MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b50022174e65d469ecaac631a79c937b2423d5979b04af7d5ca969afe61ac9a2. 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
Arechclient2
Vendor detections: 15
| SHA256 hash: | b50022174e65d469ecaac631a79c937b2423d5979b04af7d5ca969afe61ac9a2 |
|---|---|
| SHA3-384 hash: | 8b369bef196981ce8094be4a190ea3ab992abe34610accb6df550c4bfde78afff09bc4994b4ad50d0d3014567ce887d3 |
| SHA1 hash: | 4bfd4cee8ef248d81ccd099a699ad91fb040fc50 |
| MD5 hash: | a97b057c968ce4273d51bc0b63d95bef |
| humanhash: | black-illinois-arizona-one |
| File name: | y8S8zn0.exe |
| Download: | download sample |
| Signature | Arechclient2 |
| File size: | 1'710'592 bytes |
| First seen: | 2025-07-20 16:00:02 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 21d17fd69b8ceefa563c12c0db9d333c (1 x Arechclient2) |
| ssdeep | 49152:PSz1CRhFRwZVJo5kwTZeNzn7epQcDAFnOUiB7Ex:/oVznSpQcDo3x |
| TLSH | T112851214F6A694F9E1AFC038CD92450EEFA3BC545B129BDB33901A5A1E736D04E3E721 |
| TrID | 48.7% (.EXE) Win64 Executable (generic) (10522/11/4) 23.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 9.3% (.EXE) OS/2 Executable (generic) (2029/13) 9.2% (.EXE) Generic Win/DOS Executable (2002/3) 9.2% (.EXE) DOS Executable Generic (2000/1) |
| Magika | pebin |
| Reporter |  abuse_ch |
| Tags: | Arechclient2 exe |
Intelligence
File Origin
# of uploads :
1
# of downloads :
28
Origin country :
SEVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b50022174e65d469ecaac631a79c937b2423d5979b04af7d5ca969afe61ac9a2.bin.exe
Verdict:
Malicious activity
Analysis date:
2025-07-20 15:51:03 UTC
Tags:
stealer xor-url arechclient2 rat backdoor generic
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Arechclient2
Verdict:
Malicious
Score:
96.5%
Tags:
keylog virus word
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file
Searching for synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Сreating synchronization primitives
Connection attempt
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Creating a window
Reading critical registry keys
Creating a file in the %temp% directory
Sending an HTTP GET request
Stealing user critical data
Setting a global event handler for the keyboard
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
microsoft_visual_cc obfuscated packed packed packer_detected
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Verdict:
Suspicious
Result
Threat name:
Arechclient2
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Signature
Found API chain indicative of debugger detection
Found stalling execution ending in API Sleep call
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sets debug register (to hijack the execution of another thread)
Yara detected Arechclient2
Behaviour
Behavior Graph:
Score:
99%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) Win 64 Exe x64
Verdict:
Malicious
Threat:
PDM:Trojan.Win32
Threat name:
Win64.Trojan.Generic
Status:
Suspicious
First seen:
2025-07-20 15:51:04 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
14 of 23 (60.87%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
sectoprat
Score:
10/10
Tags:
family:donutloader family:sectoprat discovery loader persistence rat spyware stealer trojan
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in Windows directory
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Executes dropped EXE
Reads user/profile data of web browsers
Detects DonutLoader
DonutLoader
Donutloader family
SectopRAT
SectopRAT payload
Sectoprat family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
b50022174e65d469ecaac631a79c937b2423d5979b04af7d5ca969afe61ac9a2
MD5 hash:
a97b057c968ce4273d51bc0b63d95bef
SHA1 hash:
4bfd4cee8ef248d81ccd099a699ad91fb040fc50
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | FreddyBearDropper |
|---|---|
| Author: | Dwarozh Hoshiar |
| Description: | Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip. |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | pe_detect_tls_callbacks |
|---|
| Rule name: | SEH__vectored |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | SHA512_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA384/SHA512 constants |
| Rule name: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| Author: | XiAnzheng |
| Description: | Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP) |
| 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
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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (GUARD_CF) | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| WIN32_PROCESS_API | Can Create Process and Threads | KERNEL32.dll::CloseHandle |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetStartupInfoA KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetCommandLineA KERNEL32.dll::GetCommandLineW |
| WIN_BASE_EXEC_API | Can Execute other programs | KERNEL32.dll::WriteConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleOutputCP KERNEL32.dll::GetConsoleMode |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CreateFileW |
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