MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c146576ec1b3b983291dfcc520a24f9e1f7a22ad33c49baef056ef1a8533a6e7. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c146576ec1b3b983291dfcc520a24f9e1f7a22ad33c49baef056ef1a8533a6e7
SHA3-384 hash: 58e6ca148d6abf5bd1a3002e45468efcfbd3568fa7c3a020f7c7df05282dd19a0e3b53fa21f3b8afba901065743fa839
SHA1 hash: 557776b141ea228ae68cfda2e3379183301e5ee8
MD5 hash: b6eabb4e26b14f48529f2a8e930c1267
humanhash: winner-hot-cola-one
File name:b6eabb4e26b14f48529f2a8e930c1267.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:857'088 bytes
First seen:2022-02-24 08:59:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:fSY4thjzOWyLSD0f2rJjr//HEUiJsS17I5JG7ck7PXge7SvwLvFVJQiFsJ9:63cLe0fid8OS1M5ilXcvwLvFk1
Threatray 13'605 similar samples on MalwareBazaar
TLSH T10E0512C4F6448528ED5F17356536DD721A23BD6E60305A6C2ECE3DBB3DFB6A208019A3
File icon (PE):PE icon
dhash icon d4c4c4d8ccd4f0c4 (63 x Formbook, 23 x AgentTesla, 8 x RemcosRAT)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
197
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/244184/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Adding an access-denied ACE
Using the Windows Management Instrumentation requests
Launching a process
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Launching cmd.exe command interpreter
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
fingerprint obfuscated packed stealer
Link:
https://www.filescan.io/uploads/62174937a6f52d32f17f3a5e/reports/08a58a5f-31c3-4795-aafd-a7c3eddf5dd4/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7c8ee4d7-9849-4daa-9fbc-b6f2d6935016
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/945510
Signature
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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
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
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 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
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 577988 Sample: eV0F80E9fs.exe Startdate: 24/02/2022 Architecture: WINDOWS Score: 100 31 www.wayfinderacu.com 2->31 33 www.browsealto.com 2->33 35 2 other IPs or domains 2->35 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 11 other signatures 2->49 11 eV0F80E9fs.exe 1 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\eV0F80E9fs.exe.log, ASCII 11->29 dropped 59 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 11->59 15 CheckNetIsolation.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 2 other signatures 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 37 www.dtsddcpj.com 154.64.44.5, 49789, 80 COGENT-174US United States 18->37 39 shops.myshopify.com 23.227.38.74, 49790, 49792, 80 CLOUDFLARENETUS Canada 18->39 41 2 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 22 cmmon32.exe 18->22         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c146576ec1b3b983291dfcc520a24f9e1f7a22ad33c49baef056ef1a8533a6e7/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-02-24 09:00:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yfdfo3wbwo4ygki57tcsbisptypxuivngpcjxlxqk3xrvbjtu3tq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0c14a21116ea3497be0c08563fc63f52b51b48bbab421face0ef44450cf09128
Formbook
2f9798283768d3d6f0cd95b710f69697f8d3ee8c98b33cf9b2a6c9f870e035f1
Formbook
66057851f8f534441fd89a161f2df30610f1c44554a209c67c09fee531f6a680
Formbook
7eb60b42eb8755d31d411c32b45f7431eb9e084fb0749d92c83ffe2598b6564c
Formbook
88bdebfec843e9f4ee4687b3a9a3bc80ac9d4890c5bbead14b996e50732b41a6
Formbook
959b7ce61e82bc7f837042b10627c2d87442d52a243eafa8b837419ec0174418
Formbook
96077c533e59e3b8cf38826e5e37e35f1f2eb44d356eae6575223158b565198e
Formbook
b16d2a78f80531520e667edc5262172ef8c9258bb7e6e95801b3c93a2adcfefc
Formbook
e5ba1cfe2454e107c54219a4368bbe6921069e3e51608079bbfcfc0593caa4a0
Formbook
+ 13'595 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader campaign:yrcy evasion loader persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220224-kydbysdggk/
Behaviour
Modifies Internet Explorer settings
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
Drops file in Program Files directory
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Adds policy Run key to start application
Executes dropped EXE
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
9ee2afe8561e53d8cefffa50858153555a94b24da3954ccf8bbb4756b362b479
MD5 hash:
f6afc6a471dfefaa436314ce075de519
SHA1 hash:
70bed2014c90f054a0f7ecd4e3b16383efe119ce
Link:
https://www.unpac.me/results/e26f65a6-2ea3-424d-978e-459656d59255/
SH256 hash:
70b785e5cb5b2e61c0f5da4a71ab0bbd14d9a0849387f037e0d75cc1ffe0a082
MD5 hash:
5951b52c9b4d11ca7f4f33e5a3fb2c31
SHA1 hash:
0bc54fd699fff7b93e5c447a141c0d904924ab0d
Link:
https://www.unpac.me/results/e26f65a6-2ea3-424d-978e-459656d59255/
SH256 hash:
c146576ec1b3b983291dfcc520a24f9e1f7a22ad33c49baef056ef1a8533a6e7
MD5 hash:
b6eabb4e26b14f48529f2a8e930c1267
SHA1 hash:
557776b141ea228ae68cfda2e3379183301e5ee8
Link:
https://www.unpac.me/results/e26f65a6-2ea3-424d-978e-459656d59255/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/c146576ec1b3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.54
Link:
https://yomi.yoroi.company/submissions/c146576ec1b3b983291dfcc520a24f9e1f7a22ad33c49baef056ef1a8533a6e7

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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Web download

Formbook

Executable exe c146576ec1b3b983291dfcc520a24f9e1f7a22ad33c49baef056ef1a8533a6e7

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2055511/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/244184/

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