MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 98bb91d8c80f060020b8b49a0a13a1c2cd0f3f5faf1aaad75b0825511ab06fd5. 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: 14
| SHA256 hash: | 98bb91d8c80f060020b8b49a0a13a1c2cd0f3f5faf1aaad75b0825511ab06fd5 |
|---|---|
| SHA3-384 hash: | 1984ca8ba35169120a9be7861fd3e212a3e44f7fafed92aab2f9758109766b36b55c46f9388df247a1c11a78aba2ae48 |
| SHA1 hash: | c1559ffd8dd2b43b544b98ee611fb7a4b1598b3a |
| MD5 hash: | 61482968d92f5fced3211a1ba2393656 |
| humanhash: | papa-social-jig-earth |
| File name: | RE,RE,PO.listedXitems.xlsx |
| Download: | download sample |
| Signature | Formbook |
| File size: | 848'048 bytes |
| First seen: | 2022-09-08 06:35:32 UTC |
| Last seen: | Never |
| File type: |  xlsx |
| MIME type: | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| ssdeep | 24576:cdDg0YXc5DWp2rDLI6liqTY9rOkGnulmYfD0n7:cdDg0acUp2jfpEO7QmKIn7 |
| TLSH | T186052387347EEC59D8FA46350A8426C76E6C01D7702D808972BAA010EF5E7F4E7F4B66 |
| TrID | 60.1% (.XLSX) Excel Microsoft Office Open XML Format document (34000/1/7) 30.9% (.ZIP) Open Packaging Conventions container (17500/1/4) 7.0% (.ZIP) ZIP compressed archive (4000/1) 1.7% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1) |
| 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 | 1136257 bytes | oLe10Native |
| A2 | 0 bytes | guBPrbiCTwPIxQIsmZP8PeV8ng |
Intelligence
File Origin
# of uploads :
1
# of downloads :
311
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
RE,RE,PO.listedXitems.xlsx
Verdict:
Malicious activity
Analysis date:
2022-09-08 06:38:22 UTC
Tags:
exploit CVE-2017-11882 loader formbook
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Searching for synchronization primitives
Launching a process
Creating a file in the %AppData% directory
Сreating synchronization primitives
Sending an HTTP GET request
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Embedding Objects
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
embedequation exploit shellcode
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:
FormBook
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Injects a PE file into a foreign processes
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Snort IDS alert for network traffic
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 detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
cve-2017-11882-shellcode
Threat name:
Document-OLE.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2022-09-07 00:26:54 UTC
File Type:
Document
Extracted files:
16
AV detection:
17 of 26 (65.38%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:ng04 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
Suspicious use of SetThreadContext
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Formbook payload
Formbook
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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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