MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f40c3883f19dda754f0d00ab1e51d8d691c680490ea4040f6a03ac0337ba2584. 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: f40c3883f19dda754f0d00ab1e51d8d691c680490ea4040f6a03ac0337ba2584
SHA3-384 hash: db9322c21e60f043ba45ca42252d7b110843ef4a97e277094d82319769b04487cfffdd1a8154814cc2e657b9608b95ba
SHA1 hash: b086cb9738de2b72943d033ae6337848a1bef90e
MD5 hash: aeb1d328221b268578d7ff6c7cb64f87
humanhash: magnesium-oscar-enemy-vegan
File name:file
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:216'576 bytes
First seen:2024-07-08 04:11:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 4bdd01efb3f9cfa329abd02683ca7679 (1 x Smoke Loader)
ssdeep 3072:nvx8gKClQiS5NchbQtvajVBG6MVN0Kd24kfc3A/:vx8gKlJ8JBG6FKkU
Threatray 2'334 similar samples on MalwareBazaar
TLSH T1E024DF2032E194B2E1939D3C6976D6B19A3B7C62BB34C64F2794027F2DF22C14B16B57
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 0606040108383000 (1 x Smoke Loader)
Reporter Bitsight
Tags:exe Smoke Loader


Avatar
Bitsight
url: https://biancolevrin.com/tmp/1.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
368
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f40c3883f19dda754f0d00ab1e51d8d691c680490ea4040f6a03ac0337ba2584.exe
Verdict:
Malicious activity
Analysis date:
2024-07-08 04:16:19 UTC
Tags:
loader smokeloader
Link:
https://app.any.run/tasks/7cca84ec-b85d-499e-b19a-00787abe7b1e

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:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=668b671327fa347bfaae80d9win7simulatehigh_evasion
Tags:
Zpack
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Connection attempt to an infection source
DNS request
Query of malicious DNS domain
Enabling autorun by creating a file
Sending an HTTP POST request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
epmicrosoft_visual_cc fingerprint microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/668b67144c6b479391e404c8/reports/005373bd-7027-4181-802d-ccbf1f6ab61d/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/f40c3883f19dda754f0d00ab1e51d8d691c680490ea4040f6a03ac0337ba2584
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/a47cb6e0-6652-4854-ba46-958c780e1210
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1468869
Signature
AI detected suspicious sample
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)
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
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 SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1468869 Sample: file.exe Startdate: 08/07/2024 Architecture: WINDOWS Score: 100 26 gebeus.ru 2->26 28 evilos.cc 2->28 30 api.msn.com 2->30 46 Multi AV Scanner detection for domain / URL 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 6 other signatures 2->52 8 file.exe 2->8         started        11 edtgada 2->11         started        13 explorer.exe 24 131 2->13         started        signatures3 process4 signatures5 54 Detected unpacking (changes PE section rights) 8->54 56 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->56 58 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 8->58 68 3 other signatures 8->68 15 explorer.exe 27 3 8->15 injected 60 Multi AV Scanner detection for dropped file 11->60 62 Machine Learning detection for dropped file 11->62 64 Maps a DLL or memory area into another process 11->64 66 Query firmware table information (likely to detect VMs) 13->66 process6 dnsIp7 32 gebeus.ru 175.119.10.231, 63954, 63955, 63956 SKB-ASSKBroadbandCoLtdKR Korea Republic of 15->32 34 77.221.157.163, 63963, 80 INFOBOX-ASInfoboxruAutonomousSystemRU Russian Federation 15->34 36 evilos.cc 127.0.0.127 unknown unknown 15->36 22 C:\Users\user\AppData\Roaming\edtgada, PE32 15->22 dropped 24 C:\Users\user\...\edtgada:Zone.Identifier, ASCII 15->24 dropped 38 System process connects to network (likely due to code injection or exploit) 15->38 40 Benign windows process drops PE files 15->40 42 Deletes itself after installation 15->42 44 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->44 20 WerFault.exe 21 15->20         started        file8 signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f40c3883f19dda754f0d00ab1e51d8d691c680490ea4040f6a03ac0337ba2584
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f40c3883f19dda754f0d00ab1e51d8d691c680490ea4040f6a03ac0337ba2584/
Threat name:
Win32.Trojan.SmokeLoader
Create hunting rule
Status:
Malicious
First seen:
2024-07-08 01:00:04 UTC
File Type:
PE (Exe)
Extracted files:
22
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6qgdra7rtxnhktynacvr4uoy22i4nacjb2said3kaowagn52ewca._file
Verdict:
malicious
Similar samples:
083c9a8679034f65137bce38b2f1db98225a8d1f18dc351ee4d5adfc464fa72b
Smoke Loader
1efbc80ffd55c78287134a11add66b10bf7b2cd724913721a7f305d483050593
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4f6b05e7e7c2c51a1cf5569a47a8bf31f8d452359f5a37bcecd36ef3f852c858
Smoke Loader
91e8fd048fb5df071ba6e3d7917edcb53122d9cbd9e57dcf4b5e50c72d575c7a
Smoke Loader
968ac4fee13725e122fd677c971dfada4e73d77e367be94cbf59af97872afaeb
Smoke Loader
b6c6e0ed6e5aa62baec8de42d2d8fee52df072c6a2b33530fbf8bc73d36309a9
Smoke Loader
f40c3883f19dda754f0d00ab1e51d8d691c680490ea4040f6a03ac0337ba2584
Smoke Loader
f79fad860397942a2d808e1d2b5601f7d3b2af5057195507b782d797be07f301
Smoke Loader
+ 2'324 additional samples on MalwareBazaar
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader botnet:pub1 backdoor trojan
Link:
https://tria.ge/reports/240708-eshftstfre/
Behaviour
Checks SCSI registry key(s)
Program crash
SmokeLoader
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/08df40e4-339f-4e56-a78b-39e3f6afb4a6
Unpacked files
SH256 hash:
a2a36aa824eb663bbe7478f50d432d2efd2006472cdfe8842bd83e4ca4f04666
MD5 hash:
1248480e0503c6749983403134d42b7d
SHA1 hash:
2b47694311b48245f2883cd50b955b6f38f3a3b2
Detections:
SmokeLoaderStage2
Create hunting rule
win_smokeloader_a2
Create hunting rule
Link:
https://www.unpac.me/results/175cbf99-430c-4a0c-abb6-6a22ebd746f7/
Parent samples :
ea3ee2e3e5558a8267f3f5093144debf3263b5d3dea1598fa59ef7bde043c2b9
37e6e5d8b399fefb9ae774516ff6367e800c69a272e18a654bb84ccff2d7c67a
dd6f8daddb7da0e8b9be526fc3aa9c5f0808fe6926ca7a9648464f9b4f8140e1
55f04c9f83b628e58e28a63ce9089519c7457ef52b9bb4504f73a5c97cad26ca
a6c2a7ffb68b797967ad979e51a1330e9f16223e4f5dc8500b0a58741176f83c
487d893f6d85731ec5e27e65c863163de9cb7bf8c2f0f18118caa6449c96c922
e33636849f3662796f4ce6584c06729eb6e1df305c700a8a12890c831488c533
9b5bb6664b66132e313e9f3e6bf35452008d2e47a91913918a633b348133b617
b87126fd409621a4d510dda005cd84e254d491274661cf22238b271412ff860b
9d7926dac81c4f7200c84298c7839162a2996339262f58bd815d2a94c380a151
ae3d2033118b60d6112bf68e9a241d04f80be85f6d329cd397cb16e855e2bc84
77ba6812b4e9223398d31476512a19ce12c60cf8c9d139e4578f3f19563e0d52
f40c3883f19dda754f0d00ab1e51d8d691c680490ea4040f6a03ac0337ba2584
dfb24443852647217f54bc9078e59394e1c81109c9c57678b5aa535b4133a372
1b5fbf0fffc028708def7f8b1510dd668da7abbd0d0f63b597669339005e33e0
7b2ece053ca47f1dfc2199e5872a4a273ccac740a0ceef209fa8d7867e6cf646
0fa34507e4989e8a96cea715d3418f343bc35cbb256d63da1a87ea82de59c350
a93a0b125c19135c7a7def5d8fe1219885e61a45f0b962103e726086179b35b8
4494ba81137d4fbad06b191f392cfbb90d31870a7584cd8dc2d8358d1a1bad84
4dd0a176ce6a71fe7680c2d0454874564c8d8fdd9edb330c473fb56aa2275507
8319ac8978ed747e7b39e3fe0210a7b49df634217a38fba56c0e65743d634622
8c134f0fdc3cf972dc7846cd39d8caa3ca20fb874ea8583221cf868eb08ffa99
0811449e8fe78213f52e656b7e2a926a0da64ad149a3e522aea10487c087ceb8
8fd4c66e2864ac0827a57b3fdb27a2a1adb28228969134bb1dd9971b07c7144f
f9e6524d84ac9ee9bae375246118dd5123a1d144a7a64d79f39be958ffd0a126
2f0677f3129fefcd9c91182e9b494868110d34da56055a98ab1264fb8f18a8ef
7e0623dbd4975ddc7790c45c9407527c048cb04727ddf757e70f7d5b702703fd
154aad6fa244bbbf1b7d740a3553c66d2bc10735a18641abeda60162fc1fcdc0
7c7cded8d1c0784881859ed03340d81c24ea9bf5d9972963cedf0e40b9856a0c
408e6e127e24828a7fd237ffa2e6bdf031847ff3a28bf4c6ed89a6c1fd7cfc7c
76468a50f8db3f099c2f6a0601ad5b4a2606568c83332a5dc0875428dc18c6d3
1925ddf975a0dd86f3b2cade044a1391420fd1be19a43a4d75c75d55aef7e495
d0a5a89efc24b65fc97c0bb78051d46c04c8470d295e6d8eeecbf61e520e197e
f51b97f6816ab443b5652bf340c562927152b27da26a08a04b4b79f7cebd655e
3cc5509318b88990ff3c137b65e94cfe0cc6759a16180c849584b0345b345ef1
f42503b4678644e3475344042dafa742e5f3d2d75a7c16409f10d7bcca17e028
1c4856a56c6b9b168d73deb0fcc740215455041edcf96f90d48d2f31726f7269
SH256 hash:
f40c3883f19dda754f0d00ab1e51d8d691c680490ea4040f6a03ac0337ba2584
MD5 hash:
aeb1d328221b268578d7ff6c7cb64f87
SHA1 hash:
b086cb9738de2b72943d033ae6337848a1bef90e
Link:
https://www.unpac.me/results/175cbf99-430c-4a0c-abb6-6a22ebd746f7/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f40c3883f19d/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/f40c3883f19dda754f0d00ab1e51d8d691c680490ea4040f6a03ac0337ba2584

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:SEH__vectored
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 f40c3883f19dda754f0d00ab1e51d8d691c680490ea4040f6a03ac0337ba2584

(this sample)

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

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
AUTH_APIManipulates User AuthorizationADVAPI32.dll::GetLengthSid
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AttachConsole
KERNEL32.dll::WriteConsoleInputA
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileA
KERNEL32.dll::ReplaceFileA
KERNEL32.dll::GetWindowsDirectoryW
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpWriteData

Comments