MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fb4c3c803b69b2823f0bb584ef77da38f17eaf18184058249b6dd7664234cb53. 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: 15


Intelligence 15 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fb4c3c803b69b2823f0bb584ef77da38f17eaf18184058249b6dd7664234cb53
SHA3-384 hash: 344cf3f2ea197a515d7d0b93cf0734cc1f787473cf56773f46d103c392d94a4ba142d9a4a86f4cac78247302bb6bb5af
SHA1 hash: 9fc08d5def106aba0a0d828738ea95300d98c184
MD5 hash: f7a88d9f0c5de7367498989139aec2b2
humanhash: jersey-magazine-burger-oven
File name:fb4c3c803b69b2823f0bb584ef77da38f17eaf18184058249b6dd7664234cb53
Download: download sample
Signature Formbook
Create hunting rule
File size:185'856 bytes
First seen:2023-03-27 05:28:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 3072:3bX4kQvFJdO43t/c5scFV6hP/zSJRXUweMoeks3jG1ZlRRR:GU2tk5B6hP/MX9e3eHzG1Z
Threatray 2'540 similar samples on MalwareBazaar
TLSH T10404AE36DA42C071E2B211B4B6B91B7B493E0D343295A5EAA3E619E01FF44A5F43931F
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
237
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
fb4c3c803b69b2823f0bb584ef77da38f17eaf18184058249b6dd7664234cb53
Verdict:
No threats detected
Analysis date:
2023-03-27 05:35:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c91e8814-4032-48eb-bb26-ec3c8945f3f4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/377737/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Banker1.29984.UNOFFICIAL
Create hunting rule

Win.Malware.Formbook-7399661-0
Create hunting rule

Win.Malware.Formbook-9951997-0
Create hunting rule

Win.Malware.Formbook-9964980-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
75%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/642129b680ca4ca1ff598de4/reports/405ed59a-b863-453b-a1c0-257e456b6e51/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/fb4c3c803b69b2823f0bb584ef77da38f17eaf18184058249b6dd7664234cb53
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5c9b31ff-f495-4194-9192-2bab43257353
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1202429
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
Snort IDS alert for network traffic
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:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fb4c3c803b69b2823f0bb584ef77da38f17eaf18184058249b6dd7664234cb53/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-03-27 05:29:25 UTC
File Type:
PE (Exe)
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7ngdzab3ngziepylwwco6562hdyx5lyydbafqje3nxlwmqruznjq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
08c1559e163d8289bc2dacb9eaca914058628b31f2d4bc88f52e4491ede7bb55
Formbook
195c2339e793e897abd2ceb7fc3d675f7af1fb4b60fdf1a8d736fb4c3e35372f
Formbook
59162d6533d5d56ceedd3f8a24e85e75cd198c72db5719188a4a582752d7fbe4
Formbook
60f8c4a0b8195562a53f3d4c8fbc885b606924a2a871185e13391f4a2e7cdec8
Formbook
6f4246a44c4b69ed8cc30d0583be906c7a8040216321889da1bd74ba7815aedd
Formbook
7e1f215877d458883e98c874ce1226b561f0ddd5114dad6baef44d66d33a98a6
Formbook
a5976236ba0b3e31a6dd09af3abe7d0121a4053bb22669869a874d1ba97bd495
Formbook
d0f12689eacf1ad6c798d62635bf7f18a855264a42e072ca9a2cb6a742a39dba
Formbook
f3bc0aabd3ffd26912977ae43d90b5ee187da63436b4395489f75a13012e7dda
Formbook
f51bdb3c0026435904048abffb411be8b57143de59d0e66a3e2dfa3f2e5692ad
Formbook
+ 2'530 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:n13e rat
Link:
https://tria.ge/reports/230327-f6lwvadh7s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Unpacked files
SH256 hash:
fb4c3c803b69b2823f0bb584ef77da38f17eaf18184058249b6dd7664234cb53
MD5 hash:
f7a88d9f0c5de7367498989139aec2b2
SHA1 hash:
9fc08d5def106aba0a0d828738ea95300d98c184
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/7cd4809e-ecdd-45c9-a58b-fa2bb8dd7a70/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.76
Link:
https://yomi.yoroi.company/submissions/fb4c3c803b69b2823f0bb584ef77da38f17eaf18184058249b6dd7664234cb53

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe fb4c3c803b69b2823f0bb584ef77da38f17eaf18184058249b6dd7664234cb53

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/377737/

Comments