MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6eaef969b84860514d4fe3fdc448e2bb3d8ec071b19ad3cb8fce053cf0925bc8. 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: 6


Intelligence 6 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6eaef969b84860514d4fe3fdc448e2bb3d8ec071b19ad3cb8fce053cf0925bc8
SHA3-384 hash: 5d621b149a3d6774f45a331fd7207dd1ae00555f62d5863fa4039ca3013dfa943ad9231c12d937d21ea8d7c780ef6434
SHA1 hash: 8de1df1395e5d60f1a53afe4ee687d74d8cd4d35
MD5 hash: 139496b536b3c780e843c657dc3b5f4f
humanhash: monkey-sixteen-delaware-michigan
File name:6eaef969b84860514d4fe3fdc448e2bb3d8ec071b19ad3cb8fce053cf0925bc8_t_invoice_341241.doc
Download: download sample
Signature Formbook
Create hunting rule
File size:9'890 bytes
First seen:2020-09-25 18:42:15 UTC
Last seen:Never
File type:Word file doc
MIME type:text/rtf
ssdeep 192:xxpoQ7DJDztlck6aSTiDY7EC+zEeYFvzqrGkFMlzdVVXsPpLZlBZ0O0:xxpoQ7JzP+t+hRzIF+8dTsxLZlBO7
TLSH 32125CE886492837FE0948FECC11FE64071AF56A60D7A1993B9DEBA33FA70104F70548
Reporter FORMALITYDE
Tags:CVE-2017-11882 FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
130
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

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
DNS request
Creating a file in the %AppData% directory
Launching the process to change network settings
Launching cmd.exe command interpreter
Deleting a system 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.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/475477
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates an undocumented autostart registry key
Detected FormBook malware
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: File Dropped By EQNEDT32EXE
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 290192 Sample: F0Ycm433jS.doc Startdate: 25/09/2020 Architecture: WINDOWS Score: 100 56 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Antivirus detection for dropped file 2->60 62 12 other signatures 2->62 10 EQNEDT32.EXE 12 2->10         started        15 WINWORD.EXE 336 18 2->15         started        17 EQNEDT32.EXE 2->17         started        process3 dnsIp4 54 visuawsdyorganizationforyoungbraine23gls.duckdns.org 103.141.138.127, 49167, 80 VNPT-AS-VNVIETNAMPOSTSANDTELECOMMUNICATIONSGROUPVN Viet Nam 10->54 40 C:\Users\user\AppData\Roaming\vbc.exe, PE32 10->40 dropped 42 C:\Users\user\AppData\Local\...\win32[1].exe, PE32 10->42 dropped 82 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 10->82 19 vbc.exe 10->19         started        file5 signatures6 process7 signatures8 64 Antivirus detection for dropped file 19->64 66 Multi AV Scanner detection for dropped file 19->66 68 Machine Learning detection for dropped file 19->68 70 2 other signatures 19->70 22 RegAsm.exe 19->22         started        process9 signatures10 72 Modifies the context of a thread in another process (thread injection) 22->72 74 Maps a DLL or memory area into another process 22->74 76 Sample uses process hollowing technique 22->76 78 2 other signatures 22->78 25 explorer.exe 22->25 injected process11 dnsIp12 48 viviechnatimes.com 103.228.112.39, 49169, 49170, 80 NEXTRA-INNEXTRATELESERVICESPVTLTDIN India 25->48 50 stevenleath.com 34.102.136.180, 49168, 80 GOOGLEUS United States 25->50 52 2 other IPs or domains 25->52 80 System process connects to network (likely due to code injection or exploit) 25->80 29 mstsc.exe 1 14 25->29         started        signatures13 process14 file15 44 C:\Users\user\AppData\...\5--logrv.ini, data 29->44 dropped 46 C:\Users\user\AppData\...\5--logri.ini, data 29->46 dropped 84 Detected FormBook malware 29->84 86 Creates an undocumented autostart registry key 29->86 88 Tries to steal Mail credentials (via file access) 29->88 90 5 other signatures 29->90 33 firefox.exe 1 29->33         started        36 cmd.exe 29->36         started        signatures16 process17 file18 38 C:\Users\user\AppData\...\5--logrf.ini, data 33->38 dropped
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6eaef969b84860514d4fe3fdc448e2bb3d8ec071b19ad3cb8fce053cf0925bc8/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2020-09-25 18:44:05 UTC
AV detection:
13 of 29 (44.83%)
Threat level:
  5/5
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat persistence spyware trojan stealer family:formbook
Link:
https://tria.ge/reports/200925-ytfbwft6lx/
Behaviour
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
Launches Equation Editor
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Office loads VBA resources, possible macro or embedded object present
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Reads user/profile data of web browsers
Uses the VBS compiler for execution
Blacklisted process makes network request
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.wemco.info/vnc/
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/6eaef969b84860514d4fe3fdc448e2bb3d8ec071b19ad3cb8fce053cf0925bc8

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 6eaef969b84860514d4fe3fdc448e2bb3d8ec071b19ad3cb8fce053cf0925bc8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/611693/
  
Delivery method
Distributed via web download

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