MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3ec76b58400fa83602d35d82f38341d921223dcdf175b98bca435a59ba340464. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3ec76b58400fa83602d35d82f38341d921223dcdf175b98bca435a59ba340464
SHA3-384 hash: a6465d7c2ee920981199ab2377cda833dcbfcc854fa871dd053aac8d86446dd7dd0b1eb7c48609054727cb63f3553f42
SHA1 hash: 8fd13d5ed119640fdf3cf2519c1ae98abc6fe2de
MD5 hash: 3003235244455682dd316defddb9369c
humanhash: bulldog-undress-finch-indigo
File name:file
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:239'104 bytes
First seen:2024-07-25 21:27:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ea1618932e1586c666c9f7c347c4d255 (1 x Smoke Loader, 1 x Stealc)
ssdeep 3072:qHHNw9sZxXaS4pcO4QtFkaEWNqvMorMlT5DTP0t1OQqODuMWATH:Atw9sZxXdIc/QtFkPWzorYAtP6M/T
Threatray 2'409 similar samples on MalwareBazaar
TLSH T17634BE087698D43DD1A315309CB9F2F5162EFC67CA6BD58B32983F5F3E322815A25362
TrID 37.3% (.EXE) Win64 Executable (generic) (10523/12/4)
17.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
15.9% (.EXE) Win32 Executable (generic) (4504/4/1)
7.3% (.ICL) Windows Icons Library (generic) (2059/9)
7.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 1a72c2da98585c2c (9 x Stealc, 4 x Smoke Loader, 3 x Tofsee)
Reporter Bitsight
Tags:exe Smoke Loader


Avatar
Bitsight
url: https://coe.com.vn/tmp/2.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
337
Origin country :
US US
Vendor Threat Intelligence
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=66a34f5c81e42e2b16c7ab2a
Tags:
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
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
epmicrosoft_visual_cc microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/66a2c362556840231715b3dc/reports/00aa1a3e-9e60-4fb4-9836-ce833ab5b50f/overview
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/fde3eedd-f9bf-401b-9e5d-ca3e6faee27b
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1482541
Signature
AI detected suspicious sample
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)
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
Performs DNS queries to domains with low reputation
Query firmware table information (likely to detect VMs)
Switches to a custom stack to bypass stack traces
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1482541 Sample: file.exe Startdate: 26/07/2024 Architecture: WINDOWS Score: 100 25 wshcnsd.xyz 2->25 27 yosoborno.com 2->27 29 2 other IPs or domains 2->29 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Yara detected SmokeLoader 2->41 45 3 other signatures 2->45 8 file.exe 2->8         started        11 hiawbcf 2->11         started        13 explorer.exe 31 133 2->13         started        signatures3 43 Performs DNS queries to domains with low reputation 25->43 process4 signatures5 47 Detected unpacking (changes PE section rights) 8->47 49 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->49 51 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 8->51 61 2 other signatures 8->61 15 explorer.exe 25 3 8->15 injected 53 Machine Learning detection for dropped file 11->53 55 Maps a DLL or memory area into another process 11->55 57 Checks if the current machine is a virtual machine (disk enumeration) 11->57 59 Query firmware table information (likely to detect VMs) 13->59 process6 file7 21 C:\Users\user\AppData\Roaming\hiawbcf, PE32 15->21 dropped 23 C:\Users\user\...\hiawbcf:Zone.Identifier, ASCII 15->23 dropped 31 Benign windows process drops PE files 15->31 33 Deletes itself after installation 15->33 35 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->35 19 WerFault.exe 21 15->19         started        signatures8 process9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3ec76b58400fa83602d35d82f38341d921223dcdf175b98bca435a59ba340464
Detection:
smokeloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3ec76b58400fa83602d35d82f38341d921223dcdf175b98bca435a59ba340464/
Threat name:
Win32.Trojan.Smokeloader
Create hunting rule
Status:
Malicious
First seen:
2024-07-25 21:28:10 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h3dwwwcab6udmawtlwbpha2b3eqsepon6f23tc6kinnftoruarsa._file
Verdict:
malicious
Similar samples:
083c9a8679034f65137bce38b2f1db98225a8d1f18dc351ee4d5adfc464fa72b
Smoke Loader
1efbc80ffd55c78287134a11add66b10bf7b2cd724913721a7f305d483050593
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4f6b05e7e7c2c51a1cf5569a47a8bf31f8d452359f5a37bcecd36ef3f852c858
Smoke Loader
7c7cded8d1c0784881859ed03340d81c24ea9bf5d9972963cedf0e40b9856a0c
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91e8fd048fb5df071ba6e3d7917edcb53122d9cbd9e57dcf4b5e50c72d575c7a
Smoke Loader
b6c6e0ed6e5aa62baec8de42d2d8fee52df072c6a2b33530fbf8bc73d36309a9
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d0a5a89efc24b65fc97c0bb78051d46c04c8470d295e6d8eeecbf61e520e197e
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f79fad860397942a2d808e1d2b5601f7d3b2af5057195507b782d797be07f301
Smoke Loader
+ 2'399 additional samples on MalwareBazaar
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader botnet:pub2 backdoor discovery trojan
Link:
https://tria.ge/reports/240725-1ba63swbjr/
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/eb19f193-4754-41d5-8557-83bfb973508b
Unpacked files
SH256 hash:
977646f31a879d2ddd9938e2f39a74653556fd970dd2fa6172f26348d18622dc
MD5 hash:
8ee858716125555e7355a2b919417a53
SHA1 hash:
20a3bfa728fe21f18f6c4f8c17c01e4bd416063e
Detections:
SmokeLoaderStage2
Create hunting rule
win_smokeloader_a2
Create hunting rule
Link:
https://www.unpac.me/results/2dc02198-1554-4343-91fd-80633d51ec47/
Parent samples :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 hash:
3ec76b58400fa83602d35d82f38341d921223dcdf175b98bca435a59ba340464
MD5 hash:
3003235244455682dd316defddb9369c
SHA1 hash:
8fd13d5ed119640fdf3cf2519c1ae98abc6fe2de
Link:
https://www.unpac.me/results/2dc02198-1554-4343-91fd-80633d51ec47/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3ec76b58400f/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/3ec76b58400fa83602d35d82f38341d921223dcdf175b98bca435a59ba340464

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:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

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 3ec76b58400fa83602d35d82f38341d921223dcdf175b98bca435a59ba340464

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2948289/
  
URLhaus
https://urlhaus.abuse.ch/url/3052257/
  
URLhaus
https://urlhaus.abuse.ch/url/3052315/

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
KERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetDiskFreeSpaceExW
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleInputW
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::PeekConsoleInputW
KERNEL32.dll::SetConsoleCtrlHandler
KERNEL32.dll::SetStdHandle
KERNEL32.dll::AssignProcessToJobObject
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkA
KERNEL32.dll::CreateFileW
KERNEL32.dll::CreateFileA
KERNEL32.dll::GetSystemDirectoryW
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpOpen

Comments