MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 61b556e5d3b3f6005b4d8074e31cb3b3fd99a285b62e8f141c5ee52bdfeb9e44. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 61b556e5d3b3f6005b4d8074e31cb3b3fd99a285b62e8f141c5ee52bdfeb9e44
SHA3-384 hash: cb5f82e2016f877075886a2d7ea7c99dc140b1f8c7643951471cb1288100207643cb0828ca98e232bb1ab487a19425c3
SHA1 hash: d55c0017d44c6f92dab0a4590239633ae0d39c6d
MD5 hash: 8bbc0ba3f7e3de90ec5e840675fb4312
humanhash: washington-butter-equal-illinois
File name:file
Download: download sample
Signature CryptBot
Create hunting rule
File size:4'420'608 bytes
First seen:2024-11-27 00:25:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep 98304:aFDniBcAh8HUmTwW5WmBZ8QTVkibnwXFF/57ZY4BoXo4O:aFDnisPz9BZrTVkibAFF2Y4
TLSH T1A22633C14F45EAA6E268177460BDD3F68FE08FD169C4B5C862A6C419E726DD3F628C08
TrID 27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
20.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
18.5% (.EXE) Win32 Executable (generic) (4504/4/1)
8.4% (.ICL) Windows Icons Library (generic) (2059/9)
8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter Bitsight
Tags:CryptBot exe


Avatar
Bitsight
url: http://31.41.244.11/files/random.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
502
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-11-27 00:29:08 UTC
Tags:
themida antivm stealer cryptbot
Link:
https://app.any.run/tasks/4ae6d83b-3ab1-4f22-85ac-164670640f6d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6746671cb31374f09834f31b
Tags:
phishing autorun
Result
Verdict:
Clean
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for analyzing tools
Searching for the window
DNS request
Connection attempt
Sending a custom TCP request
Creating a window
Sending an HTTP POST request
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm crypto packed packed packer_detected
Link:
https://www.filescan.io/uploads/6746671b247d05160be390ff/reports/03d5128c-4d77-4eb5-b6a4-e0be1cdfa4e2/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/61b556e5d3b3f6005b4d8074e31cb3b3fd99a285b62e8f141c5ee52bdfeb9e44
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/88591f9f-c59c-462e-9e94-df95acde6adf
Result
Threat name:
Cryptbot
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1563496
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Attempt to bypass Chrome Application-Bound Encryption
Drops large PE files
Hides threads from debuggers
Leaks process information
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Sigma detected: Suspicious Scheduled Task Creation Involving Temp Folder
Suricata IDS alerts for network traffic
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Tries to evade debugger and weak emulator (self modifying code)
Tries to harvest and steal browser information (history, passwords, etc)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Cryptbot
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1563496 Sample: file.exe Startdate: 27/11/2024 Architecture: WINDOWS Score: 100 49 Suricata IDS alerts for network traffic 2->49 51 Antivirus / Scanner detection for submitted sample 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 6 other signatures 2->55 7 file.exe 5 3 2->7         started        12 service123.exe 2->12         started        14 service123.exe 2->14         started        16 4 other processes 2->16 process3 dnsIp4 41 twentykm20sr.top 34.118.89.252, 49731, 49732, 49739 GOOGLE-AS-APGoogleAsiaPacificPteLtdSG United States 7->41 43 httpbin.org 18.213.123.165, 443, 49730 AMAZON-AESUS United States 7->43 45 2 other IPs or domains 7->45 35 C:\Users\user\AppData\...\service123.exe, PE32 7->35 dropped 37 C:\Users\user\...\hZCNySjZlYfWBEqFJwFF.dll, PE32 7->37 dropped 57 Attempt to bypass Chrome Application-Bound Encryption 7->57 59 Tries to detect sandboxes and other dynamic analysis tools (window names) 7->59 61 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->61 63 8 other signatures 7->63 18 WerFault.exe 21 16 7->18         started        21 chrome.exe 7->21         started        24 schtasks.exe 1 7->24         started        26 service123.exe 7->26         started        file5 signatures6 process7 dnsIp8 33 C:\ProgramData\Microsoft\...\Report.wer, Unicode 18->33 dropped 39 239.255.255.250 unknown Reserved 21->39 28 chrome.exe 21->28         started        31 conhost.exe 24->31         started        file9 process10 dnsIp11 47 www.google.com 142.250.181.68, 443, 49747 GOOGLEUS United States 28->47
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/61b556e5d3b3f6005b4d8074e31cb3b3fd99a285b62e8f141c5ee52bdfeb9e44
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/61b556e5d3b3f6005b4d8074e31cb3b3fd99a285b62e8f141c5ee52bdfeb9e44/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-11-27 00:26:12 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
29 of 38 (76.32%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mg2vnzotwp3aaw2nqb2oghftwp6ztiufwyxi6fa4l3ssxx7ltzca._file
Result
Malware family:
cryptbot
Create hunting rule
Score:
  10/10
Tags:
family:cryptbot credential_access discovery evasion spyware stealer
Link:
https://tria.ge/reports/241127-aq69ysxlfz/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks installed software on the system
Checks BIOS information in registry
Checks computer location settings
Executes dropped EXE
Identifies Wine through registry keys
Loads dropped DLL
Reads user/profile data of web browsers
Uses browser remote debugging
Enumerates VirtualBox registry keys
Identifies VirtualBox via ACPI registry values (likely anti-VM)
CryptBot
Cryptbot family
Detects CryptBot payload
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5ef8029c-f868-499a-9077-2102cf4095b6
Unpacked files
SH256 hash:
ae42b801d07d94cecde471f90b0beffe5370f4be1161b908f3033ec256519906
MD5 hash:
2282a6350243d09417745f78e21bc7eb
SHA1 hash:
70e43d3f87da62cd556b6288235be92d84797129
Link:
https://www.unpac.me/results/7b57ef3d-d342-498b-8d6c-f1f507083dbb/
SH256 hash:
61b556e5d3b3f6005b4d8074e31cb3b3fd99a285b62e8f141c5ee52bdfeb9e44
MD5 hash:
8bbc0ba3f7e3de90ec5e840675fb4312
SHA1 hash:
d55c0017d44c6f92dab0a4590239633ae0d39c6d
Link:
https://www.unpac.me/results/7b57ef3d-d342-498b-8d6c-f1f507083dbb/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/61b556e5d3b3/report/overview.html
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/61b556e5d3b3f6005b4d8074e31cb3b3fd99a285b62e8f141c5ee52bdfeb9e44

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:pe_detect_tls_callbacks
Create hunting rule
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Web download

CryptBot

Executable exe 61b556e5d3b3f6005b4d8074e31cb3b3fd99a285b62e8f141c5ee52bdfeb9e44

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3253370/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical

Comments