MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4c2c7795496056ece8e0de136ae63b316508f15bfa28582ceafbb190abfd790. 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: 5


Intelligence 5 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d4c2c7795496056ece8e0de136ae63b316508f15bfa28582ceafbb190abfd790
SHA3-384 hash: c6264daa7e987480c4a20a8adfb5dc50859b3e6020802e79447a98b78444955d829f1818cf4a8a080229c23041a0f8b8
SHA1 hash: 8d9b566018fec73fb4dc5ac9cfcb7bb505ebf67f
MD5 hash: 020a647bece9a854fab2e6e544de336b
humanhash: alabama-two-single-delaware
File name:YKBGunlukEkstre.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:455'680 bytes
First seen:2020-07-07 09:30:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:/wWnDu+Z28xW1Ks1XJxMEcm+lRjhswXMfZ9tTp0r9dGQQ1OU+BHtCOA7AunuDZuT:JU+xBA7PnulKFWU
Threatray 5'206 similar samples on MalwareBazaar
TLSH BEA49C3222A5AF86C93A8FF5654425004FB42D6F627DD3696DC070CB65BAF404EA1FB3
Reporter abuse_ch
Tags:exe FormBook geo TUR


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: lin4.teknikdata.com
Sending IP: 178.210.165.247
From: YAPIKREDI <ekstre@ekstre.yapikredi.com.tr>
Subject: YAPIKREDI C/H Ekstre 07/07/2020 11:37
Attachment: YKBGunlukEkstre.r00 (contains "YKBGunlukEkstre.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
81
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/22154/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Using the Windows Management Instrumentation requests
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d4c2c7795496056ece8e0de136ae63b316508f15bfa28582ceafbb190abfd790/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2020-07-07 09:32:07 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2tbmo6kusycw5tuobxqtnltdwmlfbdyvx6rilawov65rscv726ia._file
Verdict:
malicious
Similar samples:
06078629129c4bc1abb214bbbe1bfadca65b618ac9f6f93fc3b22d0a37740f5b
FormBook
3305e88d2594770eced662a94933358d2d1d57534aebb9c6b7876e50de58a8a1
FormBook
52e01cac4f5319a7d1177aae77861b4ad8f77b26581d089e948344d0e608b80b
FormBook
548f6937985adb04cce6bda4127f3d2af247feada21eda348d1d6a0e8dd7d2c7
FormBook
7369dcfec21741f712f75662e29752b6a55fcacd1fbf76b9948d40b82e89b9a0
FormBook
902151e059b55427744a6947563251045a98a471b9a84ace8b286763e788c258
FormBook
9c7b335e031c3c2fde1e7d75cbe08bd0951b0cb8a327fa4bd3e54c4c59d32936
FormBook
b1d72f54b46528f1dd2265231ea91a8dcc2a4461dc897e1f7bd8d5e915f189f2
FormBook
c53c864741e005d5b04ca3349e81597e61b8ee3ecd7a03cddd2d15d955cbb04a
FormBook
d104548b154ac28142944b839993b9f0c8ad45d42a3e72d888aa8ba0e22562fd
FormBook
+ 5'196 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
spyware persistence trojan stealer family:formbook
Link:
https://tria.ge/reports/200707-jn4xjaxeya/
Behaviour
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Modifies Internet Explorer settings
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
System policy modification
Suspicious use of AdjustPrivilegeToken
Drops file in Program Files directory
Suspicious use of SetThreadContext
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks whether UAC is enabled
Maps connected drives based on registry
Deletes itself
Checks BIOS information in registry
Reads user/profile data of web browsers
Checks BIOS information in registry
Looks for VMWare Tools registry key
Adds Run entry to policy start application
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Looks for VirtualBox Guest Additions in registry
Formbook
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Rule name:win_formbook_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT

File information

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

a182777e5556db7b84ae551d1d648336

FormBook

Executable exe d4c2c7795496056ece8e0de136ae63b316508f15bfa28582ceafbb190abfd790

(this sample)

  
Dropped by
MD5 a182777e5556db7b84ae551d1d648336
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/22154/

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