MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 557bdecd3fee8cc304a04275a3709608acca66d4766b9dd074165c97afb7c63e. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 557bdecd3fee8cc304a04275a3709608acca66d4766b9dd074165c97afb7c63e
SHA3-384 hash: 34a253d83012a62cae5a41d0c6d709af931acbeff08f1c9890aa5a67971f9b81d1e50e5b0c4628b3aadd3d1b40425fc6
SHA1 hash: 8fe9b8f814e94fa7611c59a6de23a1622a8f1e18
MD5 hash: f80070d71f143630c812d64dfdadd068
humanhash: oklahoma-thirteen-mars-floor
File name:f80070d71f143630c812d64dfdadd068.exe
Download: download sample
Signature Stealc
Create hunting rule
File size:356'353 bytes
First seen:2024-04-29 13:56:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 01898177ba9cb8dd836c1011eeda6231 (9 x Stealc, 2 x Arechclient2, 1 x MarsStealer)
ssdeep 6144:rduS03pdQbVg12jXuaGWkJ0Oey7lZr1asn3e5mV/9+D9f/a4ENTUh8d5a1v:ZoXQHy3WkH8sn3e5maa4MYv
Threatray 366 similar samples on MalwareBazaar
TLSH T10A74F11237E0FC35E1969D71543AC2A1967F78724BB0919FB3C017AE6E712E0B636362
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 64f29a9889a99989 (2 x Stealc, 1 x Arechclient2)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://185.172.128.150/c698e1bc8a2f5e6d.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
351
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
557bdecd3fee8cc304a04275a3709608acca66d4766b9dd074165c97afb7c63e.exe
Verdict:
Malicious activity
Analysis date:
2024-04-29 14:06:40 UTC
Tags:
gcleaner loader stealer stealc arechclient2 backdoor
Link:
https://app.any.run/tasks/64c45135-9dad-49df-9439-ec320e2d6b0e

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
Launching the default Windows debugger (dwwin.exe)
Connection attempt to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint overlay packed
Link:
https://www.filescan.io/uploads/662fa73354bafb7d21e604d9/reports/1c902031-9f47-4024-8c97-caa5c27afc8d/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/557bdecd3fee8cc304a04275a3709608acca66d4766b9dd074165c97afb7c63e
Result
Verdict:
MALICIOUS
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6595174c-ecf3-47a8-9445-2d5697ddac45
Result
Threat name:
PureLog Stealer, RedLine, SectopRAT, zgR
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1433413
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
Checks if the current machine is a virtual machine (disk enumeration)
Connects to many ports of the same IP (likely port scanning)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found direct / indirect Syscall (likely to bypass EDR)
Found hidden mapped module (file has been removed from disk)
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
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)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Uses known network protocols on non-standard ports
Writes to foreign memory regions
Yara detected Generic Downloader
Yara detected PureLog Stealer
Yara detected RedLine Stealer
Yara detected SectopRAT
Yara detected UAC Bypass using CMSTP
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1433413 Sample: t8rEZVhm8F.exe Startdate: 29/04/2024 Architecture: WINDOWS Score: 100 61 download.iolo.net 2->61 63 westus2-2.in.applicationinsights.azure.com 2->63 65 6 other IPs or domains 2->65 89 Snort IDS alert for network traffic 2->89 91 Multi AV Scanner detection for domain / URL 2->91 93 Malicious sample detected (through community Yara rule) 2->93 95 14 other signatures 2->95 9 t8rEZVhm8F.exe 3 11 2->9         started        14 run.exe 2 2->14         started        signatures3 process4 dnsIp5 71 185.172.128.90, 49706, 80 NADYMSS-ASRU Russian Federation 9->71 73 185.172.128.228, 49707, 49711, 80 NADYMSS-ASRU Russian Federation 9->73 75 2 other IPs or domains 9->75 51 C:\Users\user\AppData\Local\Temp\u1ps.3.exe, PE32 9->51 dropped 53 C:\Users\user\AppData\Local\Temp\...\run.exe, PE32 9->53 dropped 55 C:\Users\user\AppData\Local\...\relay.dll, PE32 9->55 dropped 57 2 other malicious files 9->57 dropped 103 Detected unpacking (changes PE section rights) 9->103 105 Detected unpacking (overwrites its own PE header) 9->105 16 run.exe 6 9->16         started        20 u1ps.3.exe 12 8 9->20         started        23 u1ps.0.exe 9->23         started        25 WerFault.exe 19 16 9->25         started        107 Maps a DLL or memory area into another process 14->107 109 Found direct / indirect Syscall (likely to bypass EDR) 14->109 27 cmd.exe 14->27         started        file6 signatures7 process8 dnsIp9 45 C:\Users\user\AppData\Roaming\...\relay.dll, PE32 16->45 dropped 47 C:\Users\user\AppData\...\UIxMarketPlugin.dll, PE32 16->47 dropped 77 Maps a DLL or memory area into another process 16->77 79 Found direct / indirect Syscall (likely to bypass EDR) 16->79 29 cmd.exe 4 16->29         started        67 svc.iolo.com 20.157.87.45 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 20->67 81 Checks if the current machine is a virtual machine (disk enumeration) 20->81 33 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 20->33         started        83 Multi AV Scanner detection for dropped file 23->83 85 Machine Learning detection for dropped file 23->85 49 C:\Users\user\AppData\Local\...\btqmxxnsdxp, PE32 27->49 dropped 87 Writes to foreign memory regions 27->87 35 conhost.exe 27->35         started        37 MSBuild.exe 27->37         started        file10 signatures11 process12 file13 59 C:\Users\user\AppData\Local\Temp\fbpw, PE32 29->59 dropped 111 Writes to foreign memory regions 29->111 113 Found hidden mapped module (file has been removed from disk) 29->113 115 Maps a DLL or memory area into another process 29->115 39 MSBuild.exe 15 8 29->39         started        43 conhost.exe 29->43         started        117 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 33->117 119 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 33->119 signatures14 process15 dnsIp16 69 91.215.85.66 PINDC-ASRU Russian Federation 39->69 97 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 39->97 99 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 39->99 101 Tries to harvest and steal browser information (history, passwords, etc) 39->101 signatures17
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/557bdecd3fee8cc304a04275a3709608acca66d4766b9dd074165c97afb7c63e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/557bdecd3fee8cc304a04275a3709608acca66d4766b9dd074165c97afb7c63e/
Threat name:
Win32.Trojan.Operaloader
Create hunting rule
Status:
Malicious
First seen:
2024-04-29 13:57:05 UTC
File Type:
PE (Exe)
Extracted files:
16
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kv555tj752gmgbfaij22g4ewbcwmuzwuozvz3uduczojpl5xyy7a._file
Verdict:
malicious
Similar samples:
25c905988e0c45b9f9fcbed9dc7dd15d251cfbb1cdc20b7b3342f9f141a36289
Stealc
46c349e1b774320b7c458b390f61a6e73bcabca4b90c5c6c47229face01360b1
Stealc
64cbe0c31f9cff7215653a5cb20276e3e7bea8f9d02e7a45b1202dd41e33ec66
Stealc
8dbee88d180d1b2bc75dfaa00dfd185eef0f00e9f91cb6f0a87451858ad45472
Stealc
eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f
Stealc
+ 356 additional samples on MalwareBazaar
Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:sectoprat family:stealc family:zgrat discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/240429-q8qmxscf2v/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
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
SectopRAT
SectopRAT payload
Stealc
ZGRat
Malware Config
C2 Extraction:
http://185.172.128.150
Unpacked files
SH256 hash:
cfc2458a54578854cae748277b7527e4a2ff4a49aa4a55b885109fc334f73865
MD5 hash:
f24e8a42d193b41ec73c76a36c30ee0d
SHA1 hash:
4ceab3b79d49350c6d9575470cd273ec1d8b26cd
Link:
https://www.unpac.me/results/0cfd2f68-477b-4201-a262-fbac0e9bcd5b/
SH256 hash:
557bdecd3fee8cc304a04275a3709608acca66d4766b9dd074165c97afb7c63e
MD5 hash:
f80070d71f143630c812d64dfdadd068
SHA1 hash:
8fe9b8f814e94fa7611c59a6de23a1622a8f1e18
Link:
https://www.unpac.me/results/0cfd2f68-477b-4201-a262-fbac0e9bcd5b/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/557bdecd3fee/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/557bdecd3fee8cc304a04275a3709608acca66d4766b9dd074165c97afb7c63e

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:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

Web download

Stealc

Executable exe 557bdecd3fee8cc304a04275a3709608acca66d4766b9dd074165c97afb7c63e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2804603/
  
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::LoadLibraryA
KERNEL32.dll::GetVolumeInformationA
KERNEL32.dll::GetStartupInfoA
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetConsoleCtrlHandler
KERNEL32.dll::SetConsoleDisplayMode
KERNEL32.dll::SetConsoleTitleW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA

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