MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb90f55f8558abb13b7480d61fb30341df3f068250d7e13d8bfbc6419a36a4a6. 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 4 File information Comments

SHA256 hash: cb90f55f8558abb13b7480d61fb30341df3f068250d7e13d8bfbc6419a36a4a6
SHA3-384 hash: 06a0671cb026b453256506256262fef9061c8b45446c4affcf03d6397946beea6c2aef8ca2750b46b76b6d6e1c9cafa5
SHA1 hash: 294dd97ad7d7de4b1506556ad643458f3b811c03
MD5 hash: 384abb3d0e838ede58a0d7d90045eb0d
humanhash: early-winter-enemy-happy
File name:cb90f55f8558abb13b7480d61fb30341df3f068250d7e13d8bfbc6419a36a4a6
Download: download sample
Signature AsyncRAT
File size:808'448 bytes
First seen:2026-05-08 12:43:40 UTC
Last seen:2026-06-08 08:52:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'101 x AgentTesla, 20'116 x Formbook, 12'356 x SnakeKeylogger)
ssdeep 24576:v8+v91z4XstSIDmFiVqFlWLylIvESF3hu2Qo:Rvv4XstSIKFBs5vE8VQo
TLSH T1EE050114A629CA02D8E547F40A61E3B513B44CDDA921D3078FFEFDEB787AB0A3509653
TrID 73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.6% (.EXE) Win64 Executable (generic) (6522/11/2)
4.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter adrian__luca
Tags:AsyncRAT exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
109
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-05-08 16:16:35 UTC
Tags:
auto-startup susp-lnk xworm

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Connection attempt to an infection source
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context crypt packed vbnet
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-04-08T04:21:00Z UTC
Last seen:
2026-05-08T12:46:00Z UTC
Hits:
~1000
Gathering data
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Status:
Malicious
First seen:
2026-04-08 07:52:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
26 of 36 (72.22%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
Result
Malware family:
Score:
  10/10
Tags:
family:xworm discovery execution rat trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
SmartAssembly .NET packer
Suspicious use of SetThreadContext
Checks computer location settings
Drops startup file
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Family: Xworm
Malware Config
C2 Extraction:
178.16.52.78:7777
Unpacked files
SH256 hash:
cb90f55f8558abb13b7480d61fb30341df3f068250d7e13d8bfbc6419a36a4a6
MD5 hash:
384abb3d0e838ede58a0d7d90045eb0d
SHA1 hash:
294dd97ad7d7de4b1506556ad643458f3b811c03
SH256 hash:
335138cfd29ef2ef552aa836b00de48a4796df7c2dd62abea8a5d091d80fcbf1
MD5 hash:
cb963ae4ca287abba455770686cdf19d
SHA1 hash:
18113fa9410b4a23957db81cc4c61bb59328c999
SH256 hash:
667efeb7c2f99900f4970ec06fb69dcc7436a7b423111c919eb8918c071718fc
MD5 hash:
69f8da29d11384106829e0f19d77e3ab
SHA1 hash:
9e59f02031cab75df121305fc7e982c9a8d49e90
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:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

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