MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef0d3b336aeef7f0a0aeb78ec08f1f20592d8006bcbe3fbb559e18aebcf060a3. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef0d3b336aeef7f0a0aeb78ec08f1f20592d8006bcbe3fbb559e18aebcf060a3
SHA3-384 hash: fb49e2ff7a290263235c343163e08e8fe16da4c83ae1216194d1bb4538845811a9e5bfd6343c395f3d5f7a0da8eadf78
SHA1 hash: 4a1e5e5c188ef1e8a3e5bf7fa7db17f0307c6912
MD5 hash: 65fd5caa0beaf2c6915e5b05004e5ba8
humanhash: jersey-five-lactose-west
File name:65fd5caa0beaf2c6915e5b05004e5ba8.exe
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:306'688 bytes
First seen:2021-12-09 15:45:11 UTC
Last seen:2021-12-09 23:20:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 1e7f53cbc09c74d2d76a753a16b82f15 (2 x Smoke Loader, 1 x ArkeiStealer, 1 x CryptBot)
ssdeep 6144:hLkR/cdt1kquusp4uIPGjzO5qnfhtc52IQ8:hwRcOqubp4uI+jzOw5tcRD
Threatray 4'071 similar samples on MalwareBazaar
TLSH T17864AD00BBA0D435F5B712F84979A3ADA93E79B2AB2490CB62D116EE17346D0DD7031B
File icon (PE):PE icon
dhash icon b2dacaaecee6baa6 (23 x RedLineStealer, 22 x Stop, 13 x Smoke Loader)
Reporter abuse_ch
Tags:Dofoil exe Smoke Loader

Intelligence

File Origin
# of uploads :
2
# of downloads :
312
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
65fd5caa0beaf2c6915e5b05004e5ba8.exe
Verdict:
No threats detected
Analysis date:
2021-12-09 16:23:40 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/1bcb0671-6e0a-4b7a-8525-4ee23b930241

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/212924/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware1.23269.31600.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Searching for synchronization primitives
Reading critical registry keys
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Query of malicious DNS domain
Unauthorized injection to a system process
Enabling autorun by creating a file
Sending an HTTP POST request to an infection source
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/1465/overview
Behaviour
MalwareBazaar
MeasuringTime
SystemUptime
EvasionQueryPerformanceCounter
EvasionGetTickCount
CheckCmdLine
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/61b224bd4d8e6f3a5e1c20f2/reports/030fd965-3eb1-4fd4-8e93-ed1645029680/overview
Result
Verdict:
UNKNOWN
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/40f6d4ff-f2d2-4a50-b164-c06b132ae910
Result
Threat name:
Djvu RedLine SmokeLoader Vidar
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/904779
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Antivirus detection for URL or domain
Benign windows process drops PE files
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Checks if the current machine is a virtual machine (disk enumeration)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to infect the boot sector
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 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
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
PE file has nameless sections
Query firmware table information (likely to detect VMs)
Sigma detected: Copying Sensitive Files with Credential Data
Sigma detected: MSHTA Spawning Windows Shell
Sigma detected: Suspicious MSHTA Process Patterns
Sigma detected: Suspicious Script Execution From Temp Folder
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)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to evade analysis by execution special instruction which cause usermode exception
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected Djvu Ransomware
Yara detected RedLine Stealer
Yara detected SmokeLoader
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 537261 Sample: qK5aU8wSys.exe Startdate: 09/12/2021 Architecture: WINDOWS Score: 100 74 tzgl.org 2->74 76 mstdn.social 2->76 78 3 other IPs or domains 2->78 88 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->88 90 Antivirus detection for URL or domain 2->90 92 Yara detected Vidar 2->92 94 13 other signatures 2->94 14 qK5aU8wSys.exe 2->14         started        17 udswgsd 2->17         started        19 B17B.exe 2->19         started        signatures3 process4 signatures5 126 Detected unpacking (changes PE section rights) 14->126 128 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 14->128 130 Maps a DLL or memory area into another process 14->130 21 explorer.exe 14 14->21 injected 132 Machine Learning detection for dropped file 17->132 134 Checks if the current machine is a virtual machine (disk enumeration) 17->134 136 Creates a thread in another existing process (thread injection) 17->136 process6 dnsIp7 82 amogohuigotuli.at 21->82 84 unic11m.top 37.0.10.226, 49781, 49784, 80 WKD-ASIE Netherlands 21->84 86 10 other IPs or domains 21->86 64 C:\Users\user\AppData\Roaming\udswgsd, PE32 21->64 dropped 66 C:\Users\user\AppData\Local\TempF59.exe, PE32 21->66 dropped 68 C:\Users\user\AppData\Local\Temp\DEBE.exe, PE32 21->68 dropped 70 5 other malicious files 21->70 dropped 96 System process connects to network (likely due to code injection or exploit) 21->96 98 Benign windows process drops PE files 21->98 100 Deletes itself after installation 21->100 102 Hides that the sample has been downloaded from the Internet (zone.identifier) 21->102 26 C62D.exe 2 21->26         started        29 DEBE.exe 2 21->29         started        31 EF59.exe 2 21->31         started        33 6 other processes 21->33 file8 signatures9 process10 signatures11 104 Multi AV Scanner detection for dropped file 26->104 106 Detected unpacking (changes PE section rights) 26->106 108 Query firmware table information (likely to detect VMs) 26->108 124 3 other signatures 26->124 110 Tries to detect sandboxes and other dynamic analysis tools (window names) 29->110 112 Machine Learning detection for dropped file 29->112 114 Tries to evade analysis by execution special instruction which cause usermode exception 29->114 116 Detected unpacking (overwrites its own PE header) 31->116 118 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 33->118 120 Tries to steal Mail credentials (via file / registry access) 33->120 122 Tries to harvest and steal browser information (history, passwords, etc) 33->122 35 B17B.exe 1 15 33->35         started        39 mshta.exe 33->39         started        process12 dnsIp13 80 api.2ip.ua 77.123.139.190, 443, 49791, 49805 VOLIA-ASUA Ukraine 35->80 62 C:\Users\user\AppData\Local\...\B17B.exe, PE32 35->62 dropped 41 B17B.exe 35->41         started        43 icacls.exe 35->43         started        45 cmd.exe 39->45         started        file14 process15 file16 48 B17B.exe 41->48         started        72 C:\Users\user\AppData\Local\...\mFDgzJ35.ExE, PE32 45->72 dropped 50 mFDgzJ35.ExE 45->50         started        52 conhost.exe 45->52         started        54 taskkill.exe 45->54         started        process17 process18 56 mshta.exe 50->56         started        process19 58 cmd.exe 56->58         started        process20 60 conhost.exe 58->60         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef0d3b336aeef7f0a0aeb78ec08f1f20592d8006bcbe3fbb559e18aebcf060a3/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2021-12-09 15:46:09 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
27 of 28 (96.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=54gtwm3k5337bifow6hmbdy7ebms3aagxs7d7o2vtymk5phqmcrq._file
Verdict:
malicious
Label(s):
ryuk
Create hunting rule
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+ 4'061 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:raccoon family:smokeloader family:vidar botnet:1090 botnet:eab89db8f8e51b4a23c6cffb85db8684a0f53e06 backdoor collection discovery evasion spyware stealer suricata trojan
Link:
https://tria.ge/reports/211209-s7lzfsdgfr/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Delays execution with timeout.exe
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses 2FA software files, possible credential harvesting
Accesses Microsoft Outlook profiles
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks whether UAC is enabled
Checks BIOS information in registry
Deletes itself
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Vidar Stealer
Raccoon
SmokeLoader
Vidar
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
Malware Config
C2 Extraction:
http://srtuiyhuali.at/
http://fufuiloirtu.com/
http://amogohuigotuli.at/
http://novohudosovu.com/
http://brutuilionust.com/
http://bubushkalioua.com/
http://dumuilistrati.at/
http://verboliatsiaeeees.com/
https://mstdn.social/@sergeev43
https://koyu.space/@sergeev45
Unpacked files
SH256 hash:
f12298a85ad18a55421deada8eb23f2a519a606439eedc2f9a60cd1ec8494914
MD5 hash:
b759df8ed45d16518bd54eb6f3b996ca
SHA1 hash:
ed63cdc2a64db6902b2a94e94020ff7db52c7691
Link:
https://www.unpac.me/results/056fbaad-9906-4653-a906-e58fe529211c/
SH256 hash:
ef0d3b336aeef7f0a0aeb78ec08f1f20592d8006bcbe3fbb559e18aebcf060a3
MD5 hash:
65fd5caa0beaf2c6915e5b05004e5ba8
SHA1 hash:
4a1e5e5c188ef1e8a3e5bf7fa7db17f0307c6912
Link:
https://www.unpac.me/results/056fbaad-9906-4653-a906-e58fe529211c/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/ef0d3b336aee/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/ef0d3b336aeef7f0a0aeb78ec08f1f20592d8006bcbe3fbb559e18aebcf060a3

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 ef0d3b336aeef7f0a0aeb78ec08f1f20592d8006bcbe3fbb559e18aebcf060a3

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/212924/
  
URLhaus
https://urlhaus.abuse.ch/url/1869873/
  
Delivery method
Distributed via web download

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