MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1ccd3e2580b4e0de27bfeae3a92d638230c573704c66a06a0e11018224d176a0. 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: 13


Maldoc score: 4


Intelligence 13 IOCs YARA 3 File information Comments

SHA256 hash: 1ccd3e2580b4e0de27bfeae3a92d638230c573704c66a06a0e11018224d176a0
SHA3-384 hash: 765c6fd4915babf08093c212a0fb94c8d660d4c95927674cb89aac6e70366b48efb785968a2af70068eb6d3528e87d32
SHA1 hash: 4eb87b3825da0d23d7f7091c2976e1e95cc40907
MD5 hash: 65ae45789b58f1e03a4f8c3f178e6b30
humanhash: saturn-white-black-salami
File name:QUO684506.xls
Download: download sample
Signature Formbook
File size:430'080 bytes
First seen:2024-05-14 07:18:14 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 6144:NZ+RwPONXoRjDhIcp0fDlavx+W26nAHu8uniSHBMixiMK6G+ZFrTUvCp4sJgpQMD:31iQpozwjTqCfgdhd/+Z4uCz2BFmDiP
TLSH T12C94F1257B468B2BE85647710DE746962661FD10DF538A0F328CF32E3DB23A0DE63616
TrID 46.5% (.XLS) Microsoft Excel sheet (alternate) (56500/1/4)
26.7% (.XLS) Microsoft Excel sheet (32500/1/3)
20.1% (.XLS) Microsoft Excel sheet (alternate) (24500/1/2)
6.5% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter abuse_ch
Tags:FormBook xls

Office OLE Information


This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE id
Maldoc score: 4
OLE dump

MalwareBazaar was able to identify 22 sections in this file using oledump:

Section IDSection sizeSection name
1114 bytesCompObj
2244 bytesDocumentSummaryInformation
3200 bytesSummaryInformation
4114 bytesMBD002B7845/CompObj
5264 bytesMBD002B7845/DocumentSummaryInformation
621636 bytesMBD002B7845/SummaryInformation
721747 bytesMBD002B7845/Workbook
894 bytesMBD002B7846/CompObj
962 bytesMBD002B7846/Ole
1020909 bytesMBD002B7846/CONTENTS
1199 bytesMBD002B7847/CompObj
12186863 bytesMBD002B7847/Package
13578 bytesMBD002B7848/Ole
14158408 bytesWorkbook
15519 bytes_VBA_PROJECT_CUR/PROJECT
16104 bytes_VBA_PROJECT_CUR/PROJECTwm
17977 bytes_VBA_PROJECT_CUR/VBA/Sheet1
18977 bytes_VBA_PROJECT_CUR/VBA/Sheet2
19977 bytes_VBA_PROJECT_CUR/VBA/Sheet3
20985 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
212644 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
22553 bytes_VBA_PROJECT_CUR/VBA/dir
OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

TypeKeywordDescription
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence


File Origin
# of uploads :
1
# of downloads :
319
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1ccd3e2580b4e0de27bfeae3a92d638230c573704c66a06a0e11018224d176a0.xls
Verdict:
Malicious activity
Analysis date:
2024-05-14 07:34:31 UTC
Tags:
maldoc phishing phishing-xls

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/vnd.ms-excel
Has a screenshot:
False
Contains macros:
False
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Using the Windows Management Instrumentation requests
Creating a window
DNS request
Sending an HTTP GET request
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Creating a file
Connection attempt
Sending a custom TCP request
Creating a file in the %AppData% directory
Connection attempt by exploiting the app vulnerability
Sending a custom TCP request by exploiting the app vulnerability
Launching a process by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Payload URLs
URL
File name
http://dokdo.in/OyJ
Embedded Ole
Behaviour
BlacklistAPI detected
Document image
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit form macros shellcode
Gathering data
Result
Verdict:
MALICIOUS
Details
Document With Few Pages
Document contains between one and three pages of content. Most malicious documents are sparse in page count.
Result
Threat name:
FormBook, PureLog Stealer
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to hide windows to a different desktop
Document exploit detected (process start blacklist hit)
Excel sheet contains many unusual embedded objects
Found direct / indirect Syscall (likely to bypass EDR)
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
Microsoft Office drops suspicious files
Microsoft Office launches external ms-search protocol handler (WebDAV)
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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)
Office viewer loads remote template
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Equation Editor Network Connection
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Suspicious Binary In User Directory Spawned From Office Application
Sigma detected: Suspicious Microsoft Office Child Process
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected MalDoc
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1441065 Sample: QUO684506.xls Startdate: 14/05/2024 Architecture: WINDOWS Score: 100 63 dokdo.in 2->63 75 Snort IDS alert for network traffic 2->75 77 Multi AV Scanner detection for domain / URL 2->77 79 Found malware configuration 2->79 81 22 other signatures 2->81 11 EXCEL.EXE 34 49 2->11         started        signatures3 process4 dnsIp5 69 dokdo.in 104.21.71.191, 443, 49165, 49166 CLOUDFLARENETUS United States 11->69 71 23.94.36.162, 49167, 49177, 49178 AS-COLOCROSSINGUS United States 11->71 53 C:\Users\user\...\~DF50952790E9F126E7.TMP, Composite 11->53 dropped 55 everythinggoingfin...eautiuflgirl[1].doc, ISO-8859 11->55 dropped 15 vnc.exe 2 11->15         started        18 WINWORD.EXE 337 37 11->18         started        22 AcroRd32.exe 28 11->22         started        file6 process7 dnsIp8 103 Multi AV Scanner detection for dropped file 15->103 105 Machine Learning detection for dropped file 15->105 107 Tries to detect virtualization through RDTSC time measurements 15->107 109 Injects a PE file into a foreign processes 15->109 24 vnc.exe 15->24         started        65 dokdo.in 18->65 67 172.67.148.22, 443, 49171, 49172 CLOUDFLARENETUS United States 18->67 41 C:\Users\user\AppData\...\dokdo.in.url, MS 18->41 dropped 43 C:\Users\user\AppData\Roaming\...\OyJ.url, MS 18->43 dropped 45 ~WRF{568978B5-F108...D-D6A7A446CA61}.tmp, Composite 18->45 dropped 47 C:\Users\user\AppData\Local\...03451E2.doc, ISO-8859 18->47 dropped 111 Microsoft Office launches external ms-search protocol handler (WebDAV) 18->111 113 Office viewer loads remote template 18->113 115 Microsoft Office drops suspicious files 18->115 27 EQNEDT32.EXE 12 18->27         started        30 RdrCEF.exe 2 22->30         started        file9 signatures10 process11 file12 91 Modifies the context of a thread in another process (thread injection) 24->91 93 Maps a DLL or memory area into another process 24->93 95 Sample uses process hollowing technique 24->95 101 2 other signatures 24->101 32 explorer.exe 4 24->32 injected 49 C:\Users\user\AppData\Roaming\vnc.exe, PE32 27->49 dropped 51 C:\Users\user\AppData\Local\...\vnc[1].exe, PE32 27->51 dropped 97 Office equation editor establishes network connection 27->97 99 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 27->99 signatures13 process14 dnsIp15 57 www.zshoessale.com 32->57 59 www.sam2.site 32->59 61 4 other IPs or domains 32->61 73 System process connects to network (likely due to code injection or exploit) 32->73 36 wininit.exe 32->36         started        signatures16 process17 signatures18 83 Modifies the context of a thread in another process (thread injection) 36->83 85 Contains functionality to hide windows to a different desktop 36->85 87 Maps a DLL or memory area into another process 36->87 89 Tries to detect virtualization through RDTSC time measurements 36->89 39 cmd.exe 36->39         started        process19
Threat name:
Win32.Trojan.Generic
Status:
Malicious
First seen:
2024-05-13 07:04:52 UTC
File Type:
Document
Extracted files:
48
AV detection:
14 of 38 (36.84%)
Threat level:
  2/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:ht3d rat spyware stealer trojan
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 AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Office loads VBA resources, possible macro or embedded object present
Suspicious use of SetThreadContext
Abuses OpenXML format to download file from external location
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.

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:informational_win_ole_protected
Author:Jeff White (karttoon@gmail.com) @noottrak
Description:Identify OLE Project protection within documents.
Rule name:maldoc_OLE_file_magic_number
Author:Didier Stevens (https://DidierStevens.com)
Rule name:office_document_vba
Author:Jean-Philippe Teissier / @Jipe_
Description:Office document with embedded VBA
Reference:https://github.com/jipegit/

File information


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

Comments