MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 03a99b633ca01928659955c896a703e45cbc1527738b53a5d6267fa8da44c030. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 03a99b633ca01928659955c896a703e45cbc1527738b53a5d6267fa8da44c030
SHA3-384 hash: 96d2245f2fabe928d2d9c810016ede33643a741e1d2837d67113489b6642a98eccfd360c137b1c4ad26a92058000fc19
SHA1 hash: aabde648407403b87204b5a7218a32cf87317fa8
MD5 hash: b9d91d3c5a64821f0e06a40fdb18cb49
humanhash: zulu-quiet-tennis-floor
File name:PURCHASE ORDER.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:458'240 bytes
First seen:2020-07-07 05:19:47 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:FoBoZYGZFzs03RF1QU+BHtCOUHKfqxxRqQ8XPXrj0+:G6deU+xBUH2qj/8
Threatray 5'133 similar samples on MalwareBazaar
TLSH 5BA48B713322AE97C63B08F4800424414FB45897666DE3F9BCC2A0DA46C9FF89E956F7
Reporter jarumlus
Tags:FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
74
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/21799/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
Possible injection to a system process
Unauthorized injection to a system process
Deleting of the original file
Unauthorized injection to a browser process
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/03a99b633ca01928659955c896a703e45cbc1527738b53a5d6267fa8da44c030/
Threat name:
ByteCode-MSIL.Trojan.Swotter
Create hunting rule
Status:
Malicious
First seen:
2020-07-07 05:21:04 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=aouzwyz4uamsqzmzkxejnjyd4rolyfjhoofvhjowez72rwseyaya._file
Verdict:
malicious
Similar samples:
0abe72d915f50b2a21fc3cafc52152db81bef2a16be4ccde68e64942bf927af1
Formbook
1a96662a743a681756e4ae5ed7a3d259cca5a50725413698c1769939a950b455
Formbook
1d1c9ee0b1adaa5a121fd70d332785395ad22538f9cdc7db44414c1604e28919
Formbook
40e20cc321623df3271e2ea7cbe75f647096a8a30737d21d0ef8ddbdc33a7f49
Formbook
4cc50598ab30ac06a20ce6a6a56deedb59ecb519a814ac791b194f49b63a7daa
Formbook
58ced5958ea8fea452bbaa34bba957927c391a0d3699542fb3702cdab990c70a
Formbook
969f04b01704c53893ba3a53a22c96c860b9a4f3784c7e79ec07210cc7e244f3
Formbook
9ebc903ca6847352aaac87d7f904fe4009c4b7b7acc9b629e5610c0f04dac4ef
Formbook
bb973839df53081c969a7e6647bdfc2d3090b43b496fe8e2244a51a604264112
Formbook
c327cc4c54ba20e649ab27c83ea7d5fcf2a596ae3f9feb50b2f5d550bcb71bf8
Formbook
+ 5'123 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
trojan spyware stealer family:formbook persistence
Link:
https://tria.ge/reports/200707-47pp4tcg1n/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
System policy modification
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious behavior: EnumeratesProcesses
Modifies Internet Explorer settings
Drops file in Program Files directory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Suspicious use of SetThreadContext
Adds Run entry to start application
Deletes itself
Reads user/profile data of web browsers
Reads user/profile data of web browsers
Adds Run entry to policy start application
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.

Malspam

Formbook

rar 1cd053b4cdcc23dc02e37fdf3622a885aaff091468d89734434afcddaed746c9

Formbook

Executable exe 03a99b633ca01928659955c896a703e45cbc1527738b53a5d6267fa8da44c030

(this sample)

  
Dropped by
MD5 a91fd31a13f7f49665825eb5baab0db7
  
Dropped by
SHA256 1cd053b4cdcc23dc02e37fdf3622a885aaff091468d89734434afcddaed746c9
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/21799/

Comments