MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ec73ce294407ff3abb67d0b0bcb3871d7c54b6984f3c3783eee05254e0852ff9. 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: 17


Intelligence 17 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ec73ce294407ff3abb67d0b0bcb3871d7c54b6984f3c3783eee05254e0852ff9
SHA3-384 hash: 60aee1beb83a64abf7c3ac0640ac6dba98dd00379a007dfbab1f92bed7e89908bebdcdf480afaf011052ea82d4001b4d
SHA1 hash: 9a449b100aa5de4f3dcb8236007ac0aa7a27f00b
MD5 hash: 96410cb83b262dabb95608c6c26c5233
humanhash: zebra-cold-september-robin
File name:96410cb83b262dabb95608c6c26c5233.exe
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:233'984 bytes
First seen:2024-09-17 14:00:48 UTC
Last seen:2024-09-17 14:28:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash e65a8357ca24d261f7849f444ec396fa (2 x Smoke Loader, 1 x Stealc, 1 x RemcosRAT)
ssdeep 3072:pLoLBpGnKY6VuhizbFRIZ0RMsP7Jo35oCT5+aFVZLwUVZ/csXot4W:pLovWlxhogZBPm
TLSH T139344B4075F1902AF7B765B4C973DDA85A7FB8E2ED72806E3204261E2CF16804947B9F
TrID 46.6% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
25.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
8.5% (.EXE) Win64 Executable (generic) (10523/12/4)
5.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
File icon (PE):PE icon
dhash icon 30ccc688ccb4c860 (1 x Smoke Loader)
Reporter abuse_ch
Tags:exe Smoke Loader

Intelligence

File Origin
# of uploads :
2
# of downloads :
434
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
96410cb83b262dabb95608c6c26c5233.exe
Verdict:
Malicious activity
Analysis date:
2024-09-17 14:04:11 UTC
Tags:
loader smokeloader
Link:
https://app.any.run/tasks/8f0d2a85-81b0-4bb9-9e50-8e62d2c067db

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.5495.10952.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66e98ba3f72de0d131be9371
Tags:
Network Stealth
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
epmicrosoft_visual_cc fingerprint microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/66e98ba2979c2df183856ca0/reports/d3653e53-342d-468d-b0f8-f3f69b468533/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/ec73ce294407ff3abb67d0b0bcb3871d7c54b6984f3c3783eee05254e0852ff9
Result
Verdict:
SUSPICIOUS
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/75e6a939-e350-4bdb-8326-70ab59e3c3b9
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1512534
Signature
AI detected suspicious sample
Antivirus detection for dropped file
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)
Injects code into the Windows Explorer (explorer.exe)
Machine Learning detection for dropped file
Machine Learning detection for sample
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
Performs DNS queries to domains with low reputation
Suricata IDS alerts 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)
Tries to harvest and steal browser information (history, passwords, etc)
Writes to foreign memory regions
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1512534 Sample: BwNKl6G2Rt.exe Startdate: 17/09/2024 Architecture: WINDOWS Score: 100 35 nicetolosv.xyz 2->35 37 olihonols.in.net 2->37 39 3 other IPs or domains 2->39 55 Suricata IDS alerts for network traffic 2->55 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 63 5 other signatures 2->63 8 BwNKl6G2Rt.exe 2->8         started        11 adhcffh 2->11         started        13 wuhcffh 2->13         started        signatures3 61 Performs DNS queries to domains with low reputation 35->61 process4 signatures5 75 Detected unpacking (changes PE section rights) 8->75 77 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 8->77 79 Maps a DLL or memory area into another process 8->79 89 3 other signatures 8->89 15 explorer.exe 68 9 8->15 injected 81 Multi AV Scanner detection for dropped file 11->81 83 Machine Learning detection for dropped file 11->83 85 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 11->85 87 Antivirus detection for dropped file 13->87 process6 dnsIp7 41 epohe.ru 190.147.2.86, 49717, 56697, 56699 TelmexColombiaSACO Colombia 15->41 43 190.156.239.49, 56702, 56703, 56704 TelmexColombiaSACO Colombia 15->43 45 3 other IPs or domains 15->45 27 C:\Users\user\AppData\Roaming\wuhcffh, PE32 15->27 dropped 29 C:\Users\user\AppData\Roaming\adhcffh, PE32 15->29 dropped 31 C:\Users\user\AppData\Local\Temp\AE78.exe, PE32 15->31 dropped 33 2 other malicious files 15->33 dropped 47 System process connects to network (likely due to code injection or exploit) 15->47 49 Benign windows process drops PE files 15->49 51 Injects code into the Windows Explorer (explorer.exe) 15->51 53 3 other signatures 15->53 20 AE78.exe 15->20         started        23 explorer.exe 15->23         started        25 3C53.exe 2 15->25         started        file8 signatures9 process10 signatures11 65 Antivirus detection for dropped file 20->65 67 Detected unpacking (changes PE section rights) 20->67 69 Machine Learning detection for dropped file 20->69 73 5 other signatures 20->73 71 Tries to harvest and steal browser information (history, passwords, etc) 23->71
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ec73ce294407ff3abb67d0b0bcb3871d7c54b6984f3c3783eee05254e0852ff9
Detection:
smokeloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ec73ce294407ff3abb67d0b0bcb3871d7c54b6984f3c3783eee05254e0852ff9/
Threat name:
Win32.Trojan.SmokeLoader
Create hunting rule
Status:
Malicious
First seen:
2024-09-17 14:01:06 UTC
File Type:
PE (Exe)
Extracted files:
66
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5rz44kkea77tvo3h2cylzm4hdv6fjnuyj46dpa7o4bjfjyeff74q._file
Verdict:
malicious
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader botnet:pub2 backdoor discovery trojan
Link:
https://tria.ge/reports/240917-rbjc1sxank/
Behaviour
Checks SCSI registry key(s)
Program crash
System Location Discovery: System Language Discovery
SmokeLoader
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d8d111a2-1b7b-4b42-af20-43259f83696e
Unpacked files
SH256 hash:
ff657d92c05729dfafa1c8f67265111709645a8b5960c6abcc8abd8f8a021e42
MD5 hash:
d152053cd642ce6b071e20f87d4f530a
SHA1 hash:
a14707074b9613b228e0c3b052cbcc142093bfc4
Detections:
SmokeLoaderStage2
Create hunting rule
win_smokeloader_a2
Create hunting rule
Link:
https://www.unpac.me/results/e7d6a359-ff01-433b-a371-c976e8624c95/
Parent samples :
726a67046152f94bf0372b95325f029d834f3bd3ce9246bdd76f03efac45195e
0923186058b76b52069af9fd282af6c98766179cbdd524e4d941e0bf44802781
fc03d345c41ff614ad5d6c0aeb2c042e8191aabd57605b5eef480547b752c7e7
a2aa2e5a773159427a463625a72c84ae6843122a4427013913fe95abe9bfbe76
ec73ce294407ff3abb67d0b0bcb3871d7c54b6984f3c3783eee05254e0852ff9
1025c4755d708f087560cd1eb2babd1274a63c82c7f0133ce9b05ef5906b2133
SH256 hash:
ec73ce294407ff3abb67d0b0bcb3871d7c54b6984f3c3783eee05254e0852ff9
MD5 hash:
96410cb83b262dabb95608c6c26c5233
SHA1 hash:
9a449b100aa5de4f3dcb8236007ac0aa7a27f00b
Link:
https://www.unpac.me/results/e7d6a359-ff01-433b-a371-c976e8624c95/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ec73ce294407/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/ec73ce294407ff3abb67d0b0bcb3871d7c54b6984f3c3783eee05254e0852ff9

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:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:pe_detect_tls_callbacks
Create hunting rule

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 ec73ce294407ff3abb67d0b0bcb3871d7c54b6984f3c3783eee05254e0852ff9

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3174502/
  
Delivery method
Distributed via web download

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::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetVolumeInformationW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetStartupInfoA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::FillConsoleOutputCharacterA
KERNEL32.dll::WriteConsoleOutputA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::WriteConsoleA
KERNEL32.dll::SetConsoleTitleA
KERNEL32.dll::SetStdHandle
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileA
KERNEL32.dll::GetFileAttributesW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
KERNEL32.dll::QueryDosDeviceA

Comments