MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b33d993baf0f52b1f0e01b6d6d4f568c37c21a641f41c8f6fb72c493f80a91a7. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b33d993baf0f52b1f0e01b6d6d4f568c37c21a641f41c8f6fb72c493f80a91a7
SHA3-384 hash: 902a9a0b8a25f14cd8a937d2f6aa5c9d0a896b7374c9837dff671539434d34aa60aa5cd43a0771659cdcfd640960b020
SHA1 hash: b458d00cab0449a1c9f0f9225cc5c326199425f6
MD5 hash: c68297282df3b519f90b07be11d5b2c3
humanhash: kansas-north-venus-bravo
File name:c68297282df3b519f90b07be11d5b2c3.exe
Download: download sample
Signature CryptBot
Create hunting rule
File size:4'464'128 bytes
First seen:2024-12-23 06:57:50 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:LfBXhUHRUyhPc25hvSIE2V7dm9D/4ija7X9D1C:VhM302dV7s9laphC
TLSH T16C2633026D615AA5CFD982FEC0925CC3D5B3BEDECFDCCB7436A81992E14252F5422E09
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 :
399
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
939310706200640f603a1fb3e6528c3a4bafa87e0d610e817a7824cf2e089bc7_Sigmanly
Verdict:
Malicious activity
Analysis date:
2024-12-22 09:14:29 UTC
Tags:
amadey botnet stealer loader themida cryptbot gcleaner auto coinminer arch-exec antivm
Link:
https://app.any.run/tasks/42ce95a7-ea24-404d-a8a2-d65258f990c0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Zusy-10040002-0
Create hunting rule

Win.Packed.Zusy-10040713-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67690a168a4d48ee35fe6b09
Tags:
autorun virus sage zusy
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
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/67690a0ef7937d37eb5103df/reports/c34ca931-9dba-4fd2-9a64-9723dd8f65ec/overview
Verdict:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/b33d993baf0f52b1f0e01b6d6d4f568c37c21a641f41c8f6fb72c493f80a91a7
Result
Verdict:
MALICIOUS
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/c53a5413-f20c-468e-a378-e0437a9a064d
Result
Threat name:
Cryptbot
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1579767
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: 1579767 Sample: kFrGefsAK3.exe Startdate: 23/12/2024 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 kFrGefsAK3.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 fivetk5sb.top 185.121.15.192, 49706, 49717, 49773 REDSERVICIOES Spain 7->41 43 httpbin.org 34.226.108.155, 443, 49700 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\...\CaHNbeclRGcBxNSvHjFX.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 142.250.181.132, 443, 49796, 49804 GOOGLEUS United States 28->47
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b33d993baf0f52b1f0e01b6d6d4f568c37c21a641f41c8f6fb72c493f80a91a7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b33d993baf0f52b1f0e01b6d6d4f568c37c21a641f41c8f6fb72c493f80a91a7/
Threat name:
Win32.Trojan.Amadey
Create hunting rule
Status:
Malicious
First seen:
2024-12-22 12:18:32 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
29 of 38 (76.32%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wm6zso5pb5jld4hadnww2t2wrq34egted5a4r5x3olcjh6aksgtq._file
Result
Malware family:
cryptbot
Create hunting rule
Score:
  10/10
Tags:
family:cryptbot discovery evasion spyware stealer
Link:
https://tria.ge/reports/241223-hrjt2sxmgn/
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)
CryptBot
Cryptbot family
Verdict:
Malicious
Tags:
Win.Packed.Zusy-10040002-0
YARA:
n/a
Link:
https://app.threat.zone/submission/5f5813c8-7285-4872-8177-ddf2b1e4b205
Unpacked files
SH256 hash:
fa922d64e0a22971334c7f321b3a5ef48a55fada55ca64d82dabba3eab8fbc90
MD5 hash:
f50ec96749e13825c25c6aba239a71a2
SHA1 hash:
caf120c772e24a64bba8d97e21eca4d1548466ea
Detections:
CryptBot
Create hunting rule
Link:
https://www.unpac.me/results/329419be-f29d-47a2-b8b1-092a0b55dabc/
SH256 hash:
b33d993baf0f52b1f0e01b6d6d4f568c37c21a641f41c8f6fb72c493f80a91a7
MD5 hash:
c68297282df3b519f90b07be11d5b2c3
SHA1 hash:
b458d00cab0449a1c9f0f9225cc5c326199425f6
Link:
https://www.unpac.me/results/329419be-f29d-47a2-b8b1-092a0b55dabc/
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/b33d993baf0f52b1f0e01b6d6d4f568c37c21a641f41c8f6fb72c493f80a91a7

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 b33d993baf0f52b1f0e01b6d6d4f568c37c21a641f41c8f6fb72c493f80a91a7

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3346525/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3331763/

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