MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a2e56ee7abc330ee99d988aee0c118f06003cd7062c3a68bedec7faa59f41f55. 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: 10
Maldoc score: 7
| SHA256 hash: | a2e56ee7abc330ee99d988aee0c118f06003cd7062c3a68bedec7faa59f41f55 |
|---|---|
| SHA3-384 hash: | bc5a9c391a5d46d0276411cf2667e8be7ffe8fa7fe2d647fe6e594592d41af6b60c0836717ebdec3b11aa9406b4a959a |
| SHA1 hash: | 7daac212c4080fc4c6abc01f515c7548be710d54 |
| MD5 hash: | 78a966dd22bc2e85d2f807e2575ea471 |
| humanhash: | leopard-pip-gee-diet |
| File name: | Drawings.xlsm |
| Download: | download sample |
| Signature | Formbook |
| File size: | 151'401 bytes |
| First seen: | 2021-02-22 07:01:35 UTC |
| Last seen: | Never |
| File type: |  xlsm |
| MIME type: | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| ssdeep | 3072:wvJ3kCS7k3XOmT/QzXIWGfaZW+lLrC+yfC:wv1VS7knOoIcfaZW+lLxyfC |
| TLSH | 26E39D479112A7A3D02853F93F0B4E986B19AB0CD5C2BDDB14520CDB3BE53221DAE75E |
| Reporter |  abuse_ch |
| Tags: | FormBook xlsm |
abuse_ch
Malspam distributing Formbook:HELO: Averett.edu
Sending IP: 205.167.138.208
From: Trim Poker <abuse@averett.edu>
Reply-To: Trim Poker <smtpfox-zxy5e@dgpl.by>
Subject: New Order Confirmation
Attachment: Drawings.zip (contains "Drawings.xlsm")
Formbook payload URL:
http://cheatsheet2weightloss.com/Designs.exe
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: 7 |
OLE dump
MalwareBazaar was able to identify 13 sections in this file using oledump:
| Section ID | Section size | Section name |
|---|---|---|
| A1 | 426 bytes | PROJECT |
| A2 | 62 bytes | PROJECTwm |
| A3 | 1150 bytes | VBA/Sheet1 |
| A4 | 34382 bytes | VBA/ThisWorkbook |
| A5 | 2581 bytes | VBA/_VBA_PROJECT |
| A6 | 1441 bytes | VBA/__SRP_0 |
| A7 | 160 bytes | VBA/__SRP_1 |
| A8 | 276 bytes | VBA/__SRP_2 |
| A9 | 66 bytes | VBA/__SRP_3 |
| A10 | 456 bytes | VBA/__SRP_4 |
| A11 | 193 bytes | VBA/__SRP_5 |
| A12 | 523 bytes | 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_Open | Runs when the Excel Workbook is opened |
| Suspicious | Shell | May run an executable file or a system command |
| Suspicious | Chr | May attempt to obfuscate specific strings (use option --deobf to deobfuscate) |
| Suspicious | Hex Strings | Hex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all) |
Intelligence
File Origin
# of uploads :
1
# of downloads :
89
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Malicious
File type:
application/vnd.ms-excel.sheet.macroEnabled.12
Has a screenshot:
False
Contains macros:
True
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a process with a hidden window
Launching a process
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Creating a process from a recently created file
Running batch commands by exploiting the app vulnerability
Result
Verdict:
Suspicious
File Type:
Excel File with Macro
Document image
Image:
Result
Verdict:
MALICIOUS
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
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
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Document contains an embedded VBA with many string operations indicating source code obfuscation
Document exploit detected (process start blacklist hit)
Encrypted powershell cmdline option found
Found malware configuration
Injects a PE file into a foreign processes
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
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Powershell drops PE file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Microsoft Office Product Spawning Windows Shell
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM_3
Yara detected FormBook
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
Document-Excel.Trojan.Valyria
Status:
Malicious
First seen:
2021-02-22 07:02:11 UTC
AV detection:
18 of 47 (38.30%)
Threat level:
5/5
Detection(s):
Malicious file
Result
Malware family:
xloader
Score:
10/10
Tags:
family:formbook family:xloader loader macro rat spyware stealer trojan
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 SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Suspicious use of SetThreadContext
Loads dropped DLL
Blocklisted process makes network request
Executes dropped EXE
Xloader Payload
Formbook
Process spawned unexpected child process
Xloader
Malware Config
C2 Extraction:
http://www.primeviewm.com/e68n/
Dropper Extraction:
http://cheatsheet2weightloss.com/Designs.exe
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: | Email_stealer_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Email in files like avemaria |
| Rule name: | IPPort_combo_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | IP and port combo |
| Rule name: | Select_from_enumeration |
|---|---|
| Author: | James_inthe_box |
| Description: | IP and port combo |
| Rule name: | SharedStrings |
|---|---|
| Author: | Katie Kleemola |
| Description: | Internal names found in LURK0/CCTV0 samples |
| Rule name: | UAC_bypass_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | UAC bypass in files like avemaria |
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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