MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 78d04244289fe215008b2c7d8937813b740228e5b60092287346e66e29c8182d. 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: 8
| SHA256 hash: | 78d04244289fe215008b2c7d8937813b740228e5b60092287346e66e29c8182d |
|---|---|
| SHA3-384 hash: | 8444a2f6670436b6f9c64bc4ff54741108df7e9b28bbb70ae13fd48d796f2f5b53328224b08ba4ae34c5590e94657a24 |
| SHA1 hash: | 3682d9bb93f77602331e0faa13534d89dce7549b |
| MD5 hash: | 5116f60729db73f6140f715f13046970 |
| humanhash: | video-thirteen-quiet-jersey |
| File name: | EFT $27,150 Receipt Confirmation.xls |
| Download: | download sample |
| Signature | Formbook |
| File size: | 33'280 bytes |
| First seen: | 2022-09-13 06:13:03 UTC |
| Last seen: | Never |
| File type: |  xls |
| MIME type: | application/vnd.ms-excel |
| ssdeep | 768:bgk3hOdsylKlgxopeiBNhZFGzE+cL2kdAJdOxfb9:Uk3hOdsylKlgxopeiBNhZFGzE+cL2kdp |
| TLSH | T112E24CA2B3D6D906D98507764CE7C6D62727FC915FA3834B328AF71E1F71A808903617 |
| 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: 8 |
OLE dump
MalwareBazaar was able to identify 14 sections in this file using oledump:
| Section ID | Section size | Section name |
|---|---|---|
| 1 | 107 bytes | CompObj |
| 2 | 244 bytes | DocumentSummaryInformation |
| 3 | 216 bytes | SummaryInformation |
| 4 | 16915 bytes | Workbook |
| 5 | 412 bytes | _VBA_PROJECT_CUR/PROJECT |
| 6 | 59 bytes | _VBA_PROJECT_CUR/PROJECTwm |
| 7 | 1329 bytes | _VBA_PROJECT_CUR/VBA/ThisWorkbook |
| 8 | 2787 bytes | _VBA_PROJECT_CUR/VBA/UrKir |
| 9 | 2874 bytes | _VBA_PROJECT_CUR/VBA/_VBA_PROJECT |
| 10 | 1293 bytes | _VBA_PROJECT_CUR/VBA/__SRP_0 |
| 11 | 177 bytes | _VBA_PROJECT_CUR/VBA/__SRP_1 |
| 12 | 352 bytes | _VBA_PROJECT_CUR/VBA/__SRP_2 |
| 13 | 264 bytes | _VBA_PROJECT_CUR/VBA/__SRP_3 |
| 14 | 523 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:
| Type | Keyword | Description |
|---|---|---|
| AutoExec | Workbook_Activate | Runs when the Excel Workbook is opened |
| AutoExec | Worksheet_Change | Runs when the file is opened and ActiveX objects trigger events |
| Suspicious | CreateObject | May create an OLE object |
| Suspicious | Hex Strings | Hex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all) |
| Suspicious | Base64 Strings | Base64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all) |
Intelligence
File Origin
# of uploads :
1
# of downloads :
235
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
EFT $27,150 Receipt Confirmation.xls
Verdict:
Malicious activity
Analysis date:
2022-09-13 06:26:44 UTC
Tags:
macros macros-on-open maldoc-20
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/vnd.ms-excel
Has a screenshot:
False
Contains macros:
True
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Sending a custom TCP request
Creating a window
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
DNS request
Creating a file in the %temp% directory
Creating a process from a recently created file
Bypassing of proactive protection methods using Windows Management Instrumentation (WMI)
Launching a process by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Behaviour
BlacklistAPI detected
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
anti-vm macros macros-on-open
Label:
Malicious
Suspicious Score:
8.0/10
Score Malicious:
81%
Score Benign:
19%
Result
Verdict:
MALICIOUS
Link:
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Document With Minimal Content
Document contains less than 1 kilobyte of semantic information.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates processes via WMI
Document contains an embedded VBA macro which may execute processes
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Multi AV Scanner detection for submitted file
Powershell drops PE file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses netstat to query active network connections and open ports
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
Script.Trojan.Woreflint
Status:
Malicious
First seen:
2022-09-13 00:58:07 UTC
File Type:
Document
Extracted files:
17
AV detection:
3 of 41 (7.32%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:4frd macro macro_on_action rat spyware stealer trojan
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Enumerates system info in registry
Gathers network information
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of SetThreadContext
Checks computer location settings
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Formbook
Process spawned unexpected child process
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | BitcoinAddress |
|---|---|
| Author: | Didier Stevens (@DidierStevens) |
| Description: | Contains a valid Bitcoin address |
| Rule name: | informational_win_ole_protected |
|---|---|
| Author: | Jeff White (karttoon@gmail.com) @noottrak |
| Description: | Identify OLE Project protection within documents. |
| Rule name: | malware_shellcode_hash |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect shellcode api hash value |
| Rule name: | meth_get_eip |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | pdb_YARAify |
|---|---|
| Author: | @wowabiy314 |
| Description: | PDB |
| Rule name: | RansomwareTest2 |
|---|---|
| Author: | Daoyuan Wu |
| Description: | Test Ransomware YARA rules |
| Rule name: | RansomwareTest3 |
|---|---|
| Author: | Daoyuan Wu |
| Description: | Test Ransomware YARA rules |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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