MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 de7b53aa611115a5fd5ae91f3ad384b458e50e280c99e57b6c41ffd82a80b9e8. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: de7b53aa611115a5fd5ae91f3ad384b458e50e280c99e57b6c41ffd82a80b9e8
SHA3-384 hash: 30362cd162beabf8b1460fef576ae5cd735040ed39bb8c6c5c1a88b462fc4f03a2ad69bc65b85ea18ff0f27eec1fe349
SHA1 hash: a6713789f283c8ecc7955f0e5a08fc70fdc79f89
MD5 hash: 1f18b4c853eec2f96498ee5c3be8017f
humanhash: nineteen-mexico-mockingbird-washington
File name:1f18b4c853eec2f96498ee5c3be8017f
Download: download sample
Signature Formbook
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File size:502'784 bytes
First seen:2022-04-06 15:47:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'664 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:Ke4dED5iHyjz03jXexyBfajNskTZIf+RxOHWEt9Fh3cF:UdEDtjz03jXegQWkTZgoH29k
Threatray 12'022 similar samples on MalwareBazaar
TLSH T108B4121973AFDA11C06C56F3A0E209D443709B03A563D79B2BDE26DA2B127E60D52FC7
File icon (PE):PE icon
dhash icon f8e4f239d9b8f8e0 (21 x SnakeKeylogger, 20 x AgentTesla, 11 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
239
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/261398/
Detection(s):
Win.Dropper.LokiBot-9943279-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed
Link:
https://www.filescan.io/uploads/624db63f40ce5db9f41ca0d5/reports/3f96ab84-5653-4854-9ace-f40b9275c3bc/overview
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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ca729e0a-770f-4457-9e6d-26ac0c5f6524
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/971641
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
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: 604125 Sample: V6Ckxqb3eQ Startdate: 06/04/2022 Architecture: WINDOWS Score: 100 45 www.xljoa.com 2->45 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 Antivirus detection for URL or domain 2->55 57 10 other signatures 2->57 11 V6Ckxqb3eQ.exe 7 2->11         started        signatures3 process4 file5 37 C:\Users\user\AppData\...\sUBdRkumufCFvW.exe, PE32 11->37 dropped 39 C:\...\sUBdRkumufCFvW.exe:Zone.Identifier, ASCII 11->39 dropped 41 C:\Users\user\AppData\Local\...\tmpEC34.tmp, XML 11->41 dropped 43 C:\Users\user\AppData\...\V6Ckxqb3eQ.exe.log, ASCII 11->43 dropped 61 Uses schtasks.exe or at.exe to add and modify task schedules 11->61 63 Adds a directory exclusion to Windows Defender 11->63 15 RegSvcs.exe 11->15         started        18 powershell.exe 25 11->18         started        20 schtasks.exe 1 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 2 other signatures 15->77 22 explorer.exe 15->22 injected 26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        process9 dnsIp10 47 www.gruposalgar.store 22->47 49 www.blancopodcast.com 22->49 59 System process connects to network (likely due to code injection or exploit) 22->59 30 mstsc.exe 22->30         started        signatures11 process12 signatures13 65 Modifies the context of a thread in another process (thread injection) 30->65 67 Maps a DLL or memory area into another process 30->67 69 Tries to detect virtualization through RDTSC time measurements 30->69 33 cmd.exe 1 30->33         started        process14 process15 35 conhost.exe 33->35         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/de7b53aa611115a5fd5ae91f3ad384b458e50e280c99e57b6c41ffd82a80b9e8/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-04-06 15:48:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3z5vhktbcek2l7k25eptvu4ewrmokdribsm6k63mih75qkuaxhua._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
08bb3c1e40fec4d0cec3b6cf4d0cc4363b5f3544358d77ba94611a812f1eac62
Formbook
99bb3d1c9a2a4dad6465a81df1008b91f5836e51ce0463da76b31f9758dd9b62
Formbook
abf6e4dbdc36900f0f2be2111c9431704d2e770a92eba6bf9210cd39e18f5139
Formbook
d36aed39f3fb785951a4e948bcb4f86033a398ee0ddfef85040564751918b669
Formbook
e07c12a4c17554763b40b0ca410493875bbdd907bc8ba261a732d935e015f852
Formbook
f469b5c967ff28b96444a48b6769ccde102417de9d59df1878bfe486ade890dd
Formbook
f4bef0754be1d8e60471746bb06004a86ab38cb0ffb281973fd45f81b610307e
Formbook
+ 12'012 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:a0np loader rat suricata
Link:
https://tria.ge/reports/220406-s8rw4abdgm/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Blocklisted process makes network request
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
95299fb8d824bd6ff2cb1688daabdbb78993252faac151a0dad3832934c28691
MD5 hash:
83974bc7c1af55185007a4cfaad3327f
SHA1 hash:
9e7685748b04308e809545fcbab86ca37ca16472
Detections:
win_formbook_g0
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win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/1fd0c689-7434-49d2-8958-cda7e4889588/
Parent samples :
de7b53aa611115a5fd5ae91f3ad384b458e50e280c99e57b6c41ffd82a80b9e8
10fc8f0ad0451656949f8b77a87815c2efd7524374685f4b261732183858aa18
SH256 hash:
fe58122a2dc9f6b7c57eb945796affbcaa214b940cc31ea78bb3a93ec99b78bd
MD5 hash:
d4be86e94d2483566e3b788be1cf4658
SHA1 hash:
9e859c78492536bbcb13ce9a1efdebf5b73a6316
Link:
https://www.unpac.me/results/1fd0c689-7434-49d2-8958-cda7e4889588/
SH256 hash:
9208dba2bff27e0ba578405cc79168e4c70d2237d55a9dcc9e391a3009b30a50
MD5 hash:
b9f434e8109c238387039df2b92065cb
SHA1 hash:
49309126d03a699546cb4377c9142d6ff33e2bca
Link:
https://www.unpac.me/results/1fd0c689-7434-49d2-8958-cda7e4889588/
SH256 hash:
fb52f742acb8884ba4c8a191071b91d77247c1ae52efdbc35577c430b3f09227
MD5 hash:
66630e7d36e6e826020bfc1d31952b28
SHA1 hash:
3dde9e0ced4335f6cd0ba735bb819fcc10fdd29e
Link:
https://www.unpac.me/results/1fd0c689-7434-49d2-8958-cda7e4889588/
SH256 hash:
de7b53aa611115a5fd5ae91f3ad384b458e50e280c99e57b6c41ffd82a80b9e8
MD5 hash:
1f18b4c853eec2f96498ee5c3be8017f
SHA1 hash:
a6713789f283c8ecc7955f0e5a08fc70fdc79f89
Link:
https://www.unpac.me/results/1fd0c689-7434-49d2-8958-cda7e4889588/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/de7b53aa6111/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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 de7b53aa611115a5fd5ae91f3ad384b458e50e280c99e57b6c41ffd82a80b9e8

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2134274/
Cape
Cape
https://www.capesandbox.com/analysis/261398/

Comments


Avatar
zbet commented on 2022-04-06 15:47:42 UTC

url : hxxp://198.144.176.234/5050/vbc.exe