MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 991e3c5fb9946ed0490a723a541bda0f36a9b94fff8a68f6729c15e1044dd954. 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: 11


Intelligence 11 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 991e3c5fb9946ed0490a723a541bda0f36a9b94fff8a68f6729c15e1044dd954
SHA3-384 hash: b7f54dc240fbaa646001cc1b9526b3a062592d0d6ddd4cff071f1831e881f91cbabbe017deeafcabf717fb3fcb984b0c
SHA1 hash: e669008a553976d275388ee02e49d5c938a6c27b
MD5 hash: 2b858c79a8a7a652f8cb60059eb7a95a
humanhash: lemon-monkey-mango-thirteen
File name:2b858c79a8a7a652f8cb60059eb7a95a.exe
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:351'744 bytes
First seen:2021-10-18 12:59:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b4cda15a674ef12000829b9be50880b2 (2 x RedLineStealer, 2 x Smoke Loader, 1 x Loki)
ssdeep 6144:r6V5SbKU1o61YWv+MYQMddfjZjz0x0a6zyyHGkES8woAy6HQf:rqSewZYWWMYQMZjZ30x01yaGDS8woH
Threatray 2'288 similar samples on MalwareBazaar
TLSH T11D746D00A690C039F5B752FD89BA9379A52E7FA16B2450CB53D52AEE9F345E0EC30317
File icon (PE):PE icon
dhash icon 5012b2f068696c46 (2 x RaccoonStealer, 1 x Smoke Loader)
Reporter abuse_ch
Tags:exe Smoke Loader

Intelligence

File Origin
# of uploads :
1
# of downloads :
211
Origin country :
n/a
Vendor Threat Intelligence
Detection:
RedLine
Create hunting rule
Link:
https://www.capesandbox.com/analysis/198219/
Detection(s):
Win.Trojan.Generic-9903173-0
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Launching the default Windows debugger (dwwin.exe)
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware
Link:
https://www.filescan.io/uploads/616d6fdcdb358dd15ebf80bb/reports/dabcb5a4-ab51-45c3-bb4d-5d60f55a6831/overview
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:
Malicious Packer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/32bc2748-54a9-4be8-9459-e6b5c93a2c27
Result
Threat name:
SERVHELPER SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/872282
Signature
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
Benign windows process drops PE files
Bypasses PowerShell execution policy
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)
Contains functionality to start a terminal service
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Detected SERVHELPER
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
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queries memory information (via WMI often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Suspicious Csc.exe Source File Folder
Sigma detected: Suspicious PowerShell Invocations - Specific
Sigma detected: Suspicious Script Execution From Temp Folder
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 Costura Assembly Loader
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 504718 Sample: oJsg7ZmpVe.exe Startdate: 18/10/2021 Architecture: WINDOWS Score: 100 51 raw.githubusercontent.com 2->51 53 asdyyauscuauusc.xyz 2->53 55 8 other IPs or domains 2->55 65 Found malware configuration 2->65 67 Antivirus detection for URL or domain 2->67 69 Multi AV Scanner detection for submitted file 2->69 71 11 other signatures 2->71 11 oJsg7ZmpVe.exe 2->11         started        14 dhihhcw 2->14         started        signatures3 process4 signatures5 83 Detected unpacking (changes PE section rights) 11->83 85 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 11->85 87 Maps a DLL or memory area into another process 11->87 89 Creates a thread in another existing process (thread injection) 11->89 16 explorer.exe 4 11->16 injected 91 Multi AV Scanner detection for dropped file 14->91 93 Machine Learning detection for dropped file 14->93 95 Checks if the current machine is a virtual machine (disk enumeration) 14->95 process6 dnsIp7 45 directorycart.com 41.41.255.235, 49760, 49761, 49765 TE-ASTE-ASEG Egypt 16->45 47 188.34.163.98, 49784, 80 HETZNER-ASDE Germany 16->47 49 3 other IPs or domains 16->49 35 C:\Users\user\AppData\Roaming\dhihhcw, PE32 16->35 dropped 37 C:\Users\user\AppData\Local\Temp\2749.exe, PE32+ 16->37 dropped 39 C:\Users\user\...\dhihhcw:Zone.Identifier, ASCII 16->39 dropped 57 System process connects to network (likely due to code injection or exploit) 16->57 59 Benign windows process drops PE files 16->59 61 Deletes itself after installation 16->61 63 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->63 21 2749.exe 4 16->21         started        file8 signatures9 process10 signatures11 73 Multi AV Scanner detection for dropped file 21->73 75 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 21->75 77 Bypasses PowerShell execution policy 21->77 79 Queries memory information (via WMI often done to detect virtual machines) 21->79 24 powershell.exe 25 21->24         started        process12 file13 41 C:\Users\user\AppData\...\ow41lqfk.cmdline, UTF-8 24->41 dropped 81 Detected SERVHELPER 24->81 28 csc.exe 24->28         started        31 conhost.exe 24->31         started        signatures14 process15 file16 43 C:\Users\user\AppData\Local\...\ow41lqfk.dll, PE32 28->43 dropped 33 cvtres.exe 28->33         started        process17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/991e3c5fb9946ed0490a723a541bda0f36a9b94fff8a68f6729c15e1044dd954/
Threat name:
Win32.Trojan.Azorult
Create hunting rule
Status:
Malicious
First seen:
2021-10-18 05:38:29 UTC
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Verdict:
malicious
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+ 2'278 additional samples on MalwareBazaar
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:servhelper family:smokeloader backdoor discovery exploit persistence suricata trojan upx
Link:
https://tria.ge/reports/211018-p8pj7aeehj/
Behaviour
Checks SCSI registry key(s)
Modifies data under HKEY_USERS
Modifies registry key
Runs net.exe
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: LoadsDriver
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Deletes itself
Loads dropped DLL
Modifies file permissions
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Modifies RDP port number used by Windows
Possible privilege escalation attempt
Sets DLL path for service in the registry
UPX packed file
Grants admin privileges
ServHelper
SmokeLoader
suricata: ET MALWARE ServHelper CnC Inital Checkin
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
Malware Config
C2 Extraction:
http://directorycart.com/upload/
http://tierzahnarzt.at/upload/
http://streetofcards.com/upload/
http://ycdfzd.com/upload/
http://successcoachceo.com/upload/
http://uhvu.cn/upload/
http://japanarticle.com/upload/
Dropper Extraction:
https://raw.githubusercontent.com/sqlitey/sqlite/master/speed.ps1
Unpacked files
SH256 hash:
dba8a86324bf04cc9cfd982456c1427340ab41900bee122a01f28b948654465d
MD5 hash:
e5453104d30224ac773e12cdb6aa2e35
SHA1 hash:
4eba4f3a85e3c627d8e06145abf9ca1b4983b128
Link:
https://www.unpac.me/results/24ea4f9d-cef5-44b1-a510-6b9fee0cd8db/
SH256 hash:
991e3c5fb9946ed0490a723a541bda0f36a9b94fff8a68f6729c15e1044dd954
MD5 hash:
2b858c79a8a7a652f8cb60059eb7a95a
SHA1 hash:
e669008a553976d275388ee02e49d5c938a6c27b
Link:
https://www.unpac.me/results/24ea4f9d-cef5-44b1-a510-6b9fee0cd8db/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/991e3c5fb994/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/991e3c5fb9946ed0490a723a541bda0f36a9b94fff8a68f6729c15e1044dd954

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/198219/

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