MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2aa3c6dd94498a7a640f8c4aef123024be8edc16d77da79f84354339aff235b3. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2aa3c6dd94498a7a640f8c4aef123024be8edc16d77da79f84354339aff235b3
SHA3-384 hash: b9167a0d0393cf4344a07c16bf2af4f2da76791cb179b85864cd0721b02bbbd2963f774a586bd0d280b4a0ee8d16a00c
SHA1 hash: 52187132691a3bdc920de32c11af1210286cc309
MD5 hash: 5417909356a2789a9cfb1dccca43cc96
humanhash: salami-fillet-item-bacon
File name:file
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:416'256 bytes
First seen:2023-11-08 07:33:20 UTC
Last seen:2023-11-08 14:39:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:vV2wmKrJ6Xki/jcrZpxjVHZEVCGRxGFCMMm6u:vV1RMkUmppJ+RHCBMmX
Threatray 2 similar samples on MalwareBazaar
TLSH T1E594E0F412EA7A9AD36C07FB9C9501A02A738D40B308B1D4DE7A63FDA315AD758F1361
TrID 35.4% (.EXE) Win64 Executable (generic) (10523/12/4)
22.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.1% (.EXE) Win32 Executable (generic) (4505/5/1)
6.9% (.ICL) Windows Icons Library (generic) (2059/9)
6.8% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter andretavare5
Tags:exe Smoke Loader


Avatar
andretavare5
Sample downloaded from http://194.49.94.67/files/random.exe

Intelligence

File Origin
# of uploads :
7
# of downloads :
319
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.4809.25679.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Creating a file
DNS request
Sending a custom TCP request
Connecting to a non-recommended domain
Sending an HTTP GET request
Creating a process from a recently created file
Creating a file in the %temp% subdirectories
Running batch commands
Blocking the User Account Control
Query of malicious DNS domain
Sending a TCP request to an infection source
Unauthorized injection to a recently created process
Downloading the file
Adding exclusions to Windows Defender
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Enabling autorun by creating a file
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/654b39f0993fbf888b69ce07/reports/9dc61763-f47f-4928-ab0c-b3273deb3915/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/2aa3c6dd94498a7a640f8c4aef123024be8edc16d77da79f84354339aff235b3
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:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/03e40a63-1591-49ca-b066-e94c8e6c4006
Result
Threat name:
RedLine, SmokeLoader, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1338796
Signature
.NET source code contains potential unpacker
.NET source code contains process injector
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
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)
Contains functionality to inject code into remote processes
Creates a thread in another existing process (thread injection)
Creates HTML files with .exe extension (expired dropper behavior)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Disable Windows Defender real time protection (registry)
Disables UAC (registry)
Disables Windows Defender (deletes autostart)
Drops script or batch files to the startup folder
Found evasive API chain (may stop execution after checking computer name)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Injects a PE file into a foreign processes
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
Modifies Group Policy settings
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
Query firmware table information (likely to detect VMs)
Sigma detected: Drops script at startup location
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected RedLine Stealer
Yara detected SmokeLoader
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1338796 Sample: file.exe Startdate: 08/11/2023 Architecture: WINDOWS Score: 100 181 Multi AV Scanner detection for domain / URL 2->181 183 Found malware configuration 2->183 185 Malicious sample detected (through community Yara rule) 2->185 187 20 other signatures 2->187 10 file.exe 2 4 2->10         started        13 cmd.exe 1 2->13         started        15 svchost.exe 2->15         started        17 5 other processes 2->17 process3 dnsIp4 193 Writes to foreign memory regions 10->193 195 Allocates memory in foreign processes 10->195 197 Adds a directory exclusion to Windows Defender 10->197 199 2 other signatures 10->199 20 CasPol.exe 15 65 10->20         started        25 powershell.exe 23 10->25         started        27 conhost.exe 13->27         started        29 WerFault.exe 15->29         started        125 173.222.228.121 AKAMAI-ASUS United States 17->125 127 127.0.0.1 unknown unknown 17->127 signatures5 process6 dnsIp7 129 95.214.26.28 CMCSUS Germany 20->129 131 107.167.110.211 OPERASOFTWAREUS United States 20->131 133 20 other IPs or domains 20->133 93 C:\Users\...\pPJ2v98e55q2GfY9JmaYQhSX.exe, PE32 20->93 dropped 95 C:\Users\...\Z3KH08ZPCcyztmHu1shi56s3.exe, PE32 20->95 dropped 97 C:\Users\...\Z2u9l7IEaPvsaYCMTCrft9Fh.exe, PE32 20->97 dropped 99 39 other malicious files 20->99 dropped 189 Drops script or batch files to the startup folder 20->189 191 Creates HTML files with .exe extension (expired dropper behavior) 20->191 31 dpZ0r5ikih3gyO8HlrLDKrEy.exe 20->31         started        36 ntCERA5LAvXvzzF9cscPhDem.exe 20->36         started        38 mnDIxAWBFGLVSqiwRrRrYDrN.exe 20->38         started        42 12 other processes 20->42 40 conhost.exe 25->40         started        file8 signatures9 process10 dnsIp11 149 4 other IPs or domains 31->149 75 C:\Users\...\putfzY1fhYlGvL1ta_DWFuso.exe, PE32 31->75 dropped 77 C:\Users\...\mDxJiGt2RvtGE8dvqYi4gpoF.exe, PE32 31->77 dropped 87 20 other malicious files 31->87 dropped 159 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 31->159 161 Query firmware table information (likely to detect VMs) 31->161 163 Tries to detect sandboxes and other dynamic analysis tools (window names) 31->163 177 4 other signatures 31->177 139 87.240.129.133 VKONTAKTE-SPB-AShttpvkcomRU Russian Federation 36->139 141 95.142.206.0 VKONTAKTE-SPB-AShttpvkcomRU Russian Federation 36->141 151 14 other IPs or domains 36->151 79 C:\Users\...\zWeyqDqU3VbJdLRI6hfnogDl.exe, PE32 36->79 dropped 81 C:\Users\...\yJzMMnXLVpAzpwuZPgrdJhnw.exe, PE32 36->81 dropped 83 C:\Users\...\yI4l7I5e6YwWwJZA_quCDS03.exe, PE32 36->83 dropped 89 20 other malicious files 36->89 dropped 165 Creates HTML files with .exe extension (expired dropper behavior) 36->165 167 Disables Windows Defender (deletes autostart) 36->167 169 Modifies Group Policy settings 36->169 85 C:\Users\user\AppData\Local\...\is-RCIOT.tmp, PE32 38->85 dropped 44 is-RCIOT.tmp 38->44         started        143 5.182.38.138 VMAGE-ASRU Russian Federation 42->143 145 149.154.167.99 TELEGRAMRU United Kingdom 42->145 147 116.203.165.60 HETZNER-ASDE Germany 42->147 91 18 other files (13 malicious) 42->91 dropped 171 Detected unpacking (changes PE section rights) 42->171 173 Detected unpacking (overwrites its own PE header) 42->173 175 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 42->175 179 7 other signatures 42->179 48 is-0JJCI.tmp 42->48         started        50 is-I569I.tmp 42->50         started        52 YewhXuElr6qFBXy3OszkfrDW.exe 42->52         started        54 6 other processes 42->54 file12 signatures13 process14 file15 107 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 44->107 dropped 109 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 44->109 dropped 119 21 other files (20 malicious) 44->119 dropped 201 Uses schtasks.exe or at.exe to add and modify task schedules 44->201 56 IronPython.exe 44->56         started        59 schtasks.exe 44->59         started        61 IronPython.exe 44->61         started        111 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 48->111 dropped 113 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 48->113 dropped 121 21 other files (20 malicious) 48->121 dropped 115 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 50->115 dropped 117 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 50->117 dropped 123 20 other files (19 malicious) 50->123 dropped 203 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 52->203 205 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 52->205 207 Maps a DLL or memory area into another process 52->207 209 2 other signatures 52->209 64 explorer.exe 52->64 injected 67 conhost.exe 54->67         started        69 conhost.exe 54->69         started        71 timeout.exe 54->71         started        signatures16 process17 dnsIp18 101 C:\ProgramData\...\VideoSelector.exe, PE32 56->101 dropped 73 conhost.exe 59->73         started        135 51.159.66.125 OnlineSASFR France 61->135 137 185.141.63.172 BELCLOUDBG Bulgaria 61->137 103 C:\Users\user\AppData\Roaming\srifdif, PE32 64->103 dropped 105 C:\Users\user\AppData\Local\Temp\B876.exe, PE32 64->105 dropped 153 System process connects to network (likely due to code injection or exploit) 64->153 155 Benign windows process drops PE files 64->155 157 Hides that the sample has been downloaded from the Internet (zone.identifier) 64->157 file19 signatures20 process21
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/2aa3c6dd94498a7a640f8c4aef123024be8edc16d77da79f84354339aff235b3
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2aa3c6dd94498a7a640f8c4aef123024be8edc16d77da79f84354339aff235b3/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2023-11-08 07:34:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fkr4nxmujgfhuzaprrfo6erqes7i5xaw2562ph4egvbttl7sgwzq._file
Verdict:
malicious
Similar samples:
9cd45c2dec3640ea0a345bbe5f21987485e91a2ab5cb605b0f30a741d2cb7b38
Smoke Loader
9f9bbdf52e05dd9de10f36aac171224ddded63a05a2e0bbae484353bef4924cb
Smoke Loader
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:dcrat family:glupteba family:smokeloader botnet:pub1 backdoor discovery dropper evasion infostealer loader persistence rat rootkit trojan upx
Link:
https://tria.ge/reports/231108-jd3wfaha98/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Creates scheduled task(s)
Modifies data under HKEY_USERS
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: LoadsDriver
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Uses Task Scheduler COM API
Enumerates physical storage devices
Checks for VirtualBox DLLs, possible anti-VM trick
Drops file in Windows directory
Launches sc.exe
Suspicious use of SetThreadContext
Adds Run key to start application
Checks installed software on the system
Checks whether UAC is enabled
Legitimate hosting services abused for malware hosting/C2
Manipulates WinMon driver.
Manipulates WinMonFS driver.
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
UPX packed file
Windows security modification
Downloads MZ/PE file
Drops file in Drivers directory
Modifies Windows Firewall
Possible attempt to disable PatchGuard
Modifies boot configuration data using bcdedit
DcRat
Glupteba
Glupteba payload
SmokeLoader
UAC bypass
Windows security bypass
Malware Config
C2 Extraction:
http://host-file-host6.com/
http://host-host-file8.com/
Unpacked files
SH256 hash:
535afcc42b15018ce1e1aa5c16c7a42ba23a76f6093d0cb1e563e2400554640f
MD5 hash:
c34c3c9b07dee212329adde1a991c92b
SHA1 hash:
f75fbb549cc903dcca05b0985f0827f85ceec2c9
Link:
https://www.unpac.me/results/954621c4-659c-48af-9ccd-1a2cc92162de/
SH256 hash:
2aa3c6dd94498a7a640f8c4aef123024be8edc16d77da79f84354339aff235b3
MD5 hash:
5417909356a2789a9cfb1dccca43cc96
SHA1 hash:
52187132691a3bdc920de32c11af1210286cc309
Link:
https://www.unpac.me/results/954621c4-659c-48af-9ccd-1a2cc92162de/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2aa3c6dd9449/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/2aa3c6dd94498a7a640f8c4aef123024be8edc16d77da79f84354339aff235b3

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by
  
URLhaus
https://urlhaus.abuse.ch/url/2728891/

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