MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 674438d0168395de85602e28d05d00250a4b512eadc5d0dca552504034f78d0a. 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: 14


Intelligence 14 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 674438d0168395de85602e28d05d00250a4b512eadc5d0dca552504034f78d0a
SHA3-384 hash: 0e94ed062e7a9812df5785be63f0f3e3d589a2f4333c7903ecd180c90ce243f5e91ab3d1386d99bf52d3fcc8e24ad846
SHA1 hash: f454b5533082d56f64b2165991f25cd52c1567f6
MD5 hash: eee73794507c84f85df00d9a15ebad95
humanhash: beryllium-football-harry-oklahoma
File name:PI-0998778.xlsx
Download: download sample
Signature Formbook
Create hunting rule
File size:112'128 bytes
First seen:2022-08-01 13:03:58 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/encrypted
ssdeep 1536:tlJTmn0SGd+EJzzlQz4/2f2f1VukklWnMfps5m4jki5QZj1Uvh2zDHbR:tjk0fd1zWI1VukkEnMutc2vEDHb
TLSH T124B3E060B6875AE9F436463E4D8E5F7C81A47EC24D19A6333683B7ABFC35C2146D2B40
Reporter JAMESWT_WT
Tags:cve-2017-0199 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
Detection: VelvetSweatshop

MalwareBazaar was able to identify 6 sections in this file using oledump:

Section IDSection sizeSection name
164 bytesDataSpaces/DataSpaceInfo/StrongEncryptionDataSpace
2112 bytesDataSpaces/DataSpaceMap
3208 bytesDataSpaces/TransformInfo/StrongEncryptionTransform/Primary
476 bytesDataSpaces/Version
5107448 bytesEncryptedPackage
6224 bytesEncryptionInfo

Intelligence

File Origin
# of uploads :
1
# of downloads :
291
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
SPAM.zip
Verdict:
Malicious activity
Analysis date:
2022-08-01 13:04:45 UTC
Tags:
trojan opendir exploit CVE-2017-11882 loader encrypted formbook stealer
Link:
https://app.any.run/tasks/622fdd69-41d0-4dc3-abaa-ed6336c58542

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Has a screenshot:
False
Contains macros:
False
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/295588/
Detection(s):
PUA.Doc.Packed.EncryptedDoc-6563700-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Creating a window
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Creating a file
Sending an HTTP GET request
Launching a process by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Embedding Objects in Encrypted Excel File
Link:
https://app.docguard.net/674438d0168395de85602e28d05d00250a4b512eadc5d0dca552504034f78d0a/results/dashboard
Payload URLs
URL
File name
http://104.168.32.38/doc_office/office.docx?&ounce=imperfect&energy=sedate&hugger=light&patio=hungry&spade=reflective&contract=secretive&sewer
oleObject1.bin
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
CVE-2017-0199 VelvetSweatshop
Link:
https://www.filescan.io/uploads/62e7cfc4bcf76fcb6cd84430/reports/a8dfd681-7364-4ba6-ad1a-f037a1cddbd7/overview
Label:
Malicious
Suspicious Score:
8.0/10
Score Malicious:
8%
Score Benign:
2%
Link:
https://www.malware.ai/gui/files/?id=1ac533a2-ed58-497c-a884-037efbbde391
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/674438d0168395de85602e28d05d00250a4b512eadc5d0dca552504034f78d0a
Details
Document With No Content
Document contains little or no semantic information.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1044174
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Drops PE files to the user root directory
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 establishes network connection
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
Shellcode detected
Sigma detected: File Dropped By EQNEDT32EXE
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 676668 Sample: PI-0998778.xlsx Startdate: 01/08/2022 Architecture: WINDOWS Score: 100 52 Malicious sample detected (through community Yara rule) 2->52 54 Antivirus detection for dropped file 2->54 56 Multi AV Scanner detection for dropped file 2->56 58 12 other signatures 2->58 9 EQNEDT32.EXE 12 2->9         started        13 WINWORD.EXE 63 40 2->13         started        15 EXCEL.EXE 34 48 2->15         started        process3 dnsIp4 38 C:\Users\user\AppData\Local\...\vbc[1].exe, PE32 9->38 dropped 40 C:\Users\Public\vbc.exe, PE32 9->40 dropped 76 Office equation editor establishes network connection 9->76 78 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 9->78 18 vbc.exe 3 9->18         started        42 ~WRF{A8F91ADF-34F0...E-4F39AB16A630}.tmp, Composite 13->42 dropped 44 C:\Users\user\AppData\Local\...\B44963C7.doc, data 13->44 dropped 46 C:\Users\user\AppData\Local\...\60[1].doc, data 13->46 dropped 50 104.168.32.38, 49171, 49172, 49173 AS-COLOCROSSINGUS United States 15->50 48 C:\Users\user\Desktop\~$PI-0998778.xlsx, data 15->48 dropped file5 signatures6 process7 file8 34 C:\Users\user\AppData\...\qEggUVSmROjcLY.exe, PE32 18->34 dropped 36 C:\Users\user\AppData\Local\...\tmp487F.tmp, XML 18->36 dropped 60 Multi AV Scanner detection for dropped file 18->60 62 Machine Learning detection for dropped file 18->62 64 Uses schtasks.exe or at.exe to add and modify task schedules 18->64 66 2 other signatures 18->66 22 vbc.exe 18->22         started        25 powershell.exe 6 18->25         started        27 schtasks.exe 18->27         started        signatures9 process10 signatures11 68 Modifies the context of a thread in another process (thread injection) 22->68 70 Maps a DLL or memory area into another process 22->70 72 Sample uses process hollowing technique 22->72 74 Queues an APC in another process (thread injection) 22->74 29 explorer.exe 22->29 injected process12 process13 31 mstsc.exe 29->31         started        signatures14 80 Modifies the context of a thread in another process (thread injection) 31->80 82 Maps a DLL or memory area into another process 31->82
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/674438d0168395de85602e28d05d00250a4b512eadc5d0dca552504034f78d0a/
Threat name:
Document-Office.Exploit.CVE-2017-0199
Create hunting rule
Status:
Malicious
First seen:
2022-08-01 07:03:27 UTC
File Type:
Document
Extracted files:
35
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=m5cdruawqok55blafyunaxiaeufewujovxc5bxffkjieanhxrufa._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/220801-qaykwahfcl/
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Creates scheduled task(s)
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
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of SetThreadContext
Abuses OpenXML format to download file from external location
Checks computer location settings
Loads dropped DLL
Uses the VBS compiler for execution
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/674438d01683/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/674438d0168395de85602e28d05d00250a4b512eadc5d0dca552504034f78d0a

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/295588/

Comments