MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 783867d6ddaf440467fd8c722ffe88dc878dde0b7db525427d0d2420083d0a13. 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


Loki


Vendor detections: 7


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

SHA256 hash: 783867d6ddaf440467fd8c722ffe88dc878dde0b7db525427d0d2420083d0a13
SHA3-384 hash: 3171918f5b89f7de5bc63ccdfc111ef08827b19b9dfa8dea773f5f0a022e38f92d6f8fb717122a34eb43edaddb7cf9ac
SHA1 hash: f01f07d388ac1851eb1ceebd7caa5dcef5d4debb
MD5 hash: b7c40dbf84d15729f26db8c4eb326e33
humanhash: seventeen-triple-kentucky-hamper
File name:SecuriteInfo.com.Exploit.Rtf.Obfuscated.16.4886.18852
Download: download sample
Signature Loki
Create hunting rule
File size:11'219 bytes
First seen:2020-09-25 10:47:24 UTC
Last seen:2020-09-25 11:41:45 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 192:GbngvF0lKVTifKkU7uvaIrpyZ8eu0tG0b1qp6rodyawQpEcent6uxw7qjWYqn:GcvF0lKIiHiva4ney0bscUyUEJXw7qjA
TLSH DA328D581F28795AF24F051B0B52BC79022DF87589C689E53ADCF2B17F365C18FA2A09
Reporter SecuriteInfoCom
Tags:CVE-2017-11882 Loki

Intelligence

File Origin
# of uploads :
2
# of downloads :
94
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Exploit.Rtf.Obfuscated.16.4886.18852.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 in the %AppData% directory
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
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
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/475015
Signature
Antivirus detection for dropped file
Contains functionality to detect sleep reduction / modifications
Creates an undocumented autostart registry key
Detected FormBook malware
Detected unpacking (changes PE section rights)
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
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
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 289959 Sample: SecuriteInfo.com.Exploit.Rt... Startdate: 25/09/2020 Architecture: WINDOWS Score: 100 49 www.templo.online 2->49 59 Malicious sample detected (through community Yara rule) 2->59 61 Antivirus detection for dropped file 2->61 63 Multi AV Scanner detection for dropped file 2->63 65 10 other signatures 2->65 11 EQNEDT32.EXE 12 2->11         started        16 WINWORD.EXE 336 18 2->16         started        18 EQNEDT32.EXE 2->18         started        signatures3 process4 dnsIp5 57 wsdyunitedfrkesokoriorimistreetsm59vbq.duckdns.org 103.141.138.122, 49167, 80 VNPT-AS-VNVIETNAMPOSTSANDTELECOMMUNICATIONSGROUPVN Viet Nam 11->57 41 C:\Users\user\AppData\Roaming\vbc.exe, PE32 11->41 dropped 43 C:\Users\user\AppData\Local\...\vbc[1].exe, PE32 11->43 dropped 85 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 11->85 20 vbc.exe 11->20         started        file6 signatures7 process8 signatures9 67 Antivirus detection for dropped file 20->67 69 Multi AV Scanner detection for dropped file 20->69 71 Detected unpacking (changes PE section rights) 20->71 73 4 other signatures 20->73 23 vbc.exe 20->23         started        process10 signatures11 75 Modifies the context of a thread in another process (thread injection) 23->75 77 Maps a DLL or memory area into another process 23->77 79 Sample uses process hollowing technique 23->79 81 Queues an APC in another process (thread injection) 23->81 26 explorer.exe 23->26 injected process12 dnsIp13 51 chrserv.com 160.153.136.3, 49168, 80 GODADDY-AMSDE United States 26->51 53 www.templo.online 26->53 55 2 other IPs or domains 26->55 83 System process connects to network (likely due to code injection or exploit) 26->83 30 mstsc.exe 1 14 26->30         started        signatures14 process15 file16 45 C:\Users\user\AppData\...\2N1logrv.ini, data 30->45 dropped 47 C:\Users\user\AppData\...\2N1logri.ini, data 30->47 dropped 87 Detected FormBook malware 30->87 89 Creates an undocumented autostart registry key 30->89 91 Tries to steal Mail credentials (via file access) 30->91 93 5 other signatures 30->93 34 firefox.exe 1 30->34         started        37 cmd.exe 30->37         started        signatures17 process18 file19 39 C:\Users\user\AppData\...\2N1logrf.ini, data 34->39 dropped
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/783867d6ddaf440467fd8c722ffe88dc878dde0b7db525427d0d2420083d0a13/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2020-09-25 08:55:13 UTC
AV detection:
14 of 29 (48.28%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pa4gpvw5v5caiz75rrzc77ui3sdy3xqlpw2skqt5buscacb5bijq._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook persistence
Link:
https://tria.ge/reports/200925-m19pjkzehx/
Behaviour
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
Enumerates system info in registry
Office loads VBA resources, possible macro or embedded object present
Drops file in Program Files directory
Suspicious use of SetThreadContext
Loads dropped DLL
Reads user/profile data of web browsers
Uses the VBS compiler for execution
Adds policy Run key to start application
Blacklisted process makes network request
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.glamotd.com/pth/
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/783867d6ddaf440467fd8c722ffe88dc878dde0b7db525427d0d2420083d0a13

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.

Web download

Loki

Rich Text Format (RTF) rtf 783867d6ddaf440467fd8c722ffe88dc878dde0b7db525427d0d2420083d0a13

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/611482/
  
Delivery method
Distributed via web download

Comments