MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 39f93bf9c8075a8fdf1e55593313db8dff9e2c234edc5b2854da91e83fa06657. 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: 17
| SHA256 hash: | 39f93bf9c8075a8fdf1e55593313db8dff9e2c234edc5b2854da91e83fa06657 |
|---|---|
| SHA3-384 hash: | d820488aa8be1ba39a48939dbf1ff4c438809729eee954e46c9385d3dc16cedb14b32b6cc9e0100c4a74df5a9ddd8801 |
| SHA1 hash: | b57f820d6bda6109f67155a5636965b034fd96d2 |
| MD5 hash: | 6dd21638dac079e394096b1b018d5638 |
| humanhash: | blue-robin-mobile-happy |
| File name: | file |
| Download: | download sample |
| Signature | Smoke Loader |
| File size: | 233'984 bytes |
| First seen: | 2024-05-21 13:26:16 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 965b002ae05e80f1dd898254cb5f61fa (1 x Smoke Loader) |
| ssdeep | 3072:Ar9ft1WgkACOZVw+UmB4dlXny76VrY4TKQHBAgzVLK0ImGTXuVnuBZ40Uda:AEdtKyVHRxBBYDmeuRCZ40 |
| Threatray | 15 similar samples on MalwareBazaar |
| TLSH | T10E34CE3176E0C479E5BB46315C7499980A7FFCB29E64DA5B338C3F0F28702D09A66762 |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10523/12/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4504/4/1) |
| File icon (PE): |  |
| dhash icon | 0009112148642100 (1 x Smoke Loader) |
| Reporter |  Bitsight |
| Tags: | exe Smoke Loader |
Bitsight
url: https://vk.com/doc5294803_669807817?hash=1Yma96tGW1siicKHgpqUp5g1ew36iBexwFolcX2IBzo&dl=Ep8DMLs75fH88UQiXTLlcuaiV57ViETZUTiJQOgRiPk&api=1&no_preview=1#file200Intelligence
File Origin
# of uploads :
1
# of downloads :
381
Origin country :
USVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
39f93bf9c8075a8fdf1e55593313db8dff9e2c234edc5b2854da91e83fa06657.exe
Verdict:
Malicious activity
Analysis date:
2024-05-21 13:27:28 UTC
Tags:
loader smokeloader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Gathering data
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
DNS request
Connection attempt
Sending an HTTP POST request
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
packed
Verdict:
Malicious
Labled as:
Malware
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
STOP Ransomware
Verdict:
Malicious
Result
Threat name:
SmokeLoader
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
AI detected suspicious sample based on static and dynamic analysis
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Checks if the current machine is a virtual machine (disk enumeration)
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Detected unpacking (changes PE section rights)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Snort IDS alert for network traffic
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)
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Detection:
smokeloader
Threat name:
Win32.Trojan.Privateloader
Status:
Malicious
First seen:
2024-05-21 13:27:08 UTC
File Type:
PE (Exe)
Extracted files:
21
AV detection:
24 of 24 (100.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 5 additional samples on MalwareBazaar
Result
Malware family:
smokeloader
Score:
10/10
Tags:
family:smokeloader botnet:rbrn backdoor trojan
Behaviour
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Uses Task Scheduler COM API
Program crash
Deletes itself
SmokeLoader
Malware Config
C2 Extraction:
http://stayherefata4l.org/index.php
http://masduh38sjdai.org/index.php
http://omfghellobrosjda38.org/index.php
http://masduh38sjdai.org/index.php
http://omfghellobrosjda38.org/index.php
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
ca9e5ec122f2c1aeb4abe9a9fd0765b443da2adacc82b2ec3e67b5e2b773391b
MD5 hash:
7e24766145c1d7c37284dcb73c9da978
SHA1 hash:
28352c11fd6a4a907a3f68ce809a575e61f1d62f
Detections:
SmokeLoaderStage2
win_smokeloader_a2
SH256 hash:
39f93bf9c8075a8fdf1e55593313db8dff9e2c234edc5b2854da91e83fa06657
MD5 hash:
6dd21638dac079e394096b1b018d5638
SHA1 hash:
b57f820d6bda6109f67155a5636965b034fd96d2
Malware family:
SmokeLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | maldoc_find_kernel32_base_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| Rule name: | Windows_Trojan_Generic_2993e5a5 |
|---|---|
| Author: | Elastic Security |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Dropped by
Privateloader
Delivery method
Distributed via web download
BLint
The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.
Findings
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (HIGH_ENTROPY_VA) | high |
| CHECK_NX | Missing Non-Executable Memory Protection | critical |
| CHECK_PIE | Missing Position-Independent Executable (PIE) Protection | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| WIN32_PROCESS_API | Can Create Process and Threads | KERNEL32.dll::CloseHandle |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryA KERNEL32.dll::LoadLibraryExA KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetVolumeInformationA KERNEL32.dll::GetStartupInfoW |
| WIN_BASE_EXEC_API | Can Execute other programs | KERNEL32.dll::WriteConsoleW KERNEL32.dll::WriteConsoleA KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleAliasA KERNEL32.dll::GetConsoleMode KERNEL32.dll::GetConsoleCP |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CreateFileW KERNEL32.dll::GetSystemDirectoryA KERNEL32.dll::RemoveDirectoryA |
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