MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2a9f856bc9fe5a41540aa3800cd8e50adfbfbc3661845a9791c02c13bcadddf6. 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 7 File information Comments
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SHA256 hash: 2a9f856bc9fe5a41540aa3800cd8e50adfbfbc3661845a9791c02c13bcadddf6
SHA3-384 hash: e931d48194fb1c6c6b790d076f54f239b4acb77b80c307a3c5ef4f2541e98ef41c65cf31d848b771968e64a1db300045
SHA1 hash: 3fb0f2b266d91f465e9abb930d85867a65e8eec9
MD5 hash: ccc8fb5c5637dd0a4d32552bd9203ce6
humanhash: lemon-fish-seven-glucose
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:334'376 bytes
First seen:2024-09-26 22:13:04 UTC
Last seen:2024-09-27 12:18:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:QokaBTSIjqhL6fEq3Ko6UasNc8FI+sIFaPsq9Lti8EO:QojBTScq/qqsNlFI+sIFyLEO
Threatray 120 similar samples on MalwareBazaar
TLSH T1E864232C7EE57775FEAA9E7A14734602DBF1A340BB913A4230D24355CE0AB721E061F9
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter Bitsight
Tags:exe Stealc


Avatar
Bitsight
url: http://147.45.44.104/prog/66f5dba87d7c8_sdfsdafd.exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
428
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-09-26 22:15:11 UTC
Tags:
stealer stealc loader
Link:
https://app.any.run/tasks/ce3182c0-b158-4ccf-bf73-d4001ae4b131

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Msilzilla-10036350-0
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66f5dcac79032805ce8e3ebe
Tags:
Encryption Static Micro Tori Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Forced shutdown of a system process
Connection attempt to an infection source
Unauthorized injection to a system process
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/66f5dcabf71b9c224c1356df/reports/45b449a8-b152-47ca-81dd-7f364ece8c2f/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/2a9f856bc9fe5a41540aa3800cd8e50adfbfbc3661845a9791c02c13bcadddf6
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/c3a66af3-b2c2-44d9-baf6-9c02954fa471
Result
Threat name:
LummaC, RDPWrap Tool, LummaC Stealer, St
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1519761
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Adds a new user with administrator rights
AI detected suspicious sample
Allocates memory in foreign processes
Allows multiple concurrent remote connection
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Enables remote desktop connection
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
LummaC encrypted strings found
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Sample uses string decryption to hide its real strings
Searches for specific processes (likely to inject)
Sigma detected: Outbound RDP Connections Over Non-Standard Tools
Sigma detected: RDP Sensitive Settings Changed
Sigma detected: Suspicious Add User to Remote Desktop Users Group
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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 harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Tries to steal Mail credentials (via file / registry access)
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected LummaC Stealer
Yara detected Powershell download and execute
Yara detected RDPWrap Tool
Yara detected Stealc
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1519761 Sample: file.exe Startdate: 27/09/2024 Architecture: WINDOWS Score: 100 137 wallkedsleeoi.shop 2->137 139 vozmeatillu.shop 2->139 141 13 other IPs or domains 2->141 163 Suricata IDS alerts for network traffic 2->163 165 Found malware configuration 2->165 167 Malicious sample detected (through community Yara rule) 2->167 169 24 other signatures 2->169 12 file.exe 2 2->12         started        16 rdpvideominiport.sys 2->16         started        18 rdpdr.sys 2->18         started        20 tsusbhub.sys 2->20         started        signatures3 process4 file5 133 C:\Users\user\AppData\Local\...\file.exe.log, CSV 12->133 dropped 225 Contains functionality to inject code into remote processes 12->225 227 Writes to foreign memory regions 12->227 229 Allocates memory in foreign processes 12->229 231 Injects a PE file into a foreign processes 12->231 22 RegAsm.exe 41 12->22         started        27 RegAsm.exe 12->27         started        29 conhost.exe 12->29         started        signatures6 process7 dnsIp8 153 147.45.44.104, 49709, 49711, 49755 FREE-NET-ASFREEnetEU Russian Federation 22->153 155 46.8.231.109, 49708, 80 FIORD-ASIP-transitoperatorinRussiaUkraineandBaltics Russian Federation 22->155 125 C:\Users\user\AppData\...\softokn3[1].dll, PE32 22->125 dropped 127 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 22->127 dropped 129 C:\Users\user\AppData\...\mozglue[1].dll, PE32 22->129 dropped 131 15 other files (11 malicious) 22->131 dropped 195 Tries to steal Mail credentials (via file / registry access) 22->195 197 Found many strings related to Crypto-Wallets (likely being stolen) 22->197 199 Tries to harvest and steal browser information (history, passwords, etc) 22->199 205 2 other signatures 22->205 31 cmd.exe 1 22->31         started        34 cmd.exe 22->34         started        36 cmd.exe 1 22->36         started        201 Found evasive API chain (may stop execution after checking locale) 27->201 203 Searches for specific processes (likely to inject) 27->203 file9 signatures10 process11 signatures12 235 Adds a new user with administrator rights 31->235 38 userAFHDHCAAKE.exe 2 31->38         started        41 conhost.exe 31->41         started        43 userBGIJEGCGDG.exe 34->43         started        47 conhost.exe 34->47         started        49 userGCAEHDBAAE.exe 36->49         started        51 conhost.exe 36->51         started        process13 dnsIp14 171 Multi AV Scanner detection for dropped file 38->171 173 Writes to foreign memory regions 38->173 175 Allocates memory in foreign processes 38->175 53 RegAsm.exe 1 169 38->53         started        58 conhost.exe 38->58         started        60 RegAsm.exe 38->60         started        157 8.46.123.33, 3389, 49729 AS-PUBMATICUS United States 43->157 159 api.ipify.org 104.26.13.205, 49728, 80 CLOUDFLARENETUS United States 43->159 161 239.255.255.250 unknown Reserved 43->161 135 C:\Users\user\AppData\Local\...\RDPWInst.exe, PE32 43->135 dropped 177 Antivirus detection for dropped file 43->177 179 Machine Learning detection for dropped file 43->179 62 cmd.exe 43->62         started        64 cmd.exe 43->64         started        66 cmd.exe 43->66         started        72 4 other processes 43->72 181 Injects a PE file into a foreign processes 49->181 183 LummaC encrypted strings found 49->183 68 RegAsm.exe 49->68         started        70 conhost.exe 49->70         started        file15 signatures16 process17 dnsIp18 143 cowod.hopto.org 45.132.206.251 LIFELINK-ASRU Russian Federation 53->143 145 5.75.211.162, 443, 49732, 49733 HETZNER-ASDE Germany 53->145 117 C:\Users\...\66f5dbaca34ac_lfdnsafnds[1].exe, PE32 53->117 dropped 119 C:\Users\...\66f5db9e54794_vfkagks[1].exe, PE32 53->119 dropped 121 C:\Users\user\...\66f5d9ab0d4c7_rdp[1].exe, PE32 53->121 dropped 123 3 other malicious files 53->123 dropped 185 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 53->185 187 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 53->187 189 Tries to harvest and steal ftp login credentials 53->189 193 3 other signatures 53->193 74 BKJJEBKKEH.exe 53->74         started        77 BKFHCGIDBA.exe 53->77         started        79 GIEBGIIJDG.exe 53->79         started        81 cmd.exe 53->81         started        83 RDPWInst.exe 62->83         started        86 conhost.exe 62->86         started        191 Adds a new user with administrator rights 64->191 88 2 other processes 64->88 90 4 other processes 66->90 147 gutterydhowi.shop 104.21.4.136, 443, 49712, 49758 CLOUDFLARENETUS United States 68->147 149 drawzhotdog.shop 104.21.58.182, 443, 49721 CLOUDFLARENETUS United States 68->149 151 6 other IPs or domains 68->151 92 8 other processes 72->92 file19 signatures20 process21 file22 207 Writes to foreign memory regions 74->207 209 Allocates memory in foreign processes 74->209 211 Injects a PE file into a foreign processes 74->211 94 RegAsm.exe 74->94         started        97 conhost.exe 74->97         started        105 2 other processes 77->105 213 Antivirus detection for dropped file 79->213 215 Machine Learning detection for dropped file 79->215 99 cmd.exe 79->99         started        107 2 other processes 81->107 113 C:\Program Files\RDP Wrapper\rdpwrap.dll, PE32+ 83->113 dropped 115 C:\Windows\System32\rfxvmt.dll, PE32+ 83->115 dropped 217 Multi AV Scanner detection for dropped file 83->217 219 Uses netsh to modify the Windows network and firewall settings 83->219 221 Allows multiple concurrent remote connection 83->221 223 2 other signatures 83->223 101 netsh.exe 83->101         started        103 net1.exe 88->103         started        109 2 other processes 90->109 111 3 other processes 92->111 signatures23 process24 signatures25 233 Tries to harvest and steal browser information (history, passwords, etc) 94->233
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/2a9f856bc9fe5a41540aa3800cd8e50adfbfbc3661845a9791c02c13bcadddf6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2a9f856bc9fe5a41540aa3800cd8e50adfbfbc3661845a9791c02c13bcadddf6/
Threat name:
Win32.Spyware.Stealc
Create hunting rule
Status:
Malicious
First seen:
2024-09-26 22:14:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 24 (91.67%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fkpyk26j7znecvakuoaazwhfblp37pbwmgcfvf4ryawbhpfn3x3a._file
Verdict:
malicious
Label(s):
rdpwrap
Create hunting rule
stealc
Create hunting rule
Similar samples:
3a82cb00938ffbdf09c91c39120f57054df7573950701ce8be86aec0342bc1b5
Stealc
8df76c9722b5a44e7e5c42de48f4073ef42eaa814903207abdb9aa72f0ed4616
Stealc
941e7002f11290e3ed9dd99d8cc0abc62f6cf69b923ae30b89741579854a8a70
Stealc
e0f1b468770374dc01046cd48f25609b5e04724a79323a049f02673ea0bcc811
Stealc
f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d
Stealc
+ 110 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:lumma family:stealc family:vidar botnet:default botnet:e90840a846d017e7b095f7543cdf2d15 credential_access discovery evasion persistence privilege_escalation spyware stealer
Link:
https://tria.ge/reports/240926-15mf7szhkn/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Runs net.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
Program crash
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Looks up external IP address via web service
Modifies WinLogon
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Unsecured Credentials: Credentials In Files
Downloads MZ/PE file
Modifies Windows Firewall
Server Software Component: Terminal Services DLL
Detect Vidar Stealer
Lumma Stealer, LummaC
Stealc
Vidar
Malware Config
C2 Extraction:
http://46.8.231.109
https://steamcommunity.com/profiles/76561199780418869
https://t.me/ae5ed
https://reinforcenh.shop/api
https://stogeneratmns.shop/api
https://fragnantbui.shop/api
https://drawzhotdog.shop/api
https://vozmeatillu.shop/api
https://offensivedzvju.shop/api
https://ghostreedmnu.shop/api
https://gutterydhowi.shop/api
https://wallkedsleeoi.shop/api
https://ballotnwu.site/api
Verdict:
Malicious
Tags:
stealc
YARA:
n/a
Link:
https://app.threat.zone/submission/b9941056-18b1-44fd-b5c2-fd9d9ef8e666
Unpacked files
SH256 hash:
951b300428f46c2a12417414eb10796307cbe9016bbd22193e3250f77bb8190c
MD5 hash:
733e54187892b23b2b7653e79925a2f0
SHA1 hash:
bcd5bfca9eb9fc9bdced6a3a43a96baf598fcd80
Detections:
stealc
Create hunting rule
Link:
https://www.unpac.me/results/61f9b572-7f7c-4191-b7b6-93b80e28e69c/
Parent samples :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 hash:
3986363fb8deb6927a153051c4d412001481d4cb60a113261c0e0402238bfef9
MD5 hash:
f5aa858b2cbbb784ca62b8891c9f557e
SHA1 hash:
f45f07667a035a43b06a5f43755e249a67a01f67
Link:
https://www.unpac.me/results/61f9b572-7f7c-4191-b7b6-93b80e28e69c/
SH256 hash:
2a9f856bc9fe5a41540aa3800cd8e50adfbfbc3661845a9791c02c13bcadddf6
MD5 hash:
ccc8fb5c5637dd0a4d32552bd9203ce6
SHA1 hash:
3fb0f2b266d91f465e9abb930d85867a65e8eec9
Link:
https://www.unpac.me/results/61f9b572-7f7c-4191-b7b6-93b80e28e69c/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2a9f856bc9fe/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/2a9f856bc9fe5a41540aa3800cd8e50adfbfbc3661845a9791c02c13bcadddf6

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Stealc

Executable exe 2a9f856bc9fe5a41540aa3800cd8e50adfbfbc3661845a9791c02c13bcadddf6

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3193107/
  
URLhaus
https://urlhaus.abuse.ch/url/3194082/

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 (GUARD_CF)high

Comments