MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91d57a66876b61cfb6a4cebf5aeb4dca024dbcaa70502e396348ed77c23b8684. 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: 16


Intelligence 16 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91d57a66876b61cfb6a4cebf5aeb4dca024dbcaa70502e396348ed77c23b8684
SHA3-384 hash: 3e78a57ef07da7d5d3a925c1ef9af22720799cae6c5c04d14cae2f7fa36800ee142b15b1f31b95c0b07fd8fdaac5f6f1
SHA1 hash: 25aaa582be634eb2a34095e604a522ca8059ef87
MD5 hash: dcf31e889ae6377e7c84d595f021fcba
humanhash: bravo-golf-jupiter-florida
File name:91d57a66876b61cfb6a4cebf5aeb4dca024dbcaa70502e396348ed77c23b8684
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:749'568 bytes
First seen:2026-06-08 10:01:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'067 x AgentTesla, 20'020 x Formbook, 12'352 x SnakeKeylogger)
ssdeep 12288:qjvbQqP7ZtEm0deRTTDmomzx/9dstgZIKBHfsQQwdmkYgdfgNh9AZdZA2Y0odqjI:qb7zEo976xrSgZhB/sLks/9AZTM
TLSH T190F412689E59D443E8DA07781B61F2752339EECCE600C3571FE97EAF7CBAA015908342
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
dhash icon 71d0b26d4da9d22c (5 x Formbook, 2 x SnakeKeylogger, 2 x MassLogger)
Reporter adrian__luca
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
153
Origin country :
HU HU
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/4eaafc63-46c5-4f8d-ab0f-301a437ae9e9/
Malware family:
n/a
ID:
1
File name:
_91d57a66876b61cfb6a4cebf5aeb4dca024dbcaa70502e396348ed77c23b8684.exe
Verdict:
Malicious activity
Analysis date:
2026-06-08 10:35:06 UTC
Tags:
auto-reg auto-startup xworm
Link:
https://app.any.run/tasks/fb18235d-3fbc-42b7-9322-2b5adba6ee76

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/70028/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Siggen5.33534.24733.8206.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a26940aae2f98c00a68d05d
Tags:
micro spawn remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a service
Сreating synchronization primitives
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
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed vbnet
Link:
https://www.filescan.io/uploads/6a2694631f652d68656df0ed/reports/0403ccb6-6b33-42f6-9162-dd31e5d0dd83/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/91d57a66876b61cfb6a4cebf5aeb4dca024dbcaa70502e396348ed77c23b8684
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-05-20T00:47:00Z UTC
Last seen:
2026-06-10T05:55:00Z UTC
Hits:
~1000
Detections:
Backdoor.Agent.TCP.C&C Trojan.MSIL.Agent.sb Trojan-Dropper.Win32.Injector.sb HEUR:Backdoor.MSIL.XWorm.gen Backdoor.MSIL.XWorm.c Backdoor.MSIL.XWorm.a PDM:Trojan.Win32.Generic Trojan.MSIL.Inject.sb Trojan.MSIL.Dnoper.sb Trojan.MSIL.Crypt.sb Backdoor.Win32.Androm.sb Backdoor.MSIL.XWorm.b
Link:
https://opentip.kaspersky.com/91d57a66876b61cfb6a4cebf5aeb4dca024dbcaa70502e396348ed77c23b8684/results?tab=lookup
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0500ac91-b7c5-40ea-a95b-adfc3242dabe
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/91d57a66876b61cfb6a4cebf5aeb4dca024dbcaa70502e396348ed77c23b8684
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/91d57a66876b61cfb6a4cebf5aeb4dca024dbcaa70502e396348ed77c23b8684/
Verdict:
Malicious
Threat:
Family.XWORM
Link:
https://tip.neiki.dev/file/91d57a66876b61cfb6a4cebf5aeb4dca024dbcaa70502e396348ed77c23b8684
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2026-05-20 03:44:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
18 of 24 (75.00%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
xworm
Create hunting rule
Similar samples:
error
AsyncRAT
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm discovery execution persistence rat trojan
Link:
https://tria.ge/reports/260608-l46q5ab13p/
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
Adds Run key to start application
Drops startup file
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Family: Xworm
Malware Config
C2 Extraction:
31.56.209.14:8200
Unpacked files
SH256 hash:
91d57a66876b61cfb6a4cebf5aeb4dca024dbcaa70502e396348ed77c23b8684
MD5 hash:
dcf31e889ae6377e7c84d595f021fcba
SHA1 hash:
25aaa582be634eb2a34095e604a522ca8059ef87
Link:
https://www.unpac.me/results/d4e01f7a-efa3-4c2a-9d60-98bb282e1526/
SH256 hash:
d2b150f561552ac91345e928cbce7a435a13ebdbb39b1b49abf721d87cdce5c2
MD5 hash:
ea2b9ef2ec05b4f3c33382ca075abecf
SHA1 hash:
6872be665e006f0b332c5002205957fb48dfa05b
Detections:
win_xworm_a0
Create hunting rule
win_xworm_w0
Create hunting rule
XWorm
Create hunting rule
Link:
https://www.unpac.me/results/d4e01f7a-efa3-4c2a-9d60-98bb282e1526/
Parent samples :
e9a6e4db35c701b2b201b340328cbddbd7e8f5925b3a9ed2d41cb37f739b62f9
51935015f140db78911cab15b0d4aad0f64bbfe742ed3ca5e037cad03a1978b7
09b357949e60b7cfd0a455ae4bfeb95bbc287ba8c55aaa7813e08327db251499
e2572b40040651edb1efdae9786e4fc76a406f89248502d26b59c6668cd17076
91d57a66876b61cfb6a4cebf5aeb4dca024dbcaa70502e396348ed77c23b8684
SH256 hash:
7e5e42651838afcb21918d7c4cec7d2a3352a51bd32f572a8a889e47cedb7c89
MD5 hash:
bc5c24037c01c45d357e78aae1457f88
SHA1 hash:
8b6115e53004c4330550467a4d67c509dc98452b
Link:
https://www.unpac.me/results/d4e01f7a-efa3-4c2a-9d60-98bb282e1526/
SH256 hash:
a3bd4b9075b6848b375ab0862be4e187e43f2b8d1c72685bc8df6c8ea58f8b03
MD5 hash:
661170663a8f8aa292c3217ff1c5e6e8
SHA1 hash:
a36a26a2a13e57275a54eb632ed5e41145f37164
Link:
https://www.unpac.me/results/d4e01f7a-efa3-4c2a-9d60-98bb282e1526/
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/91d57a66876b61cfb6a4cebf5aeb4dca024dbcaa70502e396348ed77c23b8684

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
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/70028/

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