MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 73b3b6f6389ea1919ab56c61cfb13a0f5e0778bf49dbda7a42652c42cbc71ab2. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments

SHA256 hash: 73b3b6f6389ea1919ab56c61cfb13a0f5e0778bf49dbda7a42652c42cbc71ab2
SHA3-384 hash: e21959e3a670ea3205ba5c19f2b825258fdb5235127ad7c56e1483d5647b65c802fdbfeec5cb9c766ed723829a5ba1ba
SHA1 hash: 2d7abfbff3dd2c12772268f3977676e25d727065
MD5 hash: 9419d53b0db3f157a6011c8657ba118d
humanhash: black-jersey-paris-victor
File name:road.jpg
Download: download sample
Signature Smoke Loader
File size:386'560 bytes
First seen:2020-10-16 12:17:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 712f4a29c405ecb576101d367b2180fb (14 x Smoke Loader, 2 x AZORult, 1 x Formbook)
ssdeep 6144:iof7DeNUSfGgHCU/2McdfoI/ZX0rYfCzuCCMQZN/OdnFQ8+uXNvxsCtrEK/WE:BYV6MorX7qzuC3QHO9FQgd5sCtH3
Threatray 55 similar samples on MalwareBazaar
TLSH 768412801ED2DD3AC09523B8D83BDC90682278B1CED43B5A4799F52EB876787E40795F
Reporter Marco_Ramilli
Tags:Smoke Loader

Intelligence


File Origin
# of uploads :
1
# of downloads :
75
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
DNS request
Sending a custom TCP request
Creating a file
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Launching a process
Deleting a recently created file
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Connection attempt
Sending an HTTP POST request
Reading critical registry keys
Setting browser functions hooks
Stealing user critical data
Unauthorized injection to a system process
Enabling autorun by creating a file
Unauthorized injection to a browser process
Result
Threat name:
SmokeLoader
Detection:
malicious
Classification:
troj.spyw.evad.mine
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Benign windows process drops PE files
Binary is likely a compiled AutoIt script file
Bypasses PowerShell execution policy
Changes memory attributes in foreign processes to executable or writable
Connects to a pastebin service (likely for C&C)
Creates a thread in another existing process (thread injection)
Found strings related to Crypto-Mining
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hijacks the control flow in another process
Injects code into the Windows Explorer (explorer.exe)
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
Tries to harvest and steal browser information (history, 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: 299224 Sample: road.jpg Startdate: 16/10/2020 Architecture: WINDOWS Score: 100 70 Malicious sample detected (through community Yara rule) 2->70 72 Antivirus / Scanner detection for submitted sample 2->72 74 Multi AV Scanner detection for submitted file 2->74 76 5 other signatures 2->76 11 road.exe 14 2->11         started        16 rwtwhbis.exe 2->16         started        18 svchost.exe 2->18         started        process3 dnsIp4 68 paste.ee 172.67.219.133, 443, 49719 CLOUDFLARENETUS United States 11->68 58 C:\Users\user\AppData\Local\...\ZHjFzCsCm.ps1, ASCII 11->58 dropped 102 Binary is likely a compiled AutoIt script file 11->102 20 powershell.exe 24 11->20         started        22 conhost.exe 16->22         started        file5 signatures6 process7 process8 24 powershell.exe 15 16 20->24         started        27 conhost.exe 20->27         started        dnsIp9 64 104.18.49.20, 443, 49723 CLOUDFLARENETUS United States 24->64 66 paste.ee 24->66 29 MSBuild.exe 24->29         started        process10 signatures11 104 Maps a DLL or memory area into another process 29->104 32 explorer.exe 5 29->32 injected process12 dnsIp13 60 roadtaxmaster.com 173.254.29.42, 49736, 80 UNIFIEDLAYER-AS-1US United States 32->60 62 www.msftncsi.com 32->62 56 C:\Users\user\AppData\...\rwtwhbis.exe, PE32 32->56 dropped 78 Benign windows process drops PE files 32->78 80 Injects code into the Windows Explorer (explorer.exe) 32->80 82 Writes to foreign memory regions 32->82 84 Hides that the sample has been downloaded from the Internet (zone.identifier) 32->84 37 explorer.exe 32->37         started        40 explorer.exe 32->40         started        42 explorer.exe 32->42         started        44 9 other processes 32->44 file14 signatures15 process16 signatures17 86 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 37->86 88 Hijacks the control flow in another process 37->88 90 Changes memory attributes in foreign processes to executable or writable 37->90 46 SkivNrxEWYtZqX.exe 37->46 injected 48 SkivNrxEWYtZqX.exe 37->48 injected 50 SkivNrxEWYtZqX.exe 37->50 injected 92 Writes to foreign memory regions 40->92 94 Maps a DLL or memory area into another process 40->94 96 Creates a thread in another existing process (thread injection) 40->96 52 sihost.exe 42->52 injected 54 taskhostw.exe 42->54 injected 98 Tries to steal Mail credentials (via file access) 44->98 100 Tries to harvest and steal browser information (history, passwords, etc) 44->100 process18
Threat name:
Win32.Trojan.Povertel
Status:
Malicious
First seen:
2020-10-14 13:56:02 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Result
Malware family:
smokeloader
Score:
  10/10
Tags:
trojan backdoor family:smokeloader
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Drops file in System32 directory
Suspicious use of SetThreadContext
Maps connected drives based on registry
Blacklisted process makes network request
SmokeLoader
Malware Config
C2 Extraction:
http://roadtaxmaster.com/1/
Unpacked files
SH256 hash:
73b3b6f6389ea1919ab56c61cfb13a0f5e0778bf49dbda7a42652c42cbc71ab2
MD5 hash:
9419d53b0db3f157a6011c8657ba118d
SHA1 hash:
2d7abfbff3dd2c12772268f3977676e25d727065
SH256 hash:
c75fa352748e9297032f1765a0fc8765ad203e6c46f9eb93277664d1fda05197
MD5 hash:
f1a64a9dc1d3bbc475221d623caa544d
SHA1 hash:
ac7e4860d6e73fbc4e773abcf4298125ba0506ac
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:Keylog_bin_mem
Author:James_inthe_box
Description:Contains Keylog
Rule name:suspicious_packer_section
Author:@j0sm1
Description:The packer/protector section names/keywords
Reference:http://www.hexacorn.com/blog/2012/10/14/random-stats-from-1-2m-samples-pe-section-names/

File information


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

Comments