MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 04762494e2ed43790b06b2e3dd8590a97961237ed4662b5db080f8c3283ec20e. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments 1

SHA256 hash: 04762494e2ed43790b06b2e3dd8590a97961237ed4662b5db080f8c3283ec20e
SHA3-384 hash: 8b8e0d50429359172647e253ecc22746f091555b4bb99e640bfd7bf5af180914f03bbbe6c3be93bb35114f4635e827a4
SHA1 hash: af48e08efd3aecdfa9ccf0f9fb8fe101771a9395
MD5 hash: 539075408f6c9ad9759491ff5d0d739f
humanhash: winter-eleven-maine-speaker
File name:539075408f6c9ad9759491ff5d0d739f
Download: download sample
Signature Formbook
File size:444'172 bytes
First seen:2022-03-24 20:01:41 UTC
Last seen:2022-03-24 21:57:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:HGiQTlwuUC1Q0dFy/RmKdPbT7qeqSNG4cG25HDPLdz/23yyHWtbVhQA342qBc4EK:Cy5mUf+7SNG4ZgDpL8WtpmnhGcuWf
Threatray 14'439 similar samples on MalwareBazaar
TLSH T1439402B27B78C543D2D95CB05E9782A8B2F598AC8DD3951FE2F23F3945F0392190E246
File icon (PE):PE icon
dhash icon 60786866c68efc3c (1 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
223
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
15CC24A703C909376DDD72F0973577D847E631B4
Verdict:
Malicious activity
Analysis date:
2022-03-24 16:41:20 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader trojan formbook stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Сreating synchronization primitives
Sending a custom TCP request
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Result
Verdict:
MALICIOUS
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
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Injects a PE file into a foreign processes
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
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 596517 Sample: 9LTzJHzg4z Startdate: 24/03/2022 Architecture: WINDOWS Score: 100 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 5 other signatures 2->53 11 9LTzJHzg4z.exe 18 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\...\yawseyzor.exe, PE32 11->31 dropped 14 yawseyzor.exe 11->14         started        process5 signatures6 61 Multi AV Scanner detection for dropped file 14->61 63 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->63 65 Tries to detect virtualization through RDTSC time measurements 14->65 67 Injects a PE file into a foreign processes 14->67 17 yawseyzor.exe 14->17         started        process7 signatures8 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Sample uses process hollowing technique 17->43 45 Queues an APC in another process (thread injection) 17->45 20 explorer.exe 17->20 injected process9 dnsIp10 33 www.azamhomes.com 20->33 35 hdr-nlb7-aebd5d615260636b.elb.us-east-1.amazonaws.com 34.205.242.146, 49827, 80 AMAZON-AESUS United States 20->35 37 traff-5.hugedomains.com 20->37 55 System process connects to network (likely due to code injection or exploit) 20->55 24 msiexec.exe 20->24         started        signatures11 process12 signatures13 57 Modifies the context of a thread in another process (thread injection) 24->57 59 Maps a DLL or memory area into another process 24->59 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Threat name:
Win32.Trojan.SpyNoon
Status:
Malicious
First seen:
2022-03-24 20:02:23 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:m0e8 rat spyware stealer 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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
Unpacked files
SH256 hash:
04762494e2ed43790b06b2e3dd8590a97961237ed4662b5db080f8c3283ec20e
MD5 hash:
539075408f6c9ad9759491ff5d0d739f
SHA1 hash:
af48e08efd3aecdfa9ccf0f9fb8fe101771a9395
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:malware_Formbook_strings
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:Detects win.formbook.

File information


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

Web download

Formbook

Executable exe 04762494e2ed43790b06b2e3dd8590a97961237ed4662b5db080f8c3283ec20e

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-03-24 20:01:44 UTC

url : hxxp://103.138.108.96/__data_protect/vbc.exe