MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 401b5b32c9fbe6e3f372bab1795392758a558f7235f498def22ee8345da0c4bb. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 401b5b32c9fbe6e3f372bab1795392758a558f7235f498def22ee8345da0c4bb
SHA3-384 hash: 11baf9312f07ef1c067d3e61c0434ba5df14e40941bdd16e8bc5b84dfdebfb655698e512e8058db71534e7a8a75b9b6d
SHA1 hash: 2df7bd98faff0b3200ce9304141bef9c39ca15b1
MD5 hash: b3b21d5bbe9301c20d5d04734e047155
humanhash: angel-five-orange-mango
File name:b3b21d5bbe9301c20d5d04734e047155.exe
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:427'520 bytes
First seen:2024-10-15 07:15:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 767a7d2b1ae571d69dfa0265482764e5 (3 x Smoke Loader, 1 x Stealc)
ssdeep 6144:kLqJGL6sSCB41KXwOD4psSVspXAmXgR59wrv0xOOLpc:k2ELOCB41Hq3Lesb0xO
TLSH T10094C09352D2BCE0FD1286318D1ECFE876EDF9618E58A66733987A2F18701E1D227711
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10522/11/4)
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 0301070909033100 (1 x Smoke Loader)
Reporter abuse_ch
Tags:exe Smoke Loader

Intelligence

File Origin
# of uploads :
1
# of downloads :
407
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b3b21d5bbe9301c20d5d04734e047155.exe
Verdict:
Malicious activity
Analysis date:
2024-10-15 08:12:48 UTC
Tags:
loader smokeloader
Link:
https://app.any.run/tasks/d63852ed-e873-45c5-8ffc-5d440fe920c4

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:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=670e16b61d4ef219fa62c01f
Tags:
Phishing Hype Onli
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
epmicrosoft_visual_cc fingerprint lolbin microsoft_visual_cc packed shell32
Link:
https://www.filescan.io/uploads/670e16b4a3cc924e39fd0529/reports/687f93b3-3705-48f9-9dd6-c242816b76b8/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/401b5b32c9fbe6e3f372bab1795392758a558f7235f498def22ee8345da0c4bb
Result
Verdict:
MALICIOUS
Malware family:
Malicious Packer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/14a13b40-ddb7-4c62-af3c-115cfd0fbda1
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1533859
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted 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)
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
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)
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1533859 Sample: ZAxTHh8qYe.exe Startdate: 15/10/2024 Architecture: WINDOWS Score: 100 21 tnc-corp.ru 2->21 27 Suricata IDS alerts for network traffic 2->27 29 Found malware configuration 2->29 31 Malicious sample detected (through community Yara rule) 2->31 33 6 other signatures 2->33 7 ZAxTHh8qYe.exe 2->7         started        10 jjcgaar 2->10         started        signatures3 process4 signatures5 35 Detected unpacking (changes PE section rights) 7->35 37 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->37 39 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 7->39 47 4 other signatures 7->47 12 explorer.exe 61 3 7->12 injected 41 Antivirus detection for dropped file 10->41 43 Multi AV Scanner detection for dropped file 10->43 45 Machine Learning detection for dropped file 10->45 process6 dnsIp7 23 tnc-corp.ru 187.228.106.109, 60243, 60244, 60245 UninetSAdeCVMX Mexico 12->23 25 190.187.52.42, 60548, 60549, 60550 AMERICATELPERUSAPE Peru 12->25 17 C:\Users\user\AppData\Roaming\jjcgaar, PE32 12->17 dropped 19 C:\Users\user\...\jjcgaar:Zone.Identifier, ASCII 12->19 dropped 49 System process connects to network (likely due to code injection or exploit) 12->49 51 Benign windows process drops PE files 12->51 53 Deletes itself after installation 12->53 55 Hides that the sample has been downloaded from the Internet (zone.identifier) 12->55 file8 signatures9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/401b5b32c9fbe6e3f372bab1795392758a558f7235f498def22ee8345da0c4bb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/401b5b32c9fbe6e3f372bab1795392758a558f7235f498def22ee8345da0c4bb/
Threat name:
Win32.Rootkit.BootkitX
Create hunting rule
Status:
Malicious
First seen:
2024-10-15 07:16:06 UTC
File Type:
PE (Exe)
Extracted files:
49
AV detection:
24 of 38 (63.16%)
Threat level:
  4/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ianvwmwj7ptoh43sxkyxsu4sowffld3sgx2jrxxsf3udixnays5q._file
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader botnet:pub3 backdoor discovery trojan
Link:
https://tria.ge/reports/241015-h3ttdswamk/
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/0659eacb-dc70-4027-bd7c-54fde86fe9cd
Unpacked files
SH256 hash:
f5abf2019c4c43f7e325389ac622cbe562414176c7bca2d761b0619c6c04a6bd
MD5 hash:
7e59daa14387ed7400c2d91644477fff
SHA1 hash:
98cff30fe0fc463cd96cd4bf1444a230d709413a
Detections:
SmokeLoaderStage2
Create hunting rule
win_smokeloader_a2
Create hunting rule
Link:
https://www.unpac.me/results/a89fc907-c2e6-4b42-9ed9-306a9c59addf/
Parent samples :
401b5b32c9fbe6e3f372bab1795392758a558f7235f498def22ee8345da0c4bb
d4e16d64c907e94582b597ee468f3ffbb85f4563db0b69ac1cb427c978158f5f
4169ec0e485c900b4a5479c9d7afa445353f9d05d8569de0654a9c6c5a28f331
a3f3cdbe8bfa62fc45d5fbd7e3abbca534d7b746cebec10c869f6b328766a1e6
3df1c18b1c5153978ef46e18445629a9e1efa05357e2eea68deaafd1e95ada45
124587f261448297bfe2bc59589f851726ae8d3d5200a7c6738fb1aca61538d8
009c09f3118ec6a3a59a4ec3f07128e13a4e996791c8607f5e01e6652fa955b1
44b1d6e0cc054e581350739403e2c9b99e5758bd3da8b10cd087626272d71e91
444a1f454014e101380c9a72a3147999a393fb6c3e271d10396f6d63ff76d8eb
0209f1944a9119db33581e003d77e87546c4564be83d9a04a2dd0d7f523fe3c1
2d04fe9a46b612a0ee4ac34e61d6449edd043378bd7d07791ec1fd9891ee4778
0e22df51fc7e70931682f78d831ba5f187e7b180316be318eed2f9dae083bb10
38dc7521a2e99fb4c095f74b51dadf8b10fdf680ecbcecb419e6720e8151096d
7c00c24154ac3dad5ffac3ae924afe73d29b3932bffc9f8cbe0ec38aeeec41b2
SH256 hash:
401b5b32c9fbe6e3f372bab1795392758a558f7235f498def22ee8345da0c4bb
MD5 hash:
b3b21d5bbe9301c20d5d04734e047155
SHA1 hash:
2df7bd98faff0b3200ce9304141bef9c39ca15b1
Link:
https://www.unpac.me/results/a89fc907-c2e6-4b42-9ed9-306a9c59addf/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/401b5b32c9fb/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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

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 401b5b32c9fbe6e3f372bab1795392758a558f7235f498def22ee8345da0c4bb

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3232908/
  
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
SHELL_APIManipulates System ShellSHELL32.dll::FindExecutableA
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
KERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetStartupInfoA
KERNEL32.dll::GetDiskFreeSpaceExA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleInputW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasExesW
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileA
KERNEL32.dll::GetFileAttributesW
KERNEL32.dll::GetTempPathA
KERNEL32.dll::SetVolumeMountPointA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW

Comments