MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f691d08d4d08a092f52d63eb5a5fce0cbdeeaa042c18282c73ac5ebb627c25d3. 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: 19


Intelligence 19 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f691d08d4d08a092f52d63eb5a5fce0cbdeeaa042c18282c73ac5ebb627c25d3
SHA3-384 hash: e821ff7890d14afae9c2ab531fa4975ea9c223a57f2bcdb46607be231d458eb77895fc047b948fd8626901089c43ca1f
SHA1 hash: d4bd3dcc3c5c1bed477f3eccbf1561b4c4f9180b
MD5 hash: a4bc249dc997df25a0e709eee0a0df87
humanhash: fourteen-nebraska-sodium-spring
File name:a4bc249dc997df25a0e709eee0a0df87.exe
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:413'184 bytes
First seen:2024-09-02 06:00:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3db609d4227cf2765fb47eb54c2d687e (1 x Smoke Loader)
ssdeep 6144:k2Lh2Mw6FnhZ+ObiTteTqeN1qRU1WG0S2IcNPk:kSh2JYnhoObK4MUCXi
TLSH T1C094CF126AE8BC25D5612A329D2DC7FC362EBC11AE14375A22D87F3F28703E1F562351
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
File icon (PE):PE icon
dhash icon 1a72c2db98585c0c (9 x Stealc, 6 x Tofsee, 5 x Smoke Loader)
Reporter abuse_ch
Tags:exe Smoke Loader

Intelligence

File Origin
# of uploads :
1
# of downloads :
445
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a4bc249dc997df25a0e709eee0a0df87.exe
Verdict:
Malicious activity
Analysis date:
2024-09-02 06:45:26 UTC
Tags:
loader smokeloader
Link:
https://app.any.run/tasks/3a34947e-597b-43d7-adc6-879f22aa91cd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66d554aaa0c486d2f79405ae
Tags:
Network Stealth Malware
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
DNS request
Connection attempt
Sending an HTTP POST request
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
epmicrosoft_visual_cc fingerprint microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/66d554a38a851f90c65b4e2c/reports/24b15071-8f65-477e-99a6-efec57931ff5/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/f691d08d4d08a092f52d63eb5a5fce0cbdeeaa042c18282c73ac5ebb627c25d3
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.
Malware family:
Malicious Packer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fa435255-b695-49e8-9c9d-bdefc7d84b72
Result
Threat name:
CryptOne, SmokeLoader, Stealc
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1502739
Signature
AI detected suspicious sample
Allocates memory in foreign processes
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)
Contains functionality to inject code into remote processes
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 a PE file into a foreign processes
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
Query firmware table information (likely to detect VMs)
Sample uses process hollowing technique
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)
Writes to foreign memory regions
Yara detected CryptOne packer
Yara detected Powershell download and execute
Yara detected SmokeLoader
Yara detected Stealc
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1502739 Sample: oZB7n3wuNk.exe Startdate: 02/09/2024 Architecture: WINDOWS Score: 100 42 www.darkviolet-alpaca-923878.hostingersite.com 2->42 44 free.cdn.hstgr.net 2->44 46 2 other IPs or domains 2->46 58 Suricata IDS alerts for network traffic 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 9 other signatures 2->64 9 oZB7n3wuNk.exe 2->9         started        12 birajci 2->12         started        14 explorer.exe 25 127 2->14         started        signatures3 process4 signatures5 74 Detected unpacking (changes PE section rights) 9->74 76 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 9->76 78 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 9->78 88 3 other signatures 9->88 16 explorer.exe 26 5 9->16 injected 80 Multi AV Scanner detection for dropped file 12->80 82 Machine Learning detection for dropped file 12->82 84 Maps a DLL or memory area into another process 12->84 86 Query firmware table information (likely to detect VMs) 14->86 process6 dnsIp7 38 epohe.ru 2.185.214.11, 49716, 49717, 49718 TCIIR Iran (ISLAMIC Republic Of) 16->38 40 free.cdn.hstgr.net 84.32.84.152, 443, 49744 NTT-LT-ASLT Lithuania 16->40 30 C:\Users\user\AppData\Roaming\birajci, PE32 16->30 dropped 32 C:\Users\user\AppData\Local\Temp\9A25.exe, PE32 16->32 dropped 34 C:\Users\user\...\birajci:Zone.Identifier, ASCII 16->34 dropped 50 System process connects to network (likely due to code injection or exploit) 16->50 52 Benign windows process drops PE files 16->52 54 Deletes itself after installation 16->54 56 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->56 21 9A25.exe 1 16->21         started        25 WerFault.exe 21 16->25         started        file8 signatures9 process10 file11 36 C:\Users\user\AppData\...\svchost015.exe, PE32 21->36 dropped 66 Multi AV Scanner detection for dropped file 21->66 68 Contains functionality to inject code into remote processes 21->68 70 Writes to foreign memory regions 21->70 72 3 other signatures 21->72 27 svchost015.exe 13 21->27         started        signatures12 process13 dnsIp14 48 91.202.233.158, 49751, 80 M247GB Russian Federation 27->48
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f691d08d4d08a092f52d63eb5a5fce0cbdeeaa042c18282c73ac5ebb627c25d3
Detection:
smokeloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f691d08d4d08a092f52d63eb5a5fce0cbdeeaa042c18282c73ac5ebb627c25d3/
Threat name:
Win32.Trojan.GCleaner
Create hunting rule
Status:
Malicious
First seen:
2024-09-01 10:46:30 UTC
File Type:
PE (Exe)
Extracted files:
39
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=62i5bdknbcqjf5jnmpvvux6obs665kqefqmcqldtvrplwyt4exjq._file
Verdict:
malicious
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader botnet:pub1 backdoor discovery trojan
Link:
https://tria.ge/reports/240902-gqxtvatdpl/
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/3478777d-932a-4266-9be2-4aaa30fd7bc1
Unpacked files
SH256 hash:
a50f0f6520f575916cf5e95721f4f4465501dfc2e9d3bcf22e99b10b91717c24
MD5 hash:
a53f4ff99fb51fea931a577880ec744e
SHA1 hash:
1355c69a04f9e283dac7d9a234c0f18183432d58
Detections:
SmokeLoaderStage2
Create hunting rule
win_smokeloader_a2
Create hunting rule
Link:
https://www.unpac.me/results/5ab39f54-0da0-4dd2-9e66-21503303a54f/
Parent samples :
0599250511b7b3ec63303fa14e98edef3092d61614e07106cf274bd6d43b2451
822d4a0dc03fa0348fc8a12c3e0c3c10ad433abbf34f858b64406beaf8606d87
f691d08d4d08a092f52d63eb5a5fce0cbdeeaa042c18282c73ac5ebb627c25d3
9a23e3b2d894fb3af028f7bc2eae2da52c723eb2cc9b76a5d4efc98bdcba92a1
1f527c33a9a07976aee7a744579f7efe6ca704660c4b1d8c86e138cfe9000c45
dfe6226632702de153cf28a07ce5939072365797a8cc358932a62052a0c7f010
SH256 hash:
f691d08d4d08a092f52d63eb5a5fce0cbdeeaa042c18282c73ac5ebb627c25d3
MD5 hash:
a4bc249dc997df25a0e709eee0a0df87
SHA1 hash:
d4bd3dcc3c5c1bed477f3eccbf1561b4c4f9180b
Link:
https://www.unpac.me/results/5ab39f54-0da0-4dd2-9e66-21503303a54f/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f691d08d4d08/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/f691d08d4d08a092f52d63eb5a5fce0cbdeeaa042c18282c73ac5ebb627c25d3

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:Detect_Nimplant_PE
Create hunting rule
Author:daniyyell
Description:Detects malicious nimplant variant PE malware.

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 f691d08d4d08a092f52d63eb5a5fce0cbdeeaa042c18282c73ac5ebb627c25d3

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3112849/
  
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::SetProcessShutdownParameters
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetDiskFreeSpaceExA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::PeekConsoleInputW
KERNEL32.dll::ReadConsoleInputW
KERNEL32.dll::SetConsoleCP
KERNEL32.dll::SetConsoleWindowInfo
KERNEL32.dll::GetConsoleAliasExesW
KERNEL32.dll::GetConsoleAliasExesLengthW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkA
KERNEL32.dll::CreateFileMappingW
KERNEL32.dll::GetFileAttributesA
KERNEL32.dll::GetTempPathA
KERNEL32.dll::SetVolumeMountPointA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::QueryDosDeviceW

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