MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 03d4b246e3b88a839063be2dc08c4e903ed42db0f65457ed6c36915e67d0c251. 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: 14


Intelligence 14 IOCs YARA File information Comments

SHA256 hash: 03d4b246e3b88a839063be2dc08c4e903ed42db0f65457ed6c36915e67d0c251
SHA3-384 hash: c390892c34d8272ebd9a976a3accf16c0b7ed883834f823b4f3ef89820134859ff0e73bfd215c5bc539776c16ec91767
SHA1 hash: c62718a24a6e5ae2b3ea9a48d0934904857ab17e
MD5 hash: 6a9e61b5e3ad9cd6cbe67dadfd312422
humanhash: kilo-west-kansas-pluto
File name:Factura_855.pdf.exe
Download: download sample
Signature Formbook
File size:247'833 bytes
First seen:2022-03-21 12:44:46 UTC
Last seen:2022-03-29 13:23:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:rGiIjVp5uSwD/KRhDk3E6duGoNH3DbTjGwD:ECD/KLw1s3Dau
TLSH T16C3412829DD28F73E35204390536FB65E775D1A004050F47A7A96F3ABF873CA5A17386
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
242
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Reading critical registry keys
Setting browser functions hooks
Unauthorized injection to a recently created process
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
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)
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
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 593293 Sample: Factura_855.pdf.exe Startdate: 21/03/2022 Architecture: WINDOWS Score: 100 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for URL or domain 2->42 44 6 other signatures 2->44 10 Factura_855.pdf.exe 18 2->10         started        process3 file4 28 C:\Users\user\AppData\Local\Temp\xwxszr.exe, PE32 10->28 dropped 13 xwxszr.exe 10->13         started        process5 signatures6 52 Multi AV Scanner detection for dropped file 13->52 54 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 13->54 56 Tries to detect virtualization through RDTSC time measurements 13->56 58 Injects a PE file into a foreign processes 13->58 16 xwxszr.exe 13->16         started        process7 signatures8 30 Modifies the context of a thread in another process (thread injection) 16->30 32 Maps a DLL or memory area into another process 16->32 34 Sample uses process hollowing technique 16->34 36 Queues an APC in another process (thread injection) 16->36 19 cmmon32.exe 16->19         started        22 explorer.exe 16->22 injected process9 signatures10 46 Modifies the context of a thread in another process (thread injection) 19->46 48 Maps a DLL or memory area into another process 19->48 50 Tries to detect virtualization through RDTSC time measurements 19->50 24 cmd.exe 1 19->24         started        process11 process12 26 conhost.exe 24->26         started       
Threat name:
Win32.Trojan.SpyNoon
Status:
Malicious
First seen:
2022-03-21 12:45:19 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
15 of 42 (35.71%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:m0r9 rat spyware stealer suricata trojan
Behaviour
Enumerates system info in registry
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
f4ad7b96f298c4f7448a407b0127b0e785661423e93c5cc90c44d76f4545c767
MD5 hash:
6a9318eb9d199d9290187ed59277b370
SHA1 hash:
89baef2276dac882c240b8a1f9c3f5402f16051d
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
c0b9e1d4a7308e64f5ea5d9fbe315cd0d974d207989a1504fe51e37ce3a9172c
MD5 hash:
a69dd3bceac550f63fd53bfc845a73e2
SHA1 hash:
bf83ea80f57c2505ba3787603cd2fc91c20e356f
SH256 hash:
03d4b246e3b88a839063be2dc08c4e903ed42db0f65457ed6c36915e67d0c251
MD5 hash:
6a9e61b5e3ad9cd6cbe67dadfd312422
SHA1 hash:
c62718a24a6e5ae2b3ea9a48d0934904857ab17e
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Malspam

Formbook

Executable exe 03d4b246e3b88a839063be2dc08c4e903ed42db0f65457ed6c36915e67d0c251

(this sample)

  
Delivery method
Distributed via e-mail attachment

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