MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c6232f818d7c848dee9a6a653df75e0174e38362ff2e5f6040c5e7418af5f219. 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: 7


Intelligence 7 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c6232f818d7c848dee9a6a653df75e0174e38362ff2e5f6040c5e7418af5f219
SHA3-384 hash: 7a3c4bfb57bc82d80b8c092a602b96578e27763ea03aa54c615bca7594cbbc0a789815394da52cf11c020b54fd88adeb
SHA1 hash: b232ce9f70d3f483487eb5b0665a69463016d136
MD5 hash: f3d861146c64468ef9f58dfbc3cf59a5
humanhash: princess-video-neptune-quiet
File name:f3d861146c64468ef9f58dfbc3cf59a5.doc
Download: download sample
Signature Formbook
Create hunting rule
File size:788'065 bytes
First seen:2020-10-01 10:53:27 UTC
Last seen:Never
File type:Word file doc
MIME type:text/rtf
ssdeep 12288:ppQAbpQAbpQAbpQAbpQAbpQAbpQAbpQAbpQAbpQAbpQAbpQAbpQAbpQAbpQAbpQP:fHHHHHHHHHHHHHHHHHHHHHHHHdpdwZ
TLSH ECF47BBD7331A9F971079A0ADE5A084673D7EFE369F04B16B03DE3317F65282A580426
Reporter abuse_ch
Tags:CVE-2017-11882 doc FormBook


Avatar
abuse_ch
FormBook payload URL:
http://94.140.114.135/1/cyber.jpg

Intelligence

File Origin
# of uploads :
1
# of downloads :
124
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.27301.RtfHeur.BadVer.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.FakeRTF-2.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.2017-0199.Obfus.170830.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.2017-0199.Obfus.171711.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
DNS request
Creating a file
Launching cmd.exe command interpreter
Deleting a recently created file
Setting browser functions hooks
Sending an HTTP GET request
Launching a file downloaded from the Internet
Creating a process from a recently created file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/479229
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Connects to a URL shortener service
Downloads files with wrong headers with respect to MIME Content-Type
Drops PE files to the user root directory
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)
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 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 signatures2 2 Behavior Graph ID: 292056 Sample: ciblBqrnQ8.doc Startdate: 01/10/2020 Architecture: WINDOWS Score: 100 50 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Antivirus detection for dropped file 2->54 56 16 other signatures 2->56 9 EQNEDT32.EXE 13 2->9         started        14 WINWORD.EXE 291 24 2->14         started        process3 dnsIp4 38 94.140.114.135, 49166, 80 NANO-ASLV Latvia 9->38 40 bit.ly 67.199.248.10, 49165, 80 GOOGLE-PRIVATE-CLOUDUS United States 9->40 28 C:\Users\user\AppData\Local\...\cyber[1].jpg, PE32 9->28 dropped 30 C:\Users\Public\908.exe, PE32 9->30 dropped 66 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 9->66 16 908.exe 9->16         started        file5 signatures6 process7 signatures8 42 Antivirus detection for dropped file 16->42 44 Multi AV Scanner detection for dropped file 16->44 46 Machine Learning detection for dropped file 16->46 48 5 other signatures 16->48 19 explorer.exe 16->19 injected process9 dnsIp10 32 shops.myshopify.com 23.227.38.64, 49169, 80 CLOUDFLARENETUS Canada 19->32 34 www.daisywobzr.rest 5.101.152.115, 49168, 80 BEGET-ASRU Russian Federation 19->34 36 3 other IPs or domains 19->36 58 System process connects to network (likely due to code injection or exploit) 19->58 23 cscript.exe 19->23         started        signatures11 process12 signatures13 60 Modifies the context of a thread in another process (thread injection) 23->60 62 Maps a DLL or memory area into another process 23->62 64 Tries to detect virtualization through RDTSC time measurements 23->64 26 cmd.exe 23->26         started        process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c6232f818d7c848dee9a6a653df75e0174e38362ff2e5f6040c5e7418af5f219/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2020-10-01 10:55:05 UTC
AV detection:
15 of 47 (31.91%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yyrs7amnpsci33u2njst3526af2oha3c74xf6ycayxtudcxv6imq._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/201001-wl3ftx9naa/
Behaviour
Launches Equation Editor
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
Enumerates system info in registry
Office loads VBA resources, possible macro or embedded object present
Suspicious use of SetThreadContext
Loads dropped DLL
Blacklisted process makes network request
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://d�wR��}��QvWV4�����%k!XtqU��1\ �
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/c6232f818d7c848dee9a6a653df75e0174e38362ff2e5f6040c5e7418af5f219

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:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples

File information

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

Formbook

Word file doc c6232f818d7c848dee9a6a653df75e0174e38362ff2e5f6040c5e7418af5f219

(this sample)

FormBook

Executable exe 9107a8988792e1ec695a1d662a6b0f7668a6fbfb6352897c1f5bfe85addf2994

  
URLhaus
https://urlhaus.abuse.ch/url/634747/
  
Dropping
SHA256 9107a8988792e1ec695a1d662a6b0f7668a6fbfb6352897c1f5bfe85addf2994
  
Dropping
MD5 7579e33ff9a14044b7692be83adc73b7

Comments