MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41c40cad40ad7a1ee722bc61a8abfd1cb316b6b0d6a8b0969db1458701322e64. 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: 12


Intelligence 12 IOCs YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 41c40cad40ad7a1ee722bc61a8abfd1cb316b6b0d6a8b0969db1458701322e64
SHA3-384 hash: de2fdd6bef340fadc38eddbfa09f8be5bf8e388398582a15f3e19f2cd5ea5474a9138d6b0a44d35c5f3aa5180755474d
SHA1 hash: ddddfb3caeb43cd4d1c2202957bddd6ce8295799
MD5 hash: c846247ea7a08d47f702c2d1ace76006
humanhash: pasta-wyoming-xray-nebraska
File name:svchost.exe
Download: download sample
Signature Simda
Create hunting rule
File size:798'720 bytes
First seen:2025-11-23 09:20:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 846a8dcbd0f5c9ffbf7cfa1fb2e5b31e (7 x Simda)
ssdeep 6144:b9y9VlVACGmxRoyt1SZq1Q9A9ty5bhJcrs0MurPw/c4hd/B/coyXT3nOGX6T:ilVP1FtEZv9qyFhJy56d/eoyXjn9W
TLSH T1E40523FD772A8766F57A47736A43C31FA02EF3A41984E152F69948623C707A33199382
TrID 52.7% (.EXE) UPX compressed Win32 Executable (27066/9/6)
12.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
9.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.EXE) Win32 Executable (generic) (4504/4/1)
4.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter Hexastrike
Tags:exe Simda

Intelligence

File Origin
# of uploads :
1
# of downloads :
8
Origin country :
IE IE
Vendor Threat Intelligence
Detection:
Simda
Create hunting rule
Link:
https://www.capesandbox.com/analysis/40331/
Gathering data
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6922d92ab6ee81118d2c9a58
Tags:
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
Sending a custom TCP request
Sending an HTTP GET request
Launching the default Windows debugger (dwwin.exe)
Searching for the anti-virus window
Moving of the original file
Query of malicious DNS domain
Enabling autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
lolbin lordpe obfuscated packed packed packed upx wscript
Link:
https://www.filescan.io/uploads/6922d657f96b58f0dc80b187/reports/476fffe2-a306-4cdb-a70a-2912782c31e8/overview
Verdict:
Malicious
Labled as:
Backdoor.Generic
Link:
https://www.hybrid-analysis.com/sample/41c40cad40ad7a1ee722bc61a8abfd1cb316b6b0d6a8b0969db1458701322e64
Result
Gathering data
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/41c40cad40ad7a1ee722bc61a8abfd1cb316b6b0d6a8b0969db1458701322e64
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/c846247ea7a08d47f702c2d1ace76006
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/41c40cad40ad7a1ee722bc61a8abfd1cb316b6b0d6a8b0969db1458701322e64/
Threat name:
Win32.Backdoor.Simda
Create hunting rule
Status:
Malicious
First seen:
2025-11-21 20:30:58 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
34 of 36 (94.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ihcazlkavv5b5zzcxrq2rk75dszrnnvq22ulbfu5wfcyoajsfzsa._file
Result
Malware family:
simda
Create hunting rule
Score:
  10/10
Tags:
family:simda discovery persistence stealer trojan upx
Link:
https://tria.ge/reports/251123-lm85xsykaq/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
UPX packed file
Modifies WinLogon
Executes dropped EXE
Simda family
simda
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/af7c3489-4ddc-4368-9c6e-b69de3d2bf95
Unpacked files
SH256 hash:
5d608feaa4b55c659a988700ff1feb1cdcd53ea2b2bdad26699c8873bdc7c240
MD5 hash:
46bc2ad792def51da6cc689c303c158d
SHA1 hash:
4ce341fcd408d001c4c1b0c4c368a9510f5a84d1
Detections:
win_simda_auto
Create hunting rule
win_simda_g1
Create hunting rule
win_simda_g0
Create hunting rule
Simda
Create hunting rule
MALWARE_Win_Simda
Create hunting rule
Link:
https://www.unpac.me/results/90c725bb-2555-43a1-bdcd-5cee2a0395d2/
Parent samples :
41c40cad40ad7a1ee722bc61a8abfd1cb316b6b0d6a8b0969db1458701322e64
4be58f23552773c5d2eae9e54cc40ed8443c342f74c4818d36109cdfffeb15f8
4c2ac723fa0b5835243712cf8f1205701cf441e4a030587f9d64e96a9205a734
853b3e80b9278e7fcf8e9ab37d80d5d8c34e5fb617cf3e77d857b83d494e1fd2
bb76e9ccc65c0ad6714b3841e387667094d23ff6a3f8406c9b7165fa69495372
ddaec2a97a186681672d2cfc0382664d56b3e216470b7ffe8ce09efc92040b71
f77ccd01991f00d8222b4d40b0ee22144478787476146d9d3fc14645bf007480
SH256 hash:
41c40cad40ad7a1ee722bc61a8abfd1cb316b6b0d6a8b0969db1458701322e64
MD5 hash:
c846247ea7a08d47f702c2d1ace76006
SHA1 hash:
ddddfb3caeb43cd4d1c2202957bddd6ce8295799
Link:
https://www.unpac.me/results/90c725bb-2555-43a1-bdcd-5cee2a0395d2/
Malware family:
Shifu
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/41c40cad40ad/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.70
Link:
https://yomi.yoroi.company/submissions/41c40cad40ad7a1ee722bc61a8abfd1cb316b6b0d6a8b0969db1458701322e64

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:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:MALWARE_Win_Simda
Create hunting rule
Author:ditekShen
Description:Detects Simda / Shifu infostealer
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:UPX20030XMarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:UPX290LZMAMarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:UPXv20MarkusLaszloReiser
Create hunting rule
Author:malware-lu
Rule name:upx_largefile
Create hunting rule
Author:k3nr9
Rule name:Windows_Trojan_Zeus_e51c60d7
Create hunting rule
Author:Elastic Security
Description:Detects strings used in Zeus web injects. Many other malware families are built on Zeus and may hit on this signature.
Reference:https://www.virusbulletin.com/virusbulletin/2014/10/paper-evolution-webinjects
Rule name:win_simda_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.simda.

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/40331/

Comments