MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 22c77b873f0fb566c2d776f77f3918f6e3882913cdcce61beca7d7e64f3a302d. 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 2 File information Comments

SHA256 hash: 22c77b873f0fb566c2d776f77f3918f6e3882913cdcce61beca7d7e64f3a302d
SHA3-384 hash: 158e711a399e1701dd3a14c4d154a385e095c9a39b38aa915ab7ab9bcfa3a530ef3f65c67023da3c5aae3a291857e2a1
SHA1 hash: 0a7db7a00c2c39788868c794818cab822d4aec9a
MD5 hash: 53ed7a6bcd581af3520a6d1906d5dfcf
humanhash: wyoming-eighteen-pasta-batman
File name:53ed7a6bcd581af3520a6d1906d5dfcf
Download: download sample
Signature Formbook
File size:172'032 bytes
First seen:2020-10-25 08:09:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 3072:qaPdxPw9rZCCc+aK/L0L8Ea0MKbjR4glwae8swjnI94CCd1sV:r+C+aUwIEaPKbjR4F8swjnvCCsV
Threatray 2'696 similar samples on MalwareBazaar
TLSH 5CF3AF32E551C435E27241B5BA7D0B7B883E0E38325961E6E3B129A06FB44E5B52E31F
Reporter seifreed
Tags:FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
90
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
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
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Benign windows process drops PE files
Detected FormBook malware
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Steal Google chrome login data
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 netstat to query active network connections and open ports
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 303761 Sample: iSrBUSEJzI Startdate: 25/10/2020 Architecture: WINDOWS Score: 100 64 Malicious sample detected (through community Yara rule) 2->64 66 Antivirus detection for dropped file 2->66 68 Antivirus / Scanner detection for submitted sample 2->68 70 9 other signatures 2->70 9 iSrBUSEJzI.exe 2->9         started        process3 signatures4 72 Modifies the context of a thread in another process (thread injection) 9->72 74 Maps a DLL or memory area into another process 9->74 76 Sample uses process hollowing technique 9->76 78 2 other signatures 9->78 12 explorer.exe 3 7 9->12 injected process5 dnsIp6 44 thevandenplas.com 67.23.242.109, 49711, 49712, 80 DIMENOCUS United States 12->44 46 w0x21.com 184.168.221.37, 49710, 80 AS-26496-GO-DADDY-COM-LLCUS United States 12->46 48 4 other IPs or domains 12->48 40 C:\Users\user\AppData\...\updatewfi06.exe, PE32 12->40 dropped 42 C:\Program Files (x86)\...\updatewfi06.exe, PE32 12->42 dropped 84 System process connects to network (likely due to code injection or exploit) 12->84 86 Benign windows process drops PE files 12->86 17 chkdsk.exe 1 18 12->17         started        20 updatewfi06.exe 12->20         started        22 updatewfi06.exe 12->22         started        24 wscript.exe 12->24         started        file7 signatures8 process9 signatures10 50 Detected FormBook malware 17->50 52 Tries to steal Mail credentials (via file access) 17->52 54 Tries to harvest and steal browser information (history, passwords, etc) 17->54 26 cmd.exe 2 17->26         started        30 cmd.exe 1 17->30         started        56 Modifies the context of a thread in another process (thread injection) 20->56 58 Maps a DLL or memory area into another process 20->58 60 Sample uses process hollowing technique 20->60 32 NETSTAT.EXE 20->32         started        62 Tries to detect virtualization through RDTSC time measurements 24->62 process11 file12 38 C:\Users\user\AppData\Local\Temp\DB1, SQLite 26->38 dropped 80 Tries to harvest and steal browser information (history, passwords, etc) 26->80 34 conhost.exe 26->34         started        36 conhost.exe 30->36         started        82 Tries to detect virtualization through RDTSC time measurements 32->82 signatures13 process14
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2020-08-20 17:45:00 UTC
AV detection:
28 of 29 (96.55%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Malware Config
C2 Extraction:
http://www.flycoz.com/hu/
Unpacked files
SH256 hash:
22c77b873f0fb566c2d776f77f3918f6e3882913cdcce61beca7d7e64f3a302d
MD5 hash:
53ed7a6bcd581af3520a6d1906d5dfcf
SHA1 hash:
0a7db7a00c2c39788868c794818cab822d4aec9a
Detections:
win_formbook_g0 win_formbook_auto
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
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information


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

  
Delivery method
Other

Comments