MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c77aeea8df56c68cf64ac5486a0d5774a1bd8dc6f94e3fa8ae447ff78ec12ace. 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


GuLoader


Vendor detections: 15


Intelligence 15 IOCs YARA 2 File information Comments
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SHA256 hash: c77aeea8df56c68cf64ac5486a0d5774a1bd8dc6f94e3fa8ae447ff78ec12ace
SHA3-384 hash: c5c3987a09c0a04ecb0a05c5d435494ae6e0958f8ad51235ee4ee22346a9bdd07ef65c0d9166703c5f5b996e6dd1d219
SHA1 hash: 44b4f6bb6730456a7d88b67ed0c7d90d0140b5a8
MD5 hash: c003ceed32075bc7f2badbb474ea85a6
humanhash: east-lake-lemon-sixteen
File name:file
Download: download sample
Signature GuLoader
Create hunting rule
File size:1'328'640 bytes
First seen:2023-11-01 17:19:23 UTC
Last seen:2023-11-02 00:40:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:1mHjtcfR2p9iZRGJVLdRrSyE0uzlRZLfre43ccbv6oKmf8WDbuGfM:8HjtJae3jnE1zU43cGv6oKmfFDB
TLSH T1BD550251F3F1664EE5EA8636AE2467E0537264237703E35ACC40E1DA382D7DB8BC1693
TrID 66.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.5% (.EXE) Win64 Executable (generic) (10523/12/4)
5.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.0% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter andretavare5
Tags:exe GuLoader


Avatar
andretavare5
Sample downloaded from http://171.22.28.221/files/Ads.exe

Intelligence

File Origin
# of uploads :
17
# of downloads :
312
Origin country :
US US
Vendor Threat Intelligence
Malware family:
smoke
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-11-01 11:36:09 UTC
Tags:
loader privateloader evasion opendir smoke stealer redline risepro stealc ransomware stop autoit sinkhole miner lumma
Link:
https://app.any.run/tasks/08c7509f-291a-49af-a4ad-e4497b7e405c

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/457675/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2509.8722.7807.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Creating a file
Сreating synchronization primitives
DNS request
Connecting to a non-recommended domain
Sending an HTTP GET request
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% subdirectories
Searching for the window
Creating a file in the Program Files subdirectories
Moving a file to the Program Files subdirectory
Searching for synchronization primitives
Launching the process to interact with network services
Running batch commands
Query of malicious DNS domain
Sending a TCP request to an infection source
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Sending an HTTP GET request to an infection source
Enabling autorun by creating a file
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/654288cc4ebf05ac3f41441c/reports/47ead8a6-5da0-4b18-a39a-b8c5c5bcfc51/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/c77aeea8df56c68cf64ac5486a0d5774a1bd8dc6f94e3fa8ae447ff78ec12ace
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:
Upgdsed
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bdb77c4b-7d23-49cb-b27a-68738e96d6b2
Result
Threat name:
Glupteba, SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
rans.troj.adwa.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1335610
Signature
.NET source code contains process injector
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
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)
Contains functionality to inject code into remote processes
Creates a thread in another existing process (thread injection)
Creates HTML files with .exe extension (expired dropper behavior)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Drops script or batch files to the startup folder
Found malware configuration
Found Tor onion address
Injects a PE file into a foreign processes
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
Modifies the hosts file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Sigma detected: Drops script at startup location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes many files with high entropy
Yara detected Generic Downloader
Yara detected Glupteba
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1335610 Sample: file.exe Startdate: 01/11/2023 Architecture: WINDOWS Score: 100 137 Found malware configuration 2->137 139 Malicious sample detected (through community Yara rule) 2->139 141 Antivirus detection for URL or domain 2->141 143 16 other signatures 2->143 11 file.exe 3 2->11         started        13 svchost.exe 1 1 2->13         started        16 powershell.exe 2->16         started        18 3 other processes 2->18 process3 dnsIp4 20 CasPol.exe 15 473 11->20         started        131 23.41.168.93 ZAYO-6461US United States 13->131 133 127.0.0.1 unknown unknown 13->133 25 conhost.exe 16->25         started        135 168.61.215.74 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 18->135 process5 dnsIp6 125 107.167.110.216 OPERASOFTWAREUS United States 20->125 127 193.106.175.190 IQHOSTRU Russian Federation 20->127 129 13 other IPs or domains 20->129 71 C:\Users\...\zahXbLMU0OqN4XL3D4xEQIa6.exe, PE32 20->71 dropped 73 C:\Users\...\yduALDLLPXP5n9xnNRPfTL1l.exe, PE32 20->73 dropped 75 C:\Users\...\yB3dYJgOPCbgu4tCBNoPQnKM.exe, PE32 20->75 dropped 77 234 other malicious files 20->77 dropped 145 Drops script or batch files to the startup folder 20->145 147 Creates HTML files with .exe extension (expired dropper behavior) 20->147 149 Writes many files with high entropy 20->149 27 BKf4HJxmrFqk83dzqJAO0AA3.exe 20->27         started        30 o0g35BL1yYF8gqQZcXdGqBIb.exe 20->30         started        33 yB3dYJgOPCbgu4tCBNoPQnKM.exe 20->33         started        36 15 other processes 20->36 file7 signatures8 process9 dnsIp10 97 C:\Users\user\AppData\Local\...\is-NBVAV.tmp, PE32 27->97 dropped 38 is-NBVAV.tmp 27->38         started        161 Detected unpacking (changes PE section rights) 30->161 163 Contains functionality to inject code into remote processes 30->163 165 Injects a PE file into a foreign processes 30->165 41 o0g35BL1yYF8gqQZcXdGqBIb.exe 30->41         started        115 107.167.110.211 OPERASOFTWAREUS United States 33->115 117 107.167.125.189 OPERASOFTWAREUS United States 33->117 123 5 other IPs or domains 33->123 99 Opera_installer_2311011721100497664.dll, PE32 33->99 dropped 101 C:\Users\...\yB3dYJgOPCbgu4tCBNoPQnKM.exe, PE32 33->101 dropped 103 C:\Users\user\AppData\Local\...\opera_package, PE32 33->103 dropped 111 4 other malicious files 33->111 dropped 167 Writes many files with high entropy 33->167 44 yB3dYJgOPCbgu4tCBNoPQnKM.exe 33->44         started        119 107.167.110.217 OPERASOFTWAREUS United States 36->119 121 104.21.38.126 CLOUDFLARENETUS United States 36->121 105 C:\Users\user\AppData\Local\...\is-CR84J.tmp, PE32 36->105 dropped 107 C:\Users\user\AppData\Local\...\is-HD3N7.tmp, PE32 36->107 dropped 109 Opera_installer_2311011721093337500.dll, PE32 36->109 dropped 113 8 other malicious files 36->113 dropped 169 Detected unpacking (overwrites its own PE header) 36->169 171 Found Tor onion address 36->171 173 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 36->173 175 3 other signatures 36->175 46 Broom.exe 36->46         started        48 W0xRe8NjByiOMdfFZJDIanLP.exe 36->48         started        50 W0xRe8NjByiOMdfFZJDIanLP.exe 36->50         started        52 3 other processes 36->52 file11 signatures12 process13 file14 79 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 38->79 dropped 81 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 38->81 dropped 83 C:\Program Files (x86)\...\is-KH7NB.tmp, PE32 38->83 dropped 93 27 other files (26 malicious) 38->93 dropped 54 IsoBuster_1111.exe 38->54         started        57 net.exe 38->57         started        151 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 41->151 153 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 41->153 155 Maps a DLL or memory area into another process 41->155 159 2 other signatures 41->159 59 explorer.exe 41->59 injected 85 Opera_installer_2311011721131858136.dll, PE32 44->85 dropped 157 Multi AV Scanner detection for dropped file 46->157 87 Opera_installer_2311011721106177876.dll, PE32 48->87 dropped 89 Opera_installer_2311011721200508084.dll, PE32 50->89 dropped 91 C:\Users\user\AppData\Local\...\Install.exe, PE32 52->91 dropped signatures15 process16 file17 95 C:\ProgramData\...\Video Fetcher.exe, PE32 54->95 dropped 61 conhost.exe 57->61         started        63 net1.exe 57->63         started        65 cmd.exe 59->65         started        67 Conhost.exe 59->67         started        process18 process19 69 conhost.exe 65->69         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c77aeea8df56c68cf64ac5486a0d5774a1bd8dc6f94e3fa8ae447ff78ec12ace
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c77aeea8df56c68cf64ac5486a0d5774a1bd8dc6f94e3fa8ae447ff78ec12ace/
Threat name:
ByteCode-MSIL.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2023-11-01 14:10:46 UTC
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=y55o5kg7k3diz5skyvegudkxosq33dog7fhd7kfoir77pdwbflha._file
Verdict:
unknown
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:glupteba family:smokeloader family:xmrig botnet:pub1 backdoor discovery dropper evasion loader miner spyware stealer trojan upx
Link:
https://tria.ge/reports/231101-vwegcaba2s/
Behaviour
Checks SCSI registry key(s)
Creates scheduled task(s)
Enumerates system info in registry
Runs net.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in Program Files directory
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
Checks installed software on the system
Enumerates connected drives
Legitimate hosting services abused for malware hosting/C2
Checks BIOS information in registry
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
UPX packed file
Downloads MZ/PE file
Drops file in Drivers directory
Modifies Windows Firewall
Possible attempt to disable PatchGuard
Stops running service(s)
Modifies boot configuration data using bcdedit
XMRig Miner payload
Glupteba
Glupteba payload
SmokeLoader
Suspicious use of NtCreateUserProcessOtherParentProcess
xmrig
Malware Config
C2 Extraction:
http://host-file-host6.com/
http://host-host-file8.com/
Unpacked files
SH256 hash:
c77aeea8df56c68cf64ac5486a0d5774a1bd8dc6f94e3fa8ae447ff78ec12ace
MD5 hash:
c003ceed32075bc7f2badbb474ea85a6
SHA1 hash:
44b4f6bb6730456a7d88b67ed0c7d90d0140b5a8
Link:
https://www.unpac.me/results/0e67ac76-9ec5-493a-8bae-d57f193561ea/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c77aeea8df56/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/c77aeea8df56c68cf64ac5486a0d5774a1bd8dc6f94e3fa8ae447ff78ec12ace

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.

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by
Cape
Cape
https://www.capesandbox.com/analysis/457675/
  
URLhaus
https://urlhaus.abuse.ch/url/2721934/

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