MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f4171526b06d5a9c867e81cd7d8a808fd0897209e18005fe83a969324321bacd. 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: 8
| SHA256 hash: | f4171526b06d5a9c867e81cd7d8a808fd0897209e18005fe83a969324321bacd |
|---|---|
| SHA3-384 hash: | c479bcce95f86ee92b0c55cc71b41b770712d52d12916746fcbc57ea0a5faf1c72579b1eb6d87eb043369c24636f39cb |
| SHA1 hash: | 52e1421b0032ae81e5e7ac90d5ae4810029b4c30 |
| MD5 hash: | 4ee86657631a3301348d222b5e8707ad |
| humanhash: | snake-four-red-indigo |
| File name: | 4ee86657631a3301348d222b5e8707ad |
| Download: | download sample |
| Signature | Formbook |
| File size: | 278'528 bytes |
| First seen: | 2021-06-25 09:33:07 UTC |
| Last seen: | 2021-06-25 10:45:35 UTC |
| File type: |  msi |
| MIME type: | application/x-msi |
| ssdeep | 6144:oEtTqjFahg9Njr98mhBLW9YcXQPk10TKlvgeo2Y3hpJedCEYw:oE9f+l8mhM9fak1toXYsW |
| Threatray | 6'026 similar samples on MalwareBazaar |
| TLSH | 8544120B77C04877E96A967208BFDB38D3AACF011A52124747D47FBD1A3235B26883D9 |
| Reporter |  zbetcheckin |
| Tags: | FormBook msi |
Intelligence
File Origin
# of uploads :
2
# of downloads :
126
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Result
Verdict:
MALICIOUS
Link:
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
DLL side loading technique detected
Found malware configuration
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-06-24 16:13:39 UTC
AV detection:
6 of 46 (13.04%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 6'016 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook macro rat spyware stealer trojan xlm
Behaviour
Checks SCSI registry key(s)
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
NSIS installer
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Enumerates connected drives
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.fbrblog.com/k1rc/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
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: | crime_win32_ransom_avaddon_1 |
|---|---|
| Author: | @VK_Intel |
| Description: | Detects Avaddon ransomware |
| Reference: | https://twitter.com/VK_Intel/status/1300944441390370819 |
| Rule name: | Email_stealer_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Email in files like avemaria |
| Rule name: | Executable_Converted_to_MSI |
|---|
| Rule name: | INDICATOR_MSI_EXE2MSI |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables converted to .MSI packages using a free online converter. |
| Rule name: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | IPPort_combo_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | IP and port combo |
| Rule name: | Ping_Del_method_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | cmd ping IP nul del |
| 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.
Web download
Delivery method
Distributed via web download
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