MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fff17900384dad1f4e5b80b1d1e09aa1a6a90cb2cc28d8fad8464c6d6148a905. 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 6 File information Comments
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SHA256 hash: fff17900384dad1f4e5b80b1d1e09aa1a6a90cb2cc28d8fad8464c6d6148a905
SHA3-384 hash: cacaacb97d8dfa342692134498fdfd5d63e37a662eee20eee306fd82122828df4661e28cb1cf769c59c90f8219b1e0b3
SHA1 hash: 69e2f6dc3ef0a834942306381fb9a5ec79738842
MD5 hash: 34bc6ec12762f22627fe9eb49e3162f3
humanhash: pizza-cup-lemon-edward
File name:0700122.exe
Download: download sample
Signature Formbook
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File size:220'160 bytes
First seen:2022-07-01 07:23:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 3072:IgLa67skmqpezQ6pY7VHxrtjoxxoSbhL4M4Gjz6BUXCbATwnrM6Cua/lmBswfXnN:NmYc
TLSH T1F924BDC2D406CCD8F5724BB5A236DD25113F2DBEA476AA0E149BB4BA99B71C31033E17
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon e8d21317171796e0 (1 x Formbook)
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
250
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/284792/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.10124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed wacatac
Link:
https://www.filescan.io/uploads/62bea14faf5d83443c185f11/reports/37f8b521-7eb4-44f3-8057-80117115ebe6/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e8e5f502-45b1-4cf7-a7ff-32b20282d2ad
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1023045
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Drops executable to a common third party application directory
Encrypted powershell cmdline option found
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected FormBook
Yara detected Generic Downloader
Yara detected MSILDownloaderGeneric
Behaviour
Behavior Graph:
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behaviorgraph top1 signatures2 2 Behavior Graph ID: 655536 Sample: 0700122.exe Startdate: 01/07/2022 Architecture: WINDOWS Score: 100 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus detection for URL or domain 2->41 43 Multi AV Scanner detection for dropped file 2->43 45 9 other signatures 2->45 10 0700122.exe 15 7 2->10         started        process3 dnsIp4 37 cdn.discordapp.com 162.159.130.233, 443, 49748 CLOUDFLARENETUS United States 10->37 31 C:\Users\user\AppData\Roaming\...\adobe.exe, PE32 10->31 dropped 33 C:\Users\user\...\adobe.exe:Zone.Identifier, ASCII 10->33 dropped 35 C:\Users\user\AppData\...\0700122.exe.log, ASCII 10->35 dropped 49 Creates an undocumented autostart registry key 10->49 51 Encrypted powershell cmdline option found 10->51 53 Writes to foreign memory regions 10->53 55 2 other signatures 10->55 15 InstallUtil.exe 10->15         started        18 powershell.exe 15 10->18         started        file5 signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 2 other signatures 15->63 20 explorer.exe 15->20 injected 22 conhost.exe 18->22         started        process9 process10 24 wscript.exe 20->24         started        signatures11 47 Tries to detect virtualization through RDTSC time measurements 24->47 27 cmd.exe 1 24->27         started        process12 process13 29 conhost.exe 27->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fff17900384dad1f4e5b80b1d1e09aa1a6a90cb2cc28d8fad8464c6d6148a905/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2022-07-01 05:47:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
20 of 40 (50.00%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=77yxsabyjwwr6ts3qcy5dye2ugtksdfszqunr6wyizgg2ykivecq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:fs44 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220701-h8c3tshgaq/
Behaviour
Enumerates system info in registry
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
fff17900384dad1f4e5b80b1d1e09aa1a6a90cb2cc28d8fad8464c6d6148a905
MD5 hash:
34bc6ec12762f22627fe9eb49e3162f3
SHA1 hash:
69e2f6dc3ef0a834942306381fb9a5ec79738842
Link:
https://www.unpac.me/results/f98ac7a5-9139-43cc-897a-e3f3ccb8f7ca/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fff17900384d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/fff17900384dad1f4e5b80b1d1e09aa1a6a90cb2cc28d8fad8464c6d6148a905

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:INDICATOR_EXE_Packed_SmartAssembly
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Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:INDICATOR_SUSPICIOUS_EXE_DiscordURL
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Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Discord_Attachments_URL
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Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an Discord Attachments URL. This is often used by Malware to download further payloads
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Create hunting rule
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

File information

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

Malspam

Formbook

zip ebf8c36edf876c352646c5d153b82599e3990ead26e8dbd9220f2b10103217ac

Formbook

Executable exe fff17900384dad1f4e5b80b1d1e09aa1a6a90cb2cc28d8fad8464c6d6148a905

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 ebf8c36edf876c352646c5d153b82599e3990ead26e8dbd9220f2b10103217ac
Cape
Cape
https://www.capesandbox.com/analysis/284792/
  
Dropped by
MD5 06566c6cc694eafc182eae43a5e2497d

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