MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 42a4626de8646d49df1c5ffa151c05c724b5b7d32d0131d0228189aff81db945. 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


CustomerLoader


Vendor detections: 12


Intelligence 12 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 42a4626de8646d49df1c5ffa151c05c724b5b7d32d0131d0228189aff81db945
SHA3-384 hash: 56cde05465284f78390b42b8809ca701cf9982d7e7082f459ecbcce2749ae24f72742042383f13a4d7cd85114ccf6dd9
SHA1 hash: 65f9175623f0c5caeba36d743187f016c3fbb285
MD5 hash: e93c062d29437707f7740cdbcba11a0e
humanhash: failed-pasta-east-nineteen
File name:grjcSvsh1a.exe
Download: download sample
Signature CustomerLoader
Create hunting rule
File size:226'816 bytes
First seen:2023-07-10 09:37:39 UTC
Last seen:2023-07-28 04:42:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 6144:mAkzL7r9r/EDppppppppppppppppppppppppppppp0Gi:CP7r9r/+pppppppppppppppppppppppC
Threatray 25 similar samples on MalwareBazaar
TLSH T138242CC5E98455A0DD59AB706A36CD3592237EFDA874A42C28DE3E273FFB2D31026053
TrID 44.4% (.EXE) Win64 Executable (generic) (10523/12/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
File icon (PE):PE icon
dhash icon d4c4c4d8ccd4f0cc (241 x AgentTesla, 65 x Loki, 41 x Formbook)
Reporter adrian__luca
Tags:CustomerLoader exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
256
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
grjcSvsh1a.exe
Verdict:
Suspicious activity
Analysis date:
2023-07-10 10:39:16 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/697b00cf-9daa-48e4-87e0-719b7666d9a5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/413463/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.68007940.66.24401.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Launching a process
Creating a process from a recently created file
Creating a service
Launching a service
Loading a system driver
Creating a file in the Windows subdirectories
Creating a file in the Windows directory
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Reading critical registry keys
Sending an HTTP GET request
Creating a window
Searching for the window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Enabling autorun for a service
Blocking the User Account Control
Forced shutdown of a system process
Stealing user critical data
Enabling autorun by creating a file
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/64abd19167f70195b4434274/reports/7724a08d-e770-4d70-873f-037ed31594c5/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/42a4626de8646d49df1c5ffa151c05c724b5b7d32d0131d0228189aff81db945
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c00b9d89-4d7d-445b-812c-d451679410a5
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1269612
Signature
Antivirus detection for URL or domain
Drops PE files with benign system names
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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 video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample is not signed and drops a device driver
Sigma detected: Schedule system process
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1269612 Sample: grjcSvsh1a.exe Startdate: 10/07/2023 Architecture: WINDOWS Score: 100 58 Malicious sample detected (through community Yara rule) 2->58 60 Antivirus detection for URL or domain 2->60 62 Multi AV Scanner detection for dropped file 2->62 64 7 other signatures 2->64 7 grjcSvsh1a.exe 15 7 2->7         started        12 svchost.exe 2 2->12         started        14 svchost.exe 2->14         started        16 3 other processes 2->16 process3 dnsIp4 50 kyliansuperm92139124.shop 104.21.18.206, 443, 49710, 49712 CLOUDFLARENETUS United States 7->50 40 C:\Users\user\AppData\Roaming\svchost.exe, PE32+ 7->40 dropped 42 C:\Users\user\AppData\...\grjcSvsh1a.exe.log, ASCII 7->42 dropped 68 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->68 70 Drops PE files with benign system names 7->70 18 cmd.exe 1 7->18         started        20 cmd.exe 1 7->20         started        72 System process connects to network (likely due to code injection or exploit) 12->72 74 Multi AV Scanner detection for dropped file 12->74 76 Machine Learning detection for dropped file 12->76 44 C:\Windows\Temp\urxivxly.inf, Windows 14->44 dropped 23 cmstp.exe 14->23         started        46 C:\Windows\Temp\cmsxxwlu.inf, Windows 16->46 dropped 25 cmstp.exe 16->25         started        file5 signatures6 process7 signatures8 27 svchost.exe 3 18->27         started        32 conhost.exe 18->32         started        34 timeout.exe 1 18->34         started        66 Uses schtasks.exe or at.exe to add and modify task schedules 20->66 36 conhost.exe 20->36         started        38 schtasks.exe 1 20->38         started        process9 dnsIp10 52 172.67.183.88, 443, 49711, 49713 CLOUDFLARENETUS United States 27->52 54 kyliansuperm92139124.shop 27->54 56 192.168.2.1 unknown unknown 27->56 48 C:\Zemana.sys, PE32+ 27->48 dropped 78 Sample is not signed and drops a device driver 27->78 file11 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/42a4626de8646d49df1c5ffa151c05c724b5b7d32d0131d0228189aff81db945/
Threat name:
ByteCode-MSIL.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-07-08 16:27:43 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
36
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iksge3pimrwutxy4l75bkhafy4slln6tfuatdubcqge276a5xfcq._file
Verdict:
malicious
Similar samples:
312a01b589aea6e8dfc11fdd5a362228970074eeec1a97d36f23f99b48b586f0
CustomerLoader
65831b6a853bb664e7f189003da9cdda832e5bcf647c1e262b3bc80acb715814
CustomerLoader
8182fd64aabdf1d67f00c87fe9d90fa7d52be56284738995446f82890205dc93
CustomerLoader
89af6da42a2b79363c1533c02ec27190fbd1363a92009dd677b13e2fb9a0c7d6
CustomerLoader
a5ae679843b00396ed2349a9ce7d3d0dc077defb4f83c89489d4c2065863e0f7
CustomerLoader
b82291de6b50625fbe64293024d4b7d3f1bc874e14d8a6c613b56cf4c5854d30
CustomerLoader
ea483b01f53c950bbb8531487f0516d278388b96ef480ae786a009159acf29a5
CustomerLoader
eb51def4151ae6c16d06ebb7e170dc7f1910932c172cf9aa1719d3d6bbc043b5
CustomerLoader
fbbad7f1ea80336f2d11ec3df5d547fedcca56d3def4eb369f605122b02f3f34
CustomerLoader
+ 15 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  9/10
Tags:
evasion persistence
Link:
https://tria.ge/reports/230710-ll4h2shf65/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Adds Run key to start application
Maps connected drives based on registry
Checks BIOS information in registry
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Unpacked files
SH256 hash:
42a4626de8646d49df1c5ffa151c05c724b5b7d32d0131d0228189aff81db945
MD5 hash:
e93c062d29437707f7740cdbcba11a0e
SHA1 hash:
65f9175623f0c5caeba36d743187f016c3fbb285
Detections:
win_cannon_auto
Create hunting rule
Link:
https://www.unpac.me/results/00893712-188b-44d1-8782-e8cd5d57a17d/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/42a4626de864/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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:win_cannon_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Malspam

CustomerLoader

Executable exe 42a4626de8646d49df1c5ffa151c05c724b5b7d32d0131d0228189aff81db945

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/413463/

Comments