MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b87fa8da6f775f13b1d72b19c0b107e87f875f71a69426ec24b61d7fb98929ae. 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: 16


Intelligence 16 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b87fa8da6f775f13b1d72b19c0b107e87f875f71a69426ec24b61d7fb98929ae
SHA3-384 hash: 82460e6e5c55087f31aaa6466e87a2beee913968da7f3f845165a4aa37bac03baa3bc58ee515deefb78f3b85823bdab8
SHA1 hash: 0e41e5f6f6da3e85747fe57c3243e4f74c8ca8bd
MD5 hash: 23cc9424daf0f44ea912e77ce8302447
humanhash: triple-skylark-cup-five
File name:b87fa8da6f775f13b1d72b19c0b107e87f875f71a69426ec24b61d7fb98929ae
Download: download sample
Signature Formbook
Create hunting rule
File size:185'856 bytes
First seen:2023-04-24 07:59:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 3072:sGcUkxSHP3Er83AYT8NGSYW67OycHpITU+ucNRPvCwlUKw:sysyAq6x6KycJUucNRP
Threatray 2'709 similar samples on MalwareBazaar
TLSH T1A004AE32DA42C431F2B252B5B2BD1B7B883D0E353295A4E9A3F115E06EA19D5F43931F
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
241
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b87fa8da6f775f13b1d72b19c0b107e87f875f71a69426ec24b61d7fb98929ae
Verdict:
No threats detected
Analysis date:
2023-04-24 08:01:25 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/242ea98a-62bc-4e13-95c2-d250a457332b

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/384469/
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
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/6446370c115cd381d96cad21/reports/fb72b20d-ab1b-45d1-887c-784a49ae921a/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b87fa8da6f775f13b1d72b19c0b107e87f875f71a69426ec24b61d7fb98929ae
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/a509629b-fe37-4d16-9b8f-4cd4eacdfec8
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1219813
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found 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
Uses netstat to query active network connections and open ports
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 852760 Sample: gGwh5rz3gZ.exe Startdate: 24/04/2023 Architecture: WINDOWS Score: 100 24 www.karamoghanasti.africa 2->24 26 www.bumvesti.com 2->26 40 Snort IDS alert for network traffic 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 7 other signatures 2->46 10 gGwh5rz3gZ.exe 2->10         started        signatures3 process4 signatures5 48 Modifies the context of a thread in another process (thread injection) 10->48 50 Maps a DLL or memory area into another process 10->50 52 Sample uses process hollowing technique 10->52 54 2 other signatures 10->54 13 explorer.exe 4 6 10->13 injected process6 dnsIp7 28 www.flexocomponents.com 94.154.117.227, 49702, 80 SMNT-NETPL unknown 13->28 30 www.bumvesti.com 64.225.91.73, 49701, 80 DIGITALOCEAN-ASNUS United States 13->30 32 www.generalhospitalaulue.africa 13->32 56 System process connects to network (likely due to code injection or exploit) 13->56 58 Uses netstat to query active network connections and open ports 13->58 17 NETSTAT.EXE 13->17         started        signatures8 process9 signatures10 34 Modifies the context of a thread in another process (thread injection) 17->34 36 Maps a DLL or memory area into another process 17->36 38 Tries to detect virtualization through RDTSC time measurements 17->38 20 cmd.exe 1 17->20         started        process11 process12 22 conhost.exe 20->22         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b87fa8da6f775f13b1d72b19c0b107e87f875f71a69426ec24b61d7fb98929ae/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-04-24 08:00:10 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=xb72rwtpo5prhmoxfmm4bmih5b7yox3ru2kcn3bewyox7omjfgxa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0c9c08dd1b167e08229d61213fec4505da6604edd7e27f3249ac9ab7fd3663e6
Formbook
35e8f730fa386dfecfb616ff20246d9eec1d6ec4d2b18f9d2e0d53032bff6b7f
Formbook
3b13397c20abd804bfd731c28f9949f2cbfcc08cdc28ec34457729d0a645dbb2
Formbook
65862cbf4192b68d8d687b05a2265876f35d6c0f7ae9e89bd1c5fc3d4800d505
Formbook
6d2bb754aafe182e4e4f041a651d1b47a168f82e0db28961ed56e8ebf2b4267b
Formbook
7f9b8fcc527d02e66b49d76ff52297d69dbf237a8dd4342fdf3f49a2189c67d0
Formbook
90f8a6e23c16788ef3a7adee0b9b9a03cede0905367d71a8be46d3dc24b7b759
Formbook
97ed764dcebaf5d2aef6e34f294e8933d5aca907754d7d4989c7985402660b0f
Formbook
e177f043fa2508aba819bf99d6082c9ae23b65af54de7347ed1ae53285ad7cff
Formbook
f8b1ba811be8ffc9b87d3f55b5c8c0a10b3d468f119eaf1d5c36d5664b940a84
Formbook
+ 2'699 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:oa09 rat
Link:
https://tria.ge/reports/230424-jvzv4scc5w/
Behaviour
Suspicious behavior: EnumeratesProcesses
Unpacked files
SH256 hash:
b87fa8da6f775f13b1d72b19c0b107e87f875f71a69426ec24b61d7fb98929ae
MD5 hash:
23cc9424daf0f44ea912e77ce8302447
SHA1 hash:
0e41e5f6f6da3e85747fe57c3243e4f74c8ca8bd
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/d5d652e0-9058-4e91-92bd-d162fa1462ba/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b87fa8da6f77/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b87fa8da6f775f13b1d72b19c0b107e87f875f71a69426ec24b61d7fb98929ae

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 b87fa8da6f775f13b1d72b19c0b107e87f875f71a69426ec24b61d7fb98929ae

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/384469/

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