MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91dd8558fa3d3283e71559a63d8b4cc8efa140111721b8b01a6fe052f95ba89d. 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 File information Comments

SHA256 hash: 91dd8558fa3d3283e71559a63d8b4cc8efa140111721b8b01a6fe052f95ba89d
SHA3-384 hash: 414bd81288f801681a1f8720bedc15ad8971346470902a7b8f8170f94ca3ff4983dd874e0fb495ebd5a3b6d3451c6e25
SHA1 hash: a910994dfae15b2f83949a02a0598f2d1990690c
MD5 hash: 16fc252f0c0a87aad7ffdf6466d35400
humanhash: uniform-enemy-carolina-friend
File name:svchost.exe
Download: download sample
Signature Simda
File size:240'640 bytes
First seen:2025-11-23 09:26:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 25724a12bec6f765c371201f99ac92be (12 x Simda)
ssdeep 6144:fEXlSylvFuWaS54hIAv/QhuA7HY8pPZ0FP6BzxM5Em:gAylvv5YRwh9HYd61xhm
TLSH T1813412C7B18928D5C440067349FAA7815A2DFD551B1BC8FBEF88412DAFAC981BE3531E
TrID 27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
20.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
18.6% (.EXE) Win32 Executable (generic) (4504/4/1)
8.5% (.ICL) Windows Icons Library (generic) (2059/9)
8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter Hexastrike
Tags:exe Simda

Intelligence


File Origin
# of uploads :
1
# of downloads :
13
Origin country :
IE IE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
svchost.exe
Verdict:
Suspicious activity
Analysis date:
2025-11-23 19:24:17 UTC
Tags:
anti-evasion

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the Windows subdirectories
Creating a process from a recently created file
DNS request
Connection attempt
Sending an HTTP POST request
Creating a file in the %temp% directory
Launching the default Windows debugger (dwwin.exe)
Moving of the original file
Enabling autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context packed
Result
Gathering data
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 32 Exe x86
Threat name:
Win32.Infostealer.Simda
Status:
Malicious
First seen:
2025-11-22 09:37:08 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
29 of 36 (80.56%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery persistence
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Drops file in Windows directory
Modifies WinLogon
Executes dropped EXE
Modifies WinLogon for persistence
Verdict:
Malicious
Tags:
Win.Trojan.Shiz-1268
YARA:
n/a
Unpacked files
SH256 hash:
91dd8558fa3d3283e71559a63d8b4cc8efa140111721b8b01a6fe052f95ba89d
MD5 hash:
16fc252f0c0a87aad7ffdf6466d35400
SHA1 hash:
a910994dfae15b2f83949a02a0598f2d1990690c
SH256 hash:
0df3893837b3ad5e55b0433f39ce36337e3fd2b46c41cd12bd7e2535e0d29e61
MD5 hash:
bbd058a9c9eb29f01916ade62df60eb1
SHA1 hash:
132aa55777bdc00dc35834736ab6b9c35f8ffa1a
Detections:
Simda MALWARE_Win_Simda
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Comments