MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 90a23ff30cf40dbf180e2ca98360bbcecaf1a736f7bb118efe7fbff2db7dc82c. 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: 9


Intelligence 9 IOCs YARA 1 File information Comments

SHA256 hash: 90a23ff30cf40dbf180e2ca98360bbcecaf1a736f7bb118efe7fbff2db7dc82c
SHA3-384 hash: a21968779217110476504ab0cba1be0e4962c9324391245fce3b2d919d2a94009dafb1846cbf0df2b11875ba05bdcabc
SHA1 hash: 3c8cdf195e5d2ff97524c60edbcf7c1f4c58a87f
MD5 hash: e4311ab08f705b3b150e1be181c9e260
humanhash: purple-angel-lima-missouri
File name:HEUR-Backdoor.Win32.Generic-90a23ff30cf40dbf180e2ca98360bbcecaf1a736f7bb118efe7fbff2db7dc82c
Download: download sample
Signature Simda
File size:2'184'192 bytes
First seen:2022-08-31 02:53:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 173abfa8f7d7adac2a90a2e42625b7d9 (27 x Simda, 6 x GuLoader)
ssdeep 49152:smV2ApPmV2ApPmV2Ap/mV2ApPmV2ApPmV2Ap8:smDmDm7mDmDmQ
TLSH T19DA58E21F1C0807AE4F5157096FF7A5B246CA9B6472838D7E7986EC928741F27A3C2C7
TrID 38.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
20.5% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
13.0% (.EXE) Win64 Executable (generic) (10523/12/4)
8.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter OSimao
Tags:exe Simda

Intelligence


File Origin
# of uploads :
1
# of downloads :
231
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for analyzing tools
Creating a file in the Windows subdirectories
Searching for synchronization primitives
Сreating synchronization primitives
Creating a process from a recently created file
DNS request
Sending an HTTP GET request
Creating a file in the %temp% directory
Sending a custom TCP request
Searching for the anti-virus window
Moving of the original file
Query of malicious DNS domain
Enabling autorun
Sending an HTTP GET request to an infection source
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
75%
Tags:
anti-debug anti-vm cmd.exe evasive explorer.exe greyware hacktool keylogger overlay packed shell32.dll shifu shiz spyeye
Result
Verdict:
MALICIOUS
Result
Threat name:
Simda Stealer
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Behaviour
Behavior Graph:
n/a
Threat name:
Win32.Trojan.Simda
Status:
Malicious
First seen:
2020-11-06 02:39:30 UTC
File Type:
PE (Exe)
Extracted files:
17
AV detection:
34 of 41 (82.93%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
persistence
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Modifies WinLogon
Loads dropped DLL
Executes dropped EXE
Modifies WinLogon for persistence
Unpacked files
SH256 hash:
90a23ff30cf40dbf180e2ca98360bbcecaf1a736f7bb118efe7fbff2db7dc82c
MD5 hash:
e4311ab08f705b3b150e1be181c9e260
SHA1 hash:
3c8cdf195e5d2ff97524c60edbcf7c1f4c58a87f
Detections:
win_simda_g0 win_simda_g1
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:meth_get_eip
Author:Willi Ballenthin

File information


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

Comments