MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b811328fd6ddf4562a9f6066fd93193e3a344fc482dd9303c131d81888017b9a. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
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SHA256 hash: b811328fd6ddf4562a9f6066fd93193e3a344fc482dd9303c131d81888017b9a
SHA3-384 hash: d0e1ae2a496295766a1856c681def44a72a3208bbbb2377afcf1d1a4d8b6c8fb97937c553f560ca4a836acc486cc50f4
SHA1 hash: cb5c3bea23b54aba08f1efaec5f511e2544e0552
MD5 hash: e590634fbc2e55249d2c4044d92dcad4
humanhash: rugby-wyoming-florida-hamper
File name:e590634fbc2e55249d2c4044d92dcad4
Download: download sample
Signature Formbook
Create hunting rule
File size:532'480 bytes
First seen:2021-06-13 15:45:47 UTC
Last seen:2021-06-13 16:42:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:N6oKzvNway4ETsjSkYr9fUAKz9WASWUUrwtaLnvE:ezvNsCGXr9fvKzVSWqtW
TLSH 7DB4F10A7A955B46C554D4F1D0FB463403E3B5C7A636D2867A8807DF2E123E88DCAF8E
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
169
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
e590634fbc2e55249d2c4044d92dcad4
Verdict:
Malicious activity
Analysis date:
2021-06-13 15:49:25 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/cc8fac3f-225b-450c-bb85-aa9d5ad651f4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.46468219.17562.5106.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Sending a UDP request
Launching a process
Creating a file
Launching cmd.exe command interpreter
Unauthorized injection to a system process
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/10fb7d7e-a101-419d-9f09-87ec621c4947
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/801355
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found malware configuration
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
System process connects to network (likely due to code injection or exploit)
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: 433751 Sample: Vwizna57HX Startdate: 13/06/2021 Architecture: WINDOWS Score: 100 27 www.antiqueson3rd.com 2->27 29 www.linuxtechusa.com 2->29 31 ext-sq.squarespace.com 2->31 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus / Scanner detection for submitted sample 2->53 55 6 other signatures 2->55 9 Vwizna57HX.exe 3 2->9         started        13 explorer.exe 2->13         started        signatures3 process4 dnsIp5 25 C:\Users\user\AppData\...\Vwizna57HX.exe.log, ASCII 9->25 dropped 57 Writes to foreign memory regions 9->57 59 Injects a PE file into a foreign processes 9->59 16 aspnet_compiler.exe 9->16         started        33 honeyconstructionmanagement.com 158.85.87.76, 49738, 80 SOFTLAYERUS United States 13->33 35 www.ikeedojoja.net 18.182.159.189, 49739, 80 AMAZON-02US United States 13->35 37 11 other IPs or domains 13->37 61 System process connects to network (likely due to code injection or exploit) 13->61 19 systray.exe 13->19         started        file6 signatures7 process8 signatures9 39 Modifies the context of a thread in another process (thread injection) 16->39 41 Maps a DLL or memory area into another process 16->41 43 Sample uses process hollowing technique 16->43 45 Queues an APC in another process (thread injection) 16->45 47 Tries to detect virtualization through RDTSC time measurements 19->47 21 cmd.exe 1 19->21         started        process10 process11 23 conhost.exe 21->23         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/b811328fd6ddf4562a9f6066fd93193e3a344fc482dd9303c131d81888017b9a/
Threat name:
Win32.Trojan.Tiggre
Create hunting rule
Status:
Malicious
First seen:
2021-06-11 04:05:48 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210613-782qpyk8ba/
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 UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.sugene-proloser.icu/nins/
Unpacked files
SH256 hash:
4c992c8ba67fbcedd535f3e2547fdcd62c71ae8058f8f4fd4ae20cb436d35b9c
MD5 hash:
8311cb58cba72399fb29eac665e19913
SHA1 hash:
399c7c15d7cfa8b10ce9bcf053471924be87d1dd
Detections:
win_formbook_g0
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win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/357699da-8158-4a4e-ad0f-a0708a400545/
Parent samples :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 hash:
b811328fd6ddf4562a9f6066fd93193e3a344fc482dd9303c131d81888017b9a
MD5 hash:
e590634fbc2e55249d2c4044d92dcad4
SHA1 hash:
cb5c3bea23b54aba08f1efaec5f511e2544e0552
Link:
https://www.unpac.me/results/357699da-8158-4a4e-ad0f-a0708a400545/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.68
Link:
https://yomi.yoroi.company/submissions/b811328fd6ddf4562a9f6066fd93193e3a344fc482dd9303c131d81888017b9a

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
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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 b811328fd6ddf4562a9f6066fd93193e3a344fc482dd9303c131d81888017b9a

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1361709/

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