MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c435fcfb3786d573ede77e30ded01503640a4de64523df7e9078cfc572381ced. 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

SHA256 hash: c435fcfb3786d573ede77e30ded01503640a4de64523df7e9078cfc572381ced
SHA3-384 hash: 6167da04ed387967ee5660a12a404a9b6b4cacda74f7cfbff606b4c911065ecbc78ee94cdd4d82cd9baa5d013ff54afa
SHA1 hash: e4829cc9645d8c2a26929d2f132cf6d0f358a988
MD5 hash: 2a2d3e7c62d3b3a9e9ef3565f04a2dc5
humanhash: triple-helium-alanine-happy
File name:Payment Advice for Outstanding Invoices.exe
Download: download sample
Signature Formbook
File size:635'904 bytes
First seen:2022-02-18 18:42:06 UTC
Last seen:2022-02-20 17:20:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:7Zbr8K777777777777TkNdgOG0IzkXh7aolFyiSu61xdEJXouOo0XSLEdigeAaui:7F8K777777777777TiP8EFhmoMst
Threatray 13'707 similar samples on MalwareBazaar
TLSH T1E3D449DD312232FFC967C8BAE9641C68BF60387B830B921BD05715A99A5C997CF150B3
Reporter James_inthe_box
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
6
# of downloads :
335
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd.exe netsh.exe 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
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspicius Add Task From User AppData Temp
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 574901 Sample: Payment Advice for Outstand... Startdate: 18/02/2022 Architecture: WINDOWS Score: 100 35 www.knowunknow.com 2->35 37 www.heroteas.com 2->37 39 2 other IPs or domains 2->39 47 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 12 other signatures 2->53 9 Payment Advice for Outstanding Invoices.exe 6 2->9         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\IlSblFRyVadI.exe, PE32 9->29 dropped 31 C:\Users\user\AppData\Local\...\tmp6746.tmp, XML 9->31 dropped 33 Payment Advice for...ng Invoices.exe.log, ASCII 9->33 dropped 59 Injects a PE file into a foreign processes 9->59 13 Payment Advice for Outstanding Invoices.exe 9->13         started        16 schtasks.exe 1 9->16         started        18 Payment Advice for Outstanding Invoices.exe 9->18         started        signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 13->67 69 Maps a DLL or memory area into another process 13->69 71 Sample uses process hollowing technique 13->71 73 Queues an APC in another process (thread injection) 13->73 20 explorer.exe 13->20 injected 24 conhost.exe 16->24         started        process9 dnsIp10 41 www.jonescompanysolutions.com 108.60.14.15, 49817, 80 IN2NET-NETWORKCA Canada 20->41 43 www.ktnword.xyz 20->43 45 ktnword.xyz 34.102.136.180, 49816, 80 GOOGLEUS United States 20->45 55 System process connects to network (likely due to code injection or exploit) 20->55 57 Performs DNS queries to domains with low reputation 20->57 26 systray.exe 20->26         started        signatures11 process12 signatures13 61 Modifies the context of a thread in another process (thread injection) 26->61 63 Maps a DLL or memory area into another process 26->63 65 Tries to detect virtualization through RDTSC time measurements 26->65
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2022-02-18 18:31:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Unpacked files
SH256 hash:
30ace44e466c2689856769efd669a4d052b2b5cd409bd38af2d101dd6a728fd9
MD5 hash:
2846857a7b879507576ddfeca22324f8
SHA1 hash:
e4ee7468365641cfe3998d5aa8f569d9b428be52
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
b7aa7abda1946e603c0a8a9a97f18c6c91f5e36ca3176db7878161b0a9da57df
MD5 hash:
6a2d6e829445479b52b7ec7e2bd03522
SHA1 hash:
c70500b1f12c724d435c665958267235a1aca918
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
SH256 hash:
c435fcfb3786d573ede77e30ded01503640a4de64523df7e9078cfc572381ced
MD5 hash:
2a2d3e7c62d3b3a9e9ef3565f04a2dc5
SHA1 hash:
e4829cc9645d8c2a26929d2f132cf6d0f358a988
Malware family:
XLoader
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: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.

  
Delivery method
Other

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