MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6ecfdff224175dade2cbf63719974b5335c1a81cf787142681163ddf882ce00e. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6ecfdff224175dade2cbf63719974b5335c1a81cf787142681163ddf882ce00e
SHA3-384 hash: 14bb18141b85d0b390b6d418b1a88cadda2a239a32b2cc2037ceda36ef6f5bd716982ba57c3122ddcdcb48833d0613c7
SHA1 hash: 4e3f76d79d8c299e35199c8d251c97e954a4da2e
MD5 hash: bb4bd9df1d18ee2ce11500789a4ea825
humanhash: freddie-low-alanine-enemy
File name:obizx.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:905'728 bytes
First seen:2022-02-22 16:10:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:d+NDXuv+4uwiwBe68IaIVUxADmhZrm2u:+U+4uwiwBT8sVUiDQZl
Threatray 13'891 similar samples on MalwareBazaar
TLSH T11115CF142AA71F3CF1B94BB249D1ECA4F7A8F6236D05F37D7D50219ACA52B408D422B7
File icon (PE):PE icon
dhash icon ce9c9496e4949c9c (73 x AgentTesla, 51 x SnakeKeylogger, 30 x Formbook)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
200
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/243301/
Detection(s):
SecuriteInfo.com.Trojan.MSIL.NanoBot.mc.30336.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed replace.exe update.exe
Link:
https://www.filescan.io/uploads/62150b1fa2660f3bb926bdfa/reports/2fc43e51-3a7b-4a03-bf8b-a7ed464f910f/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/06c36133-14de-485a-8335-d0fc434afbba
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/944113
Signature
.NET source code contains potential unpacker
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Application Executed Non-Executable Extension
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
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: 576591 Sample: obizx.exe Startdate: 22/02/2022 Architecture: WINDOWS Score: 100 37 Malicious sample detected (through community Yara rule) 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 Yara detected AntiVM3 2->41 43 6 other signatures 2->43 10 obizx.exe 3 2->10         started        process3 file4 33 C:\Users\user\AppData\Local\...\obizx.exe.log, ASCII 10->33 dropped 53 Tries to detect virtualization through RDTSC time measurements 10->53 14 obizx.exe 10->14         started        signatures5 process6 signatures7 55 Modifies the context of a thread in another process (thread injection) 14->55 57 Maps a DLL or memory area into another process 14->57 59 Sample uses process hollowing technique 14->59 61 Queues an APC in another process (thread injection) 14->61 17 explorer.exe 14->17 injected process8 process9 19 rundll32.exe 17->19         started        signatures10 45 Self deletion via cmd delete 19->45 47 Modifies the context of a thread in another process (thread injection) 19->47 49 Maps a DLL or memory area into another process 19->49 51 Tries to detect virtualization through RDTSC time measurements 19->51 22 cmd.exe 1 19->22         started        24 explorer.exe 19->24         started        27 explorer.exe 1 145 19->27         started        29 explorer.exe 1 172 19->29         started        process11 dnsIp12 31 conhost.exe 22->31         started        35 192.168.2.1 unknown unknown 24->35 process13
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6ecfdff224175dade2cbf63719974b5335c1a81cf787142681163ddf882ce00e/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-02-22 16:09:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
26
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=n3h574rec5o23ywl6y3rtf2lkm24dka466drijubcy657cbm4aha._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2ed8aeaf73ee1a3caf7eb0be7814868c4100efbe1b021e2d964db3b638dc7f3c
Formbook
3c010d88a118ba3cc666e05c6f8f82159ac38e5486b5ed60c65d870287b8cff6
Formbook
54cfa1f93d985c0bf952e00247f781f36988dffec0cb8d83f79fa3e41d98b335
Formbook
64bc60e87a87c9e85bd38a31000752b4d4c960a31ca8796ab2187ac1e34c068d
Formbook
921628eeb649a7c9f45ccb4b95ccecba8a76e273a88bdf8478c7e63cef2fb10a
Formbook
98a0baed911fcca09a50dd4dc17f6f65edf26cc6d834681b1d2a270bfbf3f45c
Formbook
9a0379b9363f704c49db190841ceb559ebed609d90f795df77ccf3b23765fa5d
Formbook
db4fa159359fbe0ba9857ae0e971dd206f23a7522b14073151b27bb030db8f5f
Formbook
ec575e5cdf3da323c27e65f3042586173ca50ba0682b733a61f0b47f80c3004e
Formbook
+ 13'881 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:o36a rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220222-tmx2nabhfp/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of SetThreadContext
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
175c8f1ac64f1231c4137162b195ec77a979a17823a425b65b12035128ba76ce
MD5 hash:
210c0e0d157e98c8abfff78f9e2b225d
SHA1 hash:
35f113ee2bc78d447481ac0164e16b1b256d467c
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/f6c22d92-5382-48f5-89a2-156e3c9dee3e/
Parent samples :
6ecfdff224175dade2cbf63719974b5335c1a81cf787142681163ddf882ce00e
6ed4597153654e9526d066d62bbf7cc0e7d7e0660049f9e3b826475d3fa71abe
0b32f79b8abe4a232193f819dccfa47a922353e961d37d1becd35171c2b04a89
8c7c6966c40ca10cdb43c9520c24ae932e63429fbc858b2c05f94f1bedbe0efa
SH256 hash:
e89ee1d1d5f1ffa8bdf883d6ca4e5cae51acf3bd5bad49ea49b3c3ca662b78d6
MD5 hash:
55fe50d83571bc493664ee4362d27340
SHA1 hash:
f8556cda0852af279ab94dc228105c84000b9ad0
Link:
https://www.unpac.me/results/f6c22d92-5382-48f5-89a2-156e3c9dee3e/
SH256 hash:
ab8f3e5098c452291edc638e6c9f252205f976f406a64efee3a0b0ea3e380636
MD5 hash:
5e43eb5d50f6d47b457027f49115fae8
SHA1 hash:
9cec09f04f7633cf4e81e1c77fcb615d8cbcfdcb
Link:
https://www.unpac.me/results/f6c22d92-5382-48f5-89a2-156e3c9dee3e/
SH256 hash:
e3bdaf9e98eb65a070cf4424bc123e57ade151c41e4a0d375e769749155c1715
MD5 hash:
78a25e75b94923e889ecd100349facbe
SHA1 hash:
6b3f8db525d3c98f92ed480e664ab8ee9458340b
Link:
https://www.unpac.me/results/f6c22d92-5382-48f5-89a2-156e3c9dee3e/
SH256 hash:
6ecfdff224175dade2cbf63719974b5335c1a81cf787142681163ddf882ce00e
MD5 hash:
bb4bd9df1d18ee2ce11500789a4ea825
SHA1 hash:
4e3f76d79d8c299e35199c8d251c97e954a4da2e
Link:
https://www.unpac.me/results/f6c22d92-5382-48f5-89a2-156e3c9dee3e/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/6ecfdff22417/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/6ecfdff224175dade2cbf63719974b5335c1a81cf787142681163ddf882ce00e

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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/243301/

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