MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 57538a8b1bb306925d3549bce1ba5b09e1383c2dfd2efef38f15a93d5583d362. 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


ValleyRAT


Vendor detections: 17


Intelligence 17 IOCs 1 YARA 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 57538a8b1bb306925d3549bce1ba5b09e1383c2dfd2efef38f15a93d5583d362
SHA3-384 hash: 64e495b90c99f8177b64ea688f0a1c1c160b69191dd50ad24e2b03f09024ba4fdba88e1103e02e2ceb8795ab537077f4
SHA1 hash: c945a54065f0cc1279c4e219fc2c1cbc6c6205f9
MD5 hash: d935c37b954c61c1126b19c7ca5569d3
humanhash: echo-mountain-black-jersey
File name:57538a8b1bb306925d3549bce1ba5b09e1383c2dfd2ef.exe
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:2'280'960 bytes
First seen:2026-04-14 10:51:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 290b83c70a18f5748e8dc8bec5f2985d (1 x ValleyRAT)
ssdeep 49152:g2u2P04oVRsFTF9LdoDMKUWmh2o/umt89j4DNXUtjH:gx0SVRsF59LdoDMKxRo/umtGj4DNg
TLSH T1D8B58D21368040B2C46312339EDEF2F9A3BDAA34CF3945C7D794BADDB9A25C3452456B
TrID 29.5% (.EXE) Win64 Executable (generic) (6522/11/2)
22.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
20.3% (.EXE) Win32 Executable (generic) (4504/4/1)
9.1% (.EXE) OS/2 Executable (generic) (2029/13)
9.0% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
dhash icon b2cae6f6f298ac92 (1 x ValleyRAT)
Reporter abuse_ch
Tags:exe RAT ValleyRAT


Avatar
abuse_ch
ValleyRAT C2:
154.211.104.218:9999

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
154.211.104.218:9999 https://threatfox.abuse.ch/ioc/1786846/

Intelligence

File Origin
# of uploads :
1
# of downloads :
160
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
57538a8b1bb306925d3549bce1ba5b09e1383c2dfd2efef38f15a93d5583d362.exe
Verdict:
Malicious activity
Analysis date:
2026-04-14 10:35:11 UTC
Tags:
auto-startup auto-reg donutloader loader valleyrat rat silverfox winos
Link:
https://app.any.run/tasks/6ce23013-0c96-4b7e-b0ab-2233ba635859

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
WinosStager
Create hunting rule
Link:
https://www.capesandbox.com/analysis/61536/
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file
Creating a process from a recently created file
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a window
Sending a custom TCP request
Connection attempt
Enabling autorun with the shell\open\command registry branches
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
Sending a TCP request to an infection source
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug cmd fingerprint hacktool keylogger lolbin microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/69de1c38799d5bf325fd716d/reports/7c3160db-8aaa-4114-aa21-bb1040cf19af/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/57538a8b1bb306925d3549bce1ba5b09e1383c2dfd2efef38f15a93d5583d362
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-04-14T07:14:00Z UTC
Last seen:
2026-04-15T23:51:00Z UTC
Hits:
~10
Detections:
Trojan-Dropper.Win32.Dapato.sb Backdoor.Win32.Xkcp.a Trojan-Spy.Win32.KeyLogger.sba PDM:Trojan.Win32.Generic Backdoor.Agent.TCP.C&C Trojan.Win32.Shellcode.sb Trojan.Win32.Agent.sb Trojan-Spy.Win32.Stealer.sb HEUR:Trojan.Win32.Shellcode.gen
Link:
https://opentip.kaspersky.com/57538a8b1bb306925d3549bce1ba5b09e1383c2dfd2efef38f15a93d5583d362/results?tab=lookup
Malware family:
ValleyRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7dc4d348-0da8-41fa-a378-a77bbc8086da
Result
Threat name:
DonutLoader, ValleyRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1897971
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Contains functionality to inject code into remote processes
Contains functionality to inject threads in other processes
Found evasive API chain (may stop execution after checking mutex)
Found malware configuration
Found stalling execution ending in API Sleep call
Malicious sample detected (through community Yara rule)
Self deletion via cmd or bat file
Sigma detected: Potentially Suspicious Malware Callback Communication
Sigma detected: Suspicious Ping/Del Command Combination
Suricata IDS alerts for network traffic
Tries to delay execution (extensive OutputDebugStringW loop)
Unusual module load detection (module proxying)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected DonutLoader
Yara detected ValleyRAT
Behaviour
Behavior Graph:
Download SVG
Score:
41%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/57538a8b1bb306925d3549bce1ba5b09e1383c2dfd2efef38f15a93d5583d362
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/57538a8b1bb306925d3549bce1ba5b09e1383c2dfd2efef38f15a93d5583d362/
Verdict:
Malicious
Threat:
Family.DONUTLOADER
Link:
https://tip.neiki.dev/file/57538a8b1bb306925d3549bce1ba5b09e1383c2dfd2efef38f15a93d5583d362
Threat name:
Win32.Trojan.Qwexlafiba
Create hunting rule
Status:
Malicious
First seen:
2026-04-14 10:35:17 UTC
File Type:
PE (Exe)
Extracted files:
18
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=k5jyvcy3wmdjexjvjg6odos3bhqtqpbn7uxp544pcwut2vmd2nra._file
Verdict:
malicious
Label(s):
valleyrat
Create hunting rule
Similar samples:
error
ValleyRAT
Result
Malware family:
valleyrat_s2
Create hunting rule
Score:
  10/10
Tags:
family:donutloader family:valleyrat_s2 backdoor discovery loader persistence
Link:
https://tria.ge/reports/260414-mx5qxscs3x/
Behaviour
Modifies registry class
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
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
Adds Run key to start application
Enumerates connected drives
Checks computer location settings
Drops startup file
Executes dropped EXE
Detects DonutLoader
Family: DonutLoader
Family: ValleyRat
Malware Config
C2 Extraction:
154.211.104.218:9999
154.211.104.218:7777
127.0.0.1:80
Unpacked files
SH256 hash:
57538a8b1bb306925d3549bce1ba5b09e1383c2dfd2efef38f15a93d5583d362
MD5 hash:
d935c37b954c61c1126b19c7ca5569d3
SHA1 hash:
c945a54065f0cc1279c4e219fc2c1cbc6c6205f9
Link:
https://www.unpac.me/results/959577c8-cbf6-4aa7-8a0e-f773e9111dc8/
SH256 hash:
173b81312fce6f37e667fe073474f7cf236253706d6a699b423d1bec7c2b71d7
MD5 hash:
7f89b36c7efed4e0d2da0bb349d24467
SHA1 hash:
b64c10937c4e331a2623f5b65ebca782e7e4086d
Link:
https://www.unpac.me/results/959577c8-cbf6-4aa7-8a0e-f773e9111dc8/
Malware family:
ValleyRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/57538a8b1bb3/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/57538a8b1bb306925d3549bce1ba5b09e1383c2dfd2efef38f15a93d5583d362

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:APT_Sandworm_ArguePatch_Apr_2022_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect ArguePatch loader used by Sandworm group for load CaddyWiper
Reference:https://www.welivesecurity.com/2022/04/12/industroyer2-industroyer-reloaded/
Rule name:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:GenericGh0st
Create hunting rule
Author:Still
Rule name:Gh0stKCP
Create hunting rule
Author:Netresec
Description:Detects HP-Socket ARQ and KCP implementations, which are used in Gh0stKCP. Forked from @stvemillertime's KCP catchall rule.
Reference:https://netresec.com/?b=259a5af
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_peb_parsing
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb
Rule name:ThreadControl__Context
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:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
Rule name:Windows_Trojan_Donutloader_f40e3759
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Winos_464b8a2e
Create hunting rule
Author:Elastic Security
Rule name:WinosStager
Create hunting rule
Author:YungBinary
Description:https://www.esentire.com/blog/winos4-0-online-module-staging-component-used-in-cleversoar-campaign

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/61536/

Comments