MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef44c393b607093cbb85fee733531b41f56aa03d56d5fd3d4c60e1c0bd3f51dd. 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: 16


Intelligence 16 IOCs YARA 4 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef44c393b607093cbb85fee733531b41f56aa03d56d5fd3d4c60e1c0bd3f51dd
SHA3-384 hash: 4c46622048bdd5a5f9a9fa1727f20f3a5d5ad5ce6edfa3c06ece2d978d5e96267743d8ca723d6c52bb53ac1b80eeac07
SHA1 hash: b5e2e532ef2813e0cdbc3e124d7dd90e41495ec0
MD5 hash: 1bcb9d8ba02bdbe8dcdb08f369228e0b
humanhash: magazine-butter-failed-alaska
File name:1bcb9d8ba02bdbe8dcdb08f369228e0b
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:329'728 bytes
First seen:2024-06-25 13:52:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 4345ed51b7bcdd336807a3f5f786979a (2 x Smoke Loader)
ssdeep 3072:cqWLOU/jAxIOG+1o1VFbBFeRC5xat4LtzCX1Ek1EJxTEqS:cBLd/jwFnGNBFau68KNH
TLSH T14264E71366E1BC21EBA24F385F3DD6EC3B2FB8626E62434AD1582F1B19716B1C553312
TrID 67.1% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.2% (.EXE) Win32 Executable (generic) (4504/4/1)
2.4% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 0002020001020808 (1 x Smoke Loader)
Reporter zbetcheckin
Tags:32 exe Smoke Loader

Intelligence

File Origin
# of uploads :
1
# of downloads :
312
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ef44c393b607093cbb85fee733531b41f56aa03d56d5fd3d4c60e1c0bd3f51dd.exe
Verdict:
Malicious activity
Analysis date:
2024-06-25 13:57:01 UTC
Tags:
loader smokeloader
Link:
https://app.any.run/tasks/b8ffb088-03fe-486b-8714-6e313fe3776b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.2122.10248.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=667acbf75fec1bb84f85ce2cwin10vpnfull_triage
Tags:
Zpack
Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
epmicrosoft_visual_cc fingerprint microsoft_visual_cc
Link:
https://www.filescan.io/uploads/667acbc70bf5978c0b124329/reports/1f91a833-56ce-402c-8c7f-129042d46951/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/ef44c393b607093cbb85fee733531b41f56aa03d56d5fd3d4c60e1c0bd3f51dd
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/e31ddc18-0735-4f5d-ba60-44c9a547c4d8
Result
Threat name:
LummaC, SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1462446
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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)
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Detected unpacking (changes PE section rights)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
LummaC encrypted strings found
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
Sample uses string decryption to hide its real strings
Snort IDS alert for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected LummaC Stealer
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1462446 Sample: 1NP1n2Y7tE.exe Startdate: 25/06/2024 Architecture: WINDOWS Score: 100 31 publicitycharetew.shop 2->31 33 movlat.com 2->33 35 9 other IPs or domains 2->35 49 Snort IDS alert for network traffic 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 9 other signatures 2->55 8 1NP1n2Y7tE.exe 2->8         started        11 wvtfdiu 2->11         started        13 explorer.exe 19 128 2->13         started        signatures3 process4 signatures5 63 Detected unpacking (changes PE section rights) 8->63 65 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->65 67 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 8->67 77 3 other signatures 8->77 15 explorer.exe 29 5 8->15 injected 69 Antivirus detection for dropped file 11->69 71 Multi AV Scanner detection for dropped file 11->71 73 Maps a DLL or memory area into another process 11->73 75 Query firmware table information (likely to detect VMs) 13->75 process6 dnsIp7 37 movlat.com 201.191.99.134, 49724, 49725, 49726 InstitutoCostarricensedeElectricidadyTelecomCR Costa Rica 15->37 39 bingowin.bet 167.172.228.146, 49730, 80 DIGITALOCEAN-ASNUS United States 15->39 25 C:\Users\user\AppData\Roaming\wvtfdiu, PE32 15->25 dropped 27 C:\Users\user\AppData\Local\Temp\AE6C.exe, PE32 15->27 dropped 29 C:\Users\user\...\wvtfdiu:Zone.Identifier, ASCII 15->29 dropped 41 System process connects to network (likely due to code injection or exploit) 15->41 43 Benign windows process drops PE files 15->43 45 Deletes itself after installation 15->45 47 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->47 20 AE6C.exe 15->20         started        23 WerFault.exe 21 15->23         started        file8 signatures9 process10 signatures11 57 Multi AV Scanner detection for dropped file 20->57 59 Switches to a custom stack to bypass stack traces 20->59 61 LummaC encrypted strings found 20->61
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ef44c393b607093cbb85fee733531b41f56aa03d56d5fd3d4c60e1c0bd3f51dd
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef44c393b607093cbb85fee733531b41f56aa03d56d5fd3d4c60e1c0bd3f51dd/
Threat name:
Win32.Trojan.Smokeloader
Create hunting rule
Status:
Malicious
First seen:
2024-06-25 13:53:05 UTC
File Type:
PE (Exe)
Extracted files:
62
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=55cmhe5wa4etzo4f73ttguy3ih2wvib5k3k72pkmmdq4bpj7khoq._file
Verdict:
malicious
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader botnet:pub1 backdoor trojan
Link:
https://tria.ge/reports/240625-q6ywhstdrc/
Behaviour
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Program crash
Deletes itself
SmokeLoader
Malware Config
C2 Extraction:
http://movlat.com/tmp/
http://llcbc.org/tmp/
http://lindex24.ru/tmp/
http://qeqei.xyz/tmp/
Unpacked files
SH256 hash:
03c794e1c91b6d8a51e7b46c9b42316450c5b6e57a3bb9f33f7c261e776b07dd
MD5 hash:
5c873421393dcf1e53d271e562749bf4
SHA1 hash:
d58de6104195835295038a7dcc04672021bac805
Detections:
SmokeLoaderStage2
Create hunting rule
win_smokeloader_a2
Create hunting rule
Link:
https://www.unpac.me/results/502a1879-e22e-4a87-aa34-91155e237cf3/
Parent samples :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 hash:
ef44c393b607093cbb85fee733531b41f56aa03d56d5fd3d4c60e1c0bd3f51dd
MD5 hash:
1bcb9d8ba02bdbe8dcdb08f369228e0b
SHA1 hash:
b5e2e532ef2813e0cdbc3e124d7dd90e41495ec0
Link:
https://www.unpac.me/results/502a1879-e22e-4a87-aa34-91155e237cf3/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ef44c393b607/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/ef44c393b607093cbb85fee733531b41f56aa03d56d5fd3d4c60e1c0bd3f51dd

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:Windows_Trojan_Generic_2993e5a5
Create hunting rule
Author:Elastic Security

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 ef44c393b607093cbb85fee733531b41f56aa03d56d5fd3d4c60e1c0bd3f51dd

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2905610/
  
URLhaus
https://urlhaus.abuse.ch/url/2905761/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindFirstVolumeW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetStartupInfoA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::WriteConsoleA
KERNEL32.dll::ReadConsoleOutputA
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasExesLengthW
KERNEL32.dll::GetConsoleAliasesW
KERNEL32.dll::GetConsoleTitleW
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA
KERNEL32.dll::SetVolumeMountPointA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameA
WIN_SVC_APICan Manipulate Windows ServicesADVAPI32.dll::EnumDependentServicesW

Comments


Avatar
zbet commented on 2024-06-25 13:52:09 UTC

url : hxxps://comrex.pk/tmp/1.exe