MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5339d5fe41950b4888962e6617fd0f7a570e450620b461a123a3d11c9beb74b. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f5339d5fe41950b4888962e6617fd0f7a570e450620b461a123a3d11c9beb74b
SHA3-384 hash: 45be1f9d36f7f513381b0d742c38a3679a4622beb5c4e1489285773e3d0534325f7754db90ccf5f480c11c1f3d3ce3f7
SHA1 hash: 2aef04f707c384780e4648d2273c5eaa3b0b720f
MD5 hash: d978d56dcddec5fa6d3ae023abc1ee36
humanhash: butter-romeo-glucose-mobile
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:276'480 bytes
First seen:2024-03-19 17:09:25 UTC
Last seen:2024-03-19 18:37:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f78bbdf2183136107a24fb7ff4b7990f (1 x Stealc, 1 x Glupteba)
ssdeep 6144:/pPKEvWHMzGZxxFw0Kn0TOK3jkjZoB+033zHBOK:xPBvSMzyxxChQZ3Ajg33zhn
TLSH T13844BF51F6E29875D1625A3C9E65C7F00B3AF9717E34E25B3344E53F2AF02D08A52B22
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 3370e4d2ccf0335a (5 x Stealc, 3 x RiseProStealer, 2 x UACModuleSmokeLoader)
Reporter Bitsight
Tags:exe Stealc


Avatar
Bitsight
url: http://185.172.128.65/timeSync.exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
338
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f5339d5fe41950b4888962e6617fd0f7a570e450620b461a123a3d11c9beb74b.exe
Verdict:
Malicious activity
Analysis date:
2024-03-19 17:10:32 UTC
Tags:
stealer stealc
Link:
https://app.any.run/tasks/72f665d5-851f-45bf-ab9d-a76d6466c110

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PWS.Stealer.38546.7668.9932.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Searching for the window
Connection attempt to an infection source
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
fingerprint
Link:
https://www.filescan.io/uploads/65f9c6ed87137159d44a3d9f/reports/8b4bb66a-104a-49d1-8234-b060331703b7/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/f5339d5fe41950b4888962e6617fd0f7a570e450620b461a123a3d11c9beb74b
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/15f428ed-1a31-400b-87be-fa771068bc31
Result
Threat name:
Mars Stealer, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1411919
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Creates autostart registry keys with suspicious names
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)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Searches for specific processes (likely to inject)
Self deletion via cmd or bat file
Sigma detected: New RUN Key Pointing to Suspicious Folder
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 Mars stealer
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1411919 Sample: file.exe Startdate: 19/03/2024 Architecture: WINDOWS Score: 100 68 Snort IDS alert for network traffic 2->68 70 Found malware configuration 2->70 72 Malicious sample detected (through community Yara rule) 2->72 74 9 other signatures 2->74 9 file.exe 78 2->9         started        14 IIJEBFCFIJ.exe 2->14         started        16 IIJEBFCFIJ.exe 1 3 2->16         started        process3 dnsIp4 64 185.172.128.210, 49699, 80 NADYMSS-ASRU Russian Federation 9->64 66 185.172.128.65, 49709, 80 NADYMSS-ASRU Russian Federation 9->66 54 C:\Users\user\AppData\...\IIJEBFCFIJ.exe, PE32 9->54 dropped 56 C:\Users\user\AppData\...\softokn3[1].dll, PE32 9->56 dropped 58 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 9->58 dropped 60 11 other files (4 malicious) 9->60 dropped 80 Detected unpacking (changes PE section rights) 9->80 82 Detected unpacking (overwrites its own PE header) 9->82 84 Tries to steal Mail credentials (via file / registry access) 9->84 88 8 other signatures 9->88 18 cmd.exe 1 9->18         started        21 cmd.exe 1 9->21         started        23 WerFault.exe 22 16 9->23         started        86 Creates autostart registry keys with suspicious names 14->86 25 cmd.exe 14->25         started        27 cmd.exe 16->27         started        file5 signatures6 process7 signatures8 76 Uses ping.exe to sleep 18->76 78 Uses ping.exe to check the status of other devices and networks 18->78 29 IIJEBFCFIJ.exe 1 4 18->29         started        32 conhost.exe 18->32         started        34 conhost.exe 21->34         started        36 timeout.exe 1 21->36         started        38 conhost.exe 25->38         started        40 PING.EXE 25->40         started        42 conhost.exe 27->42         started        44 PING.EXE 27->44         started        process9 signatures10 90 Multi AV Scanner detection for dropped file 29->90 46 cmd.exe 1 29->46         started        process11 signatures12 92 Uses ping.exe to sleep 46->92 49 PING.EXE 1 46->49         started        52 conhost.exe 46->52         started        process13 dnsIp14 62 2.2.2.2 FranceTelecom-OrangeFR France 49->62
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f5339d5fe41950b4888962e6617fd0f7a570e450620b461a123a3d11c9beb74b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f5339d5fe41950b4888962e6617fd0f7a570e450620b461a123a3d11c9beb74b/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-03-19 17:10:06 UTC
File Type:
PE (Exe)
Extracted files:
62
AV detection:
18 of 24 (75.00%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6uzz2x7edfiljcejmltgc76q66sxbzcqmifumgqshi6rdsn6w5fq._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc discovery persistence spyware stealer
Link:
https://tria.ge/reports/240319-vppczahc64/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Checks computer location settings
Deletes itself
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Stealc
Malware Config
C2 Extraction:
http://185.172.128.210
Unpacked files
SH256 hash:
34e868f09b59be9f7a4e387eea66d8813939b9cb19948d7ec7736c37fbd07d83
MD5 hash:
68eff65dadefc2a09b83a2b2a21d075d
SHA1 hash:
4165aab529b392b7fce6c0293f01aa0ee2a70e3f
Detections:
stealc
Create hunting rule
win_stealc_auto
Create hunting rule
Link:
https://www.unpac.me/results/32b48ebd-d2b3-4157-aac5-09bfff221385/
Parent samples :
f65d09fbd39dd8abe1a223fc743a0a25172ab32887013215a623ea433fd1b19f
bb94b5a0a317403d2bf8f8e21913a1a7910641e03a5157a0edcccec1a9d86240
f60d870ba4a24b757b7d6200d7cbfdd6ee7da44fd8d674915895ec24065cb9a4
9648391b4b4a1db893e6939901524170ee2a6a0f1744dcc6e770da2be55f191a
fc7a0e0dcefcdff77a414a9c76b04c6c6a90e4bc1e54b27099fecd587048c414
6a9dd15e8c6b7a7399660de536643430c0fdfee0faadfe97ce721a8bb2d893f0
77940969714dc102b3cc802299080a75e1122cfa1323b49d94e7e3bffa6ec8b7
d56b93388319e4139dcd139b4276fb390aabd749d24535b6a3181fb628777988
80c85a5d74bde95185f62fbad636c845cb5c473215d11a85c26c66ccb5119a07
3c5cdfdb1871c9aa01be0c89519c25b4846e92a07143594f1986e7911e34cbfe
f5339d5fe41950b4888962e6617fd0f7a570e450620b461a123a3d11c9beb74b
9517500f74a357875b19656ef699378127b52afe33b8f69f0e4afa9f5e548f15
8cbafb0ebfb5e7d1cdd0970e10083d987106413aa1dc36df7e9f906d213c7bc1
bb7a5004bfbe9dfecec6f06e3b785a5dc41f132a0554c7d3601582690702ae10
090e0889106e26b0bacbf1aeb7ed62ead800a9ba969a8c8cf9302ef94e601533
SH256 hash:
f5339d5fe41950b4888962e6617fd0f7a570e450620b461a123a3d11c9beb74b
MD5 hash:
d978d56dcddec5fa6d3ae023abc1ee36
SHA1 hash:
2aef04f707c384780e4648d2273c5eaa3b0b720f
Link:
https://www.unpac.me/results/32b48ebd-d2b3-4157-aac5-09bfff221385/
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/f5339d5fe41950b4888962e6617fd0f7a570e450620b461a123a3d11c9beb74b

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:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:detect_Mars_Stealer
Create hunting rule
Author:@malgamy12
Description:detect_Mars_Stealer
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:malware_Stealc_str
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:Stealc infostealer
Rule name:Windows_Trojan_Smokeloader_3687686f
Create hunting rule
Author:Elastic Security
Rule name:win_stealc_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stealc.

File information

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

Web download

Stealc

Executable exe f5339d5fe41950b4888962e6617fd0f7a570e450620b461a123a3d11c9beb74b

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2777316/
  
URLhaus
https://urlhaus.abuse.ch/url/2754939/
  
URLhaus
https://urlhaus.abuse.ch/url/2787085/

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
AUTH_APIManipulates User AuthorizationADVAPI32.dll::IsValidSid
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::OpenThreadToken
KERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindNextVolumeMountPointW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleOutputCharacterA
KERNEL32.dll::SetConsoleTitleA
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleOutputCP
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileW
KERNEL32.dll::GetFileAttributesA
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpCreateUrl

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