MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 257a36fdd79cbf165caeda4a1efe458034d670b71060693fdb0d2a1bf0489aa5. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
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SHA256 hash: 257a36fdd79cbf165caeda4a1efe458034d670b71060693fdb0d2a1bf0489aa5
SHA3-384 hash: f491676b0f03169907c7e8615768c9e0c985004b4ca99a93895d70d3dc27a6a3dbea3532d4b9e12e5476b6e55eb501a2
SHA1 hash: 84269fe071b6b944df79ca09d58fd60bbc2d666e
MD5 hash: ae2de0b0e6acf9a4d009f367c8928e30
humanhash: lamp-five-alaska-hydrogen
File name:257a36fdd79cbf165caeda4a1efe458034d670b71060693fdb0d2a1bf0489aa5
Download: download sample
Signature Formbook
Create hunting rule
File size:704'000 bytes
First seen:2021-08-16 11:13:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'595 x Formbook, 12'240 x SnakeKeylogger)
ssdeep 12288:dZLEWO2cRn4QR+1YJp8+wjAcdxjyeFsZgUC5X:7PDonvYH+iAyraZ0
Threatray 7'749 similar samples on MalwareBazaar
TLSH T19EE4E338225A0953F2259277F422EEB0EEF03E522900CD1A46D6FB873D526C2DD9DD5E
Reporter madjack_red
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
166
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Tender07.bat
Verdict:
Malicious activity
Analysis date:
2021-07-27 01:09:35 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/2734a59e-a878-4c4a-ba59-71dad326e8a5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/179498/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.7424.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
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:
Vendetta
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1e98304b-c3ae-4996-b94c-c115d2ad3547
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/833442
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 465873 Sample: Xf0Hl6iior Startdate: 16/08/2021 Architecture: WINDOWS Score: 100 41 www.rokitreach.com 2->41 43 rokitreach.com 2->43 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Multi AV Scanner detection for dropped file 2->53 55 10 other signatures 2->55 11 Xf0Hl6iior.exe 6 2->11         started        signatures3 process4 file5 35 C:\Users\user\AppData\Roaming\iQLCkPktI.exe, PE32 11->35 dropped 37 C:\Users\user\AppData\Local\...\tmp890E.tmp, XML 11->37 dropped 39 C:\Users\user\AppData\...\Xf0Hl6iior.exe.log, ASCII 11->39 dropped 59 Uses schtasks.exe or at.exe to add and modify task schedules 11->59 61 Tries to detect virtualization through RDTSC time measurements 11->61 63 Injects a PE file into a foreign processes 11->63 15 Xf0Hl6iior.exe 11->15         started        18 schtasks.exe 1 11->18         started        20 Xf0Hl6iior.exe 11->20         started        signatures6 process7 signatures8 71 Modifies the context of a thread in another process (thread injection) 15->71 73 Maps a DLL or memory area into another process 15->73 75 Sample uses process hollowing technique 15->75 77 Queues an APC in another process (thread injection) 15->77 22 explorer.exe 15->22 injected 26 conhost.exe 18->26         started        process9 dnsIp10 45 959tremont.com 184.168.131.241, 49725, 80 AS-26496-GO-DADDY-COM-LLCUS United States 22->45 47 www.959tremont.com 22->47 57 System process connects to network (likely due to code injection or exploit) 22->57 28 mstsc.exe 22->28         started        signatures11 process12 signatures13 65 Modifies the context of a thread in another process (thread injection) 28->65 67 Maps a DLL or memory area into another process 28->67 69 Tries to detect virtualization through RDTSC time measurements 28->69 31 cmd.exe 1 28->31         started        process14 process15 33 conhost.exe 31->33         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/257a36fdd79cbf165caeda4a1efe458034d670b71060693fdb0d2a1bf0489aa5/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-07-23 17:32:44 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ev5dn7oxts7rmxfo3jfb57sfqa2nm4fxcbqgsp63buvbx4citksq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
25644ff35da89545c702b633182c4ff1f649dd64c9c8249be9afe7090359d87d
Formbook
2a728511ab345b4207ea5959439df12205796548388cc170b427110f9cc247dd
Formbook
4d90c368dbb4c085f00a9d323996a1c6235acd5afadcbcf935d0b56a432a3410
Formbook
70dfd7bc81878d265e39803f73f55af96d7bf2a336408b52cc6005785fbe0415
Formbook
8da1dda33b97c3738bdafe9dfc6543827bb18c2e20a7cf6af60fc6a919e59ef0
Formbook
b3c5b3cf581d15fcbacf67b4bdba199bfe7089704875746109b3206eb07b99e2
Formbook
bdc84c917558fe1a4055309a8d6ad6d89d2cdf5a6741c218ace44f70489f9260
Formbook
c347c2d7579053d263f6ab6eddca7bd03691ebab93b30b5caba462caa7106beb
Formbook
f83b9181caf9fca96aa780504a6b8aeeb30ebde24c32e2943969586a75c4a70e
Formbook
+ 7'739 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:dxe rat spyware stealer trojan
Link:
https://tria.ge/reports/210816-tbm2l9eb3n/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.knighttechinca.com/dxe/
Unpacked files
SH256 hash:
82b76cb52e7135143e7e19e257d5eee8716e202521d37ec995ff5881d984bad3
MD5 hash:
83fe55a4dd78d4231a62124159d77652
SHA1 hash:
8f63071ec33d77fd671572fdd7f17a14b5fee00e
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/bf52f660-6f32-4105-a6f9-460d8a33ff03/
Parent samples :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 hash:
c362729899c5956cfa9fc3bcf9b21ac72066a1b84a497ceb1281f76e2f55c54b
MD5 hash:
0327d1374a5ce015ad9c83c5de76e823
SHA1 hash:
e521349d9e96a4191248747c42c78b6f88fc8f63
Link:
https://www.unpac.me/results/bf52f660-6f32-4105-a6f9-460d8a33ff03/
SH256 hash:
966588d05734e911612f74a43007fd09bbae813dcda8a968efe8a5dfcd5b91ec
MD5 hash:
539cc0e5b4424963c8393e4c40644697
SHA1 hash:
9bd0248b9f7611c2a66f0183cd70bc042d3749ca
Link:
https://www.unpac.me/results/bf52f660-6f32-4105-a6f9-460d8a33ff03/
SH256 hash:
257a36fdd79cbf165caeda4a1efe458034d670b71060693fdb0d2a1bf0489aa5
MD5 hash:
ae2de0b0e6acf9a4d009f367c8928e30
SHA1 hash:
84269fe071b6b944df79ca09d58fd60bbc2d666e
Link:
https://www.unpac.me/results/bf52f660-6f32-4105-a6f9-460d8a33ff03/
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/257a36fdd79cbf165caeda4a1efe458034d670b71060693fdb0d2a1bf0489aa5

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/179498/

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