MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a5c463db805e356cb6e73e5676b397eab265e061c6797e27b626b8b4aee892a3. 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: 8


Intelligence 8 IOCs 2 YARA 6 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a5c463db805e356cb6e73e5676b397eab265e061c6797e27b626b8b4aee892a3
SHA3-384 hash: 69263f60e4aa4dc2acc2befc06d90506a3e6482025e8acdb6a927e9ea735104ec906c7d19cfc483fb55d579903c14ef5
SHA1 hash: 33c3d82ad1a6ae6025f3c6d7230b7182da4b0765
MD5 hash: e458dc2ba9e161ea08ff8bebea2a469e
humanhash: hot-maine-pizza-venus
File name:a5c463db805e356cb6e73e5676b397eab265e061c6797.exe
Download: download sample
Signature CryptBot
Create hunting rule
File size:758'272 bytes
First seen:2021-05-11 15:15:51 UTC
Last seen:2021-05-11 15:51:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7c7468077fdc0ac19fd97bae9e84d6b6 (1 x CryptBot)
ssdeep 12288:0LbDQ1c1lf8x4vIN92yhfgO8B8dpSfWGklyqJ64Ocg8PZCpdnvkv5:0LXQ1c19e44jgN8dpWWGvw6zcdhIdnvo
Threatray 114 similar samples on MalwareBazaar
TLSH 4CF4F11132E1D032E1B725754575C7B80ABBB4722B789ACFAAC54BB94F24AC0DE3570B
Reporter abuse_ch
Tags:CryptBot exe


Avatar
abuse_ch
CryptBot C2:
http://remdvz22.top/index.php

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://remdvz22.top/index.php https://threatfox.abuse.ch/ioc/35479/
http://morjgs02.top/index.php https://threatfox.abuse.ch/ioc/35480/

Intelligence

File Origin
# of uploads :
2
# of downloads :
216
Origin country :
n/a
Vendor Threat Intelligence
Detection:
CryptBot
Create hunting rule
Link:
https://www.capesandbox.com/analysis/155154/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware1.2710.1614.UNOFFICIAL
Create hunting rule

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
Sending a UDP request
DNS request
Sending an HTTP POST request
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Launching a process
Stealing user critical data
Enabling autorun by creating a file
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.
Result
Threat name:
Cryptbot Glupteba
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/778781
Signature
C2 URLs / IPs found in malware configuration
Delayed program exit found
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
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)
Multi AV Scanner detection for submitted file
Tries to harvest and steal browser information (history, passwords, etc)
Yara detected Cryptbot
Yara detected Glupteba
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 411177 Sample: a5c463db805e356cb6e73e5676b... Startdate: 11/05/2021 Architecture: WINDOWS Score: 100 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 9 other signatures 2->49 8 a5c463db805e356cb6e73e5676b397eab265e061c6797.exe 48 2->8         started        13 SmartClock.exe 2->13         started        15 SmartClock.exe 2->15         started        process3 dnsIp4 37 remdvz22.top 34.86.24.123, 49725, 80 GOOGLEUS United States 8->37 39 morjgs02.top 35.233.146.63, 49728, 80 GOOGLEUS United States 8->39 41 sulsxq03.top 35.245.17.142, 49729, 49730, 80 GOOGLEUS United States 8->41 35 C:\Users\user\AppData\Local\TempbehaviorgraphIXFo.exe, PE32 8->35 dropped 59 Detected unpacking (changes PE section rights) 8->59 61 Detected unpacking (overwrites its own PE header) 8->61 63 Tries to harvest and steal browser information (history, passwords, etc) 8->63 17 cmd.exe 1 8->17         started        19 cmd.exe 1 8->19         started        file5 signatures6 process7 process8 21 GIXFo.exe 4 17->21         started        25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        29 timeout.exe 1 19->29         started        file9 33 C:\Users\user\AppData\...\SmartClock.exe, PE32 21->33 dropped 51 Detected unpacking (changes PE section rights) 21->51 53 Detected unpacking (overwrites its own PE header) 21->53 55 Machine Learning detection for dropped file 21->55 57 Delayed program exit found 21->57 31 SmartClock.exe 21->31         started        signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a5c463db805e356cb6e73e5676b397eab265e061c6797e27b626b8b4aee892a3/
Threat name:
Win32.Trojan.ArkeiStealer
Create hunting rule
Status:
Malicious
First seen:
2021-05-11 15:16:17 UTC
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uxcghw4aly2wznxhhzlhnm4x5kzglydbyz4x4j5we24ljlxiskrq._file
Verdict:
suspicious
Similar samples:
3688975dcd3f7829cfe55f7dd46166e0d6bd46c842c169c9fb4adb317f1d571f
CryptBot
388d18b98704bff34ac1cb0a6603e68ba300205ee2f14e4bf482f1012d933231
CryptBot
6c219118acdf6e43d54298e2a7c268c0877a4f31c207cd29d2e038a858cea9fe
CryptBot
7b55f92633f9e8b7aad9234dd19148549c4b068f8199bb2ea4cfa6ef3175e569
CryptBot
8a9ed010aa3db217f81dfa4d928863eef5cac1165dab6c03258948b8ef019435
CryptBot
9cda1177646d0a69217e80541b33a93f1343a3406729fd09fb19a19808cfed4b
CryptBot
b0e796694c790548cf9553a6ed536b21e8471064c4ae887304137ffcafbe257f
CryptBot
b9fe450826cf7e036b06af03cee2288464efff6bc72c4ada9299c38128ee5f77
CryptBot
e9da1da3a4fb2050b9b17f5dbb1dd5f334f22637fc8186052d152cc631839f9b
CryptBot
fa83c0bb710987cdf1c5ed15400d938bc818d20c34af9e96e8cd99fc2ac3a172
CryptBot
+ 104 additional samples on MalwareBazaar
Result
Malware family:
cryptbot
Create hunting rule
Score:
  10/10
Tags:
family:cryptbot discovery spyware stealer
Link:
https://tria.ge/reports/210511-d88dj8gagx/
Behaviour
Checks processor information in registry
Delays execution with timeout.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
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
CryptBot
CryptBot Payload
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/a5c463db805e356cb6e73e5676b397eab265e061c6797e27b626b8b4aee892a3

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.

Cape
Cape
https://www.capesandbox.com/analysis/155154/

Comments


Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-11 16:00:36 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [C0003.002] Communication Micro-objective::Connect Pipe::Interprocess Communication
1) [C0027.009] Cryptography Micro-objective::RC4::Encrypt Data
2) [C0021.004] Cryptography Micro-objective::RC4 PRGA::Generate Pseudo-random Sequence
3) [C0046] File System Micro-objective::Create Directory
4) [C0049] File System Micro-objective::Get File Attributes
5) [C0051] File System Micro-objective::Read File
6) [C0050] File System Micro-objective::Set File Attributes
7) [C0052] File System Micro-objective::Writes File
8) [C0033] Operating System Micro-objective::Console
9) [C0034.001] Operating System Micro-objective::Set Variable::Environment Variable
10) [C0040] Process Micro-objective::Allocate Thread Local Storage
11) [C0041] Process Micro-objective::Set Thread Local Storage Value
12) [C0018] Process Micro-objective::Terminate Process