MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 337463b61d271e4826a1c570e565fe58f42548247b20c9cc8d52e7342943606e. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments

SHA256 hash: 337463b61d271e4826a1c570e565fe58f42548247b20c9cc8d52e7342943606e
SHA3-384 hash: 1b4c51c4cb734e60dd8dcb24d48387cb345baa156e579bb6d3c7755d30d25edbcc097fa6f10d7d3cc478ca851d619a7d
SHA1 hash: f4d3fc51282ac7a5fd8669cc726ed1f2150a8a54
MD5 hash: 18921b96ab918045338a827acf1d2fb8
humanhash: zebra-berlin-twenty-item
File name:pedir pdf.exe
Download: download sample
Signature Formbook
File size:1'639'925 bytes
First seen:2020-10-19 06:43:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:rAHnh+eWsN3skA4RV1Hom2KXMmHajW9ZVrGZnNMOwpPkD3C6Hes56vjFI:Gh+ZkldoPK8YaabVrGZnyOSkzh6vpI
Threatray 2'520 similar samples on MalwareBazaar
TLSH 6975BF126759E1AFFF9663720E17EA042179A8A44022762EA3DC1FFCE47D47D323E152
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
94
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Creating a process from a recently created file
Creating a window
Launching the default Windows debugger (dwwin.exe)
Sending a UDP request
Enabling autorun by creating a file
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
AutoIt script contains suspicious strings
Binary is likely a compiled AutoIt script file
Detected FormBook malware
Machine Learning detection for dropped file
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
PE file has a writeable .text section
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Drops script at startup location
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)
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 299884 Sample: pedir pdf.exe Startdate: 19/10/2020 Architecture: WINDOWS Score: 100 80 Malicious sample detected (through community Yara rule) 2->80 82 Antivirus detection for dropped file 2->82 84 Antivirus / Scanner detection for submitted sample 2->84 86 11 other signatures 2->86 10 pedir pdf.exe 5 2->10         started        14 wscript.exe 1 2->14         started        process3 file4 58 C:\Users\user\...\igfxCUIService.exe, PE32 10->58 dropped 60 C:\Users\user\Desktop\pedir pdfmgr.exe, PE32 10->60 dropped 62 C:\Users\user\AppData\...\lpremove.url, MS 10->62 dropped 98 Maps a DLL or memory area into another process 10->98 16 pedir pdf.exe 10->16         started        19 pedir pdfmgr.exe 10->19         started        21 pedir pdf.exe 10->21         started        23 igfxCUIService.exe 1 14->23         started        signatures5 process6 file7 68 Modifies the context of a thread in another process (thread injection) 16->68 70 Maps a DLL or memory area into another process 16->70 72 Sample uses process hollowing technique 16->72 74 Queues an APC in another process (thread injection) 16->74 26 explorer.exe 16->26 injected 30 WerFault.exe 23 9 19->30         started        54 C:\Users\user\...\igfxCUIServicemgr.exe, PE32 23->54 dropped 76 Antivirus detection for dropped file 23->76 78 Multi AV Scanner detection for dropped file 23->78 32 igfxCUIServicemgr.exe 23->32         started        signatures8 process9 dnsIp10 64 www.bepbosch.com 26->64 66 HDRedirect-LB5-1afb6e2973825a56.elb.us-east-1.amazonaws.com 23.20.239.12, 49739, 80 AMAZON-AESUS United States 26->66 100 System process connects to network (likely due to code injection or exploit) 26->100 34 cmmon32.exe 1 18 26->34         started        102 Antivirus detection for dropped file 32->102 104 Multi AV Scanner detection for dropped file 32->104 106 Machine Learning detection for dropped file 32->106 38 WerFault.exe 19 9 32->38         started        signatures11 process12 file13 50 C:\Users\user\AppData\...\86Mlogrv.ini, data 34->50 dropped 52 C:\Users\user\AppData\...\86Mlogri.ini, data 34->52 dropped 88 Detected FormBook malware 34->88 90 Tries to steal Mail credentials (via file access) 34->90 92 Tries to harvest and steal browser information (history, passwords, etc) 34->92 94 3 other signatures 34->94 40 cmd.exe 2 34->40         started        44 cmd.exe 1 34->44         started        signatures14 process15 file16 56 C:\Users\user\AppData\Local\Temp\DB1, SQLite 40->56 dropped 96 Tries to harvest and steal browser information (history, passwords, etc) 40->96 46 conhost.exe 40->46         started        48 conhost.exe 44->48         started        signatures17 process18
Threat name:
Win32.Worm.Ramnit
Status:
Malicious
First seen:
2020-10-18 22:55:06 UTC
AV detection:
28 of 28 (100.00%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
upx rat spyware trojan stealer family:formbook persistence
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Drops file in Program Files directory
Suspicious use of SetThreadContext
Drops startup file
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
UPX packed file
Adds policy Run key to start application
Formbook Payload
ServiceHost packer
Formbook
Malware Config
C2 Extraction:
http://www.joomlas123.info/n7ak/
Unpacked files
SH256 hash:
2e774712cc111cd4eb3a59b5a6f58fa2be9080813ed316f75bf99cdc66f60692
MD5 hash:
0fbea7227adab7d43daa5c3d1645bb1d
SHA1 hash:
536b3c19db69d59f55b55e2b79760b7c5fcced6b
SH256 hash:
337463b61d271e4826a1c570e565fe58f42548247b20c9cc8d52e7342943606e
MD5 hash:
18921b96ab918045338a827acf1d2fb8
SHA1 hash:
f4d3fc51282ac7a5fd8669cc726ed1f2150a8a54
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:AutoIT_Compiled
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE).
Rule name:suspicious_packer_section
Author:@j0sm1
Description:The packer/protector section names/keywords
Reference:http://www.hexacorn.com/blog/2012/10/14/random-stats-from-1-2m-samples-pe-section-names/

File information


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

Malspam

Formbook

Executable exe 337463b61d271e4826a1c570e565fe58f42548247b20c9cc8d52e7342943606e

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments