MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c7ab7dce5d2ed6eceaa6047479f76981c101e436b16d91f857fd8a573859fe14. 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: c7ab7dce5d2ed6eceaa6047479f76981c101e436b16d91f857fd8a573859fe14
SHA3-384 hash: 2e08435e010a60fe690b459b840f6e3337e34657a3d41f7957b43dfe5dc62ffbcdea53605ba0cefba1bbbf91e40b224d
SHA1 hash: 07e9d1687085a8c9383d984f68555d2685da0d3f
MD5 hash: b7dd8e9794cc20dc6024efc8084a7956
humanhash: music-harry-oregon-yankee
File name:cotizacio.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:710'144 bytes
First seen:2020-08-05 07:21:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 89f9603ab119f487b36c91fab25c064e (8 x AgentTesla, 4 x Loki, 2 x MassLogger)
ssdeep 12288:w9N5xdEzBMwNXyseVY06gkdo7AL8Mj0a2Iq5V8nVt3e2coKRnMNa0:EnczvIYl83a2L8nSNoKRnMNa0
Threatray 5'329 similar samples on MalwareBazaar
TLSH 42E49D22A2F14433D1E7273DDD2B57B8582BBE5129E868462FE81D4C7E39781392D393
Reporter abuse_ch
Tags:ESP exe FormBook geo


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: pointamericas.com
Sending IP: 212.114.52.167
From: Marina von Bergen <mvonbergen@pointamericas.com>
Subject: REMITO COTIZACIO
Attachment: COTIZACION.zip (contains "cotizacio.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
73
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/39079/
Detection(s):
SecuriteInfo.com.Win32.Herz.B.23927.UNOFFICIAL
Create hunting rule

PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Launching a process
Sending a UDP request
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/410356
Signature
Benign windows process drops PE files
Contains functionality to detect sleep reduction / modifications
Detected FormBook malware
Detected unpacking (changes PE section rights)
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses netsh to modify the Windows network and firewall settings
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 257423 Sample: cotizacio.exe Startdate: 05/08/2020 Architecture: WINDOWS Score: 100 49 www.troughaucmcil.win 2->49 57 Malicious sample detected (through community Yara rule) 2->57 59 Detected unpacking (changes PE section rights) 2->59 61 Yara detected FormBook 2->61 63 5 other signatures 2->63 11 cotizacio.exe 2->11         started        signatures3 process4 signatures5 81 Detected unpacking (changes PE section rights) 11->81 83 Maps a DLL or memory area into another process 11->83 85 Tries to detect virtualization through RDTSC time measurements 11->85 87 Contains functionality to detect sleep reduction / modifications 11->87 14 cotizacio.exe 11->14         started        process6 signatures7 89 Modifies the context of a thread in another process (thread injection) 14->89 91 Maps a DLL or memory area into another process 14->91 93 Sample uses process hollowing technique 14->93 95 Queues an APC in another process (thread injection) 14->95 17 explorer.exe 1 6 14->17 injected process8 dnsIp9 43 7472a.989.sb 43.226.16.144, 49737, 80 SUNHK-DATA-AS-APSunNetworkHongKongLimited-HongKong Hong Kong 17->43 45 balancer.wixdns.net 35.246.6.109, 49738, 49739, 49740 GOOGLEUS United States 17->45 47 5 other IPs or domains 17->47 37 C:\Users\user\AppData\Local\...\helpc4m.exe, PE32 17->37 dropped 65 System process connects to network (likely due to code injection or exploit) 17->65 67 Benign windows process drops PE files 17->67 22 netsh.exe 1 17 17->22         started        26 helpc4m.exe 17->26         started        28 msiexec.exe 17->28         started        file10 signatures11 process12 file13 39 C:\Users\user\AppData\...\JP6logrv.ini, data 22->39 dropped 41 C:\Users\user\AppData\...\JP6logri.ini, data 22->41 dropped 69 Detected FormBook malware 22->69 71 Tries to steal Mail credentials (via file access) 22->71 73 Tries to harvest and steal browser information (history, passwords, etc) 22->73 75 Modifies the context of a thread in another process (thread injection) 22->75 30 cmd.exe 1 22->30         started        77 Maps a DLL or memory area into another process 26->77 32 helpc4m.exe 26->32         started        79 Tries to detect virtualization through RDTSC time measurements 28->79 signatures14 process15 signatures16 35 conhost.exe 30->35         started        51 Modifies the context of a thread in another process (thread injection) 32->51 53 Maps a DLL or memory area into another process 32->53 55 Sample uses process hollowing technique 32->55 process17
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c7ab7dce5d2ed6eceaa6047479f76981c101e436b16d91f857fd8a573859fe14/
Threat name:
Win32.Infostealer.Fareit
Create hunting rule
Status:
Malicious
First seen:
2020-08-05 07:15:10 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=y6vx3ts5f3loz2vgar2ht53jqhaqdzbwwfwzd6cx7wffoocz7yka._file
Verdict:
malicious
Label(s):
netwirerc
Create hunting rule
Similar samples:
2a093b2213d7d589020d69e76fdfd33b441ed125664cb3247d25e9103744011c
FormBook
30bbf2043054b92e495bbd55f67e43b8eafce430bf31d8aaa4899385e503cdbe
FormBook
52f217cdebe83217297bedc352fac2e475e293e6cad52a1335b3641eeb8c412b
FormBook
81c7545ad871b477660e586efb7ce289931d3bc089ba4c0c9f615ecb144f0a76
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8606768cb758ba8379659f65220250ebc1c491dabd668e7f98663571419cadf2
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9c0d3c463792d704909de3a04cd7a6d31f8094301e8e24950af31cdc5e9f2838
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9d545cae8b73e11800aaf794b2919bb8972511e4e217eaf1a51c3f38c17bb412
FormBook
9daa8e87928b88143b9482b989764524754c86d142027ccaad1fc452f52c1765
FormBook
b1ab330d8407adbc0731fd66b869bca53515ccf732d1ad498515e5e04f993de4
FormBook
c7544c2d4180660fc3a96f3b66b5caa0e168dcfbb35a870f1c576a152ed62348
FormBook
+ 5'319 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook persistence evasion
Link:
https://tria.ge/reports/200805-49vyhpyhv6/
Behaviour
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Drops file in Program Files directory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Adds Run key to start application
Reads user/profile data of web browsers
Deletes itself
Formbook Payload
Formbook
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Cryptor
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c7ab7dce5d2ed6eceaa6047479f76981c101e436b16d91f857fd8a573859fe14

File information

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

Malspam

FormBook

zip 20e0e74cebc7272fb81eec04cf3f5eaa2410dd633540135c8b5fc8da04005d96

FormBook

Executable exe c7ab7dce5d2ed6eceaa6047479f76981c101e436b16d91f857fd8a573859fe14

(this sample)

  
Dropped by
MD5 bbbcd58277207d6f76f5a6490456ac8b
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/39079/
  
Dropped by
SHA256 20e0e74cebc7272fb81eec04cf3f5eaa2410dd633540135c8b5fc8da04005d96

Comments