MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5f14840be71dfc7f39039d88969a0c73efcacf541aeca115814958373ce5a2d. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b5f14840be71dfc7f39039d88969a0c73efcacf541aeca115814958373ce5a2d
SHA3-384 hash: 2e13afa11a2b423ff00f081d1cc98aeb601327cff851e95a25589b48746491220e3a4f76f426034e9147936e2fe473f8
SHA1 hash: 726ec15a277f6424ffc88704d4e25130f121a718
MD5 hash: 43a14604fd708dea1c39df16791c8565
humanhash: nine-angel-pip-mockingbird
File name:43a14604fd708dea1c39df16791c8565
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:680'448 bytes
First seen:2023-05-20 20:40:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:NCa4IoLcpkVxr2lhFq7rsTtHmc1pBWMmaG:Etc8r2lDMoZG6MaG
Threatray 144 similar samples on MalwareBazaar
TLSH T15AE4403C2DBA25E3C038F7AED6D050B3B27B9923B71F8A5514C307663A769216BC251D
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter zbetcheckin
Tags:32 exe Smoke Loader

Intelligence

File Origin
# of uploads :
1
# of downloads :
277
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
smoke
Create hunting rule
ID:
1
File name:
43a14604fd708dea1c39df16791c8565
Verdict:
Malicious activity
Analysis date:
2023-05-20 20:43:31 UTC
Tags:
loader smoke trojan stealer
Link:
https://app.any.run/tasks/3cc42464-8d75-44a6-8fcf-1cec48ca74d3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.26369.5991.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching a process
Creating a file in the %temp% directory
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin packed
Link:
https://www.filescan.io/uploads/6469305e78d40a4d0411e97c/reports/83e5989c-d3ae-45b4-a95b-e59634f26d57/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/b5f14840be71dfc7f39039d88969a0c73efcacf541aeca115814958373ce5a2d
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c0526d92-1286-4075-bdbb-265473896aa9
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1238294
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large strings
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
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
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
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)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses ping.exe to check the status of other devices and networks
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 871289 Sample: kd3lENw4ru.exe Startdate: 20/05/2023 Architecture: WINDOWS Score: 100 66 Multi AV Scanner detection for domain / URL 2->66 68 Found malware configuration 2->68 70 Malicious sample detected (through community Yara rule) 2->70 72 10 other signatures 2->72 10 kd3lENw4ru.exe 3 2->10         started        14 rtgcait 3 2->14         started        16 7FAA.exe 2->16         started        process3 file4 54 C:\Users\user\AppData\...\kd3lENw4ru.exe.log, ASCII 10->54 dropped 108 Uses schtasks.exe or at.exe to add and modify task schedules 10->108 110 Uses ping.exe to check the status of other devices and networks 10->110 112 Injects a PE file into a foreign processes 10->112 18 kd3lENw4ru.exe 10->18         started        114 Multi AV Scanner detection for dropped file 14->114 116 Machine Learning detection for dropped file 14->116 21 rtgcait 14->21         started        signatures5 process6 signatures7 74 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 18->74 76 Maps a DLL or memory area into another process 18->76 78 Checks if the current machine is a virtual machine (disk enumeration) 18->78 23 explorer.exe 6 18->23 injected 28 7FAA.exe 18->28         started        30 PING.EXE 18->30         started        32 3 other processes 18->32 80 Creates a thread in another existing process (thread injection) 21->80 process8 dnsIp9 58 akmedia.in 192.185.150.20, 49700, 49702, 80 UNIFIEDLAYER-AS-1US United States 23->58 60 167.88.170.23, 49701, 80 PONYNETUS United States 23->60 62 192.168.2.1 unknown unknown 23->62 48 C:\Users\user\AppData\Roaming\rtgcait, PE32 23->48 dropped 50 C:\Users\user\AppData\Local\Temp\7FAA.exe, PE32 23->50 dropped 52 C:\Users\user\...\rtgcait:Zone.Identifier, ASCII 23->52 dropped 94 System process connects to network (likely due to code injection or exploit) 23->94 96 Benign windows process drops PE files 23->96 98 Injects code into the Windows Explorer (explorer.exe) 23->98 106 3 other signatures 23->106 34 7FAA.exe 3 23->34         started        37 explorer.exe 24 23->37         started        39 explorer.exe 23->39         started        100 Multi AV Scanner detection for dropped file 28->100 102 Machine Learning detection for dropped file 28->102 104 Injects a PE file into a foreign processes 28->104 41 7FAA.exe 28->41         started        64 127.0.0.1 unknown unknown 30->64 file10 signatures11 process12 signatures13 82 Multi AV Scanner detection for dropped file 34->82 84 Machine Learning detection for dropped file 34->84 86 Injects a PE file into a foreign processes 34->86 43 7FAA.exe 3 34->43         started        88 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 37->88 90 Tries to steal Mail credentials (via file / registry access) 37->90 92 Tries to harvest and steal browser information (history, passwords, etc) 37->92 process14 file15 56 C:\Users\user\AppData\Local\...\7FAA.exe, PE32 43->56 dropped 46 cmd.exe 43->46         started        process16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b5f14840be71dfc7f39039d88969a0c73efcacf541aeca115814958373ce5a2d/
Threat name:
Win32.Trojan.Smokeloader
Create hunting rule
Status:
Malicious
First seen:
2023-05-20 18:25:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
36
AV detection:
17 of 36 (47.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wxyuqqf6ohp4p44qhhmis2nay47pzlhvigxmuekycskyg46oliwq._file
Verdict:
malicious
Similar samples:
1829581f83638a4bc9de6c84afae429ec73d77b157985b931f11279a59103702
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2b2679c17500482ca108a39319298bc980c36c9f5783da9fde4444747384222b
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3210772860f0a22acd9e1d179a20f9d1dd23ef7f79a8dca7c8bac06c59877fe2
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373834225a126abde8256049e073b8e07bd06c7563f929783f441a1a63a88d1b
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5fe1bc00d255691c7a2cd1a30f903538e3bce1cba7996d5b49bcf78dac1917ff
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7c0790ce5a7cfd7a3ab0af70a4766b7003bdf8eb2e366f5c74f609c57c34f4bb
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7fe2fa0849f717967c9e8b3429698990ffc229d63dc74c58ee957c639cc9705b
Smoke Loader
bf9b23735189bb58ae003a5e564b30122cf9a456af4fcff008a16fabe310697c
Smoke Loader
d5e89bbe95eb6e5d463d3b52ffe77724ea81eac11560a068d821220029de405f
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fd64e524e0f85d83e28e36f15bcb4033b508abcb3695c02612f56e4122b8beb7
Smoke Loader
+ 134 additional samples on MalwareBazaar
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader botnet:swo backdoor trojan
Link:
https://tria.ge/reports/230520-zgek1shb6z/
Behaviour
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Program crash
Suspicious use of SetThreadContext
SmokeLoader
Malware Config
C2 Extraction:
http://akmedia.in/js/k/index.php
http://bethesdaserukam.org/setting/k/index.php
http://stemschools.in/js/k/index.php
http://dejarestaurant.com/wp-admin/js/k/index.php
http://moabscript.ir/wp-admin/js/k/index.php
http://nicehybridseeds.com/image/catalog/k/index.php
http://imaker.io/picktail/js/k/index.php
http://nanavatisworld.com/assets/js/k/index.php
http://smartbubox.com/img/k/index.php
http://krigenpharmaceuticals.com/js/k/index.php
Unpacked files
SH256 hash:
a7e471f7bc560488312d57e885bb4cfc423587a0d84abbb3073a820f7cd0e209
MD5 hash:
e7709a907be0cdb6ff7eb99daee97c6c
SHA1 hash:
bb3f6871c40f54070b53947bf6958d410ea8bac1
Link:
https://www.unpac.me/results/f5a0d052-1094-4697-b88c-7a97180b394d/
SH256 hash:
98f8ba1e70656490215b36c6d9517cd8ea68560d5c7af73c84198c0674e24a86
MD5 hash:
c1e49bc07f6379d8b8eeb28b5184ce7a
SHA1 hash:
ad83888bd5ee03c4f26ef3ed75e615a70f469510
Link:
https://www.unpac.me/results/f5a0d052-1094-4697-b88c-7a97180b394d/
SH256 hash:
178ab956fb83905d73e4fb54336f9107498187a12c54fd2d7766f55b0c46d728
MD5 hash:
fba334f18769ad21a6de7cac24a22059
SHA1 hash:
a34d5ce5b60356666213c6a2aa727e393d76a188
Detections:
SmokeLoaderStage2
Create hunting rule
win_smokeloader_a2
Create hunting rule
Link:
https://www.unpac.me/results/f5a0d052-1094-4697-b88c-7a97180b394d/
Parent samples :
cecaa5c6af9506927a29ec08ee59d12213f1396711b1a839f4bec5eb25dd6c2c
acb3694eed3ff5d171c272be0e30fb9efe6454b83ee523a33a8e64b89e0e2177
999ae9856f3df7405d491edac3bdac882351623f63586472336957bc379285d6
d5202e8a72bb3eb70009068ff5d84a9babc1d99ce62f8d402db1d70903b972cd
8fed65cfe66b630bcf70af9d1cbaaf79989d6787f1bd045e250511f8af33fb35
2d9311e19acadef4104d5e336f0f69156358bc8ad5dedac7432e60116b638a9d
8807e165003544956853bd7362822a3d9fabe16c313d5c65ca2126ef73b89dc3
6f6b1424cc2e428a51edd10920d1defbf31b47976c6f55f1663e95e45d5b9c91
50ae1cc086fc3faeeb453c5923097b9328b63bbe19ed9f9c226bbb1b49a1917d
7a07dcc4ffcebbc11c2120d8fe342565e0dcbb11d76bbf43b1f0c7f04ee8fe91
917a2d9bfedad8aea9026f4c980573d7dd621b7f547c828a49b5c46c4ab369c6
ca747dce51bbf9ebd7076df13879ebb2a33bdc2a0d67d00866e5d439b67202e5
4c9367e9e7fa7992c5aad7d16ac8f4f8c8cc8eb7478881cfaa0acfd3f39a2a52
c35ada94ae787a3ebd289a8cdf9bda34ba7c18ab14dd8335ee373ac96befb24c
4c0241cc1e92aa8ca713ae65cd6b86eb29cacbad2f0799068361eaa3f1dec75a
b5f14840be71dfc7f39039d88969a0c73efcacf541aeca115814958373ce5a2d
SH256 hash:
b5f14840be71dfc7f39039d88969a0c73efcacf541aeca115814958373ce5a2d
MD5 hash:
43a14604fd708dea1c39df16791c8565
SHA1 hash:
726ec15a277f6424ffc88704d4e25130f121a718
Link:
https://www.unpac.me/results/f5a0d052-1094-4697-b88c-7a97180b394d/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b5f14840be71/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/b5f14840be71dfc7f39039d88969a0c73efcacf541aeca115814958373ce5a2d

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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 b5f14840be71dfc7f39039d88969a0c73efcacf541aeca115814958373ce5a2d

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2536804/

Comments


Avatar
zbet commented on 2023-05-20 20:40:27 UTC

url : hxxp://167.88.170.23/swo/swo.exe