MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 448c9cc1d7ec2eeae433ea0f955802adfbb6d97546c99855812c11942021776e. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 448c9cc1d7ec2eeae433ea0f955802adfbb6d97546c99855812c11942021776e
SHA3-384 hash: ebf7d0d1d1b68e119b549d2fe22b4be368bc7cc13890f6c41d6877c2f63827ed1a92fd9dd8c57431ccf0a6c76b8f28b1
SHA1 hash: 0b880a5a3bd054a2bf25e1b07c6e50aeeacd261d
MD5 hash: a803a2f303972e595f62c4f94fdab9a6
humanhash: jig-friend-oklahoma-december
File name:a803a2f303972e595f62c4f94fdab9a6.exe
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:157'696 bytes
First seen:2020-12-29 07:43:34 UTC
Last seen:2020-12-29 10:12:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 2144f9c12885542d4a4f22de64e840e1 (26 x RedLineStealer, 24 x Smoke Loader, 13 x RaccoonStealer)
ssdeep 3072:+t6JYZ/yl393U23qmTIryUHtd6rA+0mC401c9V:+wKZI4a6dHar13J01
Threatray 766 similar samples on MalwareBazaar
TLSH 44F302925639498EF9C0073057F74DBFC8AD70B19EED821A7B8E988DF8763D0D642860
Reporter abuse_ch
Tags:exe Smoke Loader

Intelligence

File Origin
# of uploads :
2
# of downloads :
344
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a803a2f303972e595f62c4f94fdab9a6.exe
Verdict:
Malicious activity
Analysis date:
2020-12-29 07:45:43 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/325edc93-eb58-4c2f-9600-2fdf7596b951

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/109709/
Detection(s):
PUA.Win.Packer.Upolyx-12
Create hunting rule

PUA.Win.Packer.Upx-4
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
DNS request
Connection attempt to an infection source
Deleting of the original file
Enabling autorun by creating a file
Sending an HTTP POST request to an infection source
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.
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/571234
Signature
Antivirus detection for URL or domain
Benign windows process drops PE files
Binary contains a suspicious time stamp
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)
Detected unpacking (overwrites its own PE header)
Found C&C like URL pattern
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
Renames NTDLL to bypass HIPS
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 334679 Sample: t7Gjg291VF.exe Startdate: 29/12/2020 Architecture: WINDOWS Score: 100 99 netvxi.com 2->99 115 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->115 117 Antivirus detection for URL or domain 2->117 119 Multi AV Scanner detection for dropped file 2->119 121 7 other signatures 2->121 12 t7Gjg291VF.exe 1 2->12         started        15 buthwsa 1 2->15         started        18 nethelper.exe 2->18         started        signatures3 process4 file5 135 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 12->135 137 Renames NTDLL to bypass HIPS 12->137 139 Maps a DLL or memory area into another process 12->139 141 Creates a thread in another existing process (thread injection) 12->141 20 explorer.exe 4 12->20 injected 97 C:\Users\user\AppData\Local\Temp\CC4F.tmp, PE32 15->97 dropped 143 Multi AV Scanner detection for dropped file 15->143 145 Machine Learning detection for dropped file 15->145 147 Checks if the current machine is a virtual machine (disk enumeration) 15->147 149 Detected unpacking (changes PE section rights) 18->149 151 Detected unpacking (overwrites its own PE header) 18->151 signatures6 process7 dnsIp8 101 vtdilet.com 20->101 103 79.110.52.117, 80 V4ESCROW-ASRO Romania 20->103 105 4 other IPs or domains 20->105 83 C:\Users\user\AppData\Roaming\buthwsa, PE32 20->83 dropped 85 C:\Users\user\AppData\Local\Temp\4135.exe, PE32 20->85 dropped 87 C:\Users\user\...\buthwsa:Zone.Identifier, ASCII 20->87 dropped 123 Benign windows process drops PE files 20->123 125 Deletes itself after installation 20->125 127 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->127 25 4135.exe 19 20->25         started        file9 signatures10 process11 dnsIp12 109 95.181.152.100, 49711, 49715, 49716 MSKHOSTRU Russian Federation 25->109 111 gxd3fp7fe7cac6jzn2sac.online 95.181.152.177, 49709, 49710, 49713 MSKHOSTRU Russian Federation 25->111 113 192.168.2.1 unknown unknown 25->113 93 C:\Users\user\AppData\...\nethelper[1].dll, PE32 25->93 dropped 95 C:\ProgramData95etHelper\...\nethelper.dll, PE32 25->95 dropped 131 Multi AV Scanner detection for dropped file 25->131 133 Machine Learning detection for dropped file 25->133 30 cmd.exe 1 25->30         started        32 cmd.exe 1 25->32         started        34 cmd.exe 1 25->34         started        36 cmd.exe 1 25->36         started        file13 signatures14 process15 process16 38 rundll32.exe 15 30->38         started        43 conhost.exe 30->43         started        45 conhost.exe 32->45         started        47 timeout.exe 1 32->47         started        49 conhost.exe 34->49         started        51 reg.exe 1 1 34->51         started        53 conhost.exe 36->53         started        55 reg.exe 1 1 36->55         started        dnsIp17 107 udre3kvzatwrx6ues4p2u.top 193.38.55.37, 49712, 49758, 49825 SERVERIUS-ASNL Russian Federation 38->107 89 C:\Users\user\AppData\Local\...\nethelper.exe, PE32 38->89 dropped 91 C:\Users\user\AppData\...\nethelper[1].info, PE32 38->91 dropped 129 System process connects to network (likely due to code injection or exploit) 38->129 57 cmd.exe 1 38->57         started        59 cmd.exe 1 38->59         started        61 cmd.exe 1 38->61         started        63 3 other processes 38->63 file18 signatures19 process20 process21 65 conhost.exe 57->65         started        67 schtasks.exe 1 57->67         started        69 conhost.exe 59->69         started        71 schtasks.exe 1 59->71         started        73 conhost.exe 61->73         started        75 schtasks.exe 1 61->75         started        77 conhost.exe 63->77         started        79 schtasks.exe 63->79         started        81 2 other processes 63->81
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/448c9cc1d7ec2eeae433ea0f955802adfbb6d97546c99855812c11942021776e/
Threat name:
Win32.Trojan.Zenpack
Create hunting rule
Status:
Malicious
First seen:
2020-12-29 01:11:08 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Verdict:
suspicious
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Smoke Loader
+ 756 additional samples on MalwareBazaar
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader backdoor trojan upx
Link:
https://tria.ge/reports/201229-2tcb6hjv6j/
Behaviour
Checks SCSI registry key(s)
Delays execution with timeout.exe
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Program crash
Deletes itself
Loads dropped DLL
Executes dropped EXE
UPX packed file
SmokeLoader
Suspicious use of NtCreateProcessExOtherParentProcess
Malware Config
C2 Extraction:
http://vtdilet.com/upload/
http://netvxi.com/upload/
http://tinnys.monster/upload/
Unpacked files
SH256 hash:
448c9cc1d7ec2eeae433ea0f955802adfbb6d97546c99855812c11942021776e
MD5 hash:
a803a2f303972e595f62c4f94fdab9a6
SHA1 hash:
0b880a5a3bd054a2bf25e1b07c6e50aeeacd261d
Link:
https://www.unpac.me/results/956a5805-fa6f-47c0-b164-b2ab91f1f480/
SH256 hash:
ab1e6861804213053ebd5fe77084774dfe89c7fe1cd6e2b7f327cb5fcea0999f
MD5 hash:
0bbc03e705b860517fc58229ccc4a13a
SHA1 hash:
f25e4634c26ab640fc9693048796ab1cd7571ceb
Link:
https://www.unpac.me/results/956a5805-fa6f-47c0-b164-b2ab91f1f480/
SH256 hash:
6f2184dfe083c769ca14dc0cbfee5e2615b180aff2e58c6552a79c11a27c0e91
MD5 hash:
fd3cb401704fd1d4070139d45569b743
SHA1 hash:
6dfad0f23deaae5a3b12e7f90217d9f8a8376509
Link:
https://www.unpac.me/results/956a5805-fa6f-47c0-b164-b2ab91f1f480/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/448c9cc1d7ec2eeae433ea0f955802adfbb6d97546c99855812c11942021776e

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/
Rule name:win_smokeloader_a2
Create hunting rule
Author:pnx

File information

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

Web download

Smoke Loader

Executable exe 448c9cc1d7ec2eeae433ea0f955802adfbb6d97546c99855812c11942021776e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/943588/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/109709/

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