MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 c386af35bc183ea3251b0ae8b742c6e8e2fbcf127ef8c543548caebac15189e3. 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: 17
| SHA256 hash: | c386af35bc183ea3251b0ae8b742c6e8e2fbcf127ef8c543548caebac15189e3 |
|---|---|
| SHA3-384 hash: | a7b1c4474b53634b8bbfb5bfe0de52619b07ff8a93cbf9631901dc252801eefd0c235708c9df948d933fd8b69c298f93 |
| SHA1 hash: | bdfd95750e05badfd1a94868b47999eff4babfa1 |
| MD5 hash: | 72f73374e31449e2bbb10eb958838cf0 |
| humanhash: | undress-april-shade-early |
| File name: | RFQ# CF14521703_25903.xlsx |
| Download: | download sample |
| Signature | Formbook |
| File size: | 1'965'603 bytes |
| First seen: | 2025-05-19 07:55:45 UTC |
| Last seen: | 2025-05-19 12:50:23 UTC |
| File type: |  xlsx |
| MIME type: | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| ssdeep | 49152:iitaye2mcY9IpaHs711/Igox6VvqT02eyDOwVkDGaY9BNSHgHUd:daye2FYCaHW1/Ij6gT02eyDjVk67KHq0 |
| TLSH | T1EE9533296B04A79F71DE55FDA506C4B083BFB78381409FC83AD79944BBC61987C28ACD |
| TrID | 61.2% (.XLSX) Excel Microsoft Office Open XML Format document (34000/1/7) 31.5% (.ZIP) Open Packaging Conventions container (17500/1/4) 7.2% (.ZIP) ZIP compressed archive (4000/1) |
| Magika | xlsx |
| Reporter |  lowmal3 |
| Tags: | CVE-2017-11882 FormBook xlsx |
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 dump
MalwareBazaar was able to identify 3 sections in this file using oledump:
| Section ID | Section size | Section name |
|---|---|---|
| A1 | 2209521 bytes | olE10NaTive |
| A2 | 0 bytes | tTSD5RAW7kK4YUBW |
Intelligence
File Origin
# of uploads :
2
# of downloads :
4'614
Origin country :
DEVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ# CF14521703_25903.xlsx
Verdict:
No threats detected
Analysis date:
2025-05-19 07:57:56 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/octet-stream
Has a screenshot:
False
Contains macros:
False
Verdict:
Malicious
Score:
96.5%
Tags:
autoit emotet spam
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Searching for synchronization primitives
Launching a process
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Сreating synchronization primitives
Creating a file in the %temp% directory
Using the Windows Management Instrumentation requests
Connection attempt by exploiting the app vulnerability
Launching a file downloaded from the Internet
Creating a process from a recently created file
Unauthorized injection to a system process
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Embedding Objects
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
autoit embedequation exploit fingerprint keylogger shellcode
Verdict:
Malicious
Labled as:
CVE-2017-11882
Label:
Malicious
Suspicious Score:
9.8/10
Score Malicious:
99%
Score Benign:
1%
Result
Verdict:
MALICIOUS
Link:
Details
Document With No Content
Document contains little or no semantic information.
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
64 / 100
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
OFFICE
Detection:
cve-2017-11882-shellcode
Threat name:
Document-Office.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2025-05-19 07:06:16 UTC
File Type:
Document
Extracted files:
16
AV detection:
18 of 24 (75.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
1/10
Tags:
n/a
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Verdict:
Suspicious
Tags:
exploit
YARA:
INDICATOR_OLE_EXPLOIT_CVE_2017_11882_1
Malware family:
FormBook
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: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| Author: | XiAnzheng |
| Description: | Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP) |
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
Comments
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