MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 49eae141b85b2dee809a1e86df1518d2d32a79367cf1a01f55f98c98d32f59ce. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 49eae141b85b2dee809a1e86df1518d2d32a79367cf1a01f55f98c98d32f59ce
SHA3-384 hash: ff86d11f5ff3bcd4e55d4a81b5417727f1e4299b40a588acba0a9e0a077f8a33553e756040dba760024bd34a91b17ce0
SHA1 hash: 8b73d2e1bf47b9150706d3fbfad2878447e750bf
MD5 hash: 7ebb7f9239d5dea3e17fd9b51f12c5a7
humanhash: cat-mango-mars-stairway
File name:MOQ010524Purchase order.doc
Download: download sample
Signature Formbook
Create hunting rule
File size:199'141 bytes
First seen:2024-05-02 06:25:02 UTC
Last seen:2024-05-26 11:35:44 UTC
File type:Word file doc
MIME type:text/rtf
ssdeep 3072:ywAlawAlawAlawAlawAl4iCVKOHLH6CjD4ITLw:ywAYwAYwAYwAYwACiCVnHzJA
TLSH T10614CF6DD34B02698F620337AB171E5141BDBA7EF38552B1306C537933EAC39A1252BE
Reporter cocaman
Tags:CVE-2017-11882 DHL doc FormBook INVOICE payment


Avatar
cocaman
Malicious email (T1566.001)
From: "Purchasing Department <albo@albomfgcorp.us>" (likely spoofed)
Received: "from rdns0.albomfgcorp.us (albomfgcorp.us [8.39.147.39]) "
Date: "20 May 2024 21:49:03 -0700"
Subject: "RE: Invoice #458278QAC balance payment receipt"
Attachment: "ref458278QAC remittance.doc"

Intelligence

File Origin
# of uploads :
14
# of downloads :
357
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
49eae141b85b2dee809a1e86df1518d2d32a79367cf1a01f55f98c98d32f59ce.doc
Verdict:
Malicious activity
Analysis date:
2024-05-02 06:28:49 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/644fcb3c-fb9c-4490-9789-fff2763e6291

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
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

TwinWave.EvilDoc.RoomService.20230808.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Using the Windows Management Instrumentation requests
Creating a window
Connection attempt to an infection source by exploiting the app vulnerability
Creating a file in the %AppData% directory
Сreating synchronization primitives
Creating a file
Launching a service
Query of malicious DNS domain
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
Sending a TCP request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/49eae141b85b2dee809a1e86df1518d2d32a79367cf1a01f55f98c98d32f59ce/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/663331c3874e85cc56654562/reports/f5d1ec9c-a07d-4b0a-9e7e-9963acdab47f/overview
Verdict:
Malicious
Labled as:
CVE-2018-0798
Link:
https://www.hybrid-analysis.com/sample/49eae141b85b2dee809a1e86df1518d2d32a79367cf1a01f55f98c98d32f59ce
Gathering data
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1435172
Signature
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
Document exploit detected (process start blacklist hit)
Drops PE files with a suspicious file extension
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Installs new ROOT certificates
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
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)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Equation Editor Network Connection
Sigma detected: Suspicious Microsoft Office Child Process
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1435172 Sample: MOQ010524Purchase order.doc Startdate: 02/05/2024 Architecture: WINDOWS Score: 100 47 www.exclaimer342200213.net 2->47 49 exclaimer342200213.net 2->49 75 Snort IDS alert for network traffic 2->75 77 Multi AV Scanner detection for domain / URL 2->77 79 Malicious sample detected (through community Yara rule) 2->79 81 13 other signatures 2->81 12 WINWORD.EXE 336 14 2->12         started        signatures3 process4 process5 14 EQNEDT32.EXE 11 12->14         started        19 EQNEDT32.EXE 12->19         started        dnsIp6 57 universalmovies.top 104.21.74.191, 443, 49163 CLOUDFLARENETUS United States 14->57 41 C:\Users\user\AppData\Roaming\op55336.scr, PE32 14->41 dropped 43 C:\Users\user\AppData\Local\...\opp[1].scr, PE32 14->43 dropped 61 Installs new ROOT certificates 14->61 63 Office equation editor establishes network connection 14->63 65 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 14->65 21 op55336.scr 2 14->21         started        file7 signatures8 process9 signatures10 87 Machine Learning detection for dropped file 21->87 89 Injects a PE file into a foreign processes 21->89 24 op55336.scr 21->24         started        process11 signatures12 91 Maps a DLL or memory area into another process 24->91 27 eDTvjJMLUGCaWhgZ.exe 24->27 injected process13 signatures14 93 Maps a DLL or memory area into another process 27->93 95 Found direct / indirect Syscall (likely to bypass EDR) 27->95 30 dfrgui.exe 1 20 27->30         started        process15 dnsIp16 59 www.sqlite.org 45.33.6.223, 49165, 80 LINODE-APLinodeLLCUS United States 30->59 45 C:\Users\user\AppData\Local\...\sqlite3.dll, PE32 30->45 dropped 67 Tries to steal Mail credentials (via file / registry access) 30->67 69 Tries to harvest and steal browser information (history, passwords, etc) 30->69 71 Maps a DLL or memory area into another process 30->71 73 Queues an APC in another process (thread injection) 30->73 35 eDTvjJMLUGCaWhgZ.exe 30->35 injected 39 firefox.exe 30->39         started        file17 signatures18 process19 dnsIp20 51 www.99b6q.xyz 35->51 53 www.touchclean.top 67.223.117.189, 49186, 49187, 49188 VIMRO-AS15189US United States 35->53 55 17 other IPs or domains 35->55 83 Found direct / indirect Syscall (likely to bypass EDR) 35->83 signatures21 85 Performs DNS queries to domains with low reputation 51->85
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/49eae141b85b2dee809a1e86df1518d2d32a79367cf1a01f55f98c98d32f59ce
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/49eae141b85b2dee809a1e86df1518d2d32a79367cf1a01f55f98c98d32f59ce/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-05-02 06:25:06 UTC
File Type:
Document
Extracted files:
3
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jhvocqnylmw65ae2d2dn6fiy2ljsu6jwpty2ah2v7ggjruzplhha._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Link:
https://tria.ge/reports/240502-g6l3aadd82/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Suspicious use of SetThreadContext
Process spawned suspicious child process
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Process spawned unexpected child process
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/49eae141b85b/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/49eae141b85b2dee809a1e86df1518d2d32a79367cf1a01f55f98c98d32f59ce

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_EXPLOIT_CVE_2017_11882_4
Create hunting rule
Author:ditekSHen
Description:detects RTF variant documents potentially exploiting CVE-2018-0802 or CVE-2017-11882
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.

Malspam

Formbook

zip 2c4916153238d858b1a8722f8fe6c6d6462f1721e9b963f2c87ea3b7cbdad15e

Formbook

Word file doc 49eae141b85b2dee809a1e86df1518d2d32a79367cf1a01f55f98c98d32f59ce

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 2c4916153238d858b1a8722f8fe6c6d6462f1721e9b963f2c87ea3b7cbdad15e
  
Dropped by
SHA256 58a8574d138a7821c903a96e3b65b88c58bdb8cde83376f73a7272ea03826ab0
  
Dropped by
SHA256 fc00199b1dbd357977319b8bc50f064f0e4f6db735d12e1a45e4c179ae200858
  
Dropping
Formbook
  
Dropped by
MD5 ca2b25b2a9076f7a8daa9c16415352e3
  
Dropped by
MD5 c61a0e739f4afe0f80c07a3e3e62edfe
  
Dropped by
MD5 713002af1f5c46201fdbbf04ae4cbdbc

Comments