MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31efd803dbe615e98301fb55c581fce281b1a8a9e5f213f5d834489b30cee4d4. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments

SHA256 hash: 31efd803dbe615e98301fb55c581fce281b1a8a9e5f213f5d834489b30cee4d4
SHA3-384 hash: 110016b3a56bbe629469958a27339b70710a34acb8d0bd5df3a35210839a8fe68e3faff8293bb8f53ee1bda5cb98365a
SHA1 hash: 29c4a4d385c988af1f6b2017be70f8fecc030365
MD5 hash: e728a780658baeee278607764b7dbc5a
humanhash: shade-lamp-saturn-washington
File name:e728a780658baeee278607764b7dbc5a.exe
Download: download sample
Signature CryptBot
File size:403'456 bytes
First seen:2021-12-06 13:01:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5e0a2673583e2509366fb3f750a3f731 (5 x RedLineStealer, 3 x RaccoonStealer, 3 x CryptBot)
ssdeep 6144:5lOJicpNou1JOBsePbqsthzDVXFmdV20Vp3yAxGZVlFRTQGW8aPA:5A/pNJKvbqsjzDVXYa0VpinMVP
Threatray 156 similar samples on MalwareBazaar
TLSH T1E584DF1172D0C033D48664B68925CBB15EBAB5751BA22ACFBBD85FBC4F243D2972530E
File icon (PE):PE icon
dhash icon d2b1e4c4e4b987f9 (5 x RedLineStealer, 3 x Smoke Loader, 2 x CryptBot)
Reporter abuse_ch
Tags:CryptBot exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
173
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
e728a780658baeee278607764b7dbc5a.exe
Verdict:
Malicious activity
Analysis date:
2021-12-06 23:17:33 UTC
Tags:
stealer trojan

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a window
DNS request
Sending a custom TCP request
Result
Malware family:
n/a
Score:
  4/10
Tags:
n/a
Behaviour
MeasuringTime
CPUID_Instruction
SystemUptime
CheckCmdLine
EvasionGetTickCount
EvasionQueryPerformanceCounter
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
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
Detection:
malicious
Classification:
troj.spyw.evad
Score:
92 / 100
Signature
C2 URLs / IPs found in malware configuration
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 sample
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Yara detected Cryptbot
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.CryptBot
Status:
Malicious
First seen:
2021-12-06 13:02:15 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Result
Malware family:
cryptbot
Score:
  10/10
Tags:
family:cryptbot discovery spyware stealer
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Deletes itself
Reads data files stored by FTP clients
Reads user/profile data of web browsers
CryptBot
Unpacked files
SH256 hash:
2d3c2a950163c0bb2d8c5696fdfd6a9fd0db8a4e62268c9cf62b56056a03b15b
MD5 hash:
7036b0a656837de3ecb67a753e17e9e2
SHA1 hash:
a21b4ff07be659eebc42148fa684f54e0702a20c
SH256 hash:
31efd803dbe615e98301fb55c581fce281b1a8a9e5f213f5d834489b30cee4d4
MD5 hash:
e728a780658baeee278607764b7dbc5a
SHA1 hash:
29c4a4d385c988af1f6b2017be70f8fecc030365
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
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
Author:ditekSHen
Description:Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers
Rule name:MALWARE_Win_CryptBot
Author:ditekSHen
Description:CryptBot/Fugrafa stealer payload

File information


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

Web download

CryptBot

Executable exe 31efd803dbe615e98301fb55c581fce281b1a8a9e5f213f5d834489b30cee4d4

(this sample)

  
Delivery method
Distributed via web download

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