MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b3db55767e2d5972892d5832d84b7879d2ec179ee501dd41ee9fcc11f107132. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3b3db55767e2d5972892d5832d84b7879d2ec179ee501dd41ee9fcc11f107132
SHA3-384 hash: 44a881a6f9c5a7d1545c04177b86770982c371f6f308c9e98e8c6b9a8d2980843c199edf8ea9057990200f02b541cd67
SHA1 hash: 98cf7d90a7d649e5fca3ee9d54e968a808a400fe
MD5 hash: 5241378b9062c2addccc376eab4a909a
humanhash: cat-lake-london-massachusetts
File name:URGENT REQUEST FOR QUOTE Scan copy_Pdf_.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:751'616 bytes
First seen:2022-02-21 09:45:28 UTC
Last seen:2022-02-21 10:34:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:dlrby0chFFQWNBcYeeJpj9w7gDvwSQ6tEhg35u/7aOIZnrfsysS7:DbHchFjJ47XSQ6uhg35eAnx
Threatray 10'259 similar samples on MalwareBazaar
TLSH T1D8F4DFEC287741F9E3268EFE5DDCE5B0CE78A6212505F8B97CC91E524B01B448DD227A
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
214
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/242923/
Detection(s):
SecuriteInfo.com.MachineLearning.Anomalous.94.24751.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/62135f5eac8ad0468b602f04/reports/e4ffc63c-6e95-4182-b722-2e3111dad9d0/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a9a483c8-601d-4216-8503-4f346bcdb531
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/943130
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: CMSTP Execution Process Creation
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 575608 Sample: URGENT REQUEST FOR QUOTE Sc... Startdate: 21/02/2022 Architecture: WINDOWS Score: 100 43 www.traicayquangngai.com 2->43 45 www.smotivesport.com 2->45 47 8 other IPs or domains 2->47 49 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 18 other signatures 2->55 11 URGENT REQUEST FOR QUOTE Scan copy_Pdf_.exe 7 2->11         started        signatures3 process4 file5 35 C:\Users\user\AppData\...\fxTJcsArgo.exe, PE32 11->35 dropped 37 C:\Users\...\fxTJcsArgo.exe:Zone.Identifier, ASCII 11->37 dropped 39 C:\Users\user\AppData\Local\...\tmpA7A2.tmp, XML 11->39 dropped 41 URGENT REQUEST FOR...n copy_Pdf_.exe.log, ASCII 11->41 dropped 57 Adds a directory exclusion to Windows Defender 11->57 59 Injects a PE file into a foreign processes 11->59 15 URGENT REQUEST FOR QUOTE Scan copy_Pdf_.exe 11->15         started        18 powershell.exe 25 11->18         started        20 schtasks.exe 1 11->20         started        signatures6 process7 signatures8 69 Modifies the context of a thread in another process (thread injection) 15->69 71 Maps a DLL or memory area into another process 15->71 73 Sample uses process hollowing technique 15->73 75 Queues an APC in another process (thread injection) 15->75 22 explorer.exe 15->22 injected 24 conhost.exe 18->24         started        26 conhost.exe 20->26         started        process9 process10 28 cmstp.exe 22->28         started        signatures11 61 Self deletion via cmd delete 28->61 63 Modifies the context of a thread in another process (thread injection) 28->63 65 Maps a DLL or memory area into another process 28->65 67 Tries to detect virtualization through RDTSC time measurements 28->67 31 cmd.exe 1 28->31         started        process12 process13 33 conhost.exe 31->33         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3b3db55767e2d5972892d5832d84b7879d2ec179ee501dd41ee9fcc11f107132/
Threat name:
ByteCode-MSIL.Trojan.XLoader
Create hunting rule
Status:
Malicious
First seen:
2022-02-21 09:46:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hm63kv3h4lkzokes2wbs3bfxq6os5qlz5zib3va65h6mchyqoeza._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2e3fd0cf4b98695538a9c744e1961b63ec166fe3c02719560fedaddcd0fde689
Formbook
3446a9d1fcd21b6e219220379f6b82cccf3cb967b9af1f9e91fa511e90eab639
Formbook
47d424c280738861bd8cf731e43137dc875d186cd277c6db8ab98f3e74453022
Formbook
6667380c74ccc01901ae2ae234ca53eba30ab8b27c007ce2b403aefcc11ce871
Formbook
75e52fcffe8c57f96f521a16c80c3cfc75770ecd0f929cb88d1d4ed6f9d6e923
Formbook
b0c567625449e363a2ca6fcea897fd19a81218df0985163ff4b4cd5fecfdba50
Formbook
d70081accf4af57ec864124e5b0efeabf78d057fa64941e55bfc8fc5b79b66f9
Formbook
e649ef1ecf0e0daefe140fa78271435271c8d55607f8365ddef4d94b66bfdfdd
Formbook
f3a2d8b0fe1ccd8d1deb057efd255a123444b0298e24d0aabe385136580accdc
Formbook
+ 10'249 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:edf6 loader rat suricata
Link:
https://tria.ge/reports/220221-lrmsgsafcn/
Behaviour
Creates scheduled task(s)
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
Drops file in Windows directory
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
d7ec99606ae71b9a0841680a25cc0fcd4a45915d5291f7e03e85d9b8ec871032
MD5 hash:
4a7a35b35aa7bffcce780c4efc31cbeb
SHA1 hash:
5f5d7ed535e3b305a3064b8139f1aa533c7db74e
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/9fd3d986-0593-4017-a834-70a9b22c8b7a/
Parent samples :
3336b511b906b02bae8c9addc0896660dbe98cc95a01acf0b18a9020953cb13e
a5a5f44907b66b03277d484eac713c47cb4c39751b8cba89a4d0c54d387362bf
993c7253966fed344ec31076448b6d38ca58b11116d57cf578115595b9fc1c86
3b3db55767e2d5972892d5832d84b7879d2ec179ee501dd41ee9fcc11f107132
6988ca1c014e55ad0ff7c394a9be532bf01fe531d68dfaba70ea106f9db787cb
SH256 hash:
e33254e2ad4d279914a29450f98d1750a9f513fc8ddb853e0dd8346b805faa43
MD5 hash:
b597cce7bfc65e56fa69ebb7f413a33f
SHA1 hash:
7ee40df5ac783432e7c9f7be4f7ed1f286345d58
Link:
https://www.unpac.me/results/9fd3d986-0593-4017-a834-70a9b22c8b7a/
SH256 hash:
8c14332e3d1bab0757968953f8babd9703ba89c1f1b874cb12cf1284a29e4ab2
MD5 hash:
3d40ed4eab2795c486a46e727d6a1f7d
SHA1 hash:
7c935b94a1e7b81def623d4d261e09a7403490bb
Link:
https://www.unpac.me/results/9fd3d986-0593-4017-a834-70a9b22c8b7a/
SH256 hash:
828b6e1500d82863669ffe86d93c5e81e50d2c7eecf397bf5de8c19f0799c4ca
MD5 hash:
0b67ce2f0507373d54942151c0161835
SHA1 hash:
4ac27aad8c7ca30ff29873018d6733ae9e181cb0
Link:
https://www.unpac.me/results/9fd3d986-0593-4017-a834-70a9b22c8b7a/
SH256 hash:
3b3db55767e2d5972892d5832d84b7879d2ec179ee501dd41ee9fcc11f107132
MD5 hash:
5241378b9062c2addccc376eab4a909a
SHA1 hash:
98cf7d90a7d649e5fca3ee9d54e968a808a400fe
Link:
https://www.unpac.me/results/9fd3d986-0593-4017-a834-70a9b22c8b7a/
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/3b3db55767e2d5972892d5832d84b7879d2ec179ee501dd41ee9fcc11f107132

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: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 3b3db55767e2d5972892d5832d84b7879d2ec179ee501dd41ee9fcc11f107132

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/242923/

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