MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b34c09bf9e0459b2a09c73eb3f1c43d87861c64bbbbe26e59bfc243ef589f720. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments
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SHA256 hash: b34c09bf9e0459b2a09c73eb3f1c43d87861c64bbbbe26e59bfc243ef589f720
SHA3-384 hash: b6a5ce48cd4d4e9aba6cc5b6aaaa6ebd17f589bd439ae814eaa0eafeb0904b1e01ac28896fc4b28e958f1c0d272543a7
SHA1 hash: 836ff26907fc87551205ccf178b1f4bc7a3486df
MD5 hash: 8323328ee54a8d0afd9e421a556a57b7
humanhash: east-burger-gee-summer
File name:SHEXD2101127S_ShippingDocument_DkD.xlsx
Download: download sample
Signature Formbook
Create hunting rule
File size:1'638'361 bytes
First seen:2021-01-18 16:08:10 UTC
Last seen:2021-01-18 18:24:25 UTC
File type:Excel file xlsx
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 49152:V5YVp7hb3CdHNfMZtRNxRNUB4f4cAtDl+59u0SX0f:2J2N0RBNUFb+59uRXk
TLSH 6E75337B84251284DB03B7335C87888DEEA91B688457F3C9D01F399A39817F26D676F8
Reporter Anonymous
Tags:FormBook xlsx

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 dump

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

Section IDSection sizeSection name
A11440302 bytesOLe10nAtivE
A220 bytesOle

Intelligence

File Origin
# of uploads :
2
# of downloads :
129
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SHEXD2101127S_ShippingDocument_DkD.xlsx
Verdict:
Malicious activity
Analysis date:
2021-01-18 16:10:20 UTC
Tags:
opendir exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/b9edfa17-874c-40da-8764-399bd11f343b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
TwinWave.EvilDoc.EQAndMisCasedOleNativeWasTheCaseThatTheyGaveMe.20200215.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
DNS request
Creating a file
Launching cmd.exe command interpreter
Deleting a recently created file
Launching a file downloaded from the Internet
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
Result
Verdict:
MALICIOUS
Details
Macro Execution Coercion
Detected a document that appears to social engineer the user into activating embedded logic.
Document With No Content
Document contains little or no semantic information.
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/583969
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Binary contains a suspicious time stamp
Drops PE files to the user root directory
Found malware configuration
Injects a PE file into a foreign processes
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
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
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 341022 Sample: SHEXD2101127S_ShippingDocum... Startdate: 18/01/2021 Architecture: WINDOWS Score: 100 39 www.e-butchery.com 2->39 41 e-butchery.com 2->41 57 Multi AV Scanner detection for domain / URL 2->57 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 16 other signatures 2->63 11 EQNEDT32.EXE 12 2->11         started        16 EXCEL.EXE 37 13 2->16         started        signatures3 process4 dnsIp5 49 ibgreenstdykegheedst.dns.navy 103.125.191.182, 49167, 80 VNPT-AS-VNVIETNAMPOSTSANDTELECOMMUNICATIONSGROUPVN Viet Nam 11->49 33 C:\Users\user\AppData\Local\...\regasm[1].exe, PE32 11->33 dropped 35 C:\Users\Public\vbc.exe, PE32 11->35 dropped 81 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 11->81 18 vbc.exe 1 5 11->18         started        37 ~$SHEXD2101127S_Sh...ngDocument_DkD.xlsx, data 16->37 dropped file6 signatures7 process8 signatures9 51 Multi AV Scanner detection for dropped file 18->51 53 Tries to detect virtualization through RDTSC time measurements 18->53 55 Injects a PE file into a foreign processes 18->55 21 vbc.exe 18->21         started        process10 signatures11 65 Modifies the context of a thread in another process (thread injection) 21->65 67 Maps a DLL or memory area into another process 21->67 69 Sample uses process hollowing technique 21->69 71 Queues an APC in another process (thread injection) 21->71 24 explorer.exe 21->24 injected process12 dnsIp13 43 www.zindaginews.com 154.91.53.47, 49168, 80 VPSQUANUS Seychelles 24->43 45 www.stonescapes1.com 192.187.111.221, 49169, 80 NOCIXUS United States 24->45 47 7 other IPs or domains 24->47 73 System process connects to network (likely due to code injection or exploit) 24->73 28 systray.exe 24->28         started        signatures14 process15 signatures16 75 Modifies the context of a thread in another process (thread injection) 28->75 77 Maps a DLL or memory area into another process 28->77 79 Tries to detect virtualization through RDTSC time measurements 28->79 31 cmd.exe 28->31         started        process17
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b34c09bf9e0459b2a09c73eb3f1c43d87861c64bbbbe26e59bfc243ef589f720/
Threat name:
Win32.Exploit.CVE-2017-11882
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Status:
Malicious
First seen:
2021-01-18 16:09:06 UTC
AV detection:
20 of 46 (43.48%)
Threat level:
  5/5
Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:formbook family:xloader loader rat spyware stealer trojan
Link:
https://tria.ge/reports/210118-cg42mzbra6/
Behaviour
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
Checks processor information in registry
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.stonescapes1.com/de92/
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/b34c09bf9e0459b2a09c73eb3f1c43d87861c64bbbbe26e59bfc243ef589f720

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
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Author:James_inthe_box
Description:Email in files like avemaria
Rule name:IPPort_combo_mem
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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
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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.

Comments