MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4cce075e6668d702051078ec9b14a1ed0c1620373187e5bade982a32bb17c1b. 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 4 File information Comments

SHA256 hash: f4cce075e6668d702051078ec9b14a1ed0c1620373187e5bade982a32bb17c1b
SHA3-384 hash: fcc9b6f3329012c037a2b282f1992670acc44bf9c0aa0cf9166960d75583f3f5429725d26856e4467eb788222b08da9c
SHA1 hash: f5ae6e42659171f3cc4628cfb17e3b6ed53b3358
MD5 hash: 5fdf98d95e57c67e6580942f40a008f4
humanhash: spaghetti-steak-emma-neptune
File name:INVOICE.exe
Download: download sample
Signature Formbook
File size:889'344 bytes
First seen:2021-09-10 19:50:55 UTC
Last seen:2021-09-11 09:46:20 UTC
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:ZJG2/DJjXksRmi20cqEC633UEypa6hLKuNJ9kRhmv/k4DbF53e0IUFL/P7r9r/+l:DDJDksgJqEC+ILhL1Rz1q
Threatray 9'431 similar samples on MalwareBazaar
TLSH T113157C58B985605DE837DF329AB0DC719627BDB66627D10E20CB3B5B3B7F6828D10072
dhash icon d4c4c4d8ccd4f0cc (241 x AgentTesla, 65 x Loki, 41 x Formbook)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
281
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INVOICE.exe
Verdict:
Malicious activity
Analysis date:
2021-09-10 19:54:24 UTC
Tags:
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
DNS request
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
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 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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: CMSTP Execution Process Creation
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 481443 Sample: INVOICE.exe Startdate: 10/09/2021 Architecture: WINDOWS Score: 100 34 www.patkoya8meditation.com 2->34 44 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 8 other signatures 2->50 11 INVOICE.exe 3 2->11         started        signatures3 process4 file5 32 C:\Users\user\AppData\...\INVOICE.exe.log, ASCII 11->32 dropped 62 Tries to detect virtualization through RDTSC time measurements 11->62 64 Injects a PE file into a foreign processes 11->64 15 INVOICE.exe 11->15         started        18 INVOICE.exe 11->18         started        signatures6 process7 signatures8 66 Modifies the context of a thread in another process (thread injection) 15->66 68 Maps a DLL or memory area into another process 15->68 70 Sample uses process hollowing technique 15->70 72 Queues an APC in another process (thread injection) 15->72 20 explorer.exe 15->20 injected process9 dnsIp10 36 www.retroufo.com 103.139.0.32, 80 WEST263GO-HKWest263InternationalLimitedHK China 20->36 38 shops.myshopify.com 23.227.38.74, 49815, 80 CLOUDFLARENETUS Canada 20->38 40 8 other IPs or domains 20->40 52 System process connects to network (likely due to code injection or exploit) 20->52 24 cmstp.exe 12 20->24         started        signatures11 process12 dnsIp13 42 www.retroufo.com 24->42 54 Self deletion via cmd delete 24->54 56 Modifies the context of a thread in another process (thread injection) 24->56 58 Maps a DLL or memory area into another process 24->58 60 Tries to detect virtualization through RDTSC time measurements 24->60 28 cmd.exe 1 24->28         started        signatures14 process15 process16 30 conhost.exe 28->30         started       
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2021-09-10 15:20:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
53
AV detection:
16 of 45 (35.56%)
Threat level:
  2/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:bqt25 loader rat suricata
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.yyygaming.com/bqt25/
Unpacked files
SH256 hash:
2ae17544d4c4dcf0a3769097a4e307f1557b5d1d1b031cc33bf305b9c8e70c0d
MD5 hash:
6b291964d908cb7881cb80cf07e978da
SHA1 hash:
aa4eb33dc43d08742d9b3570ed09cdd90b5abdd6
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
ad4a7895d529d5164302bb88596964ab42ff125bf0f5544418c80b6d438cb587
MD5 hash:
43ababb6b0a02907aad43084f12b10d9
SHA1 hash:
b60ba705891d5a666d64300181b475a46714ffa8
SH256 hash:
72646e068b8fbcea476b33ea2c53768370a1554bd81aa08d9925a32057a170fa
MD5 hash:
faa96fb6b8fd621137d1e15e66395f2a
SHA1 hash:
a8a29e4c65e9bd8c91a1e26257d834d7672d8a94
SH256 hash:
f4cce075e6668d702051078ec9b14a1ed0c1620373187e5bade982a32bb17c1b
MD5 hash:
5fdf98d95e57c67e6580942f40a008f4
SHA1 hash:
f5ae6e42659171f3cc4628cfb17e3b6ed53b3358
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:dridex_halo_generated
Author:Halogen Generated Rule, Corsin Camichel
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.

  
Delivery method
Other

Comments