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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4bb6fcd2077fab4abe6012089f2bffbee52b0cc5b69ccc2b5e250672bee25be. 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: d4bb6fcd2077fab4abe6012089f2bffbee52b0cc5b69ccc2b5e250672bee25be
SHA3-384 hash: f63ef1ed7a3f260ba8baf81024f2158d50c847f4c72125159e29661bd94285f33060e282d94ba4752f6c201ccd9d563e
SHA1 hash: df9ae618023a951ebacb254ec51ac1306c87cc73
MD5 hash: 2eb01e0a87e7c2c842bce6d75f34e083
humanhash: steak-georgia-yankee-emma
File name:Transferencia SPEI.xls
Download: download sample
Signature Formbook
File size:1'136'640 bytes
First seen:2024-11-20 15:49:03 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 24576:/uq9PLiijE2Z5Z2amC/gY/tMJE8F84LJQohy5bLFqQEbG1jcu:/uEPLiij7Z5ZK0g8tMpFjLJQohy5VqLQ
TLSH T1D1352305FCC8DF4BD6A7993204E3C0F22518BCD2BE6896451661F36E387D9F21B8395A
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)
Magika xls
Reporter abuse_ch
Tags:cve-2017-0199 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 15 sections in this file using oledump:

Section IDSection sizeSection name
1114 bytesCompObj
2244 bytesDocumentSummaryInformation
3200 bytesSummaryInformation
499 bytesMBD001F96C3/CompObj
5781881 bytesMBD001F96C3/Package
6458 bytesMBD001F96C4/Ole
7330973 bytesWorkbook
8523 bytes_VBA_PROJECT_CUR/PROJECT
9104 bytes_VBA_PROJECT_CUR/PROJECTwm
10977 bytes_VBA_PROJECT_CUR/VBA/Sheet1
11977 bytes_VBA_PROJECT_CUR/VBA/Sheet2
12977 bytes_VBA_PROJECT_CUR/VBA/Sheet3
13985 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
142644 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
15553 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 :
479
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Transferencia SPEI.xls
Verdict:
No threats detected
Analysis date:
2024-11-20 15:54:09 UTC
Tags:
n/a

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
Verdict:
Malicious
Score:
92.5%
Tags:
shellcode trojan sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Using the Windows Management Instrumentation requests
Creating a window
Connection attempt to an infection source by exploiting the app vulnerability
DNS request
Sending an HTTP GET request
Сreating synchronization primitives
Query of malicious DNS domain
Connection attempt by exploiting the app vulnerability
Sending a TCP request to an infection source by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Payload URLs
URL
File name
https://provit.uk/01acYO?&oven=robust&gray=poised&sourwood=defeated&eyelashes=energetic&study=fanatical&hot
Embedded Ole
Behaviour
SuspiciousRTF detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
macros powershell
Label:
Benign
Suspicious Score:
2.1/10
Score Malicious:
21%
Score Benign:
79%
Result
Threat name:
FormBook, HTMLPhisher
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Binary is likely a compiled AutoIt script file
Document exploit detected (process start blacklist hit)
Excel sheet contains many unusual embedded objects
Installs new ROOT certificates
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
Microsoft Office drops suspicious files
Multi AV Scanner detection for submitted file
PowerShell case anomaly found
Powershell drops PE file
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: File With Uncommon Extension Created By An Office Application
Sigma detected: Suspicious Microsoft Office Child Process
Sigma detected: Suspicious MSHTA Child Process
Sigma detected: Suspicious PowerShell Parameter Substring
Suricata IDS alerts for network traffic
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
Writes to foreign memory regions
Yara detected FormBook
Yara detected HtmlPhish44
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1559534 Sample: Transferencia SPEI.xls Startdate: 20/11/2024 Architecture: WINDOWS Score: 100 62 Suricata IDS alerts for network traffic 2->62 64 Antivirus detection for dropped file 2->64 66 Antivirus / Scanner detection for submitted sample 2->66 68 13 other signatures 2->68 9 EXCEL.EXE 57 51 2->9         started        process3 dnsIp4 52 107.173.4.61, 49162, 49164, 49165 AS-COLOCROSSINGUS United States 9->52 54 provit.uk 198.244.140.41, 443, 49161, 49163 RIDLEYSD-NETUS United States 9->54 44 C:\Users\...\Transferencia SPEI.xls (copy), Composite 9->44 dropped 46 C:\Users\user\...\~DF2DBD20A751B00898.TMP, Composite 9->46 dropped 48 generatethebstgood...orldwithgood[1].hta, HTML 9->48 dropped 82 Microsoft Office drops suspicious files 9->82 14 mshta.exe 10 9->14         started        18 mshta.exe 9 9->18         started        20 AcroRd32.exe 21 9->20         started        file5 signatures6 process7 dnsIp8 56 provit.uk 14->56 84 Suspicious powershell command line found 14->84 86 PowerShell case anomaly found 14->86 22 powershell.exe 23 14->22         started        58 192.168.2.255, 137, 138 unknown unknown 18->58 60 provit.uk 18->60 signatures9 process10 file11 38 C:\Users\user\AppData\Roaming\winnit.exe, PE32 22->38 dropped 40 C:\Users\user\AppData\Local\...\winnit[1].exe, PE32 22->40 dropped 42 C:\Users\user\AppData\...\sxs00da5.cmdline, Unicode 22->42 dropped 70 Powershell drops PE file 22->70 26 winnit.exe 2 22->26         started        29 powershell.exe 4 22->29         started        31 csc.exe 2 22->31         started        signatures12 process13 file14 72 Binary is likely a compiled AutoIt script file 26->72 74 Machine Learning detection for dropped file 26->74 76 Writes to foreign memory regions 26->76 80 2 other signatures 26->80 34 svchost.exe 26->34         started        78 Installs new ROOT certificates 29->78 50 C:\Users\user\AppData\Local\...\sxs00da5.dll, PE32 31->50 dropped 36 cvtres.exe 31->36         started        signatures15 process16
Threat name:
Win32.Exploit.CVE-2017-0199
Status:
Malicious
First seen:
2024-11-20 11:30:03 UTC
File Type:
Document
Extracted files:
96
AV detection:
10 of 38 (26.32%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
defense_evasion discovery execution
Behaviour
Checks processor information in registry
Enumerates system info in registry
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
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
System Location Discovery: System Language Discovery
AutoIT Executable
Drops file in System32 directory
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Evasion via Device Credential Deployment
Process spawned unexpected child process
Malware Family:
n/a
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
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:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:XLS_STRINGS
Author:somedieyoungZZ
Description:Detect Strings targeting Bangladesh

File information


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

Comments