MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ed51744a40d59eb9079f26bbb57ddc76bf4b9d60ee1d575adf731b2571559ceb. 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 4 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ed51744a40d59eb9079f26bbb57ddc76bf4b9d60ee1d575adf731b2571559ceb
SHA3-384 hash: f0184c8d33b3efa93e339dc8f2f624e46c95c1967bc86fe6718a76edf632e2704c8e7ba4f96539dce08b15a14fc0dde5
SHA1 hash: a9cb5931ddcc0cf8e5b886270bffdd14472e5248
MD5 hash: 9705b269886bfc7a262c12486f5e6802
humanhash: december-island-winter-september
File name:9705b269886bfc7a262c12486f5e6802
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:185'344 bytes
First seen:2023-12-04 01:37:22 UTC
Last seen:2023-12-04 03:37:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 492605aa7b8aefac51399cf6619dc6cf (1 x Smoke Loader, 1 x Rhadamanthys, 1 x njrat)
ssdeep 3072:OBfsGpcW25Gp+VIVnZqJQ1m9yGV0iT1gOcKFxq25KnB+WWxm78w2AAAvSFfG:SsGckEKnZU2GVBgWKB+hgv2A+G
TLSH T157044B412398D9F3F1AA0B7500E0BD3D4D6CA9F66FAF8AA7B7C51E5E49289C01134B47
TrID 32.2% (.EXE) Win64 Executable (generic) (10523/12/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4505/5/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon c49081903c52b2b6 (1 x njrat, 1 x Smoke Loader, 1 x Rhadamanthys)
Reporter zbetcheckin
Tags:32 exe Smoke Loader

Intelligence

File Origin
# of uploads :
2
# of downloads :
326
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
9705b269886bfc7a262c12486f5e6802
Verdict:
Malicious activity
Analysis date:
2023-12-04 01:40:07 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4b9bc948-6ffb-47d9-8e57-b6acd1540b77

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/462206/
Detection(s):
SecuriteInfo.com.Win32.DropperX-gen.28029.7513.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Sending an HTTP GET request
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Creating a window
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Stealing user critical data
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Enabling autorun by creating a file
Sending an HTTP POST request to an infection source
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware packed xpack
Link:
https://www.filescan.io/uploads/656d2d7b6d3af192267a0603/reports/f2e1cad1-808d-4dd5-8600-f98e3a6ad581/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/ed51744a40d59eb9079f26bbb57ddc76bf4b9d60ee1d575adf731b2571559ceb
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/7572b014-e5b7-420e-8c70-fbef6ab11154
Result
Threat name:
Remcos, RHADAMANTHYS, SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1352839
Signature
.NET source code contains potential unpacker
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)
Creates autostart registry keys with suspicious names
Creates multiple autostart registry keys
Deletes itself after installation
Drops PE files to the user root directory
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Sigma detected: Remcos
Snort IDS alert for network traffic
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 Bitcoin Wallet information
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)
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected RHADAMANTHYS Stealer
Yara detected SmokeLoader
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1352839 Sample: tjiXY8ehk5.exe Startdate: 04/12/2023 Architecture: WINDOWS Score: 100 84 atillapro.com 2->84 86 geoplugin.net 2->86 108 Snort IDS alert for network traffic 2->108 110 Multi AV Scanner detection for domain / URL 2->110 112 Found malware configuration 2->112 114 11 other signatures 2->114 12 tjiXY8ehk5.exe 1 2 2->12         started        16 srjvcsc 2->16         started        18 srjvcsc 2->18         started        signatures3 process4 file5 70 C:\Users\Public\UnityStub.exe, PE32 12->70 dropped 140 Creates multiple autostart registry keys 12->140 142 Drops PE files to the user root directory 12->142 144 Maps a DLL or memory area into another process 12->144 20 tjiXY8ehk5.exe 12->20         started        23 srjvcsc 16->23         started        146 Multi AV Scanner detection for dropped file 18->146 148 Machine Learning detection for dropped file 18->148 25 srjvcsc 18->25         started        signatures6 process7 signatures8 116 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 20->116 118 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 20->118 120 Maps a DLL or memory area into another process 20->120 27 explorer.exe 45 9 20->27 injected 122 Checks if the current machine is a virtual machine (disk enumeration) 23->122 124 Creates a thread in another existing process (thread injection) 23->124 process9 dnsIp10 90 atillapro.com 185.196.8.205, 49712, 49715, 49723 SIMPLECARRER2IT Switzerland 27->90 92 45.153.184.199, 49713, 49714, 80 MVPShttpswwwmvpsnetEU Bulgaria 27->92 72 C:\Users\user\AppData\Roaming\srjvcsc, PE32 27->72 dropped 74 C:\Users\user\AppData\Local\Temp\3B86.exe, PE32 27->74 dropped 76 C:\Users\user\AppData\Local\Temp\37FB.exe, PE32 27->76 dropped 78 C:\Users\user\...\srjvcsc:Zone.Identifier, ASCII 27->78 dropped 150 System process connects to network (likely due to code injection or exploit) 27->150 152 Benign windows process drops PE files 27->152 154 Injects code into the Windows Explorer (explorer.exe) 27->154 156 3 other signatures 27->156 32 3B86.exe 14 27->32         started        35 UnityStub.exe 27->35         started        37 UnityStub.exe 27->37         started        39 11 other processes 27->39 file11 signatures12 process13 dnsIp14 94 Multi AV Scanner detection for dropped file 32->94 96 Machine Learning detection for dropped file 32->96 98 Maps a DLL or memory area into another process 32->98 42 3B86.exe 32->42         started        46 UnityStub.exe 35->46         started        48 UnityStub.exe 35->48         started        50 UnityStub.exe 35->50         started        52 UnityStub.exe 37->52         started        88 95.214.25.106, 1677, 49718, 49720 CMCSUS Germany 39->88 100 System process connects to network (likely due to code injection or exploit) 39->100 102 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 39->102 104 Tries to steal Mail credentials (via file / registry access) 39->104 106 3 other signatures 39->106 54 37FB.exe 1 39->54         started        56 remcos.exe 39->56         started        58 remcos.exe 39->58         started        60 wmpshare.exe 39->60         started        signatures15 process16 file17 68 C:\ProgramData\Remcos\remcos.exe, PE32 42->68 dropped 126 Creates autostart registry keys with suspicious names 42->126 128 Creates multiple autostart registry keys 42->128 62 remcos.exe 42->62         started        130 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 46->130 132 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 46->132 134 Maps a DLL or memory area into another process 46->134 136 Checks if the current machine is a virtual machine (disk enumeration) 52->136 138 Creates a thread in another existing process (thread injection) 52->138 signatures18 process19 signatures20 158 Multi AV Scanner detection for dropped file 62->158 160 Machine Learning detection for dropped file 62->160 162 Maps a DLL or memory area into another process 62->162 65 remcos.exe 62->65         started        process21 dnsIp22 80 185.157.162.241, 1303, 49716 OBE-EUROPEObenetworkEuropeSE Sweden 65->80 82 geoplugin.net 178.237.33.50, 49717, 80 ATOM86-ASATOM86NL Netherlands 65->82
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ed51744a40d59eb9079f26bbb57ddc76bf4b9d60ee1d575adf731b2571559ceb
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ed51744a40d59eb9079f26bbb57ddc76bf4b9d60ee1d575adf731b2571559ceb/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2023-12-03 23:31:56 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
17 of 23 (73.91%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5vixissa2wplsb47e253k7o4o27uxhla5yovoww7omnsk4kvttvq._file
Verdict:
malicious
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:remcos family:rhadamanthys family:smokeloader botnet:6699 botnet:remotehost backdoor collection persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/231204-b2dmfsgd74/
Behaviour
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks computer location settings
Deletes itself
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Remcos
Rhadamanthys
SmokeLoader
Suspicious use of NtCreateUserProcessOtherParentProcess
Malware Config
C2 Extraction:
http://atillapro.com/
https://atillapro.com/
185.157.162.241:1303
Unpacked files
SH256 hash:
5fe3ccefc1b46f38dee66bf758cf616dc5aeb6e95b9a1ab4f0cef265efb7b57c
MD5 hash:
7ca285e5c2ffb4aa9a3919f358224f25
SHA1 hash:
1fd5503d6bf5a7612412218901a2a704978b3399
Detections:
SmokeLoaderStage2
Create hunting rule
win_smokeloader_a2
Create hunting rule
Link:
https://www.unpac.me/results/fa47ecaf-7fde-4b3f-812e-82907012ebb8/
SH256 hash:
ed51744a40d59eb9079f26bbb57ddc76bf4b9d60ee1d575adf731b2571559ceb
MD5 hash:
9705b269886bfc7a262c12486f5e6802
SHA1 hash:
a9cb5931ddcc0cf8e5b886270bffdd14472e5248
Link:
https://www.unpac.me/results/fa47ecaf-7fde-4b3f-812e-82907012ebb8/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ed51744a40d5/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/ed51744a40d59eb9079f26bbb57ddc76bf4b9d60ee1d575adf731b2571559ceb

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:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table

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 ed51744a40d59eb9079f26bbb57ddc76bf4b9d60ee1d575adf731b2571559ceb

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2737084/
Cape
Cape
https://www.capesandbox.com/analysis/462206/

Comments


Avatar
zbet commented on 2023-12-04 01:37:23 UTC

url : hxxp://45.153.184.199/smkpro.exe