MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21440ed93287774fba4db75ff68a5c90cdb52d41109b9976ddcaa94bff9b288f. 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:	21440ed93287774fba4db75ff68a5c90cdb52d41109b9976ddcaa94bff9b288f
SHA3-384 hash:	a94322cdcecd54538496030059e0f48de5d61d8400a47ad5e408eb5bc3aec111fbd0b4016a53910908d01204df1ee89f
SHA1 hash:	ebd152668f7617ca1ba64a3d5baab9a6cac0fc42
MD5 hash:	f2be8593553010231b2c6e4fe8cb03ad
humanhash:	enemy-pip-kentucky-early
File name:	New Contract - WR MAFO.xlsx
Download:	download sample
Signature	Formbook Alert Create hunting rule
File size:	234'760 bytes
First seen:	2021-11-29 09:37:54 UTC
Last seen:	2021-12-06 14:54:07 UTC
File type:	xlsx
MIME type:	application/encrypted
ssdeep	6144:pNCC9sEGoVXLioh7zjeSIjf02DKj2xJYKJcXoRn8O:6mvBioBeSIjf1KgJYKJcXoRn8O
TLSH	T1C1341267B291B9ABEFA94FB4D230574D74DADFD48A8D3EC12A70B148443295343270B7
Reporter	proxylife
Tags:	CVE-2017-11882 FormBook Lokibot 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	228104 bytes	EncryptedPackage
6	224 bytes	EncryptionInfo

Intelligence

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File Origin

# of uploads :

3

# of downloads :

389

Origin country :

n/a

Vendor Threat Intelligence

ANY.RUN Malicious

Malware family:

n/a

ID:

1

File name:

New Contract - WR MAFO.xlsx

Verdict:

Malicious activity

Analysis date:

2021-11-29 09:38:56 UTC

Tags:

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

Link:

https://app.any.run/tasks/caef865e-3755-4cb4-bc10-dbe820f01d10

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

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

DNS request

Creating a window

Searching for synchronization primitives

Launching a process

Creating a file

Сreating synchronization primitives

Creating a file in the %temp% directory

Launching cmd.exe command interpreter

Unauthorized injection to a recently created process

Unauthorized injection to a recently created process by context flags manipulation

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

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 in Encrypted Excel File

Link:

https://app.docguard.net/21440ed93287774fba4db75ff68a5c90cdb52d41109b9976ddcaa94bff9b288f/results/dashboard

Document image

Image:

Download PNG

FileScan.IO Malicious

Verdict:

Malicious

Threat level:

  10/10

Confidence:

100%

Tags:

CVE-2017-11882 embedequation exploit shellcode VelvetSweatshop

Link:

https://www.filescan.io/uploads/61a49f7ceffcae2254f45327/reports/0a13d836-13c6-4d6e-a8c5-859941c04b98/overview

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/897791

Signature

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

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 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: Execution from Suspicious Folder

Sigma detected: File Dropped By EQNEDT32EXE

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

System process connects to network (likely due to code injection or exploit)

Tries to detect virtualization through RDTSC time measurements

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

CERT.PL MWDB xloader

Detection:

xloader

Alert

Create hunting rule

Link:

https://mwdb.cert.pl/sample/21440ed93287774fba4db75ff68a5c90cdb52d41109b9976ddcaa94bff9b288f/

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

Threat name:

Document-Office.Exploit.CVE-2017-11882

Alert

Create hunting rule

Status:

Malicious

First seen:

2021-11-29 01:23:35 UTC

File Type:

Document

Extracted files:

51

AV detection:

16 of 28 (57.14%)

Threat level:

  5/5

Spamhaus Hash Blocklist Suspicious file

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=efca5wjsq53u7osnw5p7ncs4sdg3klkbccnzs5w5zkuux743fchq._file

Hatching Triage xloader

Result

Malware family:

xloader

Alert

Create hunting rule

Score:

  10/10

Tags:

family:xloader campaign:fqiq loader rat suricata

Link:

https://tria.ge/reports/211129-ll2z8abhfq/

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: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

NSIS installer

Enumerates physical storage devices

Suspicious use of SetThreadContext

Loads dropped DLL

Uses the VBS compiler for execution

Blocklisted process makes network request

Downloads MZ/PE file

Executes dropped EXE

Xloader Payload

Xloader

suricata: ET MALWARE FormBook CnC Checkin (GET)

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

Malware Config

C2 Extraction:

http://www.esyscoloradosprings.com/fqiq/

VMRay Malicious

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/21440ed93287/report/overview.html

VirusTotal

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

YOROI YOMI Formbook

Threat name:

Formbook

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/21440ed93287774fba4db75ff68a5c90cdb52d41109b9976ddcaa94bff9b288f

File information

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

No further information available

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