MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 2fbf6c5454bb88073ecbc13b293375ec58a9f8636c188881ffd7a3573f3c1cac. 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
| SHA256 hash: | 2fbf6c5454bb88073ecbc13b293375ec58a9f8636c188881ffd7a3573f3c1cac |
|---|---|
| SHA3-384 hash: | 5ab44f2265ec37d4f40aa7f49031b9aa60011a3f114fea3290b18403f5899b561d89f7ced2c639dc2a9d063047743cd6 |
| SHA1 hash: | 97148ee34a695ab6f4f410d8a44dc24291f6aab8 |
| MD5 hash: | 270c0f51e8e46bbe41367c77d9dcf812 |
| humanhash: | six-mirror-blossom-kansas |
| File name: | 2fbf6c5454bb88073ecbc13b293375ec58a9f8636c188881ffd7a3573f3c1cac |
| Download: | download sample |
| Signature | Smoke Loader |
| File size: | 3'576'136 bytes |
| First seen: | 2021-06-08 17:23:13 UTC |
| Last seen: | 2021-06-08 17:35:11 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 6885012d565b0b9c4fbd4da3e04d69a1 (4 x Smoke Loader) |
| ssdeep | 49152:t8C2N2EOitdXHhSSLAsHz7bR42Afl0Upj1TJOe9FOeyJ:32UEZrd42Al0UpjzhyJ |
| Threatray | 1'897 similar samples on MalwareBazaar |
| TLSH | 5EF56C13B288613FC46B067A087F96A4983FB76169168C1757F09A4C8F371852E3EF5B |
| 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 :
244
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Searching for the window
Unauthorized injection to a recently created process
Sending a UDP request
Creating a file in the %temp% directory
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 evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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 detect sandboxes and other dynamic analysis tools (process name or module or function)
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:
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2021-06-08 00:03:00 UTC
File Type:
PE (Exe)
Extracted files:
24
AV detection:
13 of 46 (28.26%)
Threat level:
5/5
Verdict:
malicious
Similar samples:
+ 1'887 additional samples on MalwareBazaar
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:
2fbf6c5454bb88073ecbc13b293375ec58a9f8636c188881ffd7a3573f3c1cac
MD5 hash:
270c0f51e8e46bbe41367c77d9dcf812
SHA1 hash:
97148ee34a695ab6f4f410d8a44dc24291f6aab8
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.66
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.
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