MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5ae9ee403c63e78514c23cdb6297c09a5367c241f6151def5fe1fc096946de4. 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: f5ae9ee403c63e78514c23cdb6297c09a5367c241f6151def5fe1fc096946de4
SHA3-384 hash: b334b808879d48ee72ac0968d54d7c4b7c3203a4ebef142928a847891d65bfb93859779a6ecafd5c465b05766742b1da
SHA1 hash: 656b2744eed942b4a4659d73813e3bebe704eb5a
MD5 hash: dee7396305b42cf03353059427ef8338
humanhash: ohio-bluebird-edward-hotel
File name:Invoice NO 22073895.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:432'823 bytes
First seen:2023-01-11 09:18:44 UTC
Last seen:2023-01-11 10:35:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 429 x GuLoader)
ssdeep 6144:oYa63qgvG1/xZGA3iCc34BJ8/BL7jYaMRHajFvC/H2wGy1JBq6Ou:oYNnvKHyx2J8xQvVa4/HBGy1Xr
TLSH T1419412127F84F4F7C9474E320DBE8D5D9EA6AD00608491133790B71E3EB5A62E94A7E3
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d4aa69dcdc75e2f4 (1 x Formbook)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
183
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Invoice NO 22073895.exe
Verdict:
Malicious activity
Analysis date:
2023-01-11 09:20:58 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/ac4bbcc9-7d5f-4c31-b154-8cf8d4a3dde3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/351873/
Detection(s):
Can't access file ERROR
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63be7f07fc9525ae8a453b05/reports/f639c6ef-2085-4a17-bf99-d632bcad5c5c/overview
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8834ee7d-0025-4448-8eae-71c0a4380e54
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1149476
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Executable has a suspicious name (potential lure to open the executable)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Initial sample is a PE file and has a suspicious name
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 domain / URL
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
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
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 782208 Sample: Invoice NO 22073895.exe Startdate: 11/01/2023 Architecture: WINDOWS Score: 100 34 www.648t.com 2->34 50 Snort IDS alert for network traffic 2->50 52 Multi AV Scanner detection for domain / URL 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 6 other signatures 2->56 12 Invoice NO 22073895.exe 19 2->12         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\Temp\yuzvbe.exe, PE32 12->32 dropped 15 yuzvbe.exe 12->15         started        process6 signatures7 68 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->68 70 Maps a DLL or memory area into another process 15->70 72 Tries to detect virtualization through RDTSC time measurements 15->72 74 Contains functionality to detect sleep reduction / modifications 15->74 18 yuzvbe.exe 15->18         started        process8 signatures9 42 Modifies the context of a thread in another process (thread injection) 18->42 44 Maps a DLL or memory area into another process 18->44 46 Sample uses process hollowing technique 18->46 48 Queues an APC in another process (thread injection) 18->48 21 explorer.exe 18->21 injected process10 dnsIp11 36 td-ccm-168-233.wixdns.net 34.117.168.233, 49695, 80 GOOGLE-AS-APGoogleAsiaPacificPteLtdSG United States 21->36 38 www.648t.com 38.54.132.94, 80 COGENT-174US United States 21->38 40 3 other IPs or domains 21->40 58 System process connects to network (likely due to code injection or exploit) 21->58 60 Performs DNS queries to domains with low reputation 21->60 25 chkdsk.exe 21->25         started        signatures12 process13 signatures14 62 Modifies the context of a thread in another process (thread injection) 25->62 64 Maps a DLL or memory area into another process 25->64 66 Tries to detect virtualization through RDTSC time measurements 25->66 28 cmd.exe 1 25->28         started        process15 process16 30 conhost.exe 28->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f5ae9ee403c63e78514c23cdb6297c09a5367c241f6151def5fe1fc096946de4/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-01-11 09:19:06 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6wxj5zadyy7hqukmepg3mkl4bgstm7bed5qvdxxv7yp4bfuunxsa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader campaign:poub loader persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/230111-k964eafe9w/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Xloader payload
Formbook
Xloader
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/7c380bb0-46ba-45cf-887a-3e9c9db06a64
Unpacked files
SH256 hash:
ca56268d4001f6d64513e45c19cb38db0953bf755eb4db62660355006549d904
MD5 hash:
b7463fa0d6c8c0845ad95df71146af7d
SHA1 hash:
f96bed594f3bf9447f925a8c18785d6f758c2b6d
Detections:
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/c4ce3058-d5ad-49fa-8b37-b47c8ce4c758/
Parent samples :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 hash:
a1dc5eb9fc043bb98f9cd8feaeec06d32eb3ba8e0a5a3ba26de41b8e728c6f51
MD5 hash:
bb7ce9d5bf22e0feaaa9edf66bf01316
SHA1 hash:
e9ff3c8b46963f58b74ea69b293530ebe691d188
Link:
https://www.unpac.me/results/c4ce3058-d5ad-49fa-8b37-b47c8ce4c758/
SH256 hash:
f5ae9ee403c63e78514c23cdb6297c09a5367c241f6151def5fe1fc096946de4
MD5 hash:
dee7396305b42cf03353059427ef8338
SHA1 hash:
656b2744eed942b4a4659d73813e3bebe704eb5a
Link:
https://www.unpac.me/results/c4ce3058-d5ad-49fa-8b37-b47c8ce4c758/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f5ae9ee403c6/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f5ae9ee403c63e78514c23cdb6297c09a5367c241f6151def5fe1fc096946de4

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
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.

File information

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

Malspam

Formbook

Executable exe f5ae9ee403c63e78514c23cdb6297c09a5367c241f6151def5fe1fc096946de4

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/351873/

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