MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 272b3cd90243295da28936b5fd521480c8adfa9aefb30ddca5ecbff6c454ba2d. 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: 20


Intelligence 20 IOCs YARA 16 File information Comments

SHA256 hash: 272b3cd90243295da28936b5fd521480c8adfa9aefb30ddca5ecbff6c454ba2d
SHA3-384 hash: fc9167ff3f5699954d4a995ad2a38900693f96e571c740d4bc7f4854ae03640e6f35e1595c4c0cdbabaff1051c81671c
SHA1 hash: ef475832e20860dd692d044758f323486a362484
MD5 hash: 1bfd2f3590fb00301952cc3162c72370
humanhash: tennis-moon-mexico-april
File name:Microsoft OneDrive.exe
Download: download sample
Signature Arechclient2
File size:15'154'176 bytes
First seen:2025-09-03 17:37:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 98304:h9F/h26spdQ2R7VAwWVn8UQjtUEyViciZ74Vl8IQ7d1HNgrs75hWdQXMF6Ji:jF/bspSvn8UItsViciZyOnK+vWdQy6J
Threatray 2 similar samples on MalwareBazaar
TLSH T154E6B583EADB9EA1C6062FF6C657A110C311D281B773E70E255B62272B12BBE57453C3
TrID 37.3% (.EXE) Win64 Executable (generic) (10522/11/4)
17.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
15.9% (.EXE) Win32 Executable (generic) (4504/4/1)
7.3% (.ICL) Windows Icons Library (generic) (2059/9)
7.2% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter smica83
Tags:103-249-132-235 Arechclient2 exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
72
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
approve.exe
Verdict:
Malicious activity
Analysis date:
2025-09-03 11:33:08 UTC
Tags:
auto-reg netreactor xor-url generic

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.1%
Tags:
obfuscated virus spawn
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Connection attempt
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Creating a window
Reading critical registry keys
Changing a file
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Setting a global event handler for the keyboard
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 net_reactor obfuscated obfuscated obfuscated overlay packed reconnaissance redline stealer stealer threat tiger windows xor-pe xor-url
Verdict:
Malicious
File Type:
exe x64
First seen:
2025-09-03T08:40:00Z UTC
Last seen:
2025-09-03T08:40:00Z UTC
Hits:
~100
Detections:
Trojan-PSW.Stealerc.HTTP.ServerRequest Trojan-PSW.Reline.HTTP.C&C PDM:Trojan.Win32.Generic HEUR:Trojan-PSW.MSIL.Reline.gen Backdoor.Broide.TCP.ServerRequest HEUR:Trojan-PSW.MSIL.Stealerc.gen
Result
Threat name:
Arechclient2, PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Bypasses PowerShell execution policy
Creates a thread in another existing process (thread injection)
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Powershell creates an autostart link
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Suricata IDS alerts for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Uses known network protocols on non-standard ports
Writes to foreign memory regions
Yara detected Arechclient2
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Verdict:
Malware
YARA:
7 match(es)
Tags:
.Net .Net Obfuscator .Net Reactor Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.90 Win 64 Exe x64
Threat name:
Win64.Trojan.Generic
Status:
Suspicious
First seen:
2025-09-03 11:33:09 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
24
AV detection:
12 of 38 (31.58%)
Threat level:
  5/5
Result
Malware family:
sectoprat
Score:
  10/10
Tags:
family:sectoprat discovery execution 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
Command and Scripting Interpreter: PowerShell
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Reads user/profile data of web browsers
SectopRAT
SectopRAT payload
Sectoprat family
Unpacked files
SH256 hash:
272b3cd90243295da28936b5fd521480c8adfa9aefb30ddca5ecbff6c454ba2d
MD5 hash:
1bfd2f3590fb00301952cc3162c72370
SHA1 hash:
ef475832e20860dd692d044758f323486a362484
SH256 hash:
22ab4b0c531afc3e28822b02daac4c1834ea3abd4b632472fe18fee74a5ef861
MD5 hash:
687bacd6bea03765a4dc233d4c528ee0
SHA1 hash:
a4ea5fbc23fad5ae579580e1ebfc8bc8c4f4c549
Detections:
SUSP_XORed_URL_In_EXE MALWARE_Win_Arechclient2
Malware family:
SectopRAT
Verdict:
Malicious
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:BLOWFISH_Constants
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:botnet_plaintext_c2
Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
Rule name:CP_AllMal_Detector
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Lumma_Stealer_Detection
Author:ashizZz
Description:Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Author:malware-lu
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:RC6_Constants
Author:chort (@chort0)
Description:Look for RC6 magic constants in binary
Reference:https://twitter.com/mikko/status/417620511397400576
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:SHA512_Constants
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:SUSP_XORed_MSDOS_Stub_Message
Author:Florian Roth
Description:Detects suspicious XORed MSDOS stub message
Reference:https://yara.readthedocs.io/en/latest/writingrules.html#xor-strings
Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
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.

Comments