MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c3aa64f063330b257fdd6f3d0dd8479b3a4877140b771b4ccf3cae4e10ffe4e9. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c3aa64f063330b257fdd6f3d0dd8479b3a4877140b771b4ccf3cae4e10ffe4e9
SHA3-384 hash: 6e2fab663414e463ca2b7930c833e87d52b124c2186e6181d305e4da5ed9cf47ea98534fff0f2e1baf48494cd96be31d
SHA1 hash: 20e39feca4127e5ef51fd456a497bef44bcdb6e9
MD5 hash: 309b3e96328b7d7feacf454ab7dadb07
humanhash: march-wolfram-edward-washington
File name:INV21072020PO88934.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:476'672 bytes
First seen:2020-07-21 07:47:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:EMHzNe7ksSyRw6TBi7FNEA6K5G89Xy1ztTSX9BONrC4ap6U21K6s61d2812Ug:HgwFCAh/5y1xTg4Jsp9R6v28a
Threatray 4'944 similar samples on MalwareBazaar
TLSH CCA46A14E3B84AD9E3BB17BDE474004087B5B51AA7EAE7485B90F0ED1822761CB13F67
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: vps.salvus.co.id
Sending IP: 103.247.11.44
From: Samuel Karow <info@meritideas.com>
Subject: Re: COVID -19 Urgent Order Request
Attachment: INV21072020PO88934.img.img (contains "INV21072020PO88934.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/29846/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/392824
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 248701 Sample: INV21072020PO88934.exe Startdate: 21/07/2020 Architecture: WINDOWS Score: 100 48 www.rcxfih.men 2->48 60 Multi AV Scanner detection for domain / URL 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 Multi AV Scanner detection for dropped file 2->64 66 4 other signatures 2->66 11 INV21072020PO88934.exe 5 2->11         started        signatures3 process4 file5 46 C:\Users\user\...\INV21072020PO88934.exe.log, ASCII 11->46 dropped 80 Tries to detect virtualization through RDTSC time measurements 11->80 15 INV21072020PO88934.exe 11->15         started        signatures6 process7 signatures8 82 Modifies the context of a thread in another process (thread injection) 15->82 84 Maps a DLL or memory area into another process 15->84 86 Sample uses process hollowing technique 15->86 88 Queues an APC in another process (thread injection) 15->88 18 explorer.exe 1 6 15->18 injected process9 dnsIp10 50 www.adamsue.com 23.19.3.92, 49716, 80 LEASEWEB-USA-LAX-11US United States 18->50 52 www.renovationhost.com 18->52 54 www.mangal.voyage 18->54 38 C:\Users\user\AppData\...\updatesvati.exe, PE32 18->38 dropped 68 System process connects to network (likely due to code injection or exploit) 18->68 70 Benign windows process drops PE files 18->70 23 chkdsk.exe 1 18 18->23         started        27 updatesvati.exe 4 18->27         started        29 raserver.exe 18->29         started        file11 signatures12 process13 file14 40 C:\Users\user\AppData\...\O5Mlogrv.ini, data 23->40 dropped 42 C:\Users\user\AppData\...\O5Mlogri.ini, data 23->42 dropped 44 C:\Users\user\AppData\...\O5Mlogrf.ini, data 23->44 dropped 72 Detected FormBook malware 23->72 74 Tries to steal Mail credentials (via file access) 23->74 76 Tries to harvest and steal browser information (history, passwords, etc) 23->76 78 3 other signatures 23->78 31 cmd.exe 1 23->31         started        33 updatesvati.exe 27->33         started        signatures15 process16 signatures17 36 conhost.exe 31->36         started        56 Modifies the context of a thread in another process (thread injection) 33->56 58 Maps a DLL or memory area into another process 33->58 process18
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c3aa64f063330b257fdd6f3d0dd8479b3a4877140b771b4ccf3cae4e10ffe4e9/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-21 05:35:59 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yovgj4ddgmfsk765n46q3wchtm5eq5yubn3rwtgphsxe4eh74tuq._file
Verdict:
malicious
Label(s):
netwirerc
Create hunting rule
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a4cfc3715bff5df4b930adfd46eda975666cafebd5e538910680f44d105170a3
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ed3e93996b60fbaeb82c59f62dc3dcee809b229748ad7772829a8f738e307cbd
FormBook
+ 4'934 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/200721-5jpytla5ax/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Modifies Internet Explorer settings
Suspicious use of FindShellTrayWindow
Suspicious use of AdjustPrivilegeToken
Suspicious use of SendNotifyMessage
System policy modification
Drops file in Program Files directory
Suspicious use of SetThreadContext
Deletes itself
Reads user/profile data of web browsers
Adds policy Run key to start application
Formbook
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c3aa64f063330b257fdd6f3d0dd8479b3a4877140b771b4ccf3cae4e10ffe4e9

File information

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

Malspam

FormBook

img 85de0dd1b7a5a76a8f336af74a9cc1edc715cb352b6cd96524a6ebb848e3ce59

FormBook

Executable exe c3aa64f063330b257fdd6f3d0dd8479b3a4877140b771b4ccf3cae4e10ffe4e9

(this sample)

  
Dropped by
MD5 632b6ade82a662e2f5b3c61be4eaf392
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/29846/
  
Dropped by
SHA256 85de0dd1b7a5a76a8f336af74a9cc1edc715cb352b6cd96524a6ebb848e3ce59

Comments