MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2aa2e5a773159427a463625a72c84ae6843122a4427013913fe95abe9bfbe76. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a2aa2e5a773159427a463625a72c84ae6843122a4427013913fe95abe9bfbe76
SHA3-384 hash: 09a19dd078548915e66236e88ec3e213d7affc53b81117855b5a2252859386c206f0c6764ba17d6ecb6679921d0a3f39
SHA1 hash: 3a16fc450a0f0869cafd5965ed939ee4df654915
MD5 hash: c6dc63f08eb87cb6342c2d999d364de7
humanhash: carolina-missouri-fix-fourteen
File name:c6dc63f08eb87cb6342c2d999d364de7.exe
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:234'496 bytes
First seen:2024-09-17 14:00:26 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:tLov5jxk6KrY93aH1QVoIP71LJo35oCT5+a8w5cEXot4W:tLos6q4HoFe
TLSH T1C034295069F1CC2AF2B7B5B5C531EDA01A3FFCE2A961806A3604161E2CF17904977B9F
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 000c0733331d0e00 (1 x Smoke Loader)
Reporter abuse_ch
Tags:exe Smoke Loader

Intelligence

File Origin
# of uploads :
2
# of downloads :
431
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c6dc63f08eb87cb6342c2d999d364de7.exe
Verdict:
Malicious activity
Analysis date:
2024-09-17 14:01:44 UTC
Tags:
loader smokeloader
Link:
https://app.any.run/tasks/915f0c26-d791-4751-be24-69e01a68104b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.24455.14602.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66e98ba15d6a2b58599a9243
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/66e98ba14a48170ff00c7c8a/reports/52b30cc3-0281-4c3d-b620-d6bb0467ac1a/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/a2aa2e5a773159427a463625a72c84ae6843122a4427013913fe95abe9bfbe76
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/7a516297-dbb1-4616-8094-abacdb319d2f
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1512535
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 evasive API chain (may stop execution after checking mutex)
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
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Queries sensitive service information (via WMI, Win32_StartupCommand, often done to detect sandboxes)
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)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses ipconfig to lookup or modify the Windows network settings
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1512535 Sample: 3pl0GSzVPg.exe Startdate: 17/09/2024 Architecture: WINDOWS Score: 100 53 time.windows.com 2->53 55 olihonols.in.net 2->55 57 3 other IPs or domains 2->57 71 Suricata IDS alerts for network traffic 2->71 73 Found malware configuration 2->73 75 Malicious sample detected (through community Yara rule) 2->75 77 5 other signatures 2->77 10 3pl0GSzVPg.exe 2->10         started        13 uigthiw 2->13         started        15 ecgthiw 2->15         started        17 msiexec.exe 2->17         started        signatures3 process4 signatures5 119 Detected unpacking (changes PE section rights) 10->119 121 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 10->121 123 Maps a DLL or memory area into another process 10->123 19 explorer.exe 64 9 10->19 injected 125 Multi AV Scanner detection for dropped file 13->125 127 Machine Learning detection for dropped file 13->127 129 Checks if the current machine is a virtual machine (disk enumeration) 13->129 131 Antivirus detection for dropped file 15->131 133 Creates a thread in another existing process (thread injection) 15->133 135 Switches to a custom stack to bypass stack traces 15->135 process6 dnsIp7 59 epohe.ru 201.110.211.85, 49704, 80 UninetSAdeCVMX Mexico 19->59 61 2.185.214.11, 49750, 80 TCIIR Iran (ISLAMIC Republic Of) 19->61 63 3 other IPs or domains 19->63 45 C:\Users\user\AppData\Roaming\uigthiw, PE32 19->45 dropped 47 C:\Users\user\AppData\Roaming\ecgthiw, PE32 19->47 dropped 49 C:\Users\user\AppData\Local\Temp\A999.exe, PE32+ 19->49 dropped 51 2 other malicious files 19->51 dropped 85 System process connects to network (likely due to code injection or exploit) 19->85 87 Benign windows process drops PE files 19->87 89 Injects code into the Windows Explorer (explorer.exe) 19->89 91 3 other signatures 19->91 24 A999.exe 2 19->24         started        27 86BA.exe 19->27         started        29 explorer.exe 20 19->29         started        31 5 other processes 19->31 file8 signatures9 process10 signatures11 93 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 24->93 95 Machine Learning detection for dropped file 24->95 97 Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines) 24->97 99 Queries sensitive service information (via WMI, Win32_StartupCommand, often done to detect sandboxes) 24->99 33 cmd.exe 24->33         started        101 Antivirus detection for dropped file 27->101 103 Detected unpacking (changes PE section rights) 27->103 105 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 27->105 117 5 other signatures 27->117 107 System process connects to network (likely due to code injection or exploit) 29->107 109 Found evasive API chain (may stop execution after checking mutex) 29->109 111 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 29->111 113 Tries to steal Mail credentials (via file / registry access) 29->113 115 Tries to harvest and steal browser information (history, passwords, etc) 31->115 process12 signatures13 65 Uses netsh to modify the Windows network and firewall settings 33->65 67 Uses ipconfig to lookup or modify the Windows network settings 33->67 69 Modifies the windows firewall 33->69 36 WMIC.exe 33->36         started        39 systeminfo.exe 33->39         started        41 conhost.exe 33->41         started        43 17 other processes 33->43 process14 signatures15 79 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 36->79 81 Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines) 36->81 83 Queries sensitive service information (via WMI, Win32_StartupCommand, often done to detect sandboxes) 36->83
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a2aa2e5a773159427a463625a72c84ae6843122a4427013913fe95abe9bfbe76
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a2aa2e5a773159427a463625a72c84ae6843122a4427013913fe95abe9bfbe76/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2024-09-17 14:01:11 UTC
File Type:
PE (Exe)
Extracted files:
66
AV detection:
16 of 38 (42.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ukvc4wtxgfmue6sggys2oleevzuegerkiqtqcoit72k2x2n7xz3a._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-rbjc1swfpc/
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/eacae91a-cbc4-4d19-9613-2b752580b088
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/40776edf-0656-4d8e-bf85-8485c093faab/
Parent samples :
726a67046152f94bf0372b95325f029d834f3bd3ce9246bdd76f03efac45195e
0923186058b76b52069af9fd282af6c98766179cbdd524e4d941e0bf44802781
fc03d345c41ff614ad5d6c0aeb2c042e8191aabd57605b5eef480547b752c7e7
a2aa2e5a773159427a463625a72c84ae6843122a4427013913fe95abe9bfbe76
ec73ce294407ff3abb67d0b0bcb3871d7c54b6984f3c3783eee05254e0852ff9
1025c4755d708f087560cd1eb2babd1274a63c82c7f0133ce9b05ef5906b2133
SH256 hash:
a2aa2e5a773159427a463625a72c84ae6843122a4427013913fe95abe9bfbe76
MD5 hash:
c6dc63f08eb87cb6342c2d999d364de7
SHA1 hash:
3a16fc450a0f0869cafd5965ed939ee4df654915
Link:
https://www.unpac.me/results/40776edf-0656-4d8e-bf85-8485c093faab/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a2aa2e5a7731/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/a2aa2e5a773159427a463625a72c84ae6843122a4427013913fe95abe9bfbe76

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 a2aa2e5a773159427a463625a72c84ae6843122a4427013913fe95abe9bfbe76

(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_NXMissing Non-Executable Memory Protectioncritical
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