MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8f91477ce40680cfffed8cc77a5d67087748f85071d03972ae5bd18357a4611a. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments

SHA256 hash: 8f91477ce40680cfffed8cc77a5d67087748f85071d03972ae5bd18357a4611a
SHA3-384 hash: 42eae5583edfcb20bf5efb181586d05074b411a5264e964a17d85daffa8316dc87e77fc60a3c0615281cb9d972355bb3
SHA1 hash: b6f7eaedefa3d06adb8eb0e80984ee15c3ce4de7
MD5 hash: c132e8f3434a2c4ac1d3479f0e5d2d70
humanhash: mexico-bakerloo-louisiana-dakota
File name:c132e8f3434a2c4ac1d3479f0e5d2d70.exe
Download: download sample
Signature CryptBot
File size:402'432 bytes
First seen:2021-12-06 06:28:14 UTC
Last seen:2021-12-06 08:58:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash c6dd551f3faaabc1b84b7af1e0dd4536 (2 x CryptBot)
ssdeep 6144:CSwJTbdflucCDfZzHzA4Ot4xHEZSSRku/pRkdRA11sfm1+hj:CSwJbfuDfZzHzA4U4Na2uhqj/ua
Threatray 411 similar samples on MalwareBazaar
TLSH T1F384DF1172C0D033D09364B58D25CBB69E7AB4701B662ACBBBD95FB91F343D2A62530E
File icon (PE):PE icon
dhash icon d2b1e4d4ecb987f9 (38 x RedLineStealer, 18 x RaccoonStealer, 15 x Smoke Loader)
Reporter abuse_ch
Tags:CryptBot exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
154
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c132e8f3434a2c4ac1d3479f0e5d2d70.exe
Verdict:
Malicious activity
Analysis date:
2021-12-06 06:30:11 UTC
Tags:
trojan stealer

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

Behaviour
Creating a file in the %temp% subdirectories
Creating a window
DNS request
Sending an HTTP POST request
Running batch commands
Creating a process with a hidden window
Result
Malware family:
n/a
Score:
  4/10
Tags:
n/a
Behaviour
SystemUptime
CPUID_Instruction
MeasuringTime
CheckCmdLine
EvasionGetTickCount
EvasionQueryPerformanceCounter
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
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
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 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
Multi AV Scanner detection for submitted file
Sigma detected: Suspicious PowerShell Invocations - Generic
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.SelfDel
Status:
Malicious
First seen:
2021-12-06 06:29:12 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
23 of 28 (82.14%)
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:
8fea1a0ff6237290a806b7d623b92eee6a8002cdb4a18328ee03bc0377c20776
MD5 hash:
9ec3ac95c695f48607d73cb09ac55a2d
SHA1 hash:
34db569b76832be10a0380a054598519fff4b693
SH256 hash:
8f91477ce40680cfffed8cc77a5d67087748f85071d03972ae5bd18357a4611a
MD5 hash:
c132e8f3434a2c4ac1d3479f0e5d2d70
SHA1 hash:
b6f7eaedefa3d06adb8eb0e80984ee15c3ce4de7
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 8f91477ce40680cfffed8cc77a5d67087748f85071d03972ae5bd18357a4611a

(this sample)

  
Delivery method
Distributed via web download

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