MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 44693a3461f1c2ebd05ec690f71b5942061ccbadd1a92ffb5d8f6f17f7aa10cb. 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: 7


Intelligence 7 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 44693a3461f1c2ebd05ec690f71b5942061ccbadd1a92ffb5d8f6f17f7aa10cb
SHA3-384 hash: 7cc97c10eee457c75aaee5e1b95b0c80df847b2bdc46dcaf72c6e1486c7a3a509ee9444900028e387890543c80ec6351
SHA1 hash: 31dd661601bc1cf10295698a40bd2021f1f506b4
MD5 hash: 34261e3c5ea360cd924f6f1aa3f948c8
humanhash: nevada-dakota-spaghetti-connecticut
File name:coff.jpg
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:386'560 bytes
First seen:2020-10-16 12:11:17 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:Bof7DeNUSfGgHCU/2McdfoI/ZX0rYfCzuCCMQZN/OdnFQ8+uXNvxsCtrEKGOY:QYV6MorX7qzuC3QHO9FQgd5sCteL
TLSH 0C8412801BD2DD3AC09523B8D83BDC90682278B1CED43B5A4799F52EB876787E40795F
Reporter Marco_Ramilli
Tags:Smoke Loader

Intelligence

File Origin
# of uploads :
1
# of downloads :
78
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/71948/
Detection(s):
PUA.Win.Packer.Upx-48
Create hunting rule

PUA.Win.Packer.Upolyx-12
Create hunting rule

Win.Malware.SmokeLoader-9774773-1
Create hunting rule

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
Forced shutdown of a system process
Unauthorized injection to a system process
Enabling autorun by creating a file
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/493519
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 299209 Sample: coff.jpg Startdate: 16/10/2020 Architecture: WINDOWS Score: 100 69 Malicious sample detected (through community Yara rule) 2->69 71 Antivirus / Scanner detection for submitted sample 2->71 73 Multi AV Scanner detection for submitted file 2->73 75 5 other signatures 2->75 11 coff.exe 14 2->11         started        15 stiwcjws.exe 2->15         started        process3 dnsIp4 63 paste.ee 104.18.48.20, 443, 49732 CLOUDFLARENETUS United States 11->63 55 C:\Users\user\AppData\Local\...\UnpRjogdi.ps1, ASCII 11->55 dropped 17 powershell.exe 24 11->17         started        19 conhost.exe 15->19         started        file5 process6 process7 21 powershell.exe 15 16 17->21         started        24 conhost.exe 17->24         started        dnsIp8 59 172.67.219.133, 443, 49736 CLOUDFLARENETUS United States 21->59 61 paste.ee 21->61 26 MSBuild.exe 21->26         started        process9 signatures10 93 Maps a DLL or memory area into another process 26->93 29 explorer.exe 5 26->29 injected process11 dnsIp12 65 coffeedodo.com 198.177.124.19, 49751, 80 FINALFRONTIERVG United States 29->65 67 www.msftncsi.com 29->67 57 C:\Users\user\AppData\...\stiwcjws.exe, PE32 29->57 dropped 95 Benign windows process drops PE files 29->95 97 Injects code into the Windows Explorer (explorer.exe) 29->97 99 Writes to foreign memory regions 29->99 101 Hides that the sample has been downloaded from the Internet (zone.identifier) 29->101 34 explorer.exe 29->34         started        37 explorer.exe 29->37         started        39 explorer.exe 29->39         started        41 9 other processes 29->41 file13 signatures14 process15 signatures16 77 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 34->77 79 Hijacks the control flow in another process 34->79 81 Changes memory attributes in foreign processes to executable or writable 34->81 43 ozuDBuLBNkfANmXTxJm.exe 34->43 injected 45 ozuDBuLBNkfANmXTxJm.exe 34->45 injected 47 ozuDBuLBNkfANmXTxJm.exe 34->47 injected 83 Writes to foreign memory regions 37->83 85 Maps a DLL or memory area into another process 37->85 87 Creates a thread in another existing process (thread injection) 37->87 49 ozuDBuLBNkfANmXTxJm.exe 37->49 injected 51 sihost.exe 39->51 injected 53 taskhostw.exe 39->53 injected 89 Tries to steal Mail credentials (via file access) 41->89 91 Tries to harvest and steal browser information (history, passwords, etc) 41->91 process17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/44693a3461f1c2ebd05ec690f71b5942061ccbadd1a92ffb5d8f6f17f7aa10cb/
Threat name:
Win32.Trojan.Ymacco
Create hunting rule
Status:
Malicious
First seen:
2020-10-16 12:13:04 UTC
File Type:
PE (Exe)
Extracted files:
51
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=irutundb6hboxuc6y2ipog2ziidbzs5n2gus7625r5xrp55kcdfq._file
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
trojan backdoor family:smokeloader
Link:
https://tria.ge/reports/201016-q4ns7h4rm6/
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://coffeedodo.com/1/
Unpacked files
SH256 hash:
44693a3461f1c2ebd05ec690f71b5942061ccbadd1a92ffb5d8f6f17f7aa10cb
MD5 hash:
34261e3c5ea360cd924f6f1aa3f948c8
SHA1 hash:
31dd661601bc1cf10295698a40bd2021f1f506b4
Link:
https://www.unpac.me/results/fc7928a7-1ee3-4fe5-b9d5-0267beb26394/
SH256 hash:
286e4abf7c845280b8f1da942d6a9c5d27ddb4d7e1506635acbc19d6ffde86e6
MD5 hash:
6b7c25e13f4d10bccf6ccab41d7ce350
SHA1 hash:
7259947bb8b11ea4be28bc0a2a133697d8a79c8b
Link:
https://www.unpac.me/results/fc7928a7-1ee3-4fe5-b9d5-0267beb26394/
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/44693a3461f1c2ebd05ec690f71b5942061ccbadd1a92ffb5d8f6f17f7aa10cb

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:suspicious_packer_section
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/71948/

Comments