MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1b9bf43e9488615465150e648fa594e98c21114214456696626d82439c05345. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a1b9bf43e9488615465150e648fa594e98c21114214456696626d82439c05345
SHA3-384 hash: e7a779f5f54eae1d250127a07372557b5111b4aea6a8d40cbf7c87e15a7ba0222db3546e319327433765b270cc0df933
SHA1 hash: 5039074352bb79df6728ea5fb7ed226efe79a23f
MD5 hash: 94b60bd275ec39f3ad8b9030941ac33e
humanhash: summer-alpha-angel-georgia
File name:file
Download: download sample
Signature CryptBot
Create hunting rule
File size:4'420'608 bytes
First seen:2024-11-13 13:36:22 UTC
Last seen:2024-11-13 13:56:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep 98304:9R3BeHXSW7VBA0bU7qaTP0U7EjIrLsoweuVHysgYFjrioHWXq0:9neiWI0Y8KEAsDe8HFg0Leq
TLSH T13B2633312E4D1512D5EC787C9CBAAB70DD21169490FB9C78EF5FB4128C2BA82DA31C76
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 :
11
# of downloads :
400
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-11-13 13:44:41 UTC
Tags:
stealer cryptbot themida
Link:
https://app.any.run/tasks/343a37e6-9c7c-4560-954a-29041282a980

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67351a770552fd58596bb92b
Tags:
phishing autorun
Result
Verdict:
Clean
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for analyzing tools
Searching for the window
DNS request
Connection attempt
Sending an HTTP GET request
Creating a window
Verdict:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/a1b9bf43e9488615465150e648fa594e98c21114214456696626d82439c05345
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/1b832f3e-6db3-402d-b291-2b6cb647c853
Result
Threat name:
Clipboard Hijacker, Cryptbot
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1555163
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Attempt to bypass Chrome Application-Bound Encryption
Drops large PE files
Found evasive API chain (may stop execution after checking mutex)
Found stalling execution ending in API Sleep call
Hides threads from debuggers
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 (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 Clipboard Hijacker
Yara detected Cryptbot
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1555163 Sample: file.exe Startdate: 13/11/2024 Architecture: WINDOWS Score: 100 52 Suricata IDS alerts for network traffic 2->52 54 Antivirus detection for URL or domain 2->54 56 Antivirus / Scanner detection for submitted sample 2->56 58 7 other signatures 2->58 7 file.exe 5 4 2->7         started        12 service123.exe 2->12         started        14 service123.exe 2->14         started        process3 dnsIp4 40 fvteja5sb.top 141.8.199.217, 49708, 49711, 49712 SPRINTHOSTRU Russian Federation 7->40 42 127.0.0.1 unknown unknown 7->42 44 home.fvteja5sb.top 7->44 34 C:\Users\user\AppData\...\service123.exe, PE32 7->34 dropped 36 C:\Users\user\...\paYEJufarhQcjiZgkpGA.dll, PE32 7->36 dropped 60 Attempt to bypass Chrome Application-Bound Encryption 7->60 62 Tries to detect sandboxes and other dynamic analysis tools (window names) 7->62 64 Uses schtasks.exe or at.exe to add and modify task schedules 7->64 66 7 other signatures 7->66 16 service123.exe 7->16         started        19 WerFault.exe 19 16 7->19         started        22 chrome.exe 7->22         started        25 schtasks.exe 1 7->25         started        file5 signatures6 process7 dnsIp8 48 Found evasive API chain (may stop execution after checking mutex) 16->48 50 Found stalling execution ending in API Sleep call 16->50 32 C:\ProgramData\Microsoft\...\Report.wer, Unicode 19->32 dropped 38 239.255.255.250 unknown Reserved 22->38 27 chrome.exe 22->27         started        30 conhost.exe 25->30         started        file9 signatures10 process11 dnsIp12 46 www.google.com 142.250.184.228, 443, 49714, 49718 GOOGLEUS United States 27->46
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a1b9bf43e9488615465150e648fa594e98c21114214456696626d82439c05345
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a1b9bf43e9488615465150e648fa594e98c21114214456696626d82439c05345/
Threat name:
Win32.Trojan.Amadey
Create hunting rule
Status:
Malicious
First seen:
2024-11-13 13:37:08 UTC
File Type:
PE (Exe)
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ug436q7jjcdbkrsrkdter6szj2mmeeiuefcfm2lge3mciooakncq._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/241113-qwsxhswmbl/
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
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/b3da79c9-0826-4b59-84dc-404fcca63ade
Unpacked files
SH256 hash:
108b2ecc6b3e0b545354c4e33c24551f770a4f33533ec2fc6e1350c909b98cd5
MD5 hash:
1568e7d13c7d6c2b667b76174fa27c4f
SHA1 hash:
63cc5b375cc2e70117f839316b93fadc547ae2c0
Link:
https://www.unpac.me/results/33080f57-e7fb-4c1b-ae3a-a472ceb92753/
SH256 hash:
a1b9bf43e9488615465150e648fa594e98c21114214456696626d82439c05345
MD5 hash:
94b60bd275ec39f3ad8b9030941ac33e
SHA1 hash:
5039074352bb79df6728ea5fb7ed226efe79a23f
Link:
https://www.unpac.me/results/33080f57-e7fb-4c1b-ae3a-a472ceb92753/
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/a1b9bf43e9488615465150e648fa594e98c21114214456696626d82439c05345

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

File information

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

Web download

CryptBot

Executable exe a1b9bf43e9488615465150e648fa594e98c21114214456696626d82439c05345

(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