MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b5faddbd8f8bceb29a59439d2162a39f2ac14f0ae56bfed36c91f0b6eff95df. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
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SHA256 hash: 8b5faddbd8f8bceb29a59439d2162a39f2ac14f0ae56bfed36c91f0b6eff95df
SHA3-384 hash: cf5376bb405b4fff6a4cd9aca34e0a82d91824278c83690ea379eb44604cc3030b2a917628301bd383c4a934afa0911b
SHA1 hash: 1080508bb6d631936e8238340f923ec873726099
MD5 hash: c5ccf43ae3e640a98ec4f4b20e27ed93
humanhash: stream-winner-bacon-december
File name:Scanned Ref_PST2204022 NOTE.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:196'592 bytes
First seen:2022-04-25 14:17:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (720 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 3072:l1NjcVVnLpPunbDP5sv8Teojhf4UQX9UiRZ1tGt/gZZQRex60Q8SjbB5eFNCTlXK:HNeZmlsv8TeMI9UiH+tgrzx6eSjnqNCQ
Threatray 15'348 similar samples on MalwareBazaar
TLSH T15A140242A794C49BE9A306322D32572A5FED69263174C71F2350AFDB3C233819A2F357
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter malwarelabnet
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
256
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/266373/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.2.6896.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6266addf16e18e7608f5020c/reports/aa092b6f-38ac-4449-b214-0d3a1b9dcafc/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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/984ace99-a6d4-4d1e-bd5d-2010c8305275
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/982471
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
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
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 614958 Sample: Scanned Ref_PST2204022 NOTE.exe Startdate: 25/04/2022 Architecture: WINDOWS Score: 100 34 www.wangjiarihua.com 2->34 36 www.andreasfuss.com 2->36 52 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 4 other signatures 2->58 12 Scanned Ref_PST2204022 NOTE.exe 18 2->12         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\ytlonvvlf.exe, PE32 12->32 dropped 15 ytlonvvlf.exe 12->15         started        process6 signatures7 68 Multi AV Scanner detection for dropped file 15->68 70 Tries to detect virtualization through RDTSC time measurements 15->70 18 ytlonvvlf.exe 15->18         started        process8 signatures9 44 Modifies the context of a thread in another process (thread injection) 18->44 46 Maps a DLL or memory area into another process 18->46 48 Sample uses process hollowing technique 18->48 50 Queues an APC in another process (thread injection) 18->50 21 explorer.exe 18->21 injected process10 dnsIp11 38 customerconexion.com 186.202.135.240, 49772, 80 LocawebServicosdeInternetSABR Brazil 21->38 40 www.nflgamejersey.store 104.160.10.109, 49835, 80 AS-46805SE Sweden 21->40 42 9 other IPs or domains 21->42 60 System process connects to network (likely due to code injection or exploit) 21->60 25 cmd.exe 21->25         started        signatures12 process13 signatures14 62 Modifies the context of a thread in another process (thread injection) 25->62 64 Maps a DLL or memory area into another process 25->64 66 Tries to detect virtualization through RDTSC time measurements 25->66 28 cmd.exe 1 25->28         started        process15 process16 30 conhost.exe 28->30         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/8b5faddbd8f8bceb29a59439d2162a39f2ac14f0ae56bfed36c91f0b6eff95df/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2022-04-25 08:03:00 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
23 of 25 (92.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rnp23w6y7c6owknfsq45efrkhhzkyfhqvzll73jwzepqw3x7sxpq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
108238536ab90b12dd6a5c654a1ddd27c2994b2d3fc39f87fc5f5e4847c1ec34
Formbook
2f6a10bdc0e72b2b49bfdb61c307c72c8fe2fc9dd5ede0cfabc63ea5aabf9a4f
Formbook
413e58ab30e56edfaa7899ebe3fc8655314c993db5a0d1840100752ba6be0be0
Formbook
6e2d552e111d1303a2b72809cd77f7aab66ce3e7bdfc243f0dcb53c30d272736
Formbook
75b2135da8f94b2601c6758aba7bfba10907e85ec7d98852b74442c21d8b3b16
Formbook
84c208a81f0251fddaaafd620cbcbf4e004cf195c1bb3e72a4200669a7f50859
Formbook
ae7d4af56f79abdb03b343dfae7f614e52b4b3e842e1d11cc0c2e0953e74679d
Formbook
+ 15'338 additional samples on MalwareBazaar
Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:afj0 loader rat suricata
Link:
https://tria.ge/reports/220425-rl9mysgecn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
5137e1c47fb295f39c54e2ab6d7554ff8feabc10fa65b145a958039fa7134ac6
MD5 hash:
551a118995390606b2cacf70f67df076
SHA1 hash:
36d727d09b83fc0e99aeb4ed27089627d59b1ccc
Detections:
win_formbook_g0
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win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/fd3037fd-ee51-4ee7-9b7f-4a47fc7121b8/
Parent samples :
75b2135da8f94b2601c6758aba7bfba10907e85ec7d98852b74442c21d8b3b16
8b5faddbd8f8bceb29a59439d2162a39f2ac14f0ae56bfed36c91f0b6eff95df
SH256 hash:
9dd90f4725b48c94bd96b4c0b634060707fa244867e328d1460f3ddc7dafbaa3
MD5 hash:
6ded90dbcc6e109c946d6c132e7c9c15
SHA1 hash:
82f3bcbc11df6910beb111b57f812be3d8895f3c
Link:
https://www.unpac.me/results/fd3037fd-ee51-4ee7-9b7f-4a47fc7121b8/
SH256 hash:
16584778df6c2b2cac190fba48128000c87736fa3adf2050160e8aa9586811af
MD5 hash:
979e157a649fde42d7daa854d47a561a
SHA1 hash:
7d01dc99fc487b1386e9c6bf58599fdd36973b1c
Link:
https://www.unpac.me/results/fd3037fd-ee51-4ee7-9b7f-4a47fc7121b8/
SH256 hash:
8b5faddbd8f8bceb29a59439d2162a39f2ac14f0ae56bfed36c91f0b6eff95df
MD5 hash:
c5ccf43ae3e640a98ec4f4b20e27ed93
SHA1 hash:
1080508bb6d631936e8238340f923ec873726099
Link:
https://www.unpac.me/results/fd3037fd-ee51-4ee7-9b7f-4a47fc7121b8/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8b5faddbd8f8/report/overview.html
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/8b5faddbd8f8bceb29a59439d2162a39f2ac14f0ae56bfed36c91f0b6eff95df

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:malware_Formbook_strings
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Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pdb2
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Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/266373/

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