MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3143bd559f550db2212562c8b2bf2b15c09d7c839a9faac45015cc2190265a2. 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: b3143bd559f550db2212562c8b2bf2b15c09d7c839a9faac45015cc2190265a2
SHA3-384 hash: 1eef47951bc6405d705ee43521c11920e4495d0a6bece920adb3c12c3ee1779af66da4cbbc512056f327653b07d761db
SHA1 hash: 4d1b273997dd282a0245ef741518346733ab0c29
MD5 hash: ca335bb16a675c7a2e3696fd0f6f56b2
humanhash: jupiter-oven-mirror-apart
File name:ca335bb16a675c7a2e3696fd0f6f56b2.exe
Download: download sample
Signature CryptBot
Create hunting rule
File size:4'423'168 bytes
First seen:2024-12-17 08:32:56 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 49152:sRSI8a9Ymj3zweQfP17+mLGMcY4Nt9mRWTaU3w0nH8jhUgYu52Kh/hL749pFVRni:orJ8L8mSdKRWTaUgBj9bMKhWnUqGd7
TLSH T1E6263337BC2B5371ED1A0AF7139DB849B5D0D2263CE03C1BB12637CA93537A2A6D14A4
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 abuse_ch
Tags:CryptBot exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
378
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ca335bb16a675c7a2e3696fd0f6f56b2.exe
Verdict:
Malicious activity
Analysis date:
2024-12-17 08:33:51 UTC
Tags:
antivm themida stealer cryptbot crypto-regex
Link:
https://app.any.run/tasks/c86621a2-e35f-4cbc-8732-13a842d1617c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.Evo-gen.3341.31923.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67613867653a8698dfd8e01b
Tags:
autorun virus sage zusy
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Searching for analyzing tools
DNS request
Connection attempt
Sending a custom TCP request
Creating a window
Sending an HTTP POST request
Sending an HTTP GET request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
crypto packed packed packer_detected
Link:
https://www.filescan.io/uploads/67613741336b67ce9a2fee32/reports/05d38718-d419-4b7a-a3c6-0463ddfc7c0e/overview
Verdict:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/b3143bd559f550db2212562c8b2bf2b15c09d7c839a9faac45015cc2190265a2
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/38032031-c827-4d85-9492-a3c869383bca
Result
Threat name:
Cryptbot
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1576565
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Attempt to bypass Chrome Application-Bound Encryption
C2 URLs / IPs found in malware configuration
Drops large PE files
Found malware configuration
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: 1576565 Sample: eL4XYAHUrt.exe Startdate: 17/12/2024 Architecture: WINDOWS Score: 100 49 Suricata IDS alerts for network traffic 2->49 51 Found malware configuration 2->51 53 Antivirus / Scanner detection for submitted sample 2->53 55 8 other signatures 2->55 7 eL4XYAHUrt.exe 5 3 2->7         started        12 service123.exe 2->12         started        14 service123.exe 2->14         started        16 5 other processes 2->16 process3 dnsIp4 41 httpbin.org 98.85.100.80, 443, 49730 TWC-11351-NORTHEASTUS United States 7->41 43 twentygr20sb.top 34.141.219.230, 49731, 49732, 49739 ATGS-MMD-ASUS 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\...\VHRiDaKeifEXHXFjuthj.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 172.217.19.228, 443, 49749 GOOGLEUS United States 28->47
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b3143bd559f550db2212562c8b2bf2b15c09d7c839a9faac45015cc2190265a2
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b3143bd559f550db2212562c8b2bf2b15c09d7c839a9faac45015cc2190265a2/
Threat name:
Win32.Trojan.Amadey
Create hunting rule
Status:
Malicious
First seen:
2024-12-17 08:33:05 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
21 of 23 (91.30%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wmkdxvkz6vinwiqskywiwk7swfoatv6ihgu7vlcfafomegicmwra._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery evasion
Link:
https://tria.ge/reports/241217-kfvtaavpbw/
Behaviour
Suspicious behavior: EnumeratesProcesses
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks installed software on the system
Checks BIOS information in registry
Identifies Wine through registry keys
Enumerates VirtualBox registry keys
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Verdict:
Suspicious
Tags:
cryptbot suspicious_post_body
YARA:
n/a
Link:
https://app.threat.zone/submission/97dfcbdd-d272-47eb-8540-1245e40d4ad4
Unpacked files
SH256 hash:
309c97505b74ef99012d0fba6055f70d5c1cbc5e47673c03f4f431b009c28a1b
MD5 hash:
855ad07a1753803afc840e16a42c3579
SHA1 hash:
b67ec846068108947f3e18e8b2a0a57001d5deda
Detections:
CryptBot
Create hunting rule
Link:
https://www.unpac.me/results/677a28aa-2d25-4793-ab89-f51016e7feee/
SH256 hash:
b3143bd559f550db2212562c8b2bf2b15c09d7c839a9faac45015cc2190265a2
MD5 hash:
ca335bb16a675c7a2e3696fd0f6f56b2
SHA1 hash:
4d1b273997dd282a0245ef741518346733ab0c29
Link:
https://www.unpac.me/results/677a28aa-2d25-4793-ab89-f51016e7feee/
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: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 b3143bd559f550db2212562c8b2bf2b15c09d7c839a9faac45015cc2190265a2

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3331766/
  
Delivery method
Distributed via web download

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

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