MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 71d37f4ff2c620d237f8d6e9864556b5888747468b51248c3940264a359bbe55. 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: 17


Intelligence 17 IOCs YARA File information Comments

SHA256 hash: 71d37f4ff2c620d237f8d6e9864556b5888747468b51248c3940264a359bbe55
SHA3-384 hash: f710778b4023c40bb86e6470ff7685ea2e27753edfd00843f15c4a98b8453c2e68641f94511f7f7482590abbac2875bb
SHA1 hash: d8151f0802da077778176047ab3a3cfed1563d41
MD5 hash: 5f6a533eb423b08edd6860c7207c6bae
humanhash: glucose-spaghetti-london-friend
File name:5f6a533eb423b08edd6860c7207c6bae.exe
Download: download sample
Signature Stealc
File size:2'383'360 bytes
First seen:2023-12-15 18:15:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 646167cce332c1c252cdcb1839e0cf48 (8'473 x RedLineStealer, 4'851 x Amadey, 290 x Smoke Loader)
ssdeep 49152:69OzsGwNJp72gr0XQZ/8VM+giH+pmGj1DrGpc85Rwxh:FfwnEg4hVvNCm6GpR5Rw
Threatray 23 similar samples on MalwareBazaar
TLSH T1E4B5232796D88472E8D4A3717AF50346273738E108BAC66B2771B48FD872AD8E531773
TrID 41.1% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
22.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
11.8% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
7.5% (.EXE) Win64 Executable (generic) (10523/12/4)
4.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon f8f0f4c8c8c8d8f0 (8'803 x RedLineStealer, 5'078 x Amadey, 288 x Smoke Loader)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
91.92.249.253:50500

Intelligence


File Origin
# of uploads :
1
# of downloads :
282
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Creating a process with a hidden window
Creating a window
Сreating synchronization primitives
Searching for the window
Creating a file
Unauthorized injection to a recently created process
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
advpack anti-vm CAB control explorer installer lolbin lolbin packed replace rundll32 setupapi sfx shell32
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
Verdict:
Malicious
Result
Threat name:
LummaC Stealer, RedLine, RisePro Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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)
Connects to many ports of the same IP (likely port scanning)
Creates a thread in another existing process (thread injection)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after checking computer name)
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 dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
PE file has a writeable .text section
Queries memory information (via WMI often done to detect virtual machines)
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines)
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, 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 process hollowing technique
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 browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected LummaC Stealer
Yara detected RedLine Stealer
Yara detected RisePro Stealer
Yara detected SmokeLoader
Yara detected Stealc
Yara detected Vidar stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1362889 Sample: xTT1YiH1B4.exe Startdate: 15/12/2023 Architecture: WINDOWS Score: 100 135 soupinterestoe.fun 2->135 137 reviveincapablewew.pw 2->137 139 15 other IPs or domains 2->139 185 Snort IDS alert for network traffic 2->185 187 Found malware configuration 2->187 189 Malicious sample detected (through community Yara rule) 2->189 191 19 other signatures 2->191 10 xTT1YiH1B4.exe 1 4 2->10         started        13 svchost.exe 2->13         started        15 svchost.exe 1 1 2->15         started        18 4 other processes 2->18 signatures3 process4 dnsIp5 109 C:\Users\user\AppData\Local\...\5GZ9xZ4.exe, PE32 10->109 dropped 111 C:\Users\user\AppData\Local\...\2bb5514.exe, PE32 10->111 dropped 20 5GZ9xZ4.exe 10->20         started        23 2bb5514.exe 15 3 10->23         started        26 WerFault.exe 13->26         started        28 WerFault.exe 13->28         started        161 127.0.0.1 unknown unknown 15->161 30 conhost.exe 18->30         started        32 conhost.exe 18->32         started        file6 process7 dnsIp8 193 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 20->193 195 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 20->195 197 Maps a DLL or memory area into another process 20->197 207 2 other signatures 20->207 34 explorer.exe 20->34 injected 153 77.91.124.172, 49709, 80 ECOTEL-ASRU Russian Federation 23->153 199 Found many strings related to Crypto-Wallets (likely being stolen) 23->199 201 Writes to foreign memory regions 23->201 203 Allocates memory in foreign processes 23->203 205 Injects a PE file into a foreign processes 23->205 39 RegAsm.exe 15 69 23->39         started        41 RegAsm.exe 23->41         started        43 RegSvcs.exe 26->43         started        45 RegSvcs.exe 26->45         started        signatures9 process10 dnsIp11 141 185.215.113.68, 49720, 80 WHOLESALECONNECTIONSNL Portugal 34->141 143 5.42.65.125, 49732, 80 RU-KSTVKolomnaGroupofcompaniesGuarantee-tvRU Russian Federation 34->143 151 2 other IPs or domains 34->151 93 C:\Users\user\AppData\Local\Temp\F833.exe, PE32 34->93 dropped 95 C:\Users\user\AppData\Local\Temp835.exe, PE32 34->95 dropped 97 C:\Users\user\AppData\Local\Temp41D.exe, PE32 34->97 dropped 105 4 other malicious files 34->105 dropped 209 System process connects to network (likely due to code injection or exploit) 34->209 211 Benign windows process drops PE files 34->211 47 1F73.exe 34->47         started        51 E41D.exe 34->51         started        53 F833.exe 34->53         started        61 7 other processes 34->61 145 91.92.249.253, 49710, 50500 THEZONEBG Bulgaria 39->145 147 ipinfo.io 34.117.186.192, 443, 49711 GOOGLE-AS-APGoogleAsiaPacificPteLtdSG United States 39->147 99 C:\Users\user\AppData\Local\...\sqlite3.dll, PE32 39->99 dropped 101 C:\...\mWpv2LUhBgSiIzeG014dteJJACDeSJND.zip, Zip 39->101 dropped 103 C:\Users\user\AppData\...\FANBooster131.exe, PE32 39->103 dropped 107 2 other files (none is malicious) 39->107 dropped 213 Found many strings related to Crypto-Wallets (likely being stolen) 39->213 215 Tries to harvest and steal browser information (history, passwords, etc) 39->215 55 cmd.exe 1 39->55         started        57 cmd.exe 1 39->57         started        59 WerFault.exe 39->59         started        217 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 41->217 219 Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines) 41->219 221 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 41->221 223 Queries memory information (via WMI often done to detect virtual machines) 41->223 149 195.20.16.103 EITADAT-ASFI Finland 43->149 225 Tries to steal Crypto Currency Wallets 43->225 227 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 45->227 file12 signatures13 process14 dnsIp15 113 C:\Users\user\AppData\Local\Temp\tuc3.exe, PE32 47->113 dropped 115 C:\Users\user\AppData\Local\...\toolspub2.exe, PE32 47->115 dropped 117 C:\Users\user\AppData\...\InstallSetup9.exe, PE32 47->117 dropped 119 C:\...\31839b57a4f11171d6abc8bbc4451ee4.exe, PE32 47->119 dropped 163 Antivirus detection for dropped file 47->163 165 Machine Learning detection for dropped file 47->165 64 InstallSetup9.exe 47->64         started        68 toolspub2.exe 47->68         started        71 InstallSetup9.exe 47->71         started        121 C:\Users\user\AppData\Roaming\...\File2.exe, PE32 51->121 dropped 123 C:\Users\user\AppData\Roaming\...\File1.exe, PE32 51->123 dropped 73 File1.exe 51->73         started        75 File2.exe 51->75         started        77 conhost.exe 51->77         started        125 C:\Users\user\AppData\...\Protect544cd51a.dll, PE32 53->125 dropped 167 Writes to foreign memory regions 53->167 169 Allocates memory in foreign processes 53->169 171 Sample uses process hollowing technique 53->171 173 Injects a PE file into a foreign processes 53->173 175 Uses schtasks.exe or at.exe to add and modify task schedules 55->175 79 2 other processes 55->79 81 2 other processes 57->81 155 ratefacilityframw.fun 104.21.74.182, 49727, 80 CLOUDFLARENETUS United States 61->155 157 dayfarrichjwclik.fun 104.21.80.57, 49723, 80 CLOUDFLARENETUS United States 61->157 159 5 other IPs or domains 61->159 177 Detected unpacking (changes PE section rights) 61->177 179 Detected unpacking (overwrites its own PE header) 61->179 181 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 61->181 183 4 other signatures 61->183 83 4 other processes 61->83 file16 signatures17 process18 dnsIp19 127 api4.ipify.org 64.185.227.156 WEBNXUS United States 64->127 129 91.92.254.7 THEZONEBG Bulgaria 64->129 133 2 other IPs or domains 64->133 85 C:\Users\user\AppData\Local\Temp\...\Math.dll, PE32 64->85 dropped 87 C:\Users\user\AppData\Local\...\INetC.dll, PE32 64->87 dropped 89 C:\Users\user\AppData\...\nsa69A9.tmp.exe, PE32 64->89 dropped 91 2 other malicious files 64->91 dropped 229 Sample uses process hollowing technique 68->229 231 Injects a PE file into a foreign processes 68->231 131 176.123.10.211, 47430, 49733 ALEXHOSTMD Moldova Republic of 73->131 233 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 73->233 235 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 73->235 file20 signatures21
Threat name:
Win32.Trojan.SmokeLoader
Status:
Malicious
First seen:
2023-12-15 18:16:06 UTC
File Type:
PE (Exe)
Extracted files:
40
AV detection:
14 of 37 (37.84%)
Threat level:
  5/5
Result
Malware family:
smokeloader
Score:
  10/10
Tags:
family:lumma family:redline family:smokeloader botnet:@oleh_ps backdoor collection discovery infostealer persistence spyware stealer trojan
Behaviour
Checks SCSI registry key(s)
Creates scheduled task(s)
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks installed software on the system
Looks up external IP address via web service
Drops startup file
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Detect Lumma Stealer payload V4
Lumma Stealer
RedLine
RedLine payload
SmokeLoader
Malware Config
C2 Extraction:
http://185.215.113.68/fks/index.php
176.123.7.190:32927
Unpacked files
SH256 hash:
0aa9f8be2a6cb4862d1fd423159080d2100f7adf8ced157d463460230049c31a
MD5 hash:
492ff386974529e80c08385cfef08765
SHA1 hash:
73ac0062ec57d058fd0f1ba161eb1f94cbc1120e
SH256 hash:
fabcdb9d5c1566afe323551a18b67c05e9f9ce3efc8692a581ff5dc76929ab62
MD5 hash:
d3b68186b4e2c5063aefaa74b22f9413
SHA1 hash:
06429cf4a23fd0eae9330a49612a875ef4e43aaa
Detections:
SmokeLoaderStage2 win_smokeloader_a2
SH256 hash:
71d37f4ff2c620d237f8d6e9864556b5888747468b51248c3940264a359bbe55
MD5 hash:
5f6a533eb423b08edd6860c7207c6bae
SHA1 hash:
d8151f0802da077778176047ab3a3cfed1563d41
Detections:
win_redline_wextract_hunting_oct_2023
Malware family:
SmokeLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Web download

Stealc

Executable exe 71d37f4ff2c620d237f8d6e9864556b5888747468b51248c3940264a359bbe55

(this sample)

  
Delivery method
Distributed via web download

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