MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c76d25be072f587dec61a182dbb0c485e1e8c66bccd1a613bb548c64172fa3cb. 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

CryptBot

Vendor detections: 7

Intelligence 7 IOCs 2 YARA 6 File information Comments 1

SHA256 hash:	c76d25be072f587dec61a182dbb0c485e1e8c66bccd1a613bb548c64172fa3cb
SHA3-384 hash:	8ffecbbce32145488c6bf8002d70f6dab8427b352387d6ab33ebd486399a4a7b75e22f64d93a98e0360223e4d8922e80
SHA1 hash:	422fb1f66c3c36f13005cccfd7337d97e31d6a73
MD5 hash:	857ab1a996a1b759f32006815532433b
humanhash:	eighteen-mars-aspen-grey
File name:	857ab1a996a1b759f32006815532433b.exe
Download:	download sample
Signature	CryptBot Create hunting rule
File size:	702'464 bytes
First seen:	2021-04-18 05:56:43 UTC
Last seen:	2021-04-18 06:46:59 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	624ff5ff9454a5e4bb5968e5104918e5 (1 x CryptBot, 1 x Tofsee)
ssdeep	12288:MFRwyGB+3v2zVAkU4KteGbRg1I2/7B4dGuDWKXX4orGXgL3fYe8Nt:gRwyGB+3+6kU5I2ReIvGuhX4MGwLPYe8
Threatray	143 similar samples on MalwareBazaar
TLSH	6AE4121172C1C072D0C67AB6E625C7F14EBEB4B91D56398BBBE10E785F342D1672A30A
Reporter	abuse_ch
Tags:	CryptBot exe

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOC	ThreatFox Reference
http://auffji62.top/index.php	https://threatfox.abuse.ch/ioc/8854/
http://marsav06.top/index.php	https://threatfox.abuse.ch/ioc/8857/

Intelligence

File Origin

# of uploads :

# of downloads :

125

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

857ab1a996a1b759f32006815532433b.exe

Verdict:

Malicious activity

Analysis date:

2021-04-18 06:00:38 UTC

Tags:

stealer trojan loader

Link:

https://app.any.run/tasks/4cfce86d-58a1-4816-b018-01956c1e41cf

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

CryptBot

Link:

https://www.capesandbox.com/analysis/137470/

Detection(s):

SecuriteInfo.com.Trojan.GenericKD.36729584.13676.25739.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a file in the %temp% directory

Deleting a recently created file

Creating a file

Delayed reading of the file

Reading critical registry keys

Creating a window

DNS request

Connection attempt

Sending an HTTP POST request

Sending a UDP request

Stealing user critical data

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.

Result

Threat name:

Cryptbot Glupteba

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/684488

Signature

Contains functionality to register a low level keyboard hook

Delayed program exit found

Detected unpacking (changes PE section rights)

Detected unpacking (overwrites its own PE header)

Found many strings related to Crypto-Wallets (likely being stolen)

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

May check the online IP address of the machine

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Obfuscated command line found

Submitted sample is a known malware sample

Tries to harvest and steal browser information (history, passwords, etc)

Uses ping.exe to check the status of other devices and networks

Uses ping.exe to sleep

Yara detected Cryptbot

Yara detected Glupteba

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/c76d25be072f587dec61a182dbb0c485e1e8c66bccd1a613bb548c64172fa3cb/

Gathering data

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=y5wslpqhf5mh33dbugbnxmgeqxq6rrtlzti2me53ksggifzpupfq._file

Verdict:

suspicious

Result

Malware family:

n/a

Score:

8/10

Tags:

discovery spyware stealer

Link:

https://tria.ge/reports/210418-d5ev42s8c6/

Behaviour

Checks processor information in registry

Delays execution with timeout.exe

Runs ping.exe

Suspicious behavior: AddClipboardFormatListener

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Drops startup file

Loads dropped DLL

Reads user/profile data of web browsers

Executes dropped EXE

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:	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_CryptoWallets Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore Create hunting rule
Author:	ditekSHen
Description:	Detects executables containing SQL queries to confidential data stores. Observed in infostealers

Rule name:	MALWARE_Win_CryptBot Create hunting rule
Author:	ditekSHen
Description:	CryptBot/Fugrafa stealer payload

Rule name:	Ping_Del_method_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	cmd ping IP nul del

Rule name:	with_sqlite Create hunting rule
Author:	Julian J. Gonzalez <info@seguridadparatodos.es>
Description:	Rule to detect the presence of SQLite data in raw image
Reference:	http://www.st2labs.com

File information

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

Web download

CryptBot

exe c76d25be072f587dec61a182dbb0c485e1e8c66bccd1a613bb548c64172fa3cb

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/1127420/

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/137470/

Comments

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a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-04-18 06:18:22 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0012.001] Anti-Static Analysis::Argument Obfuscation
1) [C0027.009] Cryptography Micro-objective::RC4::Encrypt Data
2) [C0021.004] Cryptography Micro-objective::RC4 PRGA::Generate Pseudo-random Sequence
3) [C0049] File System Micro-objective::Get File Attributes
4) [C0051] File System Micro-objective::Read File
5) [C0052] File System Micro-objective::Writes File
6) [C0007] Memory Micro-objective::Allocate Memory
7) [C0033] Operating System Micro-objective::Console
8) [C0034.001] Operating System Micro-objective::Set Variable::Environment Variable
9) [C0040] Process Micro-objective::Allocate Thread Local Storage
10) [C0041] Process Micro-objective::Set Thread Local Storage Value
11) [C0018] Process Micro-objective::Terminate Process