MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 49fd1fd4167dc08352e383bd51337af9206603336040aadacc85fe5a9226ce6e. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 49fd1fd4167dc08352e383bd51337af9206603336040aadacc85fe5a9226ce6e
SHA3-384 hash: 6c97716ebbb06a48508f8fbb762ef08381f1c41a901c2d1fb475a1809d208ade7f6f12e6d2b8446ff425bfea7157e080
SHA1 hash: a9f2eaa442209e99e6262709ac540714af5d9197
MD5 hash: 1d079164a298a989abd98106de0f6342
humanhash: grey-jupiter-chicken-wolfram
File name:FACUTRA # 2853- 6712.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:899'072 bytes
First seen:2020-08-04 11:16:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:DaHcPgYxmOE+2Do4pPeRH89fq4hq3PJW9SyZOPfzevkB94c/YDVgE:fIYxPeVZlw4h/vkgcYVgE
Threatray 5'330 similar samples on MalwareBazaar
TLSH F9158DC1E5808950DC195B3A48334DA14B33BD7BEF72960E749CB6396BF72C65A21B83
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: dongsonvina.co
Sending IP: 111.90.145.114
From: Boehm, Alexander <Boehm@hysic.co>
Subject: RES: RES: NEW ORDER # 2853- 6712
Attachment: FACUTRA 2853- 6712.rar (contains "FACUTRA # 2853- 6712.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/38564/
Detection(s):
SecuriteInfo.com.CIL.HeapOverride.Heur.16349.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
Enabling autorun by creating a file
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/409120
Signature
Benign windows process drops PE files
Detected FormBook malware
Injects a PE file into a foreign processes
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
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 256800 Sample: FACUTRA # 2853- 6712.exe Startdate: 04/08/2020 Architecture: WINDOWS Score: 100 70 www.soudestock.com 2->70 78 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->78 80 Malicious sample detected (through community Yara rule) 2->80 82 Sigma detected: Scheduled temp file as task from temp location 2->82 84 8 other signatures 2->84 11 FACUTRA # 2853- 6712.exe 5 2->11         started        signatures3 process4 file5 58 C:\Users\user\AppData\Roaming\kofuPLwge.exe, PE32 11->58 dropped 60 C:\Users\...\kofuPLwge.exe:Zone.Identifier, ASCII 11->60 dropped 62 C:\Users\user\AppData\Local\...\tmp9D3F.tmp, XML 11->62 dropped 64 C:\Users\...\FACUTRA # 2853- 6712.exe.log, ASCII 11->64 dropped 96 Injects a PE file into a foreign processes 11->96 15 FACUTRA # 2853- 6712.exe 11->15         started        18 schtasks.exe 1 11->18         started        signatures6 process7 signatures8 110 Modifies the context of a thread in another process (thread injection) 15->110 112 Maps a DLL or memory area into another process 15->112 114 Sample uses process hollowing technique 15->114 116 Queues an APC in another process (thread injection) 15->116 20 explorer.exe 4 6 15->20 injected 25 conhost.exe 18->25         started        process9 dnsIp10 72 www.bymissjane.com 199.34.228.140, 49745, 80 WEEBLYUS United States 20->72 74 park.namepre.com 47.90.30.95, 49746, 49747, 49748 CNNIC-ALIBABA-US-NET-APAlibabaUSTechnologyCoLtdC United States 20->74 76 2 other IPs or domains 20->76 56 C:\Users\user\AppData\Local\...\vgal0ht.exe, PE32 20->56 dropped 86 System process connects to network (likely due to code injection or exploit) 20->86 88 Benign windows process drops PE files 20->88 27 systray.exe 1 17 20->27         started        31 vgal0ht.exe 3 20->31         started        33 vgal0ht.exe 2 20->33         started        35 3 other processes 20->35 file11 signatures12 process13 file14 66 C:\Users\user\AppData\...\y0Ologrv.ini, data 27->66 dropped 68 C:\Users\user\AppData\...\y0Ologri.ini, data 27->68 dropped 98 Detected FormBook malware 27->98 100 Tries to steal Mail credentials (via file access) 27->100 102 Tries to harvest and steal browser information (history, passwords, etc) 27->102 108 2 other signatures 27->108 37 cmd.exe 1 27->37         started        104 Injects a PE file into a foreign processes 31->104 39 vgal0ht.exe 31->39         started        42 schtasks.exe 31->42         started        44 vgal0ht.exe 31->44         started        46 vgal0ht.exe 33->46         started        48 schtasks.exe 33->48         started        106 Tries to detect virtualization through RDTSC time measurements 35->106 signatures15 process16 signatures17 50 conhost.exe 37->50         started        90 Modifies the context of a thread in another process (thread injection) 39->90 92 Maps a DLL or memory area into another process 39->92 94 Sample uses process hollowing technique 39->94 52 conhost.exe 42->52         started        54 conhost.exe 48->54         started        process18
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/49fd1fd4167dc08352e383bd51337af9206603336040aadacc85fe5a9226ce6e/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-04 11:18:09 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jh6r7vawpxaiguxdqo6vcm327eqgmaztmbakvwwmqx7fvergzzxa._file
Verdict:
malicious
Similar samples:
2d15cd4ea7c6a5ff5f7f47acfedf52c6cb081a5791f8aa03a9a88636b58550ca
FormBook
4e68480fbf23cd8b7efedd98614f1cd26032b955b4fc721e6622c62e4bb9f447
FormBook
6c7d10402361556d564ce74e16a05024a4e0ad31da03b98fb69d4f7c0079730f
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b26b6fd030ce29451797859444a1bd9e0a717b06a2909406e68edf183887632e
FormBook
ba988eeaeef4b7e706308c40094dd0fe2146918e0386565cc2a14243e3f0aa69
FormBook
d18ed67b05d0bbd6dfaba77a6053c92674bfef8abc8c7aae7c17f703adc6ea5c
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d19a1337bd1fd3534eabbbdf6db6e402de9c2996edf3b4bae1bb10e85d7b5bde
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d4943254bdebb92508362f26bd91da77d2aaecbcd73f086b917055c704a993a5
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f0a859474803c2ba7687f71bdc33ed9296ef1a18920d6c3fb425fc30ae266826
FormBook
f46ea866a034694bb34ddd4207ae960a5e43390ca9f9ad58daf4d14c42dbbc79
FormBook
+ 5'320 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat evasion trojan persistence spyware stealer family:formbook
Link:
https://tria.ge/reports/200804-zpxjelaqqj/
Behaviour
Modifies Internet Explorer settings
Suspicious use of SendNotifyMessage
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
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:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/49fd1fd4167dc08352e383bd51337af9206603336040aadacc85fe5a9226ce6e

File information

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

Malspam

FormBook

rar 867845d4a2f081c91ab59e36e534d1f08f443ef017247e8840ac883fd467070e

FormBook

Executable exe 49fd1fd4167dc08352e383bd51337af9206603336040aadacc85fe5a9226ce6e

(this sample)

  
Dropped by
MD5 2a17b496a1567330dcf3a5a2cfb6296a
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/38564/
  
Dropped by
SHA256 867845d4a2f081c91ab59e36e534d1f08f443ef017247e8840ac883fd467070e

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