MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d3d8ab2d49b0e893933192b1dbc35e4d58e67efc8e09621d28acccc75a48b29b. 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 3 File information Comments

SHA256 hash: d3d8ab2d49b0e893933192b1dbc35e4d58e67efc8e09621d28acccc75a48b29b
SHA3-384 hash: 82170474d144078b003077c1eee794937ec0077aaa77b1967b04879c4681d19c66805bc908e9396cf09ed726119b96ef
SHA1 hash: ff003a2a50c562d106485004d7a170a81362633a
MD5 hash: 71d676291b8e31cab039743469233c87
humanhash: avocado-mike-shade-purple
File name:Factura de proforma.pdf.exe
Download: download sample
Signature Formbook
File size:662'528 bytes
First seen:2021-11-11 16:32:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:rugLNkLt10k0WUZxQHMkdhir+qoJ+oLt1e7oKXnz61QIb:agLut+XPZuskfi65JXtoz
Threatray 9'821 similar samples on MalwareBazaar
TLSH T16FE4F189B981C225D8190F7B8C2189D02223FDBADE01F75B7CC8B75E2B733D94926257
File icon (PE):PE icon
dhash icon 90ba7181e46588f0 (31 x AgentTesla, 11 x Formbook, 9 x Loki)
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
106
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
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
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicious Svchost Process
Sigma detected: Suspicius Add Task From User AppData Temp
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 520072 Sample: Factura de proforma.pdf.exe Startdate: 11/11/2021 Architecture: WINDOWS Score: 100 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Multi AV Scanner detection for dropped file 2->56 58 16 other signatures 2->58 10 Factura de proforma.pdf.exe 7 2->10         started        process3 file4 38 C:\Users\user\AppData\Roaming\SOAtiRG.exe, PE32 10->38 dropped 40 C:\Users\user\...\SOAtiRG.exe:Zone.Identifier, ASCII 10->40 dropped 42 C:\Users\user\AppData\Local\...\tmpBC06.tmp, XML 10->42 dropped 44 C:\Users\...\Factura de proforma.pdf.exe.log, ASCII 10->44 dropped 62 Adds a directory exclusion to Windows Defender 10->62 14 RegSvcs.exe 10->14         started        17 powershell.exe 22 10->17         started        19 schtasks.exe 1 10->19         started        21 svchost.exe 1 10->21         started        signatures5 process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 2 other signatures 14->70 23 explorer.exe 14->23 injected 27 conhost.exe 17->27         started        29 conhost.exe 19->29         started        process8 dnsIp9 46 www.delmegebuildingproducts.com 185.107.56.59, 49810, 80 NFORCENL Netherlands 23->46 48 www.ppapo.com 64.69.40.219, 49774, 80 MULTA-ASN1US United States 23->48 50 3 other IPs or domains 23->50 60 System process connects to network (likely due to code injection or exploit) 23->60 31 wlanext.exe 23->31         started        signatures10 process11 signatures12 72 Modifies the context of a thread in another process (thread injection) 31->72 74 Maps a DLL or memory area into another process 31->74 76 Tries to detect virtualization through RDTSC time measurements 31->76 34 cmd.exe 1 31->34         started        process13 process14 36 conhost.exe 34->36         started       
Threat name:
Win32.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-11-11 12:59:32 UTC
AV detection:
17 of 27 (62.96%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:dv9n rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
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
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.elianedefalco.com/dv9n/
Unpacked files
SH256 hash:
bd4c4912209802bb457983177d94b220d20dc9775ff973f90bd1c6afd729bc9c
MD5 hash:
8cde05c2cc918a68b075bdb2854c9994
SHA1 hash:
bc3c4e2826370171102ee8b7bd317493cd72c15f
SH256 hash:
c4461ba3928ea594c9e28a3eceedba91d6159143becec03af7395dc65118a219
MD5 hash:
13e34fd7d50027ad260e241e077edccb
SHA1 hash:
ffb0c05a43c44be03b2b6e85db68e1f08fe3419e
SH256 hash:
91247d29e38c5d0736f69467ea73ab3b5c5af447002f4fec5aef94fa0910ea49
MD5 hash:
aff6bd42cdae47f707eb7f7d7963cbb7
SHA1 hash:
9a760d8c0bd93904227152211c9ce9418cd79858
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
d3d8ab2d49b0e893933192b1dbc35e4d58e67efc8e09621d28acccc75a48b29b
MD5 hash:
71d676291b8e31cab039743469233c87
SHA1 hash:
ff003a2a50c562d106485004d7a170a81362633a
Malware family:
FormBook
Verdict:
Malicious
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 d3d8ab2d49b0e893933192b1dbc35e4d58e67efc8e09621d28acccc75a48b29b

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments