MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 45e5967e8f8153aaa2c7ead299d6a6534e3b3cfa2e9eb183557790a26d1c4b01. 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:	45e5967e8f8153aaa2c7ead299d6a6534e3b3cfa2e9eb183557790a26d1c4b01
SHA3-384 hash:	f72892a94716b71445340ca4950b8472e465863405e3ca03c749e53ac3f9ecbaae07030d83247784d66dfb37fd24ed0b
SHA1 hash:	b36dd13e4c9000c31db28991da8664692f32e643
MD5 hash:	d4f1ab18c1f6bb0077cdea113b98ae5f
humanhash:	salami-uniform-delaware-comet
File name:	Payment_Advice.xlsx
Download:	download sample
Signature	RemcosRAT Alert Create hunting rule
File size:	352'256 bytes
First seen:	2022-04-14 05:42:16 UTC
Last seen:	Never
File type:	xlsx
MIME type:	application/encrypted
ssdeep	6144:Khidm5VXA1pyOPT8dLbcMnSInZS2FJI/rVJKPwrBYtay8VUdZ:jdmY/CdLbciS2FJIHgtgyb
TLSH	T1397412D27826F333DFFA28FA1D150E1525A0DCE81F4AB259ECA53159D43A7012F923B6
Reporter	abuse_ch
Tags:	CVE-2018-0798 RemcosRAT 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	345336 bytes	EncryptedPackage
6	224 bytes	EncryptionInfo

Intelligence

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File Origin

# of uploads :

1

# of downloads :

238

Origin country :

n/a

Vendor Threat Intelligence

ANY.RUN remcos

Malware family:

remcos

Alert

Create hunting rule

ID:

1

File name:

Payment_Advice.xlsx

Verdict:

Malicious activity

Analysis date:

2022-04-14 07:44:45 UTC

Tags:

encrypted trojan opendir exploit CVE-2017-11882 loader rat remcos keylogger

Link:

https://app.any.run/tasks/f66b0c8f-3584-4883-a140-62c8348d8f2a

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/263561/

ClamAV Detected

Detection(s):

PUA.Doc.Packed.EncryptedDoc-6563700-0

Alert

Create hunting rule

Dr. Web vxCube Malware

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a window

Searching for synchronization primitives

Launching a process

Creating a file

Сreating synchronization primitives

Sending an HTTP GET request to an infection source by exploiting the app vulnerability

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/45e5967e8f8153aaa2c7ead299d6a6534e3b3cfa2e9eb183557790a26d1c4b01/results/dashboard

Document image

Image:

Download PNG

FileScan.IO Malicious

Verdict:

Malicious

Threat level:

  10/10

Confidence:

100%

Tags:

embedequation exploit shellcode VelvetSweatshop

Link:

https://www.filescan.io/uploads/6257b46deab80a7a6c102ad7/reports/160b0c48-1fd0-4193-a406-561f9768e5e3/overview

inlyse Malware.AI Malicious

Label:

Malicious

Suspicious Score:

6.8/10

Score Malicious:

68%

Score Benign:

32%

Link:

https://www.malware.ai/gui/files/?id=1c05f0c3-a01a-4f13-a742-87933329e8a9

InQuest MALICIOUS

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/45e5967e8f8153aaa2c7ead299d6a6534e3b3cfa2e9eb183557790a26d1c4b01

Details

Document With No Content

Document contains little or no semantic information.

Joe Sandbox Remcos

Result

Threat name:

Remcos

Alert

Create hunting rule

Detection:

malicious

Classification:

phis.troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/976638

Signature

.NET source code contains potential unpacker

Antivirus detection for URL or domain

Contains functionality to inject code into remote processes

Contains functionality to register a low level keyboard hook

Contains functionality to steal Chrome passwords or cookies

Contains functionality to steal Firefox passwords or cookies

Delayed program exit found

Drops PE files to the user root directory

Injects a PE file into a foreign processes

Installs a global keyboard hook

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 equation editor drops PE file

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

Searches for Windows Mail specific files

Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments

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

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 steal Instant Messenger accounts or passwords

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

Uses dynamic DNS services

Writes to foreign memory regions

Yara detected Remcos RAT

Yara detected WebBrowserPassView password recovery tool

Behaviour

Behavior Graph:

Download SVG

CERT.PL MWDB remcos

Detection:

remcos

Alert

Create hunting rule

Link:

https://mwdb.cert.pl/sample/45e5967e8f8153aaa2c7ead299d6a6534e3b3cfa2e9eb183557790a26d1c4b01/

ReversingLabs TitaniumCloud Document-OLE.Exploit.CVE-2018-0798

Threat name:

Document-OLE.Exploit.CVE-2018-0798

Alert

Create hunting rule

Status:

Malicious

First seen:

2022-04-13 10:54:37 UTC

File Type:

Document

Extracted files:

61

AV detection:

14 of 26 (53.85%)

Threat level:

  5/5

Spamhaus Hash Blocklist Suspicious file

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ixszm7upqfj2viwh5ljjtvvgknhdwph2f2plda2vo6ike3i4jmaq._file

Hatching Triage remcos

Result

Malware family:

remcos

Alert

Create hunting rule

Score:

  10/10

Tags:

family:remcos botnet:sage persistence rat

Link:

https://tria.ge/reports/220414-gekp5sggb3/

Behaviour

Checks processor information in registry

Delays execution with timeout.exe

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

Enumerates physical storage devices

Suspicious use of SetThreadContext

Adds Run key to start application

Loads dropped DLL

Uses the VBS compiler for execution

Blocklisted process makes network request

Downloads MZ/PE file

Executes dropped EXE

Remcos

Malware Config

C2 Extraction:

emarketinglatakva.ddns.net:9794

VMRay Remcos

Malware family:

Remcos

Alert

Create hunting rule

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/45e5967e8f81/report/overview.html

VirusTotal

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

YOROI YOMI Legit

Threat name:

Legit

Score:

0.00

Link:

https://yomi.yoroi.company/submissions/45e5967e8f8153aaa2c7ead299d6a6534e3b3cfa2e9eb183557790a26d1c4b01

File information

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

Malspam

RemcosRAT

xlsx 45e5967e8f8153aaa2c7ead299d6a6534e3b3cfa2e9eb183557790a26d1c4b01

(this sample)

  

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/263561/

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