MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 20b9420f506e9548f003a603897efa43b251d75c028102b5a1b4d84946b7540b. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 20b9420f506e9548f003a603897efa43b251d75c028102b5a1b4d84946b7540b
SHA3-384 hash: dd3d61b36c620f0a06739dc58276434ce04c9900016212a1014d0130c4532c9bd18d117ea156cf0efc7c04f3567ce785
SHA1 hash: 624f8d6f17ef7186a4e6083dcca914d8f571fdd7
MD5 hash: eaf55fbe0ae7a07e0bffec043c6d035c
humanhash: earth-blue-helium-colorado
File name:eaf55fbe0ae7a07e0bffec043c6d035c
Download: download sample
Signature Formbook
Create hunting rule
File size:32'768 bytes
First seen:2022-02-19 16:31:38 UTC
Last seen:2022-02-19 19:51:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 384:12lHQB38Zeb9H1xa0VIzll0zJJnGzMgWKsMhqJYWthW:UlwBzbBrIzll0zJJnGzMg5qJr
TLSH T17EE2E92166BC41F4FAECCDB02E16D3390A659C4144319525E5CB3CCAF977A03CBA66F5
File icon (PE):PE icon
dhash icon 27d0d8d4d4d8d027 (24 x AgentTesla, 8 x SnakeKeylogger, 7 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
348
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
tt-payment-204500-usd.docx
Verdict:
Malicious activity
Analysis date:
2022-02-19 07:53:39 UTC
Tags:
exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/aee2f4b0-c6a5-4a22-b5de-6e4593f40343

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/242694/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.39015266.32536.9301.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/62111b87a2660f3bb907c361/reports/cfeeb63a-e825-4b75-8933-d170e3255d48/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/155db72d-2439-4b0f-9f09-a951208dfc5a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/942657
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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 domain / URL
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: Application Executed Non-Executable Extension
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect virtualization through RDTSC time measurements
Uses ping.exe to check the status of other devices and networks
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 575135 Sample: k9DZoYjLJ3 Startdate: 19/02/2022 Architecture: WINDOWS Score: 100 76 yahoo.com 2->76 78 www.tg-vulcsite.top 2->78 80 www.budgetmdfdoors.com 2->80 114 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->114 116 Multi AV Scanner detection for domain / URL 2->116 118 Found malware configuration 2->118 120 13 other signatures 2->120 11 k9DZoYjLJ3.exe 15 5 2->11         started        signatures3 process4 dnsIp5 82 35.77.84.215, 49779, 80 AMAZON-02US United States 11->82 72 C:\Users\user\...\Veetyagdacrrximuif.exe, PE32 11->72 dropped 74 C:\Users\user\AppData\...\k9DZoYjLJ3.exe.log, ASCII 11->74 dropped 130 Tries to detect virtualization through RDTSC time measurements 11->130 132 Injects a PE file into a foreign processes 11->132 16 k9DZoYjLJ3.exe 11->16         started        19 Veetyagdacrrximuif.exe 1 4 11->19         started        22 cmd.exe 1 11->22         started        24 4 other processes 11->24 file6 signatures7 process8 file9 96 Modifies the context of a thread in another process (thread injection) 16->96 98 Maps a DLL or memory area into another process 16->98 100 Sample uses process hollowing technique 16->100 102 Queues an APC in another process (thread injection) 16->102 26 explorer.exe 16->26 injected 70 C:\Users\user\AppData\Roaming\...\Xicktt.exe, PE32 19->70 dropped 104 Antivirus detection for dropped file 19->104 106 Multi AV Scanner detection for dropped file 19->106 108 Machine Learning detection for dropped file 19->108 110 Injects a PE file into a foreign processes 19->110 28 cmd.exe 1 19->28         started        30 cmd.exe 1 19->30         started        32 cmd.exe 1 19->32         started        40 7 other processes 19->40 112 Uses ping.exe to check the status of other devices and networks 22->112 34 conhost.exe 22->34         started        36 PING.EXE 1 22->36         started        38 conhost.exe 24->38         started        42 7 other processes 24->42 signatures10 process11 process12 44 rundll32.exe 26->44         started        47 PING.EXE 1 28->47         started        50 conhost.exe 28->50         started        52 PING.EXE 1 30->52         started        54 conhost.exe 30->54         started        56 PING.EXE 1 32->56         started        58 conhost.exe 32->58         started        60 PING.EXE 1 40->60         started        62 13 other processes 40->62 dnsIp13 122 Self deletion via cmd delete 44->122 124 Modifies the context of a thread in another process (thread injection) 44->124 126 Maps a DLL or memory area into another process 44->126 128 Tries to detect virtualization through RDTSC time measurements 44->128 64 cmd.exe 44->64         started        66 explorer.exe 44->66         started        84 yahoo.com 98.137.11.164 YAHOO-GQ1US United States 47->84 86 74.6.231.20 YAHOO-NE1US United States 52->86 88 192.168.2.1 unknown unknown 52->88 90 74.6.231.21 YAHOO-NE1US United States 62->90 92 98.137.11.163 YAHOO-GQ1US United States 62->92 94 74.6.143.25 YAHOO-3US United States 62->94 signatures14 process15 process16 68 conhost.exe 64->68         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/20b9420f506e9548f003a603897efa43b251d75c028102b5a1b4d84946b7540b/
Threat name:
ByteCode-MSIL.Trojan.Tiggre
Create hunting rule
Status:
Malicious
First seen:
2022-02-19 00:51:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
18 of 28 (64.29%)
Threat level:
  5/5
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:b1s5 persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/220219-t1y6wabgfq/
Behaviour
Runs ping.exe
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
Unpacked files
SH256 hash:
20b9420f506e9548f003a603897efa43b251d75c028102b5a1b4d84946b7540b
MD5 hash:
eaf55fbe0ae7a07e0bffec043c6d035c
SHA1 hash:
624f8d6f17ef7186a4e6083dcca914d8f571fdd7
Link:
https://www.unpac.me/results/da66946e-00ab-4051-a599-70f88079ccfb/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/20b9420f506e9548f003a603897efa43b251d75c028102b5a1b4d84946b7540b

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.

Web download

Formbook

Executable exe 20b9420f506e9548f003a603897efa43b251d75c028102b5a1b4d84946b7540b

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2048853/
Cape
Cape
https://www.capesandbox.com/analysis/242694/

Comments


Avatar
zbet commented on 2022-02-19 16:31:40 UTC

url : hxxp://35.77.84.215/mali/biin.bat