MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 03fe3055e0b12aa4a2186a0a89ea58dfdf6a071679ba3950202204b3e62e7c8d. 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 3 File information Comments

SHA256 hash: 03fe3055e0b12aa4a2186a0a89ea58dfdf6a071679ba3950202204b3e62e7c8d
SHA3-384 hash: 8c0ef2cab90ff8d2a1eaeede74a8831b64b01c6aafd01801a3c3075539b0a6f709929442ea8cad99a9fd5ba09acfe8c2
SHA1 hash: 0c8d8e4b20c857c52231b4325e808a3d90c73505
MD5 hash: cabe7aa4a6430daab83f5d7f37aca904
humanhash: five-emma-autumn-mirror
File name:file
Download: download sample
Signature CryptBot
File size:4'470'272 bytes
First seen:2024-12-04 19:54:03 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:YH/+rzo66vzALS2c5SpRGRYhWnwxf+l5XPbSESGHEWJUg/ebBSF:4+/oBvcZYSpRGRoWnwly5XDaEKKCSF
TLSH T1A3263366C79B9C9CC1B60476CA935043BCEF77B9C384910F1E401052FAE939EA9DB792
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/martin/random.exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
464
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file.exe
Verdict:
Malicious activity
Analysis date:
2024-12-04 19:59:27 UTC
Tags:
antivm themida stealer cryptbot crypto-regex

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
phishing trojan virus 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
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
crypto packed packed packer_detected
Result
Threat name:
Clipboard Hijacker, Cryptbot
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
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
Leaks process information
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
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 Clipboard Hijacker
Yara detected Cryptbot
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1568707 Sample: file.exe Startdate: 04/12/2024 Architecture: WINDOWS Score: 100 50 Suricata IDS alerts for network traffic 2->50 52 Antivirus / Scanner detection for submitted sample 2->52 54 Multi AV Scanner detection for dropped file 2->54 56 8 other signatures 2->56 7 file.exe 3 2->7         started        12 service123.exe 2->12         started        14 service123.exe 2->14         started        16 2 other processes 2->16 process3 dnsIp4 40 home.fvtekx5vs.top 34.17.28.197, 49700, 49702, 49762 ATGS-MMD-ASUS United States 7->40 42 httpbin.org 44.196.3.45, 443, 49699 AMAZON-AESUS United States 7->42 44 2 other IPs or domains 7->44 36 C:\Users\user\AppData\...\service123.exe, PE32 7->36 dropped 38 C:\Users\user\...\ZZmnHrfutuBRZqgRbrVC.dll, PE32 7->38 dropped 64 Attempt to bypass Chrome Application-Bound Encryption 7->64 66 Tries to detect sandboxes and other dynamic analysis tools (window names) 7->66 68 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->68 70 8 other signatures 7->70 18 service123.exe 7->18         started        21 WerFault.exe 19 16 7->21         started        24 chrome.exe 7->24         started        27 schtasks.exe 1 7->27         started        file5 signatures6 process7 dnsIp8 58 Multi AV Scanner detection for dropped file 18->58 60 Found evasive API chain (may stop execution after checking mutex) 18->60 62 Found stalling execution ending in API Sleep call 18->62 34 C:\ProgramData\Microsoft\...\Report.wer, Unicode 21->34 dropped 46 239.255.255.250 unknown Reserved 24->46 29 chrome.exe 24->29         started        32 conhost.exe 27->32         started        file9 signatures10 process11 dnsIp12 48 www.google.com 142.250.181.68, 443, 49784, 49789 GOOGLEUS United States 29->48
Threat name:
Win32.Infostealer.Tinba
Status:
Malicious
First seen:
2024-12-04 19:55:20 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery evasion
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:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
9e0ba7f6465b1c007c9d865a6e28312cb35adc6692e1bf67a0d8e40b437ac6ea
MD5 hash:
483db43771fb5b72ae389eac4595ff31
SHA1 hash:
968e263fa8d9a24ef79e2edefe83c4f4d25eef6d
SH256 hash:
03fe3055e0b12aa4a2186a0a89ea58dfdf6a071679ba3950202204b3e62e7c8d
MD5 hash:
cabe7aa4a6430daab83f5d7f37aca904
SHA1 hash:
0c8d8e4b20c857c52231b4325e808a3d90c73505
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
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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 03fe3055e0b12aa4a2186a0a89ea58dfdf6a071679ba3950202204b3e62e7c8d

(this sample)

  
Dropped by
Amadey
  
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

Comments