MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b3420cc90cce972045db0377a5c383ce049652650946b0c84f27280a7dbd1e38. 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
| SHA256 hash: | b3420cc90cce972045db0377a5c383ce049652650946b0c84f27280a7dbd1e38 |
|---|---|
| SHA3-384 hash: | 9fc2237001673881e338dc265e56a12d229cbf03cd309a58db067dd9df89c6bb8e2b2f9259583d1565ed6897084244df |
| SHA1 hash: | efc90b40d9d71297ee09e574ebb5c204c5d3e8d1 |
| MD5 hash: | 0e5c7a3af53f7d8acc635db6771d7f84 |
| humanhash: | failed-september-montana-paris |
| File name: | b3420cc90cce972045db0377a5c383ce049652650946b0c84f27280a7dbd1e38 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 185'856 bytes |
| First seen: | 2020-10-24 21:01:09 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| ssdeep | 3072:3ri9uSbDZMLbT2O3c3OqMtqniTSn032TPE3z06g/ORXkFnKL2muZUV:34wf3c+q6qniZGzMz0DkyKimxV |
| Threatray | 2'702 similar samples on MalwareBazaar |
| TLSH | D504AE32D242C031F2B201B5F67D1B7B483E0E357294A4AAA3E516E06FE55E5F52A31F |
| Reporter |  seifreed |
| Tags: | FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
103
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a UDP request
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
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)
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
Sigma detected: Suspicious Svchost Process
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2020-10-18 09:43:14 UTC
AV detection:
28 of 28 (100.00%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 2'692 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
10/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Unpacked files
SH256 hash:
b3420cc90cce972045db0377a5c383ce049652650946b0c84f27280a7dbd1e38
MD5 hash:
0e5c7a3af53f7d8acc635db6771d7f84
SHA1 hash:
efc90b40d9d71297ee09e574ebb5c204c5d3e8d1
Detections:
win_formbook_g0
win_formbook_auto
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
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: | Formbook |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Formbook in memory |
| Reference: | internal research |
| Rule name: | win_formbook_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | autogenerated rule brought to you by yara-signator |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Delivery method
Other
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