MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 af0ad92c81842deb70edc599988a44950e79a146fa014e36077b139e6bc82e8a. 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:	af0ad92c81842deb70edc599988a44950e79a146fa014e36077b139e6bc82e8a
SHA3-384 hash:	3515051f2ae27b8098b108244e4006cbb5e156cc5c5a58532dba56196f67e37f029cfaea991c50676022747c755fd869
SHA1 hash:	1096faa4a6449678cfee04c90f12626d9b60bf89
MD5 hash:	ad41031b3648dea03db051ad6bebaacc
humanhash:	moon-alanine-beer-winner
File name:	Pricelist April 2022.xlsx
Download:	download sample
Signature	Formbook Alert Create hunting rule
File size:	1'462'940 bytes
First seen:	2022-04-16 20:04:00 UTC
Last seen:	Never
File type:	xlsx
MIME type:	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep	24576:kaR8d5EoW9PrsC2nT175sh7sTgqz3wfEAOxn+Uvvp55tR6JcSp5engnfXbAm3Fh:zW5EoWR12nT1NeYTgqTWOfvpH6JNQofF
TLSH	T1B96533D92E3775ACDE810A385E546EC9A94001270B1B145CA8BAE0F2FD7F4FD34B7989
TrID	60.1% (.XLSX) Excel Microsoft Office Open XML Format document (34000/1/7) 30.9% (.ZIP) Open Packaging Conventions container (17500/1/4) 7.0% (.ZIP) ZIP compressed archive (4000/1) 1.7% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter	cocaman
Tags:	CVE-2017-11882 FormBook xlsx

cocaman

Malicious email (T1566.001)
From: "Royal <royal@kginternational.com>" (likely spoofed)
Received: "from kginternational.com (unknown [193.56.29.132]) "
Date: "15 Apr 2022 10:58:12 -0700"
Subject: "KG Pricelist APRIL 2022"
Attachment: "Pricelist April 2022.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

MalwareBazaar was able to identify 3 sections in this file using oledump:

Section ID	Section size	Section name
A1	1732736 bytes	Ole10Native
A2	0 bytes	8fe

Intelligence

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File Origin

# of uploads :

1

# of downloads :

538

Origin country :

n/a

Vendor Threat Intelligence

ANY.RUN formbook

Malware family:

formbook

Alert

Create hunting rule

ID:

1

File name:

Pricelist April 2022.xlsx

Verdict:

Malicious activity

Analysis date:

2022-04-16 20:06:28 UTC

Tags:

trojan exploit CVE-2017-11882 loader formbook stealer

Link:

https://app.any.run/tasks/fd963d72-c0a7-4f08-bd61-cd9c8189fe32

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/264127/

ClamAV Detected

Detection(s):

SecuriteInfo.com.Malware.XML.Autoload-1.UNOFFICIAL

Alert

Create hunting rule

TwinWave.EvilDoc.EQEditorFBShellzLetMeBlowYourMind.20210218.UNOFFICIAL

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

DNS request

Creating a file in the %AppData% directory

Creating a file in the %temp% directory

Сreating synchronization primitives

Launching cmd.exe command interpreter

Sending an HTTP GET request

Unauthorized injection to a recently created process by context flags manipulation

Creating a process from a recently created file

Unauthorized injection to a system process

DocGuard Malicious

Result

Verdict:

Malicious

File Type:

OOXML Excel File with Embedding Objects

Link:

https://app.docguard.net/af0ad92c81842deb70edc599988a44950e79a146fa014e36077b139e6bc82e8a/results/dashboard

FileScan.IO Malicious

Verdict:

Malicious

Threat level:

  10/10

Confidence:

100%

Tags:

CVE-2017-11882 embedequation exploit shellcode

Link:

https://www.filescan.io/uploads/625b2133ffe27d5119eaae28/reports/2d070493-5779-438b-aaa4-7cb00f9fe986/overview

inlyse Malware.AI Malicious

Label:

Malicious

Suspicious Score:

9.8/10

Score Malicious:

99%

Score Benign:

1%

Link:

https://www.malware.ai/gui/files/?id=5ca7c588-94eb-4e26-8502-a54b9c6ece98

Joe Sandbox FormBook

Result

Threat name:

FormBook

Alert

Create hunting rule

Detection:

malicious

Classification:

troj.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/977731

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)

Found malware configuration

Injects a PE file into a foreign processes

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Maps a DLL or memory area into another process

Modifies the context of a thread in another process (thread injection)

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)

Queues an APC in another process (thread injection)

Sample uses process hollowing technique

Sigma detected: Droppers Exploiting CVE-2017-11882

Sigma detected: EQNEDT32.EXE connecting to internet

Sigma detected: Equation Editor Network Connection

Sigma detected: File Dropped By EQNEDT32EXE

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

Tries to detect virtualization through RDTSC time measurements

Uses netstat to query active network connections and open ports

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

CERT.PL MWDB

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/af0ad92c81842deb70edc599988a44950e79a146fa014e36077b139e6bc82e8a/

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

Threat name:

Document-Office.Exploit.CVE-2017-11882

Alert

Create hunting rule

Status:

Malicious

First seen:

2022-04-16 00:57:05 UTC

File Type:

Document

Extracted files:

16

AV detection:

16 of 26 (61.54%)

Threat level:

  5/5

Hatching Triage formbook

Result

Malware family:

formbook

Alert

Create hunting rule

Score:

  10/10

Tags:

family:formbook campaign:nk6l rat spyware stealer trojan

Link:

https://tria.ge/reports/220416-ys9d4aagh7/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Launches Equation Editor

Modifies Internet Explorer settings

Modifies registry class

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Suspicious use of SetThreadContext

Loads dropped DLL

Blocklisted process makes network request

Downloads MZ/PE file

Executes dropped EXE

Formbook Payload

Formbook

VirusTotal

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

YOROI YOMI Suspicious File

Threat name:

Suspicious File

Score:

0.60

Link:

https://yomi.yoroi.company/submissions/af0ad92c81842deb70edc599988a44950e79a146fa014e36077b139e6bc82e8a

File information

---

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

Malspam

Formbook

xlsx af0ad92c81842deb70edc599988a44950e79a146fa014e36077b139e6bc82e8a

(this sample)

  

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/264127/

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