MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ce381358bde90843640ac7cc0d59f4c4066adf1f26db2e6ba4130e9f72b6af8. 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


AsyncRAT


Vendor detections: 14


Intelligence 14 IOCs YARA 21 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4ce381358bde90843640ac7cc0d59f4c4066adf1f26db2e6ba4130e9f72b6af8
SHA3-384 hash: 7b2629cf3eb255399b58824bf55b76aeee57f4c6c1b3d6d8118c35d99409ede233d6e68da1891b74221cfc62a07e07ef
SHA1 hash: 67aa1ef5fca4e3e720feb6080d0f1ac20b503b26
MD5 hash: 1f2be558a74cb83afab86147e70d87d6
humanhash: harry-hydrogen-pluto-juliet
File name:ksUu.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:1'990'645 bytes
First seen:2025-02-08 20:38:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 483f0c4259a9148c34961abbda6146c1 (17 x ValleyRAT, 8 x AsyncRAT, 7 x QuasarRAT)
ssdeep 49152:33X/qQfkYzgrW/r1DNKHOkjSKwgRVRm9SMHGVa52a:nTfccDMRSKTVRmQi3
Threatray 13 similar samples on MalwareBazaar
TLSH T12E952312B7C35836E1911978DC5BC4846C2B7EAC19E564633DF8FB4F19782C25C3EAA2
TrID 70.9% (.EXE) Inno Setup installer (107240/4/30)
9.3% (.EXE) Win32 Executable Delphi generic (14182/79/4)
6.9% (.EXE) Win64 Executable (generic) (10522/11/4)
4.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
2.9% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
File icon (PE):PE icon
dhash icon 00b28eabababa600 (5 x RemcosRAT, 3 x AsyncRAT, 2 x RedLineStealer)
Reporter aachum
Tags:AsyncRAT exe


Avatar
iamaachum
AsyncRAT C2: 27.124.4.150:51311

Intelligence

File Origin
# of uploads :
1
# of downloads :
507
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
lets-win.exe
Verdict:
Malicious activity
Analysis date:
2025-02-08 20:37:41 UTC
Tags:
websocket
Link:
https://app.any.run/tasks/96f32b4f-3f91-48a5-97c2-d5323f10c3be

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.PUA.Systweak.Gen4.14801.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67a7c0bfd010e522d1b81cf7
Tags:
dropper emotet virus sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Restart of the analyzed sample
Creating a process with a hidden window
Searching for the window
Searching for synchronization primitives
Creating a file
Moving a recently created file
Creating a file in the %AppData% subdirectories
Moving a file to the %AppData% subdirectory
Launching a process
Using the Windows Management Instrumentation requests
Connection attempt
Setting a global event handler for the keyboard
Enabling autorun by creating a file
Verdict:
Suspicious
Labled as:
Trojan/Generic
Link:
https://www.hybrid-analysis.com/sample/4ce381358bde90843640ac7cc0d59f4c4066adf1f26db2e6ba4130e9f72b6af8
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/b998196c-ec2a-49ab-aac2-fe6bc77fc9f1
Result
Threat name:
n/a
Detection:
malicious
Classification:
spyw.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1610250
Signature
.NET source code contains potential unpacker
Contains functionality to log keystrokes (.Net Source)
Loading BitLocker PowerShell Module
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)
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
Uses Register-ScheduledTask to add task schedules
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1610250 Sample: ksUu.exe Startdate: 08/02/2025 Architecture: WINDOWS Score: 96 83 Malicious sample detected (through community Yara rule) 2->83 85 Multi AV Scanner detection for dropped file 2->85 87 Multi AV Scanner detection for submitted file 2->87 89 4 other signatures 2->89 12 ksUu.exe 2 2->12         started        15 powershell.exe 2->15         started        18 powershell.exe 2->18         started        20 8 other processes 2->20 process3 file4 79 C:\Users\user\AppData\Local\Temp\...\ksUu.tmp, PE32 12->79 dropped 22 ksUu.tmp 3 5 12->22         started        103 Loading BitLocker PowerShell Module 15->103 25 conhost.exe 15->25         started        27 conhost.exe 18->27         started        29 conhost.exe 20->29         started        31 conhost.exe 20->31         started        33 conhost.exe 20->33         started        35 2 other processes 20->35 signatures5 process6 file7 67 C:\Users\user\AppData\Local\...\_shfoldr.dll, PE32 22->67 dropped 69 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 22->69 dropped 37 ksUu.exe 2 22->37         started        process8 file9 65 C:\Users\user\AppData\Local\Temp\...\ksUu.tmp, PE32 37->65 dropped 40 ksUu.tmp 22 11 37->40         started        process10 file11 71 C:\Users\user\...\msedgewebview2.exe (copy), PE32+ 40->71 dropped 73 C:\Users\user\...\msedge_elf.dll (copy), PE32+ 40->73 dropped 75 C:\Users\user\AppData\...\is-JHPJC.tmp, PE32+ 40->75 dropped 77 5 other files (none is malicious) 40->77 dropped 43 msedgewebview2.exe 40->43         started        process12 signatures13 97 Suspicious powershell command line found 43->97 46 msedgewebview2.exe 43->46         started        49 powershell.exe 37 43->49         started        process14 signatures15 99 Suspicious powershell command line found 46->99 51 regsvr32.exe 5 46->51         started        55 powershell.exe 46->55         started        57 tasklist.exe 1 46->57         started        101 Loading BitLocker PowerShell Module 49->101 59 conhost.exe 49->59         started        process16 dnsIp17 81 27.124.4.150, 49736, 49737, 49738 BCPL-SGBGPNETGlobalASNSG Singapore 51->81 91 System process connects to network (likely due to code injection or exploit) 51->91 93 Sets debug register (to hijack the execution of another thread) 51->93 95 Loading BitLocker PowerShell Module 55->95 61 conhost.exe 55->61         started        63 conhost.exe 57->63         started        signatures18 process19
Score:
55%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/4ce381358bde90843640ac7cc0d59f4c4066adf1f26db2e6ba4130e9f72b6af8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4ce381358bde90843640ac7cc0d59f4c4066adf1f26db2e6ba4130e9f72b6af8/
Threat name:
Win32.Trojan.CrypterX
Create hunting rule
Status:
Malicious
First seen:
2025-02-08 20:37:08 UTC
File Type:
PE (Exe)
Extracted files:
78
AV detection:
7 of 38 (18.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jtrycnml32iiinsavr6mbvm7jragnlpr6jw3fzv2ieyot5zlnl4a._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
43a656bcd060e8a36502ca2deb878d56a99078f13d3e57dcd73a87128588c9e9
AsyncRAT
616bbced150df4c538374a032a176e88165f5e95f3fffaeae28ffa68cda552a1
AsyncRAT
ab45aef26f5e3abf89c5881c2bda82b8499038ee90b100d6733dffc11e779118
AsyncRAT
c6d8cde7cd9d0731356ae426c5b6d3d7a8ab05143fa78d257af9b9d037be7b49
AsyncRAT
e8cc5f2db7d2722143678a6b2f2d9c9ab6fa984c7d9bbf1d2ec06e7c19c7e1b2
AsyncRAT
error
AsyncRAT
f9fc23fe47d3c918c7bc24cbe14e56d9b0024e31660f2a280f3991291b3e5882
AsyncRAT
+ 3 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default discovery execution rat
Link:
https://tria.ge/reports/250208-zffrpasmd1/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Enumerates processes with tasklist
Checks installed software on the system
Command and Scripting Interpreter: PowerShell
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Downloads MZ/PE file
Async RAT payload
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
27.124.4.150:51311
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/28f3288d-615c-4448-b1cd-d029bb201ba6
Unpacked files
SH256 hash:
4ce381358bde90843640ac7cc0d59f4c4066adf1f26db2e6ba4130e9f72b6af8
MD5 hash:
1f2be558a74cb83afab86147e70d87d6
SHA1 hash:
67aa1ef5fca4e3e720feb6080d0f1ac20b503b26
Link:
https://www.unpac.me/results/dc61193a-49ec-43a8-8c87-14d22adb5c93/
SH256 hash:
a4c86fc4836ac728d7bd96e7915090fd59521a9e74f1d06ef8e5a47c8695fd81
MD5 hash:
4ff75f505fddcc6a9ae62216446205d9
SHA1 hash:
efe32d504ce72f32e92dcf01aa2752b04d81a342
Link:
https://www.unpac.me/results/dc61193a-49ec-43a8-8c87-14d22adb5c93/
SH256 hash:
26a5be637ee680b1ec11d1adf2fd0972cc52078cbd200d9273f8bb826707c83b
MD5 hash:
8fdc58c7d4c59472615682d6dea9d190
SHA1 hash:
8e131fe09fd238493719b4fd92e6c833bf3596c1
Link:
https://www.unpac.me/results/dc61193a-49ec-43a8-8c87-14d22adb5c93/
SH256 hash:
44b8e6a310564338968158a1ed88c8535dece20acb06c5e22d87953c261dfed0
MD5 hash:
9c8886759e736d3f27674e0fff63d40a
SHA1 hash:
ceff6a7b106c3262d9e8496d2ab319821b100541
Link:
https://www.unpac.me/results/dc61193a-49ec-43a8-8c87-14d22adb5c93/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4ce381358bde/report/overview.html
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/4ce381358bde90843640ac7cc0d59f4c4066adf1f26db2e6ba4130e9f72b6af8

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:AcRat
Create hunting rule
Author:Nikos 'n0t' Totosis
Description:AcRat Payload (based on AsyncRat)
Rule name:Borland
Create hunting rule
Author:malware-lu
Rule name:dcrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:dcrat_kingrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:dcrat_rkp
Create hunting rule
Author:jeFF0Falltrades
Description:Detects DCRat payloads
Rule name:INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
Create hunting rule
Author:ditekSHen
Description:Detects executables attemping to enumerate video devices using WMI
Rule name:MAL_AsnycRAT
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_AsyncRAT_Config_Decryption
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:venomrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:Windows_Generic_Threat_ce98c4bc
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Donutloader_f40e3759
Create hunting rule
Author:Elastic Security

File information

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

Web download

AsyncRAT

Executable exe 683f0e829eeb0860f19ac325bb399d4bb4837d9c011ac018fee6118490a1666c

AsyncRAT

Executable exe 4ce381358bde90843640ac7cc0d59f4c4066adf1f26db2e6ba4130e9f72b6af8

(this sample)

  
Link
https://tria.ge/250208-zbkvvaslay/behavioral3
  
Dropped by
SHA256 683f0e829eeb0860f19ac325bb399d4bb4837d9c011ac018fee6118490a1666c
  
Delivery method
Other
  
Dropped by
MD5 4ba81cd6a16ffd3bf5e0e7338df60a5f

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
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
SECURITY_BASE_APIUses Security Base APIadvapi32.dll::AdjustTokenPrivileges
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CreateProcessW
advapi32.dll::OpenProcessToken
kernel32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryExW
kernel32.dll::LoadLibraryW
kernel32.dll::GetSystemInfo
kernel32.dll::GetStartupInfoA
kernel32.dll::GetDiskFreeSpaceW
kernel32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateDirectoryW
kernel32.dll::CreateFileW
kernel32.dll::DeleteFileW
kernel32.dll::GetWindowsDirectoryW
kernel32.dll::GetFileAttributesW
kernel32.dll::FindFirstFileW
WIN_BASE_USER_APIRetrieves Account Informationadvapi32.dll::LookupPrivilegeValueW
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExW
advapi32.dll::RegQueryValueExW
WIN_USER_APIPerforms GUI Actionsuser32.dll::PeekMessageW
user32.dll::CreateWindowExW

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