MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc9ba22e8b90dbfe7b8b4b8450f2a93227c949d57395f59a0cedd30c78f05697. 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: 10


Intelligence 10 IOCs YARA File information Comments

SHA256 hash: fc9ba22e8b90dbfe7b8b4b8450f2a93227c949d57395f59a0cedd30c78f05697
SHA3-384 hash: be01bd878b305f62ccef346ba203703f918a8c23d00a2b1e24699fe1d9789900166ed41c56b8bc85e6afe1a2368cb457
SHA1 hash: f6e49b9afdf26663c8f2819cdf02ea7c138c3bb3
MD5 hash: 6688b944bbe2c16a001b55af8fae2b4f
humanhash: stream-apart-xray-lemon
File name:Reference BST E010-07976.exe
Download: download sample
Signature Formbook
File size:867'328 bytes
First seen:2021-10-20 08:16:33 UTC
Last seen:2021-10-20 12:28:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 3ffe5a9a24da83fb277b548d938597c8 (5 x Formbook, 3 x RemcosRAT, 1 x BitRAT)
ssdeep 12288:rHPNFplQQTfQAEpHxdE3Jc9AYPeyqY99j9gqmfGVIJt7B:Lx+OkpHxdKJc4yp99j9gvwIJB
Threatray 10'598 similar samples on MalwareBazaar
TLSH T1E1058D237F98847ED13FC6358C6BEAE06979BD603E2B288B5DD8175C0C75704322B966
File icon (PE):PE icon
dhash icon fedcbb4d750f4c4c (9 x Formbook, 5 x RemcosRAT, 2 x NetWire)
Reporter pr0xylife
Tags:exe FormBook xloader

Intelligence


File Origin
# of uploads :
2
# of downloads :
238
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Modifying an executable file
Launching the default Windows debugger (dwwin.exe)
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
keylogger
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
Detected unpacking (changes PE section rights)
Drops PE files to the user root directory
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)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Execution from Suspicious Folder
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: 506113 Sample: Reference BST E010-07976.exe Startdate: 20/10/2021 Architecture: WINDOWS Score: 100 39 www118.wixdns.net 2->39 41 www.teracorp.biz 2->41 43 4 other IPs or domains 2->43 65 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->65 67 Found malware configuration 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 6 other signatures 2->71 10 Reference BST E010-07976.exe 1 17 2->10         started        signatures3 process4 dnsIp5 57 cdn.discordapp.com 162.159.135.233, 443, 49735, 49736 CLOUDFLARENETUS United States 10->57 37 C:\Users\Public\Ovtleg.exe, PE32 10->37 dropped 87 Injects a PE file into a foreign processes 10->87 15 Reference BST E010-07976.exe 10->15         started        file6 signatures7 process8 signatures9 89 Modifies the context of a thread in another process (thread injection) 15->89 91 Maps a DLL or memory area into another process 15->91 93 Sample uses process hollowing technique 15->93 95 Queues an APC in another process (thread injection) 15->95 18 explorer.exe 2 15->18 injected process10 dnsIp11 45 shiningproent.com 162.215.254.72, 49813, 80 PUBLIC-DOMAIN-REGISTRYUS United States 18->45 47 newnetteline.com 34.102.136.180, 49809, 49811, 80 GOOGLEUS United States 18->47 49 7 other IPs or domains 18->49 73 System process connects to network (likely due to code injection or exploit) 18->73 75 Performs DNS queries to domains with low reputation 18->75 22 Ovtleg.exe 13 18->22         started        26 cmmon32.exe 18->26         started        28 Ovtleg.exe 15 18->28         started        30 control.exe 18->30         started        signatures12 process13 dnsIp14 51 162.159.134.233, 443, 49759, 49761 CLOUDFLARENETUS United States 22->51 53 cdn.discordapp.com 22->53 77 Detected unpacking (changes PE section rights) 22->77 79 Tries to detect virtualization through RDTSC time measurements 22->79 81 Injects a PE file into a foreign processes 22->81 32 Ovtleg.exe 22->32         started        83 Modifies the context of a thread in another process (thread injection) 26->83 85 Maps a DLL or memory area into another process 26->85 55 cdn.discordapp.com 28->55 35 Ovtleg.exe 28->35         started        signatures15 process16 signatures17 59 Modifies the context of a thread in another process (thread injection) 32->59 61 Maps a DLL or memory area into another process 32->61 63 Sample uses process hollowing technique 32->63
Threat name:
Win32.Downloader.FormBook
Status:
Malicious
First seen:
2021-10-20 07:54:13 UTC
AV detection:
3 of 44 (6.82%)
Threat level:
  3/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:epns loader persistence rat suricata
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.lnvietnam.online/epns/
Unpacked files
SH256 hash:
651d2f39c341c86341babbf45e367c1fe183f49348f3816f91920e08ed057d2a
MD5 hash:
100b966ad7ecd1ba763f069d4f1c27d6
SHA1 hash:
630ce76fda48fa229e41cf3e5b70f21af8288af0
Detections:
win_temple_loader_w0
SH256 hash:
fc9ba22e8b90dbfe7b8b4b8450f2a93227c949d57395f59a0cedd30c78f05697
MD5 hash:
6688b944bbe2c16a001b55af8fae2b4f
SHA1 hash:
f6e49b9afdf26663c8f2819cdf02ea7c138c3bb3
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.

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