MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28b289fecdb01bc1a8d24240d6976cac8a054ab8b825d3cf01a1841634ebbfec. 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


Stealc


Vendor detections: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 28b289fecdb01bc1a8d24240d6976cac8a054ab8b825d3cf01a1841634ebbfec
SHA3-384 hash: c6798808785c9b3046a1e71c49a3d5345de82ca3d1d2ff2168772e013f026873a299d1228fe42d79a16fbacdd065c8f8
SHA1 hash: bdb65a70b0c66d750f488cb6341210ef93346eb3
MD5 hash: e336ebf7f013e184ce5eb7fc6e6ec048
humanhash: florida-wolfram-yankee-sad
File name:SecuriteInfo.com.Win32.DropperX-gen.16213.14964
Download: download sample
Signature Stealc
Create hunting rule
File size:367'617 bytes
First seen:2024-04-04 17:37:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ec3abec3d94db3f742ac97930ba3d6d5 (4 x Stealc, 1 x TeamBot)
ssdeep 6144:ZnpPRYDpsU7pfdgBHgR9rGr+7sbUKE0aXZe8VdHHLyyBFXRwKiwi8:BYKU7ddgBHkGnbrE0aXZe0QyFil8
TLSH T13B74E16172E0DC32F1A379705979CAA15A3FFC621A78819B76872BAE1FA13C14D31713
TrID 67.1% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.2% (.EXE) Win32 Executable (generic) (4504/4/1)
2.4% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 5bb27e626a32530a (4 x Stealc)
Reporter SecuriteInfoCom
Tags:exe Stealc

Intelligence

File Origin
# of uploads :
1
# of downloads :
276
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
28b289fecdb01bc1a8d24240d6976cac8a054ab8b825d3cf01a1841634ebbfec.exe
Verdict:
Malicious activity
Analysis date:
2024-04-04 17:40:36 UTC
Tags:
loader gcleaner stealer stealc
Link:
https://app.any.run/tasks/bc6e8d04-0bfa-4862-86e4-a939544dc86f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending an HTTP GET request to an infection source
Creating a file in the %temp% directory
Сreating synchronization primitives
Creating a process from a recently created file
Creating a window
Searching for synchronization primitives
Creating a file
DNS request
Connecting to a non-recommended domain
Connection attempt
Launching the default Windows debugger (dwwin.exe)
Sending an HTTP POST request
Searching for the window
Transferring files using the Background Intelligent Transfer Service (BITS)
Sending a custom TCP request
Connection attempt to an infection source
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint overlay packed stealc
Link:
https://www.filescan.io/uploads/660ee584ec04992a87db154b/reports/f898f0ee-3e4b-4fdc-be4d-38ac80996ccc/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/28b289fecdb01bc1a8d24240d6976cac8a054ab8b825d3cf01a1841634ebbfec
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:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/15c2672f-cf24-4ca0-af71-066eb86796af
Result
Threat name:
Mars Stealer, PureLog Stealer, Stealc, V
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1420406
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Checks if the current machine is a virtual machine (disk enumeration)
Contains functionality to inject code into remote processes
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Searches for specific processes (likely to inject)
Snort IDS alert for network traffic
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Crypto Currency Wallets
Tries to steal Mail credentials (via file / registry access)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected Generic Downloader
Yara detected Mars stealer
Yara detected PureLog Stealer
Yara detected Stealc
Yara detected Vidar stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1420406 Sample: SecuriteInfo.com.Win32.Drop... Startdate: 04/04/2024 Architecture: WINDOWS Score: 100 62 westus2-2.in.applicationinsights.azure.com 2->62 64 westus2-2.in.ai.privatelink.monitor.azure.com 2->64 66 2 other IPs or domains 2->66 94 Snort IDS alert for network traffic 2->94 96 Found malware configuration 2->96 98 Malicious sample detected (through community Yara rule) 2->98 100 15 other signatures 2->100 12 SecuriteInfo.com.Win32.DropperX-gen.16213.14964.exe 1 3 2->12         started        signatures3 process4 dnsIp5 72 185.172.128.90, 49701, 80 NADYMSS-ASRU Russian Federation 12->72 74 185.172.128.144, 49704, 80 NADYMSS-ASRU Russian Federation 12->74 76 185.172.128.65, 49702, 49703, 49720 NADYMSS-ASRU Russian Federation 12->76 58 C:\Users\user\AppData\Local\Temp\u2bk.1.exe, PE32 12->58 dropped 60 C:\Users\user\AppData\Local\Temp\u2bk.0.exe, PE32 12->60 dropped 122 Detected unpacking (changes PE section rights) 12->122 124 Detected unpacking (overwrites its own PE header) 12->124 17 u2bk.0.exe 12->17         started        20 u2bk.1.exe 20 8 12->20         started        file6 signatures7 process8 dnsIp9 84 Detected unpacking (changes PE section rights) 17->84 86 Detected unpacking (overwrites its own PE header) 17->86 88 Contains functionality to inject code into remote processes 17->88 92 3 other signatures 17->92 23 u2bk.0.exe 71 17->23         started        28 MpCmdRun.exe 17->28         started        68 svc.iolo.com 20.157.87.45, 49706, 49718, 80 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 20->68 90 Checks if the current machine is a virtual machine (disk enumeration) 20->90 30 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 14 14 20->30         started        signatures10 process11 dnsIp12 70 185.172.128.209, 49705, 80 NADYMSS-ASRU Russian Federation 23->70 50 C:\Users\user\AppData\...\JKJEHJKJEB.exe, PE32 23->50 dropped 52 C:\Users\user\AppData\...\softokn3[1].dll, PE32 23->52 dropped 54 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 23->54 dropped 56 11 other files (7 malicious) 23->56 dropped 106 Tries to steal Mail credentials (via file / registry access) 23->106 108 Found many strings related to Crypto-Wallets (likely being stolen) 23->108 110 Tries to harvest and steal ftp login credentials 23->110 118 3 other signatures 23->118 32 cmd.exe 23->32         started        35 conhost.exe 28->35         started        112 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 30->112 114 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 30->114 116 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 30->116 file13 signatures14 process15 signatures16 80 Uses ping.exe to sleep 32->80 82 Uses ping.exe to check the status of other devices and networks 32->82 37 JKJEHJKJEB.exe 32->37         started        40 conhost.exe 32->40         started        process17 signatures18 102 Antivirus detection for dropped file 37->102 104 Multi AV Scanner detection for dropped file 37->104 42 cmd.exe 37->42         started        process19 signatures20 120 Uses ping.exe to sleep 42->120 45 PING.EXE 42->45         started        48 conhost.exe 42->48         started        process21 dnsIp22 78 2.2.2.2 FranceTelecom-OrangeFR France 45->78
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/28b289fecdb01bc1a8d24240d6976cac8a054ab8b825d3cf01a1841634ebbfec
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/28b289fecdb01bc1a8d24240d6976cac8a054ab8b825d3cf01a1841634ebbfec/
Threat name:
Win32.Spyware.Stealc
Create hunting rule
Status:
Malicious
First seen:
2024-04-04 17:38:11 UTC
File Type:
PE (Exe)
Extracted files:
21
AV detection:
15 of 24 (62.50%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=fczit7wnwan4dkgsijannf3mvsfaksvyxas5htybugcbmnhlx7wa._file
Verdict:
malicious
Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:stealc family:zgrat discovery rat spyware stealer
Link:
https://tria.ge/reports/240404-v7p28adg6y/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Detect ZGRat V1
Stealc
ZGRat
Malware Config
C2 Extraction:
http://185.172.128.209
Unpacked files
SH256 hash:
929c311d58965ae456d96ca118fb7fcabf98699e02d30e0913ddf08a06e8d0c4
MD5 hash:
08aaaa25ef78eff19a96c02905e84004
SHA1 hash:
6940d4f0b6426d28d6f6821c2d531343eedb121d
Link:
https://www.unpac.me/results/b32f7a76-fb79-4f3c-bca1-fcc08435e3a9/
SH256 hash:
28b289fecdb01bc1a8d24240d6976cac8a054ab8b825d3cf01a1841634ebbfec
MD5 hash:
e336ebf7f013e184ce5eb7fc6e6ec048
SHA1 hash:
bdb65a70b0c66d750f488cb6341210ef93346eb3
Link:
https://www.unpac.me/results/b32f7a76-fb79-4f3c-bca1-fcc08435e3a9/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/28b289fecdb0/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/28b289fecdb01bc1a8d24240d6976cac8a054ab8b825d3cf01a1841634ebbfec

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:Windows_Trojan_Generic_2993e5a5
Create hunting rule
Author:Elastic Security

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Stealc

Executable exe 28b289fecdb01bc1a8d24240d6976cac8a054ab8b825d3cf01a1841634ebbfec

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2801033/
  
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_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindFirstVolumeMountPointW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleOutputA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetConsoleOutputCP
KERNEL32.dll::SetConsoleTitleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesLengthW
KERNEL32.dll::GetConsoleAliasExesLengthW
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileW

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