MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f7321d982e89fafff68c30ca74dbc1612466c4385a51a0a7b203641e31b27c26. 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

SHA256 hash: f7321d982e89fafff68c30ca74dbc1612466c4385a51a0a7b203641e31b27c26
SHA3-384 hash: 21eeeed857f2f6a70d5b4299531ceaf25e91fdf41003d68e9a77de2a6a6912215960acf8653f7a298519238431a368c8
SHA1 hash: 28c712d19cd5dd53516451c5a061cf476e03991e
MD5 hash: 4e35df9e49700a4bd17f7ce87cb3e313
humanhash: twelve-mobile-potato-batman
File name:suc.exe
Download: download sample
Signature Formbook
File size:399'360 bytes
First seen:2020-08-05 07:35:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:NXbWpLZvr25z80lOlQ/b7qJwvszxZN5F7jmspMMgs0JFRdazKu0caHdBCcWYi:lA5+80lOmDuDN5F7BpMMgs840r9f
Threatray 5'128 similar samples on MalwareBazaar
TLSH B584E01C3A91566DF1BA0E3F5C3011838E26F86FDE62D28B1AB42178043E69CFD65F21
Reporter JAMESWT_WT
Tags:FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
64
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
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
Unauthorized injection to a system process
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Benign windows process drops PE files
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
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 netstat to query active network connections and open ports
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 257443 Sample: suc.exe Startdate: 05/08/2020 Architecture: WINDOWS Score: 100 50 www.xn--3e0bz50bt1dzni3qk.com 2->50 52 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->52 60 Malicious sample detected (through community Yara rule) 2->60 62 Yara detected AntiVM_3 2->62 64 Yara detected FormBook 2->64 66 6 other signatures 2->66 11 suc.exe 1 2->11         started        signatures3 process4 file5 48 C:\Users\user\AppData\Local\...\suc.exe.log, ASCII 11->48 dropped 90 Tries to detect virtualization through RDTSC time measurements 11->90 92 Injects a PE file into a foreign processes 11->92 94 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->94 15 suc.exe 11->15         started        signatures6 process7 signatures8 96 Modifies the context of a thread in another process (thread injection) 15->96 98 Maps a DLL or memory area into another process 15->98 100 Sample uses process hollowing technique 15->100 102 Queues an APC in another process (thread injection) 15->102 18 explorer.exe 3 6 15->18 injected process9 dnsIp10 54 www.hotelnossolar.com 18->54 56 www.18andlegal.com 18->56 58 parkingpage.namecheap.com 198.54.117.211, 49741, 80 NAMECHEAP-NETUS United States 18->58 42 C:\Users\user\AppData\...\t4vhb0hdnv.exe, PE32 18->42 dropped 74 System process connects to network (likely due to code injection or exploit) 18->74 76 Benign windows process drops PE files 18->76 23 NETSTAT.EXE 1 17 18->23         started        27 t4vhb0hdnv.exe 1 18->27         started        29 wscript.exe 18->29         started        31 t4vhb0hdnv.exe 18->31         started        file11 signatures12 process13 file14 44 C:\Users\user\AppData\...\J73logrv.ini, data 23->44 dropped 46 C:\Users\user\AppData\...\J73logri.ini, data 23->46 dropped 78 Detected FormBook malware 23->78 80 Tries to steal Mail credentials (via file access) 23->80 82 Tries to harvest and steal browser information (history, passwords, etc) 23->82 88 2 other signatures 23->88 33 cmd.exe 1 23->33         started        84 Injects a PE file into a foreign processes 27->84 35 t4vhb0hdnv.exe 27->35         started        38 t4vhb0hdnv.exe 27->38         started        86 Tries to detect virtualization through RDTSC time measurements 29->86 signatures15 process16 signatures17 40 conhost.exe 33->40         started        68 Modifies the context of a thread in another process (thread injection) 35->68 70 Maps a DLL or memory area into another process 35->70 72 Sample uses process hollowing technique 35->72 process18
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-08-05 06:19:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
rat evasion trojan spyware stealer family:formbook
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of SendNotifyMessage
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Deletes itself
Formbook Payload
Formbook
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Web download

Formbook

Executable exe f7321d982e89fafff68c30ca74dbc1612466c4385a51a0a7b203641e31b27c26

(this sample)

  
Delivery method
Distributed via web download

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