MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b731f58435d0c90c90fe817b17a13e4f3eb9683da6630edf435ef97d5e762b4c. 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


Threat unknown


Vendor detections: 15


Intelligence 15 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b731f58435d0c90c90fe817b17a13e4f3eb9683da6630edf435ef97d5e762b4c
SHA3-384 hash: 401d62754670b31bb2ba7e2238387145d6af1ce1ce8a5f34576c13c17b3887572fb58eca8b17bb97cc00b242aedcfc96
SHA1 hash: acc3cad52665de33e6b3977f7822ddd09614de5f
MD5 hash: 32a8a530f970cbeeeb3b2231bf645947
humanhash: sweet-georgia-single-summer
File name:sdfsd64a.exe
Download: download sample
File size:2'317'591 bytes
First seen:2025-11-15 18:20:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3674b8fb50b4fb24fadcbf5429306213
ssdeep 49152:pq8CnibSgAaxNQ0idSktc1OucTAVH20vDT:pPvzAaxNQ0idSkn8VH20vD
Threatray 68 similar samples on MalwareBazaar
TLSH T1E6B5AF65ABB420F8D96BC138C9734517EAF2F4561360A7CF07A0C6661F237E19A3A3D1
TrID 48.7% (.EXE) Win64 Executable (generic) (10522/11/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter mazznrz
Tags:exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
82
Origin country :
ID ID
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_b731f58435d0c90c90fe817b17a13e4f3eb9683da6630edf435ef97d5e762b4c.exe
Verdict:
Malicious activity
Analysis date:
2025-11-15 18:28:15 UTC
Tags:
anti-evasion
Link:
https://app.any.run/tasks/d9bd0911-32a8-4827-b5de-dcd505f32088

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/38299/
Detection(s):
Win.Exploit.ZemanaAntiMalware-10026336-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6918c484bdb0ec3a9dc1fa63
Tags:
dropper emotet virus smtp
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Creating a file in the %temp% directory
Creating a service
Launching a service
Loading a system driver
Creating a file in the Windows directory
Creating a file
Creating a file in the Windows subdirectories
Launching a process
Loading a suspicious library
Running batch commands
Creating a process with a hidden window
Forced system process termination
Creating a file in the system32 directory
Creating a file in the system32 subdirectories
Using the Windows Management Instrumentation requests
Enabling autorun for a service
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug base64 crypto evasive fingerprint hacktool lolbin microsoft_visual_cc msiexec overlay packed regsvr32
Link:
https://www.filescan.io/uploads/6918c47a0c70fbf813abee34/reports/ec14804b-f936-4798-836b-24abb21665b0/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b731f58435d0c90c90fe817b17a13e4f3eb9683da6630edf435ef97d5e762b4c
Verdict:
Malicious
File Type:
exe x64
First seen:
2025-11-15T10:32:00Z UTC
Last seen:
2025-11-17T00:17:00Z UTC
Hits:
~100
Detections:
Trojan.Win32.PoolInject.sba Trojan.Win32.PoolInject.dkv Trojan.Win32.Inject.sb Trojan.Win32.Arkmblk.tl PDM:Trojan.Win32.Generic Backdoor.Win32.DragonBreath.sb Trojan-Dropper.Win32.Dapato.sb
Link:
https://opentip.kaspersky.com/b731f58435d0c90c90fe817b17a13e4f3eb9683da6630edf435ef97d5e762b4c/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/dca9cd44-ee42-45ca-9c09-09a8c447ed78
Score:
87%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b731f58435d0c90c90fe817b17a13e4f3eb9683da6630edf435ef97d5e762b4c
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/32a8a530f970cbeeeb3b2231bf645947
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b731f58435d0c90c90fe817b17a13e4f3eb9683da6630edf435ef97d5e762b4c/
Verdict:
Malicious
Threat:
Trojan.Win32.PoolInject
Link:
https://tip.neiki.dev/file/b731f58435d0c90c90fe817b17a13e4f3eb9683da6630edf435ef97d5e762b4c
Threat name:
Win64.Trojan.Lazy
Create hunting rule
Status:
Malicious
First seen:
2025-11-15 15:22:30 UTC
File Type:
PE+ (Exe)
Extracted files:
4
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w4y7lbbv2deqzeh6qf5rpij6j47ls2b5uzrq5x2dl34x2xtwfnga._file
Verdict:
malicious
Label(s):
roningloader
Create hunting rule
Similar samples: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fe7154a9ca99cc28bcff9e89a33847b15982835d20b1c36fd3c92b4dcf6fe47c
+ 58 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery
Link:
https://tria.ge/reports/251115-wy3gmawmbm/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Drops file in System32 directory
Enumerates processes with tasklist
Loads dropped DLL
Verdict:
Malicious
Tags:
Win.Exploit.ZemanaAntiMalware-10026336-0
YARA:
n/a
Link:
https://app.threat.zone/submission/3e4dd445-b39e-4eef-8612-bd2273f97e4e
Unpacked files
SH256 hash:
b731f58435d0c90c90fe817b17a13e4f3eb9683da6630edf435ef97d5e762b4c
MD5 hash:
32a8a530f970cbeeeb3b2231bf645947
SHA1 hash:
acc3cad52665de33e6b3977f7822ddd09614de5f
Link:
https://www.unpac.me/results/a8218bf9-bbf1-4e6d-8190-580c03250224/
SH256 hash:
5a88852aac5ad4c27c4a6bed44b69f22f7aceca1dc405e638910cb4137fa2ca9
MD5 hash:
47877a0c2fcee4ac823eb46d88efdbcb
SHA1 hash:
7ae0ed171baee14ff0d5daecfbc1b82bf66a9c54
Link:
https://www.unpac.me/results/a8218bf9-bbf1-4e6d-8190-580c03250224/
Malware family:
ValleyRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b731f58435d0/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/b731f58435d0c90c90fe817b17a13e4f3eb9683da6630edf435ef97d5e762b4c

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: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:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:EDR_Killer_EDR_Freeze_Tool
Create hunting rule
Author:Valton Tahiri (cybee.ai)
Description:Detects EDR-Freeze tool in memory - EDR/AV freezing malware
Reference:https://www.linkedin.com/in/valton-tahiri/
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar

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/38299/

Comments