MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 77e9b3740b0e2fd375cd1981ce2ad2ece335200794fa7eb92d4befee2094b9ce. 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: 16


Intelligence 16 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 77e9b3740b0e2fd375cd1981ce2ad2ece335200794fa7eb92d4befee2094b9ce
SHA3-384 hash: 18458859076069e040a0c9c6f73004350498e4f66bba4617d39419db3d44fff4912df6e30ad7d272e7dbd7c0d665645c
SHA1 hash: 567f213eabaf61bf82e941631dbecd518b61d089
MD5 hash: 3cf711041254d965f4d100dfd2af83b5
humanhash: nuts-wyoming-hamper-one
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:2'500'096 bytes
First seen:2024-07-09 10:54:42 UTC
Last seen:2024-07-09 13:54:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 49152:QFBfSopK6xreRIkEGiQmckvN+tAi34M6znoX98vzzxDiDUGLz+y7LF1OjPur8:4fPI6rCRpbi+tAi7svzzxJ8LF1UG8
TLSH T1DCC53331B41B12A6E8A72FFC644DC027BC1CE7BDF94658290ECE68468F5D6A0DC613D9
TrID 27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
20.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
18.6% (.EXE) Win32 Executable (generic) (4504/4/1)
8.5% (.ICL) Windows Icons Library (generic) (2059/9)
8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter Bitsight
Tags:exe Stealc


Avatar
Bitsight
url: http://77.91.77.81/stealc/random.exe

Intelligence

File Origin
# of uploads :
5
# of downloads :
394
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
77e9b3740b0e2fd375cd1981ce2ad2ece335200794fa7eb92d4befee2094b9ce.exe
Verdict:
Malicious activity
Analysis date:
2024-07-09 11:06:39 UTC
Tags:
stealer stealc
Link:
https://app.any.run/tasks/8e8bf997-e849-4253-8399-591bacb8d2a4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
PUA.Win.Packer.EnigmaProtector-9852682-0
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=668d17092207f037a366d6d6win7simulatehigh_evasion
Tags:
Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
enigma lolbin microsoft_visual_cc packed packed shell32
Link:
https://www.filescan.io/uploads/668d1715701ce12a8e3b961c/reports/9ec1ba5c-e7b4-42a4-a2ac-b552cdbd7264/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/77e9b3740b0e2fd375cd1981ce2ad2ece335200794fa7eb92d4befee2094b9ce
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:
Spark
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f1054542-ec90-4c54-abc7-df2acd7a3429
Result
Threat name:
Amadey, Mars Stealer, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1470034
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Detected unpacking (changes PE section rights)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
Potentially malicious time measurement code found
Sample uses string decryption to hide its real strings
Snort IDS alert for network traffic
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Tries to evade debugger and weak emulator (self modifying code)
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)
Yara detected Amadeys stealer DLL
Yara detected Mars stealer
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1470034 Sample: file.exe Startdate: 09/07/2024 Architecture: WINDOWS Score: 100 96 youtube-ui.l.google.com 2->96 98 www.youtube.com 2->98 100 34 other IPs or domains 2->100 130 Snort IDS alert for network traffic 2->130 132 Found malware configuration 2->132 134 Antivirus detection for URL or domain 2->134 136 14 other signatures 2->136 12 file.exe 37 2->12         started        17 explorti.exe 2->17         started        19 explorti.exe 2->19         started        21 3 other processes 2->21 signatures3 process4 dnsIp5 122 85.28.47.30, 49710, 49728, 80 GES-ASRU Russian Federation 12->122 124 77.91.77.81, 49712, 49726, 49729 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 12->124 84 C:\Users\user\AppData\...\KKFHJJDHJE.exe, PE32 12->84 dropped 86 C:\Users\user\AppData\...\softokn3[1].dll, PE32 12->86 dropped 88 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 12->88 dropped 94 11 other files (3 malicious) 12->94 dropped 160 Detected unpacking (changes PE section rights) 12->160 162 Tries to steal Mail credentials (via file / registry access) 12->162 164 Found many strings related to Crypto-Wallets (likely being stolen) 12->164 174 4 other signatures 12->174 23 cmd.exe 1 12->23         started        25 cmd.exe 2 12->25         started        166 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 17->166 168 Hides threads from debuggers 17->168 170 Tries to detect sandboxes / dynamic malware analysis system (registry check) 17->170 172 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 19->172 90 topTraffic_1705401...0506234197983529371, data 21->90 dropped 92 C:\Users\user\AppData\Local\...\topTraffic, ASCII 21->92 dropped 27 firefox.exe 21->27         started        30 msedge.exe 21->30         started        32 msedge.exe 21->32         started        34 5 other processes 21->34 file6 signatures7 process8 dnsIp9 36 KKFHJJDHJE.exe 4 23->36         started        40 conhost.exe 23->40         started        42 conhost.exe 25->42         started        110 services.addons.mozilla.org 18.66.102.71 MIT-GATEWAYSUS United States 27->110 112 142.250.185.238, 443, 49793, 49795 GOOGLEUS United States 27->112 118 9 other IPs or domains 27->118 44 firefox.exe 27->44         started        46 firefox.exe 27->46         started        48 firefox.exe 27->48         started        114 13.107.246.40, 443, 49800, 49808 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 30->114 116 20.75.60.91, 443, 49788 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 30->116 120 18 other IPs or domains 30->120 process10 file11 82 C:\Users\user\AppData\Local\...\explorti.exe, PE32 36->82 dropped 146 Detected unpacking (changes PE section rights) 36->146 148 Tries to evade debugger and weak emulator (self modifying code) 36->148 150 Tries to detect virtualization through RDTSC time measurements 36->150 152 4 other signatures 36->152 50 explorti.exe 19 36->50         started        signatures12 process13 dnsIp14 102 77.91.77.82, 49725, 49727, 49730 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 50->102 78 C:\Users\user\AppData\...\e7687d55de.exe, PE32 50->78 dropped 80 C:\Users\user\AppData\Local\...\random[1].exe, PE32 50->80 dropped 138 Detected unpacking (changes PE section rights) 50->138 140 Tries to detect sandboxes and other dynamic analysis tools (window names) 50->140 142 Tries to evade debugger and weak emulator (self modifying code) 50->142 144 3 other signatures 50->144 55 e7687d55de.exe 12 50->55         started        58 cmd.exe 1 50->58         started        file15 signatures16 process17 signatures18 154 Multi AV Scanner detection for dropped file 55->154 156 Detected unpacking (changes PE section rights) 55->156 158 Hides threads from debuggers 55->158 60 chrome.exe 8 58->60         started        63 msedge.exe 58->63         started        65 conhost.exe 58->65         started        67 firefox.exe 58->67         started        process19 dnsIp20 126 192.168.2.12, 443, 49708, 49710 unknown unknown 60->126 128 239.255.255.250 unknown Reserved 60->128 69 chrome.exe 60->69         started        72 chrome.exe 60->72         started        74 chrome.exe 60->74         started        76 msedge.exe 63->76         started        process21 dnsIp22 104 www3.l.google.com 142.250.186.46, 443, 49819 GOOGLEUS United States 69->104 106 www.google.com 172.217.18.100, 443, 49849 GOOGLEUS United States 69->106 108 6 other IPs or domains 69->108
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/77e9b3740b0e2fd375cd1981ce2ad2ece335200794fa7eb92d4befee2094b9ce
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/77e9b3740b0e2fd375cd1981ce2ad2ece335200794fa7eb92d4befee2094b9ce/
Threat name:
Win32.Trojan.Stealerc
Create hunting rule
Status:
Malicious
First seen:
2024-07-09 10:55:07 UTC
File Type:
PE (Exe)
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o7u3g5albyx5g5ondga44kws5trtkiahst5h5ojnjpx64ieuxhha._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:stealc botnet:4dd39d botnet:hate discovery evasion spyware stealer trojan
Link:
https://tria.ge/reports/240709-mz4xeasdrf/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks BIOS information in registry
Checks computer location settings
Executes dropped EXE
Identifies Wine through registry keys
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Amadey
Stealc
Malware Config
C2 Extraction:
http://85.28.47.30
http://77.91.77.82
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e46e04de-e2aa-46ae-b607-d7778380b9e7
Unpacked files
SH256 hash:
77e9b3740b0e2fd375cd1981ce2ad2ece335200794fa7eb92d4befee2094b9ce
MD5 hash:
3cf711041254d965f4d100dfd2af83b5
SHA1 hash:
567f213eabaf61bf82e941631dbecd518b61d089
Link:
https://www.unpac.me/results/7206a776-47c4-4c54-81b7-2b5132aa90d2/
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/77e9b3740b0e2fd375cd1981ce2ad2ece335200794fa7eb92d4befee2094b9ce

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:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)

File information

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

Web download

Stealc

Executable exe 77e9b3740b0e2fd375cd1981ce2ad2ece335200794fa7eb92d4befee2094b9ce

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2909131/
  
URLhaus
https://urlhaus.abuse.ch/url/2909129/
  
URLhaus
https://urlhaus.abuse.ch/url/2908698/
  
URLhaus
https://urlhaus.abuse.ch/url/2945045/

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_NXMissing Non-Executable Memory Protectioncritical
Reviews
IDCapabilitiesEvidence
SHELL_APIManipulates System Shellshell32.dll::ShellExecuteA
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryA
WIN_BASE_IO_APICan Create Filesversion.dll::GetFileVersionInfoA

Comments