MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 60dac53124b3a9155d09cad5c886eb32ff5a5bea1329b527dcf5eb7cf93a3f74. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 60dac53124b3a9155d09cad5c886eb32ff5a5bea1329b527dcf5eb7cf93a3f74
SHA3-384 hash: 51ccc69a9bdc406e515be01b66331c87300e2c60fd3cc94e79e59e7fadc2f20fb3e13ff03851dccfb0b6fc650b04f463
SHA1 hash: f8be915c0f9e7080a34c54ca2a801253b5367820
MD5 hash: 46036887065bed3621ceebe36e3e7719
humanhash: ink-tennis-romeo-early
File name:t_oUfbGz.txt
Download: download sample
Signature Formbook
Create hunting rule
File size:418'304 bytes
First seen:2020-08-31 09:14:30 UTC
Last seen:2020-08-31 10:09:26 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 6144:GZYZWBXFXfMrKmDCprGeXNdtrlqs2wQoPiWw+5xJ:Bxcpr/XNdOs27+iWwQ
Threatray 2'248 similar samples on MalwareBazaar
TLSH 6A945B3A35928024D93902B2546C79C3F6359B0837C58B2FA3DB834C5F1276FB76969E
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: hwsrv-766529.hostwindsdns.com
Sending IP: 104.168.218.25
From: info@jatholding.com
Subject: Confirm Product Availability
Attachment: 2012779.xls

FormBook payload URL:
https://s3.rokket.space/t_oUfbGz.txt

Intelligence

File Origin
# of uploads :
2
# of downloads :
144
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/53330/
Detection(s):
SecuriteInfo.com.Formbook.26767.5646.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %temp% directory
Running batch commands
Launching a process
Creating a file
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
78 / 100
Link:
https://www.joesandbox.com/analysis/455078
Signature
.NET source code contains very large array initializations
Creates an autostart registry key pointing to binary in C:\Windows
Drops PE files to the user root directory
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
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 279914 Sample: t_oUfbGz.txt Startdate: 31/08/2020 Architecture: WINDOWS Score: 78 42 Malicious sample detected (through community Yara rule) 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 Yara detected FormBook 2->46 48 2 other signatures 2->48 8 t_oUfbGz.exe 7 2->8         started        12 pcalua.exe 1 1 2->12         started        14 pcalua.exe 1 2->14         started        process3 file4 30 C:\Users\user\mghd.exe, PE32 8->30 dropped 32 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 8->32 dropped 34 C:\Users\user\mghd.exe:Zone.Identifier, ASCII 8->34 dropped 36 C:\Users\user\AppData\...\t_oUfbGz.exe.log, ASCII 8->36 dropped 58 Drops PE files to the user root directory 8->58 16 mghd.exe 3 8->16         started        19 cmd.exe 1 8->19         started        signatures5 process6 signatures7 38 Multi AV Scanner detection for dropped file 16->38 40 Machine Learning detection for dropped file 16->40 21 AddInProcess32.exe 16->21         started        24 reg.exe 1 1 19->24         started        26 conhost.exe 19->26         started        process8 signatures9 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 28 explorer.exe 21->28 injected 56 Creates an autostart registry key pointing to binary in C:\Windows 24->56 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/60dac53124b3a9155d09cad5c886eb32ff5a5bea1329b527dcf5eb7cf93a3f74/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-31 06:25:41 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mdnmkmjewourkxijzlk4rbxlgl7vuw7kcmu3kj646xvxz6j2h52a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
trickbot
Create hunting rule
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d9ba192982200a73ca54ce3c9f10c43a185e0d99864eee685bc7ba70c311110a
Formbook
+ 2'238 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
agilenet rat persistence trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/200831-mz1jg54rzj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Obfuscated with Agile.Net obfuscator
Executes dropped EXE
Formbook Payload
Formbook
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/60dac53124b3a9155d09cad5c886eb32ff5a5bea1329b527dcf5eb7cf93a3f74

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Malspam

Formbook

Excel file xls dfa3120842683d00fa303ee15ea8ad6ad961ffed57da5fd0ecb1ba892b3895c8

Formbook

Executable exe 60dac53124b3a9155d09cad5c886eb32ff5a5bea1329b527dcf5eb7cf93a3f74

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/447325/
  
Dropped by
MD5 f31bcc2095df412a3888eb33b36f78df
  
Dropped by
SHA256 dfa3120842683d00fa303ee15ea8ad6ad961ffed57da5fd0ecb1ba892b3895c8
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/53330/

Comments