MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f10508b4bd982e597771e6128fede0b532c42cb799ac495c922940c27a942dbe. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
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SHA256 hash: f10508b4bd982e597771e6128fede0b532c42cb799ac495c922940c27a942dbe
SHA3-384 hash: d96ba38c3801ed338e6546a9819bf8680088f4850587090334aa898c7e30fff3edf1150110b9aac777946877d575305d
SHA1 hash: 44b6e002fb2d2d95f45a3d3987834ca4f9f86e6d
MD5 hash: c6bbfb9c5a655ebe04629c391523b563
humanhash: bravo-sierra-fourteen-fillet
File name:c6bbfb9c5a655ebe04629c391523b563.exe
Download: download sample
Signature Formbook
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File size:789'504 bytes
First seen:2021-06-09 06:47:52 UTC
Last seen:2021-06-09 09:46:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:Mmeew15tQPvHcsDO+DlMV40Jk2m7dOyrgMXaM/GFGV0kgzWSNgyJ3h5B7XhEUF1G:MlMO+DU4r7aM4GV9gBga33B7iw1QdW3
Threatray 5'638 similar samples on MalwareBazaar
TLSH B5F4E03522488A51E17F937190A1560443F1F907D723EB0DFEA858DA2EA33C6E3AF657
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
205
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/165553/
Detection(s):
SecuriteInfo.com.generic.ml.20483.10971.UNOFFICIAL
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Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/799357
Signature
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 431753 Sample: 88DUknYBXu.exe Startdate: 09/06/2021 Architecture: WINDOWS Score: 100 34 Found malware configuration 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 5 other signatures 2->40 9 88DUknYBXu.exe 3 2->9         started        process3 file4 28 C:\Users\user\AppData\...\88DUknYBXu.exe.log, ASCII 9->28 dropped 50 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 9->50 52 Tries to detect virtualization through RDTSC time measurements 9->52 54 Injects a PE file into a foreign processes 9->54 13 88DUknYBXu.exe 9->13         started        16 88DUknYBXu.exe 9->16         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 13->56 58 Maps a DLL or memory area into another process 13->58 60 Sample uses process hollowing technique 13->60 62 Queues an APC in another process (thread injection) 13->62 18 cmmon32.exe 13->18         started        21 explorer.exe 13->21 injected process8 dnsIp9 42 Modifies the context of a thread in another process (thread injection) 18->42 44 Maps a DLL or memory area into another process 18->44 46 Tries to detect virtualization through RDTSC time measurements 18->46 24 cmd.exe 1 18->24         started        30 www.gcbsclubc.com 103.120.82.56, 49731, 80 WEST263GO-HKWest263InternationalLimitedHK Hong Kong 21->30 32 www.verdijvtc.com 45.15.155.20, 49728, 80 DEDIPATH-LLCUS Netherlands 21->32 48 System process connects to network (likely due to code injection or exploit) 21->48 signatures10 process11 process12 26 conhost.exe 24->26         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/f10508b4bd982e597771e6128fede0b532c42cb799ac495c922940c27a942dbe/
Threat name:
Win32.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-06-09 06:48:09 UTC
AV detection:
4 of 47 (8.51%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6ecqrnf5taxfs53r4yji73pawuzmilfxtgwesxesffame6uufw7a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
00723545fff6ce259e729f8f1f9c7129e0d667502f94ef137bbbd9642ced4cc0
Formbook
02b07b8086d052cca5b1f10089f93da604dfdf71d09f0370750f371e50bb0221
Formbook
2deb22be02f4464416048e124a39c1a8df4f29ba90d783d27bfcefa29ddce161
Formbook
38acc90cd6d33b61b99cca8cf06781e1bd2ab8ffebc3a33e036eca36037d413b
Formbook
5d617282230f991221360f213e15b0e62d0c462afc3d32299c9b410658fbb106
Formbook
9ec613dd0465bd78ed640b4fc89d399a092bee20a22e3bc627ff07da5f7fc207
Formbook
c96cb19ea3541a6591f2be3cfe048a63b84fcd538f023144df86694a34d06934
Formbook
d348cbf91ed1e466a286b17f93bf3fd27bb01de6ba91c76bf586788bf16876cb
Formbook
e069440cfd88504140f6315acc7174bd0dd961f070ccbf9b9b82c2e01af8113d
Formbook
ffeb538e279b53ac314ec71da8a83ffd3693cf31cd3705e23579c7f20d182de6
Formbook
+ 5'628 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook evasion rat spyware stealer trojan
Link:
https://tria.ge/reports/210609-31m9dx9ka6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
Formbook Payload
Looks for VirtualBox Guest Additions in registry
Formbook
Malware Config
C2 Extraction:
http://www.yellow-wink.com/nff/
Unpacked files
SH256 hash:
e987e066b6b1ca5c3698a367d405b671a7f33e388289cb6b191faf4796478596
MD5 hash:
8b3814abb5e9cd9fb5da34bc71a4afc2
SHA1 hash:
8005c030dd9d0c1f146d18c4597f0a0f55e16577
Link:
https://www.unpac.me/results/9a4c6b88-8517-4bc4-ae79-f86dadcbe016/
SH256 hash:
f10508b4bd982e597771e6128fede0b532c42cb799ac495c922940c27a942dbe
MD5 hash:
c6bbfb9c5a655ebe04629c391523b563
SHA1 hash:
44b6e002fb2d2d95f45a3d3987834ca4f9f86e6d
Link:
https://www.unpac.me/results/9a4c6b88-8517-4bc4-ae79-f86dadcbe016/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f10508b4bd982e597771e6128fede0b532c42cb799ac495c922940c27a942dbe

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
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe f10508b4bd982e597771e6128fede0b532c42cb799ac495c922940c27a942dbe

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1344233/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/165553/

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