MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4c2ac723fa0b5835243712cf8f1205701cf441e4a030587f9d64e96a9205a734. 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 5 File information Comments

SHA256 hash: 4c2ac723fa0b5835243712cf8f1205701cf441e4a030587f9d64e96a9205a734
SHA3-384 hash: 92aeec8616057548e4b71d983400aa79fc8f4b291fec93a767bd1fd083de5a96ef07efb48e8bb6b0928e6d5c7851600e
SHA1 hash: b1c1908b7f8fdb6d1ba30addee12df6bbb842d90
MD5 hash: a19031852e80a27c2a83363624f5bd98
humanhash: california-chicken-wyoming-low
File name:svchost.exe
Download: download sample
Signature Simda
File size:346'624 bytes
First seen:2025-11-23 09:21:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 846a8dcbd0f5c9ffbf7cfa1fb2e5b31e (7 x Simda)
ssdeep 6144:99VlVACGmxRoyt1SZq1Q9A9ty5bhJcrs0MurPw/c4hd/B/coyXT3nOGX6T:9lVP1FtEZv9qyFhJy56d/eoyXjn9W
TLSH T1657423FD772A8B66F57A47736E43C31FA02EF3A41A84E151F69548623C707A33199382
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 UPX
File size (compressed) :346'624 bytes
File size (de-compressed) :614'400 bytes
Format:win32/pe
Unpacked file: 01b51e4a4c514c6ee8d9c2eb8b888182e24d21e8fd2b228e376a42048cbfe585

Intelligence


File Origin
# of uploads :
1
# of downloads :
12
Origin country :
IE IE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.9%
Tags:
emotet smarts trojan micro
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 an HTTP GET request
Creating a file
Sending a custom TCP 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:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm banker lordpe obfuscated packed packed packed packed shifu shiz 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 15:24:33 UTC
File Type:
PE (Exe)
Extracted files:
7
AV detection:
32 of 36 (88.89%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:simda discovery persistence stealer trojan upx
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:
Malicious
Tags:
Win.Malware.Generic-6862577-0
YARA:
n/a
Unpacked files
SH256 hash:
4c2ac723fa0b5835243712cf8f1205701cf441e4a030587f9d64e96a9205a734
MD5 hash:
a19031852e80a27c2a83363624f5bd98
SHA1 hash:
b1c1908b7f8fdb6d1ba30addee12df6bbb842d90
SH256 hash:
46effa68f1d17dada0bccec917c9d4f802b6a4dcfb4f0fc474b2a2ac1712823c
MD5 hash:
06680cd3e18599dd149736944d24185c
SHA1 hash:
7ef8542598245502689837a4ea3cf844d3defc67
Detections:
win_simda_auto win_simda_g1 win_simda_g0 Simda MALWARE_Win_Simda
SH256 hash:
92b26b4e28fcd87c6a72629c6d1d0337b6d638da2af9eaca9df02b8782c828dc
MD5 hash:
b84bc27b5c95ad257c1ddcb24b0d84e2
SHA1 hash:
13927a4a4ab4b89f8b321757d3e2d2edf705294d
Detections:
win_simda_auto win_simda_g1 win_simda_g0 Simda MALWARE_Win_Simda
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:UPX20030XMarkusOberhumerLaszloMolnarJohnReiser
Author:malware-lu
Rule name:UPX290LZMAMarkusOberhumerLaszloMolnarJohnReiser
Author:malware-lu
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.

Simda

Executable exe 4c2ac723fa0b5835243712cf8f1205701cf441e4a030587f9d64e96a9205a734

(this sample)

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