MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e2dde83360d72f5c0bccc2ee660730a7975ad1afb68688feadfbb7c89c253651. 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


Formbook


Vendor detections: 11


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e2dde83360d72f5c0bccc2ee660730a7975ad1afb68688feadfbb7c89c253651
SHA3-384 hash: 8d06be6b9c828b1398e931719566ac151db4e85d6c0bf499b444f1f9ff39b455f49f29631b26a7044b14c86b31ffd83a
SHA1 hash: ba45703172ec49c13b78b148b0ff4bd9705d314b
MD5 hash: 4f2dedd5116872d6b9c948110fd0935d
humanhash: cardinal-butter-william-winter
File name:Purchasing List 0202021.doc
Download: download sample
Signature Formbook
Create hunting rule
File size:7'728 bytes
First seen:2021-02-01 07:28:13 UTC
Last seen:Never
File type:Word file doc
MIME type:text/rtf
ssdeep 96:cECMT86hZgwRveuBsZMsRObF02qGX9zBfOER5idQssJ5/fc9lWSJj3TnSDPaRQPS:hCOJRxs6FbG2qGNNfO45iuT42DPCklW
TLSH 60F15C66BB647230C5EC52E46E3BB9C4A409B8F602D779C934CD86B31F63517EBA2448
Reporter abuse_ch
Tags:doc FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: email-biz.com
Sending IP: 106.75.76.18
From: International Purchase<sales@email-biz.com>
Reply-To: covestone@yahoo.com
Subject: Best Price
Attachment: Purchasing List 0202021.doc

Intelligence

File Origin
# of uploads :
1
# of downloads :
98
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchasing List 0202021.doc
Verdict:
Malicious activity
Analysis date:
2021-02-01 07:36:35 UTC
Tags:
trojan exploit CVE-2017-11882 loader formbook stealer
Link:
https://app.any.run/tasks/8c2f9f50-6d4e-4235-8ee5-328d8972e50b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
DNS request
Creating a file
Launching the process to change network settings
Launching cmd.exe command interpreter
Deleting a recently created file
Sending an HTTP GET request
Launching a file downloaded from the Internet
Unauthorized injection to a recently created process
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
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/e2dde83360d72f5c0bccc2ee660730a7975ad1afb68688feadfbb7c89c253651/results/dashboard
Result
Verdict:
MALICIOUS
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/594999
Signature
Contains functionality to inject code into remote processes
Detected unpacking (changes PE section rights)
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)
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: Executables Started in Suspicious Folder
Sigma detected: Execution in Non-Executable Folder
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Suspicious Program Location Process Starts
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
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 346543 Sample: Purchasing List 0202021.doc Startdate: 01/02/2021 Architecture: WINDOWS Score: 100 37 yazaerik.com 2->37 39 www1669099.com 2->39 41 15 other IPs or domains 2->41 59 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->59 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 12 other signatures 2->65 11 EQNEDT32.EXE 12 2->11         started        16 WINWORD.EXE 291 23 2->16         started        signatures3 process4 dnsIp5 49 ubernormal.com 185.104.45.46, 49165, 80 UKRAINE-ASUA Ukraine 11->49 33 C:\Users\user\AppData\Local\...\l[1].exe, PE32 11->33 dropped 35 C:\Users\Public\vbc.exe, PE32 11->35 dropped 83 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 11->83 18 vbc.exe 11->18         started        file6 signatures7 process8 signatures9 51 Multi AV Scanner detection for dropped file 18->51 53 Detected unpacking (changes PE section rights) 18->53 55 Machine Learning detection for dropped file 18->55 57 3 other signatures 18->57 21 vbc.exe 18->21         started        process10 signatures11 67 Modifies the context of a thread in another process (thread injection) 21->67 69 Maps a DLL or memory area into another process 21->69 71 Sample uses process hollowing technique 21->71 73 Queues an APC in another process (thread injection) 21->73 24 explorer.exe 21->24 injected process12 dnsIp13 43 montserratpages.cat 81.88.52.100, 49169, 49181, 49193 REGISTER-ASIT Italy 24->43 45 www.fxwlk.com 23.104.48.60, 49166, 49178, 49190 LEASEWEB-USA-LAX-11US United States 24->45 47 6 other IPs or domains 24->47 75 System process connects to network (likely due to code injection or exploit) 24->75 28 NAPSTAT.EXE 24->28         started        signatures14 process15 signatures16 77 Modifies the context of a thread in another process (thread injection) 28->77 79 Maps a DLL or memory area into another process 28->79 81 Tries to detect virtualization through RDTSC time measurements 28->81 31 cmd.exe 28->31         started        process17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e2dde83360d72f5c0bccc2ee660730a7975ad1afb68688feadfbb7c89c253651/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2021-02-01 02:28:54 UTC
AV detection:
20 of 46 (43.48%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4lo6qm3a24xvyc6mylxgmbzqu6lvvunpw2dir7vn7o34rhbfgziq._file
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader loader rat spyware stealer trojan
Link:
https://tria.ge/reports/210201-6ewhx7vzaj/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
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
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Suspicious use of SetThreadContext
Loads dropped DLL
Uses the VBS compiler for execution
Blocklisted process makes network request
Executes dropped EXE
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.douzhuan168.com/o8na/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/e2dde83360d72f5c0bccc2ee660730a7975ad1afb68688feadfbb7c89c253651

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:INDICATOR_RTF_EXPLOIT_CVE_2017_11882_4
Create hunting rule
Author:ditekSHen
Description:detects RTF variant documents potentially exploiting CVE-2018-0802 or CVE-2017-11882
Rule name:INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.

File information

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

Malspam

Formbook

Word file doc e2dde83360d72f5c0bccc2ee660730a7975ad1afb68688feadfbb7c89c253651

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments