MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3cb57ccb8fd73dc11d86ed2a46f729fd0f16d9322fff151b171a664122d3bf8f. 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



Simda


Vendor detections: 13


Intelligence 13 IOCs YARA 9 File information Comments

SHA256 hash: 3cb57ccb8fd73dc11d86ed2a46f729fd0f16d9322fff151b171a664122d3bf8f
SHA3-384 hash: a42a2ef025148363cc52b6845a6738a1852da47ccd542a2f3e4f26e9e3cac5a164538b2a98cc0ba9ff14de252ee028c7
SHA1 hash: a32f3c4a632b8a7b31c59ade7f38c1cd5ffe5d0e
MD5 hash: 540c0de47e1f6eb8f7be5ed4de7eb653
humanhash: nevada-echo-connecticut-venus
File name:svchost.exe
Download: download sample
Signature Simda
File size:430'080 bytes
First seen:2025-11-23 09:20:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7ec179fea3ba0cfb69d21d330597a106 (5 x Simda)
ssdeep 3072:gTJXLESylV534DNujdXwtrUHioF92L59QvPJvzxsx8ME:gtXLESuV5I5ujNHioajQHxzn
TLSH T15B94124C6B6174B3E65203399BBF79D53A389D99480D2C420A7F28373B765A39208DB7
TrID 34.7% (.EXE) UPX compressed Win32 Executable (27066/9/6)
34.1% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
8.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.7% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter Hexastrike
Tags:exe Simda

Intelligence


File Origin
# of uploads :
1
# of downloads :
14
Origin country :
IE IE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.9%
Tags:
emotet simda shiz
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the Windows subdirectories
Searching for synchronization primitives
Сreating synchronization primitives
Creating a process from a recently created file
DNS request
Connection attempt
Moving of the original file
Enabling autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
microsoft_visual_cc packed packed packed upx
Result
Gathering data
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 32 Exe x86
Threat name:
Win32.Backdoor.Simda
Status:
Malicious
First seen:
2025-11-22 00:15:10 UTC
File Type:
PE (Exe)
AV detection:
29 of 36 (80.56%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery persistence upx
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Drops file in Windows directory
UPX packed file
Modifies WinLogon
Executes dropped EXE
Modifies WinLogon for persistence
Unpacked files
SH256 hash:
3cb57ccb8fd73dc11d86ed2a46f729fd0f16d9322fff151b171a664122d3bf8f
MD5 hash:
540c0de47e1f6eb8f7be5ed4de7eb653
SHA1 hash:
a32f3c4a632b8a7b31c59ade7f38c1cd5ffe5d0e
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:MALWARE_Win_Simda
Author:ditekShen
Description:Detects Simda / Shifu infostealer
Rule name:NET
Author:malware-lu
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Author:malware-lu
Rule name:UPXv20MarkusLaszloReiser
Author:malware-lu
Rule name:upx_largefile
Author:k3nr9

File information


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

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