MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8f0fba4653d18b7a2b79042ad9f43404cf9adfb4c36cdb6e549647de16c8139e. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8f0fba4653d18b7a2b79042ad9f43404cf9adfb4c36cdb6e549647de16c8139e
SHA3-384 hash: 1aff30a6a71d28370bb383b384fd1023038f36375a666eda2dad1a05a4ae60ff20095811666dfbb2008a0decade6dbca
SHA1 hash: ee65b0fe2132bcd4b7120e8d189b611cb2005ea9
MD5 hash: 53c69268d8fb86c623f00a33041a31ad
humanhash: avocado-idaho-ceiling-arizona
File name:2100200939.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:382'648 bytes
First seen:2022-06-29 12:05:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:TeAShbP4+Ot5t+PVoIe0RWpNAmTCRVAZ63zIqxYBcLDVmqplsk3fZBvz7xU6IqT+:TFShz4+OtWerpNAlVYqWu4q/s+ZB7+p
Threatray 693 similar samples on MalwareBazaar
TLSH T1AD84CF57BA8D974CC308DA71B4B186341361CFA72223CA1AB5C5FF2C4A717EE36092D5
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 6ccccc9cc4d8e8f4 (41 x Formbook, 34 x AgentTesla, 3 x AveMariaRAT)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
232
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/284231/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Launching a process
Creating a file
Launching cmd.exe command interpreter
Сreating synchronization primitives
Searching for synchronization primitives
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated overlay packed
Link:
https://www.filescan.io/uploads/62bc402ecd5fc77b1d52a885/reports/0d6930fe-3030-41a8-b9d3-4d12e91d0f94/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4de6b782-ea8b-47de-9ac3-5f757388014d
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1021856
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 654352 Sample: 2100200939.exe Startdate: 29/06/2022 Architecture: WINDOWS Score: 100 33 www.clinicadentalvelinta.com 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus detection for URL or domain 2->37 39 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->39 41 6 other signatures 2->41 11 2100200939.exe 1 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\2100200939.exe.log, ASCII 11->31 dropped 49 Writes to foreign memory regions 11->49 51 Allocates memory in foreign processes 11->51 53 Injects a PE file into a foreign processes 11->53 55 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->55 15 cvtres.exe 11->15         started        18 cvtres.exe 11->18         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 Queues an APC in another process (thread injection) 15->63 20 explorer.exe 15->20 injected 65 Tries to detect virtualization through RDTSC time measurements 18->65 process9 process10 22 cmmon32.exe 20->22         started        signatures11 43 Modifies the context of a thread in another process (thread injection) 22->43 45 Maps a DLL or memory area into another process 22->45 47 Tries to detect virtualization through RDTSC time measurements 22->47 25 cmd.exe 1 22->25         started        27 explorer.exe 1 156 22->27         started        process12 process13 29 conhost.exe 25->29         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8f0fba4653d18b7a2b79042ad9f43404cf9adfb4c36cdb6e549647de16c8139e/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-06-29 09:08:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r4h3urst2gfxuk3zaqvnt5buathzvx5uynwnw3suszd54fwicopa._file
Verdict:
malicious
Similar samples:
5ee7d8272409a296de5ea6532e66a0ffe2adfbb5597d3713c488eff2cb39877b
Formbook
8558b1dc5b1be6d0d12184c58eefe9f54f5bbab09fdb1aafeed176f62780f00b
Formbook
9706247fdb847874ca3fad6229787e37299be25d938af865a8e5b132bf313b89
Formbook
9dd08cf2672502db217f9772affb88657f8559d8f4d946af25c4b22428ea336a
Formbook
b96d9319d131de965ffca4c9e3ede73783dabf45de05bbe0bf21656f2eb2a32f
Formbook
c298de52a122a4d0e3c96cb897c6f72c0bd0189b3e4408a70a17a6e17115f6dc
Formbook
cd44752a2e61a21cb5f01b7a791c60aee8b36c8a34b639ade2ce55f30054afe2
Formbook
e37c4daba535ae3e00e91f1d8adf1658e85ace85cad19a37c79976140dbe4350
Formbook
+ 683 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:s3s3 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220629-n9qcfahdbp/
Behaviour
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
Suspicious use of SetThreadContext
Blocklisted process makes network request
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
072f4f8ae3bf501da1075c9689b1e76d2f3def6d05686be3af0f8a90f965d784
MD5 hash:
9d3c6d818a558a5718f0bc65bb953efb
SHA1 hash:
0631e3047afd1443452de5d323f2910eb371b75f
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Link:
https://www.unpac.me/results/37f27c2d-6413-4179-942b-5e6783d2c473/
Parent samples :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 hash:
8f0fba4653d18b7a2b79042ad9f43404cf9adfb4c36cdb6e549647de16c8139e
MD5 hash:
53c69268d8fb86c623f00a33041a31ad
SHA1 hash:
ee65b0fe2132bcd4b7120e8d189b611cb2005ea9
Link:
https://www.unpac.me/results/37f27c2d-6413-4179-942b-5e6783d2c473/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8f0fba4653d1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AlphaCrypt
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8f0fba4653d18b7a2b79042ad9f43404cf9adfb4c36cdb6e549647de16c8139e

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
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

Executable exe 8f0fba4653d18b7a2b79042ad9f43404cf9adfb4c36cdb6e549647de16c8139e

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/284231/

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