MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 63af99e8a19debed050e3c5797d9ca523cfbe8dc0da94c6f9d0514691b1ccfd5. 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 File information Comments

SHA256 hash: 63af99e8a19debed050e3c5797d9ca523cfbe8dc0da94c6f9d0514691b1ccfd5
SHA3-384 hash: c392b96d36525119d8b8d6781d8a69383644956d17bef5e37f904454e4718ca4f94c909cc89889161a0bcd6844b06239
SHA1 hash: 899dee1351e308838d124a05d481053ebda44e6d
MD5 hash: 590e7bdf2208710154fbb9a4c905cbca
humanhash: may-queen-lactose-wisconsin
File name:590e7bdf2208710154fbb9a4c905cbca.exe
Download: download sample
Signature Formbook
File size:608'685 bytes
First seen:2021-12-16 08:53:31 UTC
Last seen:2021-12-16 11:18:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 12288:4ZaPMC8YQ69dtXnCWTjUuK5vMBAFB8Bjlc/YLhR7g38AB:IQn0uK5Xy6wLhR7g38AB
Threatray 12'663 similar samples on MalwareBazaar
TLSH T1AED4E1936B810766D3FA6D70D0964A328292EF2C47105C579AFA3DAB3FFD093C81561E
File icon (PE):PE icon
dhash icon d4fcf0f4d8d4fcc4 (3 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
158
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
DNS request
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed
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 dropped file
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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
Self deletion via cmd delete
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 540835 Sample: 52CaC54Wrd.exe Startdate: 16/12/2021 Architecture: WINDOWS Score: 100 31 www.dnemperor.com 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 5 other signatures 2->45 11 52CaC54Wrd.exe 17 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\cyomizbqrs.dll, PE32 11->29 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 59 Injects a PE file into a foreign processes 11->59 15 52CaC54Wrd.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.weihaits.com 173.231.37.98, 49793, 80 WEBNXUS United States 18->33 35 www.477karakabayrd.com 52.147.15.202, 49792, 80 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 18->35 37 9 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 wlanext.exe 18->22         started        signatures11 process12 signatures13 49 Self deletion via cmd delete 22->49 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2021-12-15 19:10:00 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:hf9j loader rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Xloader Payload
Xloader
Unpacked files
SH256 hash:
63af99e8a19debed050e3c5797d9ca523cfbe8dc0da94c6f9d0514691b1ccfd5
MD5 hash:
590e7bdf2208710154fbb9a4c905cbca
SHA1 hash:
899dee1351e308838d124a05d481053ebda44e6d
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.

Web download

Formbook

Executable exe 63af99e8a19debed050e3c5797d9ca523cfbe8dc0da94c6f9d0514691b1ccfd5

(this sample)

  
Delivery method
Distributed via web download

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