MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8121bf71677fa544376da9bf9026840d183dcb817bf32d480f3d1c593f287685. 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: 12


Intelligence 12 IOCs 1 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8121bf71677fa544376da9bf9026840d183dcb817bf32d480f3d1c593f287685
SHA3-384 hash: 2a254943fb8530214662b5e6565dcacda24be7b338474897d87bf35ca57934213b2774b1f6af155a204f6ff3910c9fde
SHA1 hash: 3bc5980b922d1398ae98f4b2ae917441d6a030e2
MD5 hash: 33ede210bdac80b3bd8dc5433ab5dc65
humanhash: nebraska-kitten-mango-moon
File name:33EDE210BDAC80B3BD8DC5433AB5DC65.exe
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:932'352 bytes
First seen:2025-05-04 14:30:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash a7f4406de55deceb0233b9b0e443bda2 (1 x ValleyRAT)
ssdeep 24576:oWoj7LlHXEZzdGRplI/YGq59pYMOZW1E4+PsHw:oWoj7LWZz13A9w
TLSH T1051512C4DE341277D17745B0681AA8DCECB408F02A79D87B43F247D93AB26B9E5B6243
TrID 33.5% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
21.3% (.EXE) Win64 Executable (generic) (10522/11/4)
13.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter abuse_ch
Tags:exe RAT ValleyRAT


Avatar
abuse_ch
ValleyRAT C2:
45.204.197.88:1991

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
45.204.197.88:1991 https://threatfox.abuse.ch/ioc/1515724/

Intelligence

File Origin
# of uploads :
1
# of downloads :
462
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
33EDE210BDAC80B3BD8DC5433AB5DC65.exe
Verdict:
No threats detected
Analysis date:
2025-05-04 14:33:54 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/549d965b-513d-46bc-a9c9-95cb0ebb535f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.19619.8452.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68177c9d432e243ac3e3edff
Tags:
shellcode vmdetect virus remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a service
Launching a service
Restart of the analyzed sample
Searching for synchronization primitives
Searching for the window
Connection attempt
Sending an HTTP GET request
Adding an access-denied ACE
Creating a file in the Windows subdirectories
Creating a file
Creating a process from a recently created file
Сreating synchronization primitives
Sending a custom TCP request
Creating a window
Enabling autorun for a service
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm microsoft_visual_cc obfuscated packed packed packer_detected safengine_shielden
Link:
https://www.filescan.io/uploads/68177a2ed95f3e34e9600175/reports/d4b61f65-37d6-48b3-8b91-e4b80064d241/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/8121bf71677fa544376da9bf9026840d183dcb817bf32d480f3d1c593f287685
Malware family:
Microsoft Corporation
Create hunting rule
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/677182cb-a124-4060-bd23-1627d4bb522d
Result
Threat name:
GhostRat, ValleyRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1680817
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Found malware configuration
Hides threads from debuggers
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file has a writeable .text section
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Yara detected GhostRat
Yara detected ValleyRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1680817 Sample: wtUd42Z3xp.exe Startdate: 04/05/2025 Architecture: WINDOWS Score: 100 36 Suricata IDS alerts for network traffic 2->36 38 Found malware configuration 2->38 40 Antivirus / Scanner detection for submitted sample 2->40 42 7 other signatures 2->42 7 wtUd42Z3xp.exe 14 2->7         started        12 wtUd42Z3xp.exe 1 2->12         started        14 svchost.exe 2->14         started        16 6 other processes 2->16 process3 dnsIp4 34 45.204.192.2, 49722, 80 ITACE-AS-APItaceInternationalLimitedHK Seychelles 7->34 28 C:\Windows\SysWOW64\...\45.204.197.88[1].log, PE32 7->28 dropped 30 C:\ProgramData\Microsoft\DiagHostS.exe, PE32 7->30 dropped 48 Hides threads from debuggers 7->48 18 DiagHostS.exe 3 7->18         started        50 Detected unpacking (changes PE section rights) 12->50 52 Tries to detect virtualization through RDTSC time measurements 12->52 54 Switches to a custom stack to bypass stack traces 12->54 22 conhost.exe 12->22         started        56 Changes security center settings (notifications, updates, antivirus, firewall) 14->56 24 MpCmdRun.exe 1 14->24         started        file5 signatures6 process7 dnsIp8 32 45.204.197.88, 1991, 1992, 49723 ITACE-AS-APItaceInternationalLimitedHK Seychelles 18->32 44 Multi AV Scanner detection for dropped file 18->44 46 Detected unpacking (creates a PE file in dynamic memory) 18->46 26 conhost.exe 24->26         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8121bf71677fa544376da9bf9026840d183dcb817bf32d480f3d1c593f287685
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8121bf71677fa544376da9bf9026840d183dcb817bf32d480f3d1c593f287685/
Threat name:
Win32.Trojan.Alevaul
Create hunting rule
Status:
Malicious
First seen:
2025-05-03 21:53:00 UTC
File Type:
PE (Exe)
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qeq364lhp6suin3nvg7zajuebumd3s4bppzs2saphuofspzio2cq._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
discovery
Link:
https://tria.ge/reports/250504-rvrhqsfl2s/
Behaviour
Program crash
System Location Discovery: System Language Discovery
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/381cf026-af8e-4cfa-bf99-e0fa3a9460dc
Unpacked files
SH256 hash:
8121bf71677fa544376da9bf9026840d183dcb817bf32d480f3d1c593f287685
MD5 hash:
33ede210bdac80b3bd8dc5433ab5dc65
SHA1 hash:
3bc5980b922d1398ae98f4b2ae917441d6a030e2
Link:
https://www.unpac.me/results/42fc763b-4496-4d22-997c-d162e78286be/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.98
Link:
https://yomi.yoroi.company/submissions/8121bf71677fa544376da9bf9026840d183dcb817bf32d480f3d1c593f287685

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__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
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: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:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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.

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_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN_SVC_APICan Manipulate Windows ServicesKERNEL32.dll::OpenServiceW
ADVAPI32.dll::OpenServiceW

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