MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a173a882ba5f24ab2de4f0df9f41ae2469602e4bbb39c36d0b5327fdf6889608. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a173a882ba5f24ab2de4f0df9f41ae2469602e4bbb39c36d0b5327fdf6889608
SHA3-384 hash: 98b41f2d61841f8ecd4607102f87a5f77d713d1dce8e80a0f121cd82d84de85d21519e53f81fe19b6c398140a832397a
SHA1 hash: 3821a534045704d948cc3b519996a7302f2f5835
MD5 hash: 3d60ae9043dbdab99ae5c015f50de2af
humanhash: montana-potato-equal-illinois
File name:file
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:274'432 bytes
First seen:2023-09-15 16:05:50 UTC
Last seen:2023-09-15 16:43:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash c613086c29a691857f172134e78f9db9 (5 x Smoke Loader, 2 x NetSupport, 2 x Stealc)
ssdeep 3072:5vorfetKXVMFATuNvD16NBI9mSevN5ms7t6HBjNptVtKt0O0Lt9FNa1ZS:dorfxXViAyNboI0S3Wt6hjNpNLt9iHS
Threatray 5'959 similar samples on MalwareBazaar
TLSH T1E344AF12B6D0AC30D6F646318F2ACAE4262EBD619F67669723186B2F7D703E0CD71750
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) (4505/5/1)
File icon (PE):PE icon
dhash icon 002060a082620100 (1 x Smoke Loader)
Reporter jstrosch
Tags:exe Smoke Loader

Intelligence

File Origin
# of uploads :
2
# of downloads :
268
Origin country :
US US
Vendor Threat Intelligence
Malware family:
smoke
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-09-15 16:10:20 UTC
Tags:
loader smoke
Link:
https://app.any.run/tasks/0c22c911-76e2-436f-81c9-5ecf2e72c24b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
SmokeLoader
Create hunting rule
Link:
https://www.capesandbox.com/analysis/448881/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.14688.26326.UNOFFICIAL
Create hunting rule

Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware lolbin packed shell32 smokeloader
Link:
https://www.filescan.io/uploads/650480ee43cd377b1e9eef55/reports/8f4e4ea5-eeda-420f-a76a-86fb2bdf3501/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/a173a882ba5f24ab2de4f0df9f41ae2469602e4bbb39c36d0b5327fdf6889608
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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a8efd602-6099-45cc-8e43-12dea4e77a35
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1309084
Signature
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 dropped file
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
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 signatures2 2 Behavior Graph ID: 1309084 Sample: file.exe Startdate: 15/09/2023 Architecture: WINDOWS Score: 100 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Antivirus detection for URL or domain 2->58 60 4 other signatures 2->60 8 file.exe 2->8         started        11 vvjsubw 2->11         started        13 itjsubw 2->13         started        process3 signatures4 62 Detected unpacking (changes PE section rights) 8->62 15 file.exe 8->15         started        64 Multi AV Scanner detection for dropped file 11->64 66 Machine Learning detection for dropped file 11->66 68 Sample uses process hollowing technique 11->68 18 vvjsubw 11->18         started        20 ShellExperienceHost.exe 11->20         started        23 itjsubw 13->23         started        process5 dnsIp6 78 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 15->78 80 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 15->80 82 Maps a DLL or memory area into another process 15->82 25 explorer.exe 1 3 15->25 injected 84 Checks if the current machine is a virtual machine (disk enumeration) 18->84 86 Creates a thread in another existing process (thread injection) 18->86 30 explorer.exe 3 157 18->30         started        44 192.168.2.1 unknown unknown 20->44 32 explorer.exe 23->32         started        signatures7 process8 dnsIp9 46 file-file-file1.com 194.169.175.127, 49698, 49699, 49715 CLOUDCOMPUTINGDE Germany 25->46 48 host-file-file0.com 25->48 38 C:\Users\user\AppData\Roaming\vvjsubw, PE32 25->38 dropped 40 C:\Users\user\...\vvjsubw:Zone.Identifier, ASCII 25->40 dropped 70 System process connects to network (likely due to code injection or exploit) 25->70 72 Benign windows process drops PE files 25->72 74 Deletes itself after installation 25->74 34 WerFault.exe 10 25->34         started        50 host-file-file0.com 30->50 42 C:\Users\user\AppData\Roaming\itjsubw, PE32 30->42 dropped 76 Hides that the sample has been downloaded from the Internet (zone.identifier) 30->76 36 WerFault.exe 30->36         started        52 host-file-file0.com 32->52 file10 signatures11 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a173a882ba5f24ab2de4f0df9f41ae2469602e4bbb39c36d0b5327fdf6889608/
Threat name:
Win32.Trojan.SmokeLoader
Create hunting rule
Status:
Malicious
First seen:
2023-09-15 16:06:08 UTC
File Type:
PE (Exe)
Extracted files:
37
AV detection:
21 of 23 (91.30%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ufz2rav2l4skwlpe6dpz6qnoeruwalslxm44g3ilkmt735uisyea._file
Verdict:
malicious
Similar samples:
0a43bc29b96992aaec01af4c1a83318e1db149f8d8f216425c371b3a1400bf8e
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16b7127b96fd52bc9438992c6f9fc9b9a7ccc6ebccb2ef22d9d686ee9a8d48bb
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add7fe94ae425db9993337498466aca0865a7a12f2f96f72f6d84fef332d7d87
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c3c0a3be35f6d6b9a28b8577bd2d78628c0a297ac3038aa32eeeddcd491ff221
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cc1af6bdc2a7b31e448b3724797216bf1478f7ce37c1c533a82787ec0457bc61
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ddd9b4a5e0a3fd27f82f6ec1aa18b66e863956a565cc9ba6210550048e62119e
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e2d1e8d99d703d901d0603317b4eed6759eff0dcfa72933d4ea58d4dc242875b
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Smoke Loader
+ 5'949 additional samples on MalwareBazaar
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader botnet:up4 backdoor persistence trojan
Link:
https://tria.ge/reports/230915-tj3gzagc45/
Behaviour
Checks SCSI registry key(s)
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Suspicious use of SetThreadContext
Enumerates connected drives
Deletes itself
Modifies Installed Components in the registry
SmokeLoader
Malware Config
C2 Extraction:
http://host-file-file0.com/
http://file-file-file1.com/
Unpacked files
SH256 hash:
de05cc8de34dab9dda57ad7930c5db793daa0f982c4190c390458453046de280
MD5 hash:
ffb6cf7e4db29a42928a3d5235f2856f
SHA1 hash:
da3cfa237ce4caf7453a846479f22dc628bb85d0
Detections:
SmokeLoaderStage2
Create hunting rule
win_smokeloader_a2
Create hunting rule
Link:
https://www.unpac.me/results/c2a32f3a-b3a8-44d6-aa01-6b29ab0898e5/
Parent samples :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 hash:
a173a882ba5f24ab2de4f0df9f41ae2469602e4bbb39c36d0b5327fdf6889608
MD5 hash:
3d60ae9043dbdab99ae5c015f50de2af
SHA1 hash:
3821a534045704d948cc3b519996a7302f2f5835
Link:
https://www.unpac.me/results/c2a32f3a-b3a8-44d6-aa01-6b29ab0898e5/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a173a882ba5f/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/a173a882ba5f24ab2de4f0df9f41ae2469602e4bbb39c36d0b5327fdf6889608

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__ConsoleCtrl
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 a173a882ba5f24ab2de4f0df9f41ae2469602e4bbb39c36d0b5327fdf6889608

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2710754/
Cape
Cape
https://www.capesandbox.com/analysis/448881/

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