MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7604b60990297c5b6f34db41501c0297dbeac0f303377ccc92c4092579b2c846. 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: 7604b60990297c5b6f34db41501c0297dbeac0f303377ccc92c4092579b2c846
SHA3-384 hash: 963db2137582b3cf1d6430e523d76ab295e93e179b6dc1ab0753e523ef622c70f29175604144a635db21a243f7a18b8e
SHA1 hash: b800887d75f8cfe2f55541e7d201e94e46ca8ab1
MD5 hash: 50dc985e3749a03e19cad19ecf48888e
humanhash: georgia-blue-massachusetts-enemy
File name:50dc985e3749a03e19cad19ecf48888e.rtf
Download: download sample
Signature Formbook
Create hunting rule
File size:51'569 bytes
First seen:2023-08-04 04:52:27 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 768:zwAbZSibMX9gRWj4rOoE3M04JUNWMgQvWx1BuYUdVJ:zwAlR/23KUNWdjrUdVJ
TLSH T1AE33486DD34F0269CF52537B9A2B0A4446FCBB3AF24551A1306C437933EEC2DA1266BD
Reporter abuse_ch
Tags:CVE-2017-11882 FormBook rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
107
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
SCANNED COPY.docx
Verdict:
Malicious activity
Analysis date:
2023-08-03 14:53:13 UTC
Tags:
exploit cve-2017-11882 formbook xloader stealer spyware
Link:
https://app.any.run/tasks/61bfb3ef-5d9b-4521-87d7-faf62260ecfd

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
Create hunting rule

MiscreantPunch.EvilRTF.CommonLure.UNOFFICIAL
Create hunting rule

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Sending a custom TCP request
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/7604b60990297c5b6f34db41501c0297dbeac0f303377ccc92c4092579b2c846/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit packed shellcode
Link:
https://www.filescan.io/uploads/64cc842f539838c2be523f46/reports/6d24931f-503a-4acd-8433-6a20f2ed3ecd/overview
Verdict:
Malicious
Labled as:
CVE-2018-0802
Link:
https://www.hybrid-analysis.com/sample/7604b60990297c5b6f34db41501c0297dbeac0f303377ccc92c4092579b2c846
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/1285545
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
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 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
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: 1285545 Sample: eVG49XaQSt.rtf Startdate: 04/08/2023 Architecture: WINDOWS Score: 100 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 Antivirus detection for URL or domain 2->52 54 13 other signatures 2->54 10 EQNEDT32.EXE 11 2->10         started        15 WINWORD.EXE 336 17 2->15         started        17 EQNEDT32.EXE 2->17         started        process3 dnsIp4 46 2.59.254.18, 49181, 80 CMCSUS Germany 10->46 36 C:\Users\user\AppData\...\obihgj57848.exe, PE32 10->36 dropped 38 C:\Users\user\AppData\Local\...\obizx[1].exe, PE32 10->38 dropped 74 Office equation editor establishes network connection 10->74 76 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 10->76 19 obihgj57848.exe 1 5 10->19         started        file5 signatures6 process7 signatures8 56 Multi AV Scanner detection for dropped file 19->56 58 Machine Learning detection for dropped file 19->58 60 Tries to detect virtualization through RDTSC time measurements 19->60 62 Injects a PE file into a foreign processes 19->62 22 obihgj57848.exe 19->22         started        process9 signatures10 64 Modifies the context of a thread in another process (thread injection) 22->64 66 Maps a DLL or memory area into another process 22->66 68 Sample uses process hollowing technique 22->68 70 Queues an APC in another process (thread injection) 22->70 25 explorer.exe 2 22->25 injected process11 dnsIp12 40 shops.myshopify.com 23.227.38.74, 49183, 80 CLOUDFLARENETUS Canada 25->40 42 www.boswells.biz 199.59.243.224, 49182, 80 BODIS-NJUS United States 25->42 44 2 other IPs or domains 25->44 72 System process connects to network (likely due to code injection or exploit) 25->72 29 wscript.exe 25->29         started        32 autofmt.exe 25->32         started        signatures13 process14 signatures15 78 Modifies the context of a thread in another process (thread injection) 29->78 80 Maps a DLL or memory area into another process 29->80 82 Tries to detect virtualization through RDTSC time measurements 29->82 34 cmd.exe 29->34         started        process16
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7604b60990297c5b6f34db41501c0297dbeac0f303377ccc92c4092579b2c846/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-08-03 15:49:05 UTC
File Type:
Document
Extracted files:
3
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=oyclmcmqff6fw3zu3navahacs7n6vqhtam3xztesyqesk6nszbda._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:oy30 rat spyware stealer trojan
Link:
https://tria.ge/reports/230804-fhy69shf43/
Behaviour
Launches Equation Editor
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Formbook payload
Formbook
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/7604b60990297c5b6f34db41501c0297dbeac0f303377ccc92c4092579b2c846

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
Create hunting rule
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

Rich Text Format (RTF) rtf 7604b60990297c5b6f34db41501c0297dbeac0f303377ccc92c4092579b2c846

(this sample)

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

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