MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac44c5aec6e571b76b644d5f9cbd6f5f8a84f5d271da4b1c954507ad7c76b467. 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


RustyStealer


Vendor detections: 11


Intelligence 11 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ac44c5aec6e571b76b644d5f9cbd6f5f8a84f5d271da4b1c954507ad7c76b467
SHA3-384 hash: 6aeace4af9f62c44051dc901878ad519eec8de352011bfe20a42bf0d7d510256d8a80d8019c68e7682c46c758fa8af5e
SHA1 hash: a114a410d4f408c57515af3111086bb306656b04
MD5 hash: da139bd38c70cdfa9bfa0be84b98a445
humanhash: iowa-aspen-stream-oklahoma
File name:内容(1).exe
Download: download sample
Signature RustyStealer
Create hunting rule
File size:21'832'704 bytes
First seen:2026-07-07 12:16:33 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash bcc92f112ebb27197bbf1336283610ea (1 x RustyStealer)
ssdeep 24576:Af/fmYie0yB3VUe89ki7duiohTwtcIgw7eDK+n9q6Da8J51S7N6SQe8GPhoxouSD:AHfse0sVUPSZl
TLSH T1A627AEB876047DE6F67F577BDA96ACD803B62E229A8BA4CC406477C30573375EE02805
TrID 37.0% (.EXE) Win64 Executable (generic) (6522/11/2)
28.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
11.5% (.EXE) OS/2 Executable (generic) (2029/13)
11.3% (.EXE) Generic Win/DOS Executable (2002/3)
11.3% (.EXE) DOS Executable (generic) (2000/1)
Magika pebin
dhash icon f8d0dcf8c8c4cccc (1 x RustyStealer)
Reporter Ling
Tags:exe RustyStealer SilverFox ValleyRAT


Avatar
CNGaoLing
SilverFox
IOC (IP 18.167.175.88:998)

Intelligence

File Origin
# of uploads :
1
# of downloads :
162
Origin country :
RO RO
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
https://zjk.trans.dingtalk.com/yundisk0/iAEHAqRmaWxlA6h5dW5kaXNrMATOITZl1wXNEJAGzZfRB85qTJ0VCM4ABUUU.file?Expires=1783412810&OSSAccessKeyId=LTAIjmWpzHta71rc&Signature=HlEOdQy%2Boh%2BJzTgNRxKx5K1BN5o%3D&response-content-disposition=attachment%3Bfilename%3D%25E5%2586%2585%25E5%25AE%25B9.exe%3Bfilename%2A%3Dutf-8%27%27%25E5%2586%2585%25E5%25AE%25B9.exe
Verdict:
Malicious activity
Analysis date:
2026-07-07 07:27:11 UTC
Tags:
loader
Link:
https://app.any.run/tasks/82db4a91-d0f7-4e38-bacf-40088ecf25ae

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/73309/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a4cec31762b0b26f3d13b37
Tags:
shellcode vmdetect dropper virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Launching a service
Creating a file
Moving a recently created file
Creating a process from a recently created file
Launching a process
Creating a service
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Possible injection to a system process
Enabling autorun for a service
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug anti-vm crypto installer-heuristic reconnaissance rust
Link:
https://www.filescan.io/uploads/6a4cee3da761171ecf83e9ec/reports/79f40def-b751-451c-91cd-a21c2c99c8f1/overview
Verdict:
Malicious
Labled as:
Win64/GenKryptik.HSOR trojan
Link:
https://www.hybrid-analysis.com/sample/ac44c5aec6e571b76b644d5f9cbd6f5f8a84f5d271da4b1c954507ad7c76b467
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-07-07T09:45:00Z UTC
Last seen:
2026-07-08T11:01:00Z UTC
Hits:
~100
Detections:
Trojan.Win64.Agent.smgqij BSS:Trojan.Win32.Generic
Link:
https://opentip.kaspersky.com/ac44c5aec6e571b76b644d5f9cbd6f5f8a84f5d271da4b1c954507ad7c76b467/results?tab=lookup
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ac44c5aec6e571b76b644d5f9cbd6f5f8a84f5d271da4b1c954507ad7c76b467
Gathering data
Gathering data
Verdict:
Clean
Link:
https://tip.neiki.dev/file/ac44c5aec6e571b76b644d5f9cbd6f5f8a84f5d271da4b1c954507ad7c76b467
Threat name:
Win64.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-07-07 12:08:20 UTC
File Type:
PE+ (Exe)
Extracted files:
81
AV detection:
10 of 38 (26.32%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vrcmllwg4vy3o23ejvpzzplpl6fij5osohnewheviud227dwwrtq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
adware discovery persistence spyware
Link:
https://tria.ge/reports/260707-pf446sex9m/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Modifies Internet Explorer settings
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Enumerates connected drives
Executes dropped EXE
Loads dropped DLL
Boot or Logon Autostart Execution: Active Setup
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ac44c5aec6e5/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/ac44c5aec6e571b76b644d5f9cbd6f5f8a84f5d271da4b1c954507ad7c76b467

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
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:ProgramLanguage_Rust
Create hunting rule
Author:albertzsigovits
Description:Application written in Rust programming language
Rule name:Rustyloader_mem_loose
Create hunting rule
Author:James_inthe_box
Description:Corroded buerloader
Reference:https://app.any.run/tasks/83064edd-c7eb-4558-85e8-621db72b2a24
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:https://cyfare.net/
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

Web download

RustyStealer

Executable exe ac44c5aec6e571b76b644d5f9cbd6f5f8a84f5d271da4b1c954507ad7c76b467

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/73309/

Comments