MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ae8912485487bbd99f7defde38ab0da19ed679c5eec9d0272ec8ea69fc7d191d. 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 2 File information Comments
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SHA256 hash: ae8912485487bbd99f7defde38ab0da19ed679c5eec9d0272ec8ea69fc7d191d
SHA3-384 hash: 11eb627532f0b12f82f4c4bd3536a09eeb71d2de422134a0cc61e9228d6c81a9fc04bfa6e20d125870617310962fd46b
SHA1 hash: c2127b40577e2a59ea0d0dea98f4fa96a77fdd8a
MD5 hash: 3db137b68ac902eaefc048a4d04c89c0
humanhash: social-vermont-ceiling-timing
File name:4086EA3B.doc
Download: download sample
Signature Formbook
Create hunting rule
File size:57'025 bytes
First seen:2023-08-07 10:52:08 UTC
Last seen:Never
File type:Word file doc
MIME type:text/rtf
ssdeep 768:pwAbZSibMX9gRWjIxJDZDFpc9w13oCGj9DeJM4ujBJPlfZS:pwAlRzxNZJpc9wVoCGj9Kmlf4
TLSH T1DE43362DC34F02A9CF565237AA1A1E4442FDBB3EF65512A1305C437933EE83D62652BD
Reporter JAMESWT_WT
Tags:CVE-2017-11882 doc FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
303
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
DEC FORM.docx
Verdict:
Malicious activity
Analysis date:
2023-08-07 10:50:17 UTC
Tags:
exploit cve-2017-11882 formbook xloader stealer spyware
Link:
https://app.any.run/tasks/02309efe-0600-498a-a619-8798dedee5d0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.29015.RtfHeur.Msg.UNOFFICIAL
Create hunting rule

Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Creating a window
Creating a file in the %AppData% directory
Сreating synchronization primitives
Launching cmd.exe command interpreter
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
File Type:
Fake RTF File
Link:
https://app.docguard.net/ae8912485487bbd99f7defde38ab0da19ed679c5eec9d0272ec8ea69fc7d191d/results/dashboard
Behaviour
BlacklistAPI detected
Gathering data
Verdict:
Malicious
Labled as:
CVE-2018-0802
Link:
https://www.hybrid-analysis.com/sample/ae8912485487bbd99f7defde38ab0da19ed679c5eec9d0272ec8ea69fc7d191d
Label:
Malicious
Suspicious Score:
10/10
Score Malicious:
1%
Score Benign:
0%
Link:
https://www.malware.ai/gui/files/?id=e8397a79-ad55-4645-976a-82c3b1115dd9
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/1287036
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
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
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
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
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1287036 Sample: 4086EA3B.doc Startdate: 07/08/2023 Architecture: WINDOWS Score: 100 46 Snort IDS alert for network traffic 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 13 other signatures 2->52 10 EQNEDT32.EXE 11 2->10         started        15 WINWORD.EXE 305 21 2->15         started        17 EQNEDT32.EXE 2->17         started        process3 dnsIp4 44 2.59.254.18, 49179, 80 CMCSUS Germany 10->44 34 C:\Users\user\AppData\...\obioh68951.exe, PE32 10->34 dropped 36 C:\Users\user\AppData\Local\...\obizx[1].exe, PE32 10->36 dropped 72 Office equation editor establishes network connection 10->72 74 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 10->74 19 obioh68951.exe 1 5 10->19         started        file5 signatures6 process7 signatures8 54 Multi AV Scanner detection for dropped file 19->54 56 Tries to detect virtualization through RDTSC time measurements 19->56 58 Injects a PE file into a foreign processes 19->58 22 obioh68951.exe 19->22         started        process9 signatures10 60 Modifies the context of a thread in another process (thread injection) 22->60 62 Maps a DLL or memory area into another process 22->62 64 Sample uses process hollowing technique 22->64 66 Queues an APC in another process (thread injection) 22->66 25 explorer.exe 2 3 22->25 injected process11 dnsIp12 38 www.theroofer.lat 64.190.62.22, 49188, 80 NBS11696US United States 25->38 40 www.izmn2vd8.click 43.154.67.170, 49183, 80 LILLY-ASUS Japan 25->40 42 17 other IPs or domains 25->42 68 System process connects to network (likely due to code injection or exploit) 25->68 70 Uses netstat to query active network connections and open ports 25->70 29 NETSTAT.EXE 25->29         started        signatures13 process14 signatures15 76 Modifies the context of a thread in another process (thread injection) 29->76 78 Maps a DLL or memory area into another process 29->78 80 Tries to detect virtualization through RDTSC time measurements 29->80 32 cmd.exe 29->32         started        process16
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/ae8912485487bbd99f7defde38ab0da19ed679c5eec9d0272ec8ea69fc7d191d/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-08-07 10:49:39 UTC
File Type:
Document
Extracted files:
3
AV detection:
16 of 38 (42.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=v2erescuq655th3557pdrkynugpnm6of53e5ajzozdvgt7d5deoq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/230807-myyzrsgb4x/
Behaviour
Launches Equation Editor
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ae8912485487/report/overview.html
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/ae8912485487bbd99f7defde38ab0da19ed679c5eec9d0272ec8ea69fc7d191d

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_MalVer_Objects
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Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.
Rule name:SUSP_INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embedding one of the object mostly observed in exploit (e.g. CVE-2017-11882) documents.
Reference:https://github.com/ditekshen/detection

File information

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

Web download

Formbook

Word file doc ae8912485487bbd99f7defde38ab0da19ed679c5eec9d0272ec8ea69fc7d191d

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2695769/
  
Delivery method
Distributed via web download

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