MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b13e998f2ff4a85592d2851454e9b83b939d15aeb8d48552ed9b6efc816dc767. 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



Threat unknown


Vendor detections: 13


Intelligence 13 IOCs YARA 11 File information Comments

SHA256 hash: b13e998f2ff4a85592d2851454e9b83b939d15aeb8d48552ed9b6efc816dc767
SHA3-384 hash: fee4f1d28bb3c5943060da5104f145e8755e7b31efa8a3b418cb988701d73e44707bd09a9c0f1779c0beb2b16bcf6e24
SHA1 hash: 8f615c60f12dead96dc496b9565a60d95634c1fc
MD5 hash: cbe229af9f4f4255c6db54373197050d
humanhash: salami-violet-autumn-oscar
File name:cloudbase.exe
Download: download sample
File size:2'909'184 bytes
First seen:2025-08-19 05:35:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7c7cb93fe8d1e96e02d70924be8171d1
ssdeep 24576:KLnNAsZyU8ewXly2rrmgULwdI1U5RHa+qnkV0SKxPz3q7OSmUrzU7jKqO8HiAmZP:KTC2wVy8wn1Ueo0BxrNSzzU7M83GZg
Threatray 16 similar samples on MalwareBazaar
TLSH T149D53B58E4AE1998C8D3807449D830E2A6F83944093D4773B7E3AF853B9E79CA25F747
TrID 43.3% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
27.6% (.EXE) Win64 Executable (generic) (10522/11/4)
13.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.3% (.EXE) OS/2 Executable (generic) (2029/13)
5.2% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
dhash icon f4c4cadadcc3ccb4
Reporter abuse_ch
Tags:exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
50
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_b13e998f2ff4a85592d2851454e9b83b939d15aeb8d48552ed9b6efc816dc767.exe
Verdict:
Malicious activity
Analysis date:
2025-08-18 16:07:02 UTC
Tags:
xor-url generic

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
emotet cobalt
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Connection attempt
Creating a file in the drivers directory
Launching a process
Creating a process with a hidden window
Searching for synchronization primitives
Sending a custom TCP request
Сreating synchronization primitives
Creating a window
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
microsoft_visual_cc obfuscated threat
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Benign windows process drops PE files
Changes memory attributes in foreign processes to executable or writable
Contains functionality to inject code into remote processes
Contains functionality to inject threads in other processes
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Drops executables to the windows directory (C:\Windows) and starts them
Found direct / indirect Syscall (likely to bypass EDR)
Found evasive API chain checking for user administrative privileges
Hijacks the control flow in another process
Joe Sandbox ML detected suspicious sample
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Windows Binaries Write Suspicious Extensions
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1759888 Sample: cloudbase.exe Startdate: 19/08/2025 Architecture: WINDOWS Score: 100 37 www.wshifen.com 2->37 39 www.baidu.com 2->39 41 2 other IPs or domains 2->41 55 Antivirus detection for dropped file 2->55 57 Antivirus / Scanner detection for submitted sample 2->57 59 Multi AV Scanner detection for dropped file 2->59 61 5 other signatures 2->61 10 cloudbase.exe 2->10         started        14 drivers.exe 2->14         started        signatures3 process4 dnsIp5 45 www.wshifen.com 103.235.46.102, 49691, 80 BAIDUBeijingBaiduNetcomScienceandTechnologyCoLtd Hong Kong 10->45 75 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->75 77 Writes to foreign memory regions 10->77 79 Allocates memory in foreign processes 10->79 89 2 other signatures 10->89 16 winlogon.exe 3 10->16 injected 81 Hijacks the control flow in another process 14->81 83 Changes memory attributes in foreign processes to executable or writable 14->83 85 Contains functionality to inject threads in other processes 14->85 87 Creates a thread in another existing process (thread injection) 14->87 signatures6 process7 file8 33 C:\Windows\System32\drivers\drivers.exe, PE32+ 16->33 dropped 35 C:\Windows\System32\drivers\arphaDump64.dll, PE32+ 16->35 dropped 47 Benign windows process drops PE files 16->47 49 Hijacks the control flow in another process 16->49 51 Changes memory attributes in foreign processes to executable or writable 16->51 53 7 other signatures 16->53 20 svchost.exe 16->20 injected signatures9 process10 signatures11 63 Hijacks the control flow in another process 20->63 65 Writes to foreign memory regions 20->65 67 Modifies the context of a thread in another process (thread injection) 20->67 23 svchost.exe 1 20->23         started        27 svchost.exe 20->27         started        process12 dnsIp13 43 px.drwps.com 154.44.29.210, 49692, 49693, 80 COGENT-174US United States 23->43 69 Hijacks the control flow in another process 23->69 71 Writes to foreign memory regions 23->71 73 Modifies the context of a thread in another process (thread injection) 23->73 29 dllhost.exe 23->29         started        31 dllhost.exe 27->31         started        signatures14 process15
Gathering data
Verdict:
Malicious
Threat:
VHO:Trojan.Win32.Dllhijack
Threat name:
Win64.Trojan.Poolinject
Status:
Malicious
First seen:
2025-08-18 15:50:59 UTC
File Type:
PE+ (Exe)
Extracted files:
8
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
b13e998f2ff4a85592d2851454e9b83b939d15aeb8d48552ed9b6efc816dc767
MD5 hash:
cbe229af9f4f4255c6db54373197050d
SHA1 hash:
8f615c60f12dead96dc496b9565a60d95634c1fc
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__MemoryWorkingSet
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:pe_detect_tls_callbacks
Rule name:reverse_http
Author:CD_R0M_
Description:Identify strings with http reversed (ptth)
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:test_Malaysia
Author:rectifyq
Description:Detects file containing malaysia string
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information


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

Web download

Executable exe b13e998f2ff4a85592d2851454e9b83b939d15aeb8d48552ed9b6efc816dc767

(this sample)

  
Delivery method
Distributed via web download

Comments