MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc03d345c41ff614ad5d6c0aeb2c042e8191aabd57605b5eef480547b752c7e7. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fc03d345c41ff614ad5d6c0aeb2c042e8191aabd57605b5eef480547b752c7e7
SHA3-384 hash: 8d9514d92bb66b9fe0f3806da5acd8110f4a2a07fb1117a4f1361c297e264e188c5a3f4a565179a3670503bdbcd67457
SHA1 hash: 08cdb76d2858569f096f270821cbe2634b405836
MD5 hash: 44102490aec7c24c78d42ed9ba4ed322
humanhash: friend-lithium-double-cardinal
File name:44102490aec7c24c78d42ed9ba4ed322.exe
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:424'960 bytes
First seen:2024-09-06 07:24:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e19b900458227bd7277043a16fccc5cb (1 x Smoke Loader)
ssdeep 6144:bFmU3bwb5eu3bGukTGYSq4c1G0OqKG6nNUil:b8Kb85eu3ajTP74rbqKG6NF
TLSH T17794B003A2E2BC60F5E147359C2AC6EC353FB9514E2B667B22587F1F38701A2D566339
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 :
420
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
44102490aec7c24c78d42ed9ba4ed322.exe
Verdict:
Malicious activity
Analysis date:
2024-09-06 07:50:20 UTC
Tags:
loader smokeloader
Link:
https://app.any.run/tasks/f4e01792-27e9-44e8-bff1-ad4e814d688b

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=66daae54f3d7ccf99f9020e1
Tags:
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:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
epmicrosoft_visual_cc fingerprint microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/66daae5688ccac59907cbcfe/reports/bda27353-3a5d-4d2a-b6f3-b80b6ab9397c/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/fc03d345c41ff614ad5d6c0aeb2c042e8191aabd57605b5eef480547b752c7e7
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/1592703c-efd7-4725-8f37-943b91c5bbc4
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1505449
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
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: 1505449 Sample: eYkBJj8IKs.exe Startdate: 06/09/2024 Architecture: WINDOWS Score: 100 23 epohe.ru 2->23 37 Suricata IDS alerts for network traffic 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 5 other signatures 2->43 7 eYkBJj8IKs.exe 2->7         started        10 rrjbcba 2->10         started        12 rrjbcba 2->12         started        signatures3 process4 signatures5 45 Detected unpacking (changes PE section rights) 7->45 47 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->47 49 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 7->49 57 3 other signatures 7->57 14 explorer.exe 95 3 7->14 injected 51 Multi AV Scanner detection for dropped file 10->51 53 Machine Learning detection for dropped file 10->53 55 Maps a DLL or memory area into another process 10->55 process6 dnsIp7 25 177.222.41.236, 60205, 60208, 60209 TelefonicaCelulardeBoliviaSABO Bolivia 14->25 27 211.181.24.132, 60226, 60227, 60228 LGDACOMLGDACOMCorporationKR Korea Republic of 14->27 19 C:\Users\user\AppData\Roaming\rrjbcba, PE32 14->19 dropped 21 C:\Users\user\...\rrjbcba:Zone.Identifier, ASCII 14->21 dropped 29 System process connects to network (likely due to code injection or exploit) 14->29 31 Benign windows process drops PE files 14->31 33 Deletes itself after installation 14->33 35 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->35 file8 signatures9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/fc03d345c41ff614ad5d6c0aeb2c042e8191aabd57605b5eef480547b752c7e7
Detection:
smokeloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fc03d345c41ff614ad5d6c0aeb2c042e8191aabd57605b5eef480547b752c7e7/
Threat name:
Win32.Trojan.Smokeloader
Create hunting rule
Status:
Malicious
First seen:
2024-09-04 07:37:33 UTC
File Type:
PE (Exe)
Extracted files:
38
AV detection:
32 of 38 (84.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7qb5groed73bjlk5nqfowlaef2azdkv5k5qfwxxpjacupn2sy7tq._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/240906-h8y1astcnm/
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/65786f3d-2063-478c-b37a-b19fe14ba18b
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/3fb7fb40-b94c-4514-bda2-cf37a2b9bbd9/
Parent samples :
726a67046152f94bf0372b95325f029d834f3bd3ce9246bdd76f03efac45195e
0923186058b76b52069af9fd282af6c98766179cbdd524e4d941e0bf44802781
fc03d345c41ff614ad5d6c0aeb2c042e8191aabd57605b5eef480547b752c7e7
a2aa2e5a773159427a463625a72c84ae6843122a4427013913fe95abe9bfbe76
ec73ce294407ff3abb67d0b0bcb3871d7c54b6984f3c3783eee05254e0852ff9
1025c4755d708f087560cd1eb2babd1274a63c82c7f0133ce9b05ef5906b2133
SH256 hash:
fc03d345c41ff614ad5d6c0aeb2c042e8191aabd57605b5eef480547b752c7e7
MD5 hash:
44102490aec7c24c78d42ed9ba4ed322
SHA1 hash:
08cdb76d2858569f096f270821cbe2634b405836
Link:
https://www.unpac.me/results/3fb7fb40-b94c-4514-bda2-cf37a2b9bbd9/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fc03d345c41f/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/fc03d345c41ff614ad5d6c0aeb2c042e8191aabd57605b5eef480547b752c7e7

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 fc03d345c41ff614ad5d6c0aeb2c042e8191aabd57605b5eef480547b752c7e7

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3112840/
  
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::FindNextVolumeMountPointA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetDiskFreeSpaceExA
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::PeekConsoleInputA
KERNEL32.dll::ReadConsoleInputW
KERNEL32.dll::GetConsoleAliasExesLengthW
KERNEL32.dll::GetConsoleDisplayMode
KERNEL32.dll::GetConsoleAliasExesA
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkA
KERNEL32.dll::CreateFileMappingW
KERNEL32.dll::GetFileAttributesW
KERNEL32.dll::GetTempPathA
KERNEL32.dll::SetVolumeMountPointA

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