detected: EQNEDT32.EXE connecting to internet

Sigma detected: Execution from Suspicious Folder

Sigma detected: File Dropped By EQNEDT32EXE

Sigma detected: Parent in Public Folder Suspicious Process

Sigma detected: Suspicious Add Scheduled Task From User AppData Temp

Sigma detected: Suspicious Program Location with Network Connections

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

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

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)

Uses schtasks.exe or at.exe to add and modify task schedules

Yara detected AntiVM3

Yara detected aPLib compressed binary

Yara detected Lokibot

Behaviour

Behavior Graph:

Download SVG

CERT.PL MWDB lokibot

Detection:

lokibot

Alert

Create hunting rule

Link:

https://mwdb.cert.pl/sample/3781be41d032730640ebea013e01a0aa5cd3a785981bbead9d731ba8076212dc/

ReversingLabs TitaniumCloud Document-Office.Exploit.CVE-2017-11882

Threat name:

Document-Office.Exploit.CVE-2017-11882

Alert

Create hunting rule

Status:

Malicious

First seen:

2022-04-07 07:36:02 UTC

File Type:

Document

Extracted files:

50

AV detection:

20 of 41 (48.78%)

Threat level:

  5/5

Spamhaus Hash Blocklist Suspicious file

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=g6a34qoqgjzqmqhl5iat4anavjonhj4ftan35lm5omn2qb3ccloa._file

Hatching Triage lokibot

Result

Malware family:

lokibot

Alert

Create hunting rule

Score:

  10/10

Tags:

family:lokibot collection spyware stealer suricata trojan

Link:

https://tria.ge/reports/220407-jnpfssaccj/

Behaviour

Checks processor information in registry

Creates scheduled task(s)

Enumerates system info in registry

Launches Equation Editor

Modifies Internet Explorer settings

Modifies registry class

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

Enumerates physical storage devices

Drops file in System32 directory

Suspicious use of SetThreadContext

Accesses Microsoft Outlook profiles

Loads dropped DLL

Uses the VBS compiler for execution

Blocklisted process makes network request

Downloads MZ/PE file

Executes dropped EXE

Lokibot

suricata: ET MALWARE LokiBot Checkin

suricata: ET MALWARE LokiBot User-Agent (Charon/Inferno)

suricata: ET MALWARE MSIL/GenKryptik.FQRH Download Request

suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

Malware Config

C2 Extraction:

http://85.202.169.172/remote/five/fre.php
http://kbfvzoboss.bid/alien/fre.php
http://alphastand.trade/alien/fre.php
http://alphastand.win/alien/fre.php
http://alphastand.top/alien/fre.php

VirusTotal

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

YOROI YOMI Lokibot

Threat name:

Lokibot

Score:

0.90

Link:

https://yomi.yoroi.company/submissions/3781be41d032730640ebea013e01a0aa5cd3a785981bbead9d731ba8076212dc

File information

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

Malspam

Loki

xlsx 3781be41d032730640ebea013e01a0aa5cd3a785981bbead9d731ba8076212dc

(this sample)

  

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/261622/

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