MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4d9d9eccf8badd954deec00ea5e57e31806371003245453fcbb5755c922c658. 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



Smoke Loader


Vendor detections: 6


Intelligence 6 IOCs YARA 1 File information Comments

SHA256 hash: d4d9d9eccf8badd954deec00ea5e57e31806371003245453fcbb5755c922c658
SHA3-384 hash: 187b6ad6a6fc9f3c4342cd1617e5fd27371be27634a25b36166529ee78e692fa760ce3104f981220db906331321f4ce8
SHA1 hash: a0779f4c3b4ae1c0ac59ce7b7648109ad38aa257
MD5 hash: dd1b390ba71a118cd0f2f58135313871
humanhash: arizona-iowa-bluebird-december
File name:d4d9d9eccf8badd954deec00ea5e57e31806371003245453fcbb5755c922c658
Download: download sample
Signature Smoke Loader
File size:3'572'040 bytes
First seen:2021-06-08 17:23:41 UTC
Last seen:2021-06-08 17:35:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 6885012d565b0b9c4fbd4da3e04d69a1 (4 x Smoke Loader)
ssdeep 49152:C8C2N2EOitdXHhSSLAsHz7YR42Afl0Upj1TJOe9F8wca:O2UEZr642Al0Upjzowca
Threatray 2'514 similar samples on MalwareBazaar
TLSH 88F56C13B288613FC46B067A087F96A4983FB76169168C1757F09A4C8F371852E3EF5B
Reporter JAMESWT_WT
Tags:exe Merkuri LLC signed Smoke Loader

Code Signing Certificate

Organisation:Merkuri LLC
Issuer:Sectigo RSA Code Signing CA
Algorithm:sha256WithRSAEncryption
Valid from:2021-04-28T00:00:00Z
Valid to:2022-04-28T23:59:59Z
Serial number: b8f726508cf1d7b7913bf4bbd1e5c19c
Intelligence: 4 malware samples on MalwareBazaar are signed with this code signing certificate
MalwareBazaar Blocklist:This certificate is on the MalwareBazaar code signing certificate blocklist (CSCB)
Thumbprint Algorithm:SHA256
Thumbprint: 2f4525e2503ea8beb30d027f7e811518323a6fc35797d27378b3a79bf7884028
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
2
# of downloads :
198
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
d4d9d9eccf8badd954deec00ea5e57e31806371003245453fcbb5755c922c658.exe
Verdict:
Suspicious activity
Analysis date:
2021-06-08 17:48:05 UTC
Tags:
n/a

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

Behaviour
Creating a window
Searching for the window
Unauthorized injection to a recently created process
Creating a file in the %temp% directory
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
DNS request
Connection attempt
Sending an HTTP POST request
Launching a process
Reading critical registry keys
Setting browser functions hooks
Unauthorized injection to a system process
Deleting of the original file
Enabling autorun by creating a file
Unauthorized injection to a browser process
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
SmokeLoader
Detection:
malicious
Classification:
bank.troj.spyw.evad
Score:
100 / 100
Signature
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Checks if browser processes are running
Checks if the current machine is a virtual machine (disk enumeration)
Contains functionality to compare user and computer (likely to detect sandboxes)
Creates a thread in another existing process (thread injection)
Deletes itself after installation
DLL reload attack detected
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hijacks the control flow in another process
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Maps a DLL or memory area into another process
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
PE file has nameless sections
Renames NTDLL to bypass HIPS
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected SmokeLoader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 431467 Sample: ImcSnMNaqx Startdate: 08/06/2021 Architecture: WINDOWS Score: 100 57 Found malware configuration 2->57 59 Yara detected SmokeLoader 2->59 61 Yara detected SmokeLoader 2->61 63 2 other signatures 2->63 8 ImcSnMNaqx.exe 2->8         started        11 wadwrug 2->11         started        process3 signatures4 73 DLL reload attack detected 8->73 75 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 8->75 77 Hijacks the control flow in another process 8->77 13 ImcSnMNaqx.exe 1 8->13         started        79 Injects a PE file into a foreign processes 11->79 16 wadwrug 1 11->16         started        process5 file6 89 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 13->89 91 Renames NTDLL to bypass HIPS 13->91 93 Maps a DLL or memory area into another process 13->93 19 explorer.exe 3 13->19 injected 35 C:\Users\user\AppData\Local\Temp\9A26.tmp, PE32 16->35 dropped 95 Checks if the current machine is a virtual machine (disk enumeration) 16->95 97 Creates a thread in another existing process (thread injection) 16->97 signatures7 process8 dnsIp9 49 melerangrov.org 141.136.0.128, 49758, 49763, 49770 NANO-ASLV Latvia 19->49 37 C:\Users\user\AppData\Roaming\wadwrug, PE32 19->37 dropped 39 C:\Users\user\...\wadwrug:Zone.Identifier, ASCII 19->39 dropped 65 Benign windows process drops PE files 19->65 67 Injects code into the Windows Explorer (explorer.exe) 19->67 69 Deletes itself after installation 19->69 71 2 other signatures 19->71 24 explorer.exe 8 19->24         started        28 explorer.exe 69 19->28         started        31 explorer.exe 19->31         started        33 10 other processes 19->33 file10 signatures11 process12 dnsIp13 51 melerangrov.org 24->51 53 192.168.2.1 unknown unknown 24->53 81 System process connects to network (likely due to code injection or exploit) 24->81 83 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->83 85 Tries to steal Mail credentials (via file access) 24->85 87 3 other signatures 24->87 55 melerangrov.org 28->55 41 C:\Users\user\AppData\...\WalletProxy.dll, PE32 28->41 dropped 43 C:\Users\...\WalletBackgroundServiceProxy.dll, PE32 28->43 dropped 45 C:\Users\user\...\WalletService.dll.mui, PE32 28->45 dropped 47 7 other files (none is malicious) 28->47 dropped file14 signatures15
Threat name:
Win32.Trojan.Zusy
Status:
Malicious
First seen:
2021-06-08 17:24:15 UTC
File Type:
PE (Exe)
Extracted files:
24
AV detection:
13 of 47 (27.66%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Unpacked files
SH256 hash:
9dbf8446c934067c11e5ca0aee71c55466960b4776f5c02bcb6141adebbba0a2
MD5 hash:
87467cab2dbabe504a1e33a9d3421f59
SHA1 hash:
26e39be6a55b36db71c663cae9cfa413a62dd790
SH256 hash:
d4d9d9eccf8badd954deec00ea5e57e31806371003245453fcbb5755c922c658
MD5 hash:
dd1b390ba71a118cd0f2f58135313871
SHA1 hash:
a0779f4c3b4ae1c0ac59ce7b7648109ad38aa257
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:Sectigo_Code_Signed
Description:Detects code signed by the Sectigo RSA Code Signing CA
Reference:https://bazaar.abuse.ch/export/csv/cscb/

File information


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

Comments