MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9404982e0cf941d6103e40246a6689d91be00c03c8d9072e42ebf56bd9080492. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments

SHA256 hash: 9404982e0cf941d6103e40246a6689d91be00c03c8d9072e42ebf56bd9080492
SHA3-384 hash: f04c2153fddf8d14893c560ee122f68b6e3c95d1282ac61b4d7ce551c804d39ab302f947713d8122c11341420a6d8d30
SHA1 hash: d6d8c3c4a7e9f777b9c4383120b057be18a4ad41
MD5 hash: 6244f4e218cef1f89dbe0a96374d5eaa
humanhash: fillet-black-social-kentucky
File name:AWB##29721.PDF.exe
Download: download sample
Signature Formbook
File size:472'064 bytes
First seen:2021-10-19 02:17:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'207 x SnakeKeylogger)
ssdeep 12288:/9C6LnDSQHqERk1yoqGejnL9eQWd/LhsSqoZxPsFWZ6b:/1nDs1zO1SqCslb
Threatray 10'614 similar samples on MalwareBazaar
TLSH T137A4F0167164CD12C2A823F9C47EA02603B5BC135522D30A6EE97ECB3A657D2441EFEF
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
225
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
83%
Tags:
obfuscated packed
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
Self deletion via cmd delete
Sigma detected: Suspicious Double Extension
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
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 505211 Sample: AWB##29721.PDF.exe Startdate: 19/10/2021 Architecture: WINDOWS Score: 100 29 Found malware configuration 2->29 31 Malicious sample detected (through community Yara rule) 2->31 33 Yara detected AntiVM3 2->33 35 7 other signatures 2->35 9 AWB##29721.PDF.exe 3 2->9         started        process3 signatures4 37 Tries to detect virtualization through RDTSC time measurements 9->37 39 Injects a PE file into a foreign processes 9->39 12 AWB##29721.PDF.exe 9->12         started        process5 signatures6 41 Modifies the context of a thread in another process (thread injection) 12->41 43 Maps a DLL or memory area into another process 12->43 45 Sample uses process hollowing technique 12->45 47 Queues an APC in another process (thread injection) 12->47 15 chkdsk.exe 12->15         started        18 explorer.exe 12->18 injected process7 dnsIp8 49 Self deletion via cmd delete 15->49 51 Modifies the context of a thread in another process (thread injection) 15->51 53 Maps a DLL or memory area into another process 15->53 55 Tries to detect virtualization through RDTSC time measurements 15->55 21 cmd.exe 1 15->21         started        25 www.accarwash-hub.com 156.242.202.179, 49793, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK Seychelles 18->25 27 www.biggersinsurance.com 18->27 57 System process connects to network (likely due to code injection or exploit) 18->57 signatures9 process10 process11 23 conhost.exe 21->23         started       
Threat name:
Win32.Spyware.Noon
Status:
Malicious
First seen:
2021-10-19 00:06:23 UTC
AV detection:
10 of 45 (22.22%)
Threat level:
  2/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:gr1c rat spyware stealer suricata trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.illusiontrick.com/gr1c/
Unpacked files
SH256 hash:
d6e5fbfe038957847ea19ad7ad19c76a2f50ad4ce90baabb9171afba0012fbb5
MD5 hash:
a4d27c2b9cbad03fdebadae6723ccf0e
SHA1 hash:
dd30e2c93f7086847b1f0fac7d61f8ead53e590f
SH256 hash:
7b4ba24781e21b310e2749bc2f7a80b9670a4198a54d26e42079a6a1c1be6ae7
MD5 hash:
7b77d210bf6b00fd8ee8187198852052
SHA1 hash:
7f78d6294a269349fc9a49ad3c8ccb3c3d2665b4
SH256 hash:
9404982e0cf941d6103e40246a6689d91be00c03c8d9072e42ebf56bd9080492
MD5 hash:
6244f4e218cef1f89dbe0a96374d5eaa
SHA1 hash:
d6d8c3c4a7e9f777b9c4383120b057be18a4ad41
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:pe_imphash
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Malspam

Formbook

Executable exe 9404982e0cf941d6103e40246a6689d91be00c03c8d9072e42ebf56bd9080492

(this sample)

  
Delivery method
Distributed via e-mail attachment

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