MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1ec8b22f4a970d74ba70a9271499a038c9edaa54ce022b38107e0e21dbddddf0. 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

Threat unknown

Vendor detections: 6

Maldoc score: 13

Intelligence 6 IOCs YARA 5 File information Comments

SHA256 hash:	1ec8b22f4a970d74ba70a9271499a038c9edaa54ce022b38107e0e21dbddddf0
SHA3-384 hash:	e6a369d1df68b5db2ce510c7f66a69e020fe2f082553f8ac2ad51b38830fdee422a2573445ce71c26fcb1c0e3ceb3e8f
SHA1 hash:	8a243c08aadb04f1e93615d7ce5dce36b3dc1ea4
MD5 hash:	9bfb900a48ba7f7ccf67998a4f7eae81
humanhash:	violet-fruit-angel-jig
File name:	c7.xlsm
Download:	download sample
File size:	399'988 bytes
First seen:	2020-11-06 07:00:34 UTC
Last seen:	2020-11-06 08:43:29 UTC
File type:	xlsm
MIME type:	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep	12288:EYeFTHhUvVobTgNh4154M3yuTX8Jr3XqpEiVD53F:ERjZQ41abYMJTapjT
TLSH	ED84121AF671E58CED4750B0DAE42EE5236CCE13D0EA3EA6D533A3CC7A1936211114EE
Reporter	abuse_ch
Tags:	xlsm Yahoo

abuse_ch

Malspam distributing unidentified malware:

HELO: sonic311-30.consmr.mail.ir2.yahoo.com
Sending IP: 77.238.176.162
From: Rose Maduna <rose@purequestair.co.za>
Subject: Quote (Treat as urgent)
Attachment: c7.xlsm

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: 13

OLE dump

MalwareBazaar was able to identify 11 sections in this file using oledump:

Section ID	Section size	Section name
A1	4 bytes	PROJECT
A2	2 bytes	PROJECTwm
A3	1 bytes	VBA/Sheet1
A4	1 bytes	VBA/ThisWorkbook
A5	2 bytes	VBA/_VBA_PROJECT
A6	8 bytes	VBA/__SRP_0
A7	5 bytes	VBA/__SRP_1
A8	1 bytes	VBA/__SRP_2
A9	8 bytes	VBA/__SRP_3
A10	5 bytes	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
AutoExec	Workbook_Open	Runs when the Excel Workbook is opened
Hex String	50eAP	3530654150
Hex String	Create	437265617465
Suspicious	ShowWindow	May hide the application
Suspicious	CreateObject	May create an OLE object
Suspicious	Chr	May attempt to obfuscate specific strings (use option --deobf to deobfuscate)
Suspicious	Create	May execute file or a system command through
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 :

Origin country :

n/a

Vendor Threat Intelligence

Detection(s):

SecuriteInfo.com.BehavesLike.Downloader.fc.976.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Using the Windows Management Instrumentation requests

Creating a process with a hidden window

DNS request

Sending a custom TCP request

Creating a file in the %temp% directory

Creating a process from a recently created file

Creating a file

Sending an HTTP GET request

Deleting a recently created file

Bypassing of proactive protection methods using Windows Management Instrumentation (WMI)

Launching a process by exploiting the app vulnerability

Result

Verdict:

MALICIOUS

Details

Macro with Startup Hook

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

Macro Execution Coercion

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

Macro Contains Suspicious String

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

InQuest Machine Learning

An InQuest machine-learning model classified this macro as potentially malicious.

Document With No Content

Document contains little or no semantic information.

Result

Threat name:

Unknown

Detection:

malicious

Classification:

troj.evad

Score:

96 / 100

Link:

https://www.joesandbox.com/analysis/522150

Signature

Creates processes via WMI

Document contains an embedded VBA macro which may execute processes

Document contains an embedded VBA with base64 encoded strings

Document contains an embedded VBA with hexadecimal encoded strings

Document contains an embedded VBA with many randomly named variables

Machine Learning detection for sample

May check the online IP address of the machine

Multi AV Scanner detection for submitted file

Obfuscated command line found

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

Powershell drops PE file

Suspicious powershell command line found

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/1ec8b22f4a970d74ba70a9271499a038c9edaa54ce022b38107e0e21dbddddf0/

Threat name:

Script-Macro.Trojan.Heuristic

Status:

Malicious

First seen:

2020-11-05 11:32:00 UTC

AV detection:

8 of 48 (16.67%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=d3elel2ks4gxjotqvetrjgnahde63ksuzybcwoaqpyhcdw653xya._file

Result

Malware family:

n/a

Score:

10/10

Tags:

n/a

Link:

https://tria.ge/reports/201106-cfqb97zjgn/

Behaviour

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Checks processor information in registry

Office loads VBA resources, possible macro or embedded object present

Drops file in System32 directory

JavaScript code in executable

Looks up external IP address via web service

Loads dropped DLL

Blacklisted process makes network request

Executes dropped EXE

Process spawned unexpected child process

Malware Config

Dropper Extraction:

https://u.teknik.io/l1f09.txt

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

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:	IPPort_combo_mem Create hunting rule
Author:	James_inthe_box
Description:	IP and port combo

Rule name:	Select_from_enumeration Create hunting rule
Author:	James_inthe_box
Description:	IP and port combo

Rule name:	SharedStrings Create hunting rule
Author:	Katie Kleemola
Description:	Internal names found in LURK0/CCTV0 samples

Rule name:	UAC_bypass_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	UAC bypass in files like avemaria

File information

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

Malspam

xlsm 1ec8b22f4a970d74ba70a9271499a038c9edaa54ce022b38107e0e21dbddddf0

(this sample)

Delivery method

Distributed via e-mail attachment

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