MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 42f37561be993b562340eee4598a6fd7ff612bba49b103703836d6ed866e02df. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 42f37561be993b562340eee4598a6fd7ff612bba49b103703836d6ed866e02df
SHA3-384 hash: d30c0a39c64f56882219aaf40253e42431af28eacffd11518e7ae4a7e836f15f10579263b365d3b827e70eecff26a1de
SHA1 hash: fc91daff62566d67a2336130607187160f1b19c1
MD5 hash: 157d8abb98909d890ff4045f7e67968c
humanhash: violet-alanine-mars-ack
File name:157D8ABB98909D890FF4045F7E67968C.exe
Download: download sample
Signature Stealc
Create hunting rule
File size:478'209 bytes
First seen:2024-03-20 16:55:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 57736d727b019d98ef28404f91500352 (2 x Stop, 1 x Stealc)
ssdeep 6144:Lq7QwMI6bLhAzjgDML0gOtWOrfBpcMdtj95rvErudXgMjM16eaxQXeHH1s:LqlMZP+ngDO0BtWccW953dXgC+PoHVs
TLSH T1FFA4BE4376F1EC66E46703311E2D96DC372FBC659E648B5736943E0E28301A0EEAB719
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 0000118192004c00 (1 x Stealc)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://185.172.128.209/3cd2b41cbde8fc9c.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
386
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
42f37561be993b562340eee4598a6fd7ff612bba49b103703836d6ed866e02df.exe
Verdict:
Malicious activity
Analysis date:
2024-03-20 16:57:13 UTC
Tags:
loader stealer stealc
Link:
https://app.any.run/tasks/516028cd-8e93-47f2-900c-579db65d66a7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching the default Windows debugger (dwwin.exe)
Creating a window
Searching for synchronization primitives
Creating a file
DNS request
Sending an HTTP POST request
Transferring files using the Background Intelligent Transfer Service (BITS)
Sending a custom TCP request
Enabling the 'hidden' option for files in the %temp% directory
Moving a recently created file
Sending an HTTP GET request to an infection source
Creating a file in the %temp% directory
Сreating synchronization primitives
Creating a process from a recently created file
Connecting to a non-recommended domain
Connection attempt
Connection attempt to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm
Link:
https://www.filescan.io/uploads/65fb1525f074ad892e58373c/reports/b91ee137-3652-4e1d-9172-852386b92b62/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/42f37561be993b562340eee4598a6fd7ff612bba49b103703836d6ed866e02df
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/596c6cde-b876-422a-9741-78ee9a394c46
Result
Threat name:
Mars Stealer, PureLog Stealer, Stealc, V
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1412604
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Checks if the current machine is a virtual machine (disk enumeration)
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)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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)
Searches for specific processes (likely to inject)
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 Generic Downloader
Yara detected Mars stealer
Yara detected PureLog Stealer
Yara detected Stealc
Yara detected Vidar stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1412604 Sample: 2WupjR8vsR.exe Startdate: 20/03/2024 Architecture: WINDOWS Score: 100 71 westus2-2.in.applicationinsights.azure.com 2->71 73 westus2-2.in.ai.privatelink.monitor.azure.com 2->73 75 2 other IPs or domains 2->75 101 Snort IDS alert for network traffic 2->101 103 Found malware configuration 2->103 105 Malicious sample detected (through community Yara rule) 2->105 107 13 other signatures 2->107 11 2WupjR8vsR.exe 1 3 2->11         started        16 DGIJEGHDAE.exe 2->16         started        18 DGIJEGHDAE.exe 2->18         started        signatures3 process4 dnsIp5 85 185.172.128.90, 49729, 80 NADYMSS-ASRU Russian Federation 11->85 87 185.172.128.126, 49733, 80 NADYMSS-ASRU Russian Federation 11->87 89 185.172.128.187, 49730, 49731, 80 NADYMSS-ASRU Russian Federation 11->89 67 C:\Users\user\AppData\Local\Temp\u5x4.1.exe, PE32 11->67 dropped 69 C:\Users\user\AppData\Local\Temp\u5x4.0.exe, PE32 11->69 dropped 123 Detected unpacking (changes PE section rights) 11->123 125 Detected unpacking (overwrites its own PE header) 11->125 20 u5x4.0.exe 78 11->20         started        25 u5x4.1.exe 12 8 11->25         started        27 WerFault.exe 21 16 11->27         started        127 Creates autostart registry keys with suspicious names 16->127 29 cmd.exe 16->29         started        31 cmd.exe 18->31         started        file6 signatures7 process8 dnsIp9 77 185.172.128.209, 49732, 80 NADYMSS-ASRU Russian Federation 20->77 79 185.172.128.65, 49756, 80 NADYMSS-ASRU Russian Federation 20->79 59 C:\Users\user\AppData\...\DGIJEGHDAE.exe, PE32 20->59 dropped 61 C:\Users\user\AppData\...\softokn3[1].dll, PE32 20->61 dropped 63 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 20->63 dropped 65 11 other files (7 malicious) 20->65 dropped 111 Antivirus detection for dropped file 20->111 113 Detected unpacking (changes PE section rights) 20->113 115 Detected unpacking (overwrites its own PE header) 20->115 121 9 other signatures 20->121 33 cmd.exe 20->33         started        81 svc.iolo.com 20.157.87.45, 49734, 49752, 80 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 25->81 117 Checks if the current machine is a virtual machine (disk enumeration) 25->117 36 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 14 9 25->36         started        38 conhost.exe 29->38         started        40 PING.EXE 29->40         started        119 Uses ping.exe to sleep 31->119 42 conhost.exe 31->42         started        44 PING.EXE 31->44         started        file10 signatures11 process12 signatures13 91 Uses ping.exe to sleep 33->91 93 Uses ping.exe to check the status of other devices and networks 33->93 46 DGIJEGHDAE.exe 33->46         started        49 conhost.exe 33->49         started        95 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 36->95 97 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 36->97 99 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 36->99 process14 signatures15 129 Multi AV Scanner detection for dropped file 46->129 51 cmd.exe 46->51         started        process16 signatures17 109 Uses ping.exe to sleep 51->109 54 PING.EXE 51->54         started        57 conhost.exe 51->57         started        process18 dnsIp19 83 2.2.2.2 FranceTelecom-OrangeFR France 54->83
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/42f37561be993b562340eee4598a6fd7ff612bba49b103703836d6ed866e02df
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/42f37561be993b562340eee4598a6fd7ff612bba49b103703836d6ed866e02df/
Threat name:
Win32.Trojan.Smokeloader
Create hunting rule
Status:
Malicious
First seen:
2024-03-19 00:44:00 UTC
File Type:
PE (Exe)
Extracted files:
36
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ilzxkyn6te5vmi2a53sftctp277wck52jgyqg4byg3lo3btoalpq._file
Verdict:
malicious
Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:stealc family:zgrat discovery persistence rat spyware stealer
Link:
https://tria.ge/reports/240320-vfnp3sdd23/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
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
Stealc
ZGRat
Unpacked files
SH256 hash:
3eb47ce25815c3e32395ce8999c99775f9046c861d67b5105338bcbbc5b71b3b
MD5 hash:
071b5906189378941198f9fdcc671524
SHA1 hash:
a485c131c2d24942e80d4e09c70bfdb606ef3c1d
Link:
https://www.unpac.me/results/9860ca02-9160-4994-8ad7-e1d46a2a1fef/
Parent samples :
e70dcf3f915087251224a7db3850669c000a6da68ef2b55e3e2eda196cb01fc3
9f48fc874f3a8b96da4bf2e0ae1157ab6c717c4b5248363450e2796ae8ac67bf
SH256 hash:
42f37561be993b562340eee4598a6fd7ff612bba49b103703836d6ed866e02df
MD5 hash:
157d8abb98909d890ff4045f7e67968c
SHA1 hash:
fc91daff62566d67a2336130607187160f1b19c1
Link:
https://www.unpac.me/results/9860ca02-9160-4994-8ad7-e1d46a2a1fef/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/42f37561be99/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/42f37561be993b562340eee4598a6fd7ff612bba49b103703836d6ed866e02df

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:command_and_control
Create hunting rule
Author:CD_R0M_
Description:This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:Windows_Trojan_Smokeloader_3687686f
Create hunting rule
Author:Elastic Security

File information

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

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::FindNextVolumeMountPointW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetVolumeInformationW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::FreeConsole
KERNEL32.dll::PeekConsoleInputW
KERNEL32.dll::ReadConsoleA
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasA
KERNEL32.dll::GetConsoleAliasExesLengthW
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryA
KERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileW
KERNEL32.dll::GetWindowsDirectoryW
KERNEL32.dll::RemoveDirectoryW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::QueryDosDeviceW
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpOpen
WIN_USER_APIPerforms GUI ActionsUSER32.dll::ActivateKeyboardLayout

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