MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 79615e60c7ca68b522e02e056ef6b688835a2d28eb188d3860fec0c74b5f5e9f. 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


GuLoader


Vendor detections: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 79615e60c7ca68b522e02e056ef6b688835a2d28eb188d3860fec0c74b5f5e9f
SHA3-384 hash: 7d40645dda1e291aa163013f737f23ced2e677094a83e35a49bbf4dc713ddb0b86d48669abe1131736d9f6df92d1088b
SHA1 hash: 074f0edd0fcfe75d38aca8dc72cfd5d538c3818e
MD5 hash: 175347cb1c91ab6450e994f2f3092176
humanhash: winner-freddie-nevada-four
File name:ekstre.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:732'496 bytes
First seen:2024-02-14 12:42:09 UTC
Last seen:2024-02-14 14:30:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash e2a592076b17ef8bfb48b7e03965a3fc (385 x GuLoader, 58 x RemcosRAT, 40 x AgentTesla)
ssdeep 12288:QcgyG3BVhAEFAOvBodsvSdZIxifyvYMaQyLi6R/LohEdIxL33vfR:QSCB7FJvSPAiqvYML3eU33HR
TLSH T121F412542B58CD13EBA212349075F37D5B34EFAC291AC743AAEE3C9F3A667596C28104
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 f8dcd8dceceeecc0 (6 x GuLoader)
Reporter lowmal3
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Donkraft
Issuer:Donkraft
Algorithm:sha256WithRSAEncryption
Valid from:2023-08-09T09:22:34Z
Valid to:2026-08-08T09:22:34Z
Serial number: 7d06ed1ace919f16e7a9aacdbe5737dd79d74626
Thumbprint Algorithm:SHA256
Thumbprint: 41547c35965b132fdff19ef868f27a22171100643aeba614c9728cbcddbb336c
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
330
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
79615e60c7ca68b522e02e056ef6b688835a2d28eb188d3860fec0c74b5f5e9f.exe
Verdict:
Malicious activity
Analysis date:
2024-02-14 12:43:08 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/9dce8026-af71-4c5f-b383-0e5e8ecbda11

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/476133/
Detection(s):
SecuriteInfo.com.FileRepMalware.12326.22449.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% subdirectories
Searching for the Windows task manager window
Launching a process
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Creating a file
Unauthorized injection to a recently created process
Creating a process from a recently created file
Unauthorized injection to a recently created process by context flags manipulation
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
installer lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/65ccb55a54f1a1b63b6e8e07/reports/a2763792-a097-44f0-8402-aa9d91ad3e4e/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/79615e60c7ca68b522e02e056ef6b688835a2d28eb188d3860fec0c74b5f5e9f
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/91e16525-976b-4ff5-bf54-ef75ab2d0219
Result
Threat name:
AgentTesla, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1392116
Signature
Antivirus detection for URL or domain
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Hides threads from debuggers
Installs a global keyboard hook
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Powershell drops PE file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1392116 Sample: ekstre.exe Startdate: 14/02/2024 Architecture: WINDOWS Score: 100 36 smtp.gmail.com 2->36 38 excelbuilding.co.uk 2->38 40 api.ipify.org 2->40 50 Found malware configuration 2->50 52 Antivirus detection for URL or domain 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 2 other signatures 2->56 8 ekstre.exe 34 2->8         started        signatures3 process4 file5 22 C:\Users\user\AppData\Roaming\...\tmrer.tre, Apollo 8->22 dropped 24 C:\Users\user\AppData\Roaming\...\Afsnre.Ire, ASCII 8->24 dropped 26 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 8->26 dropped 58 Suspicious powershell command line found 8->58 12 powershell.exe 18 8->12         started        signatures6 process7 file8 28 C:\Users\user\...\Pentadecahydrated.exe, PE32 12->28 dropped 60 Writes to foreign memory regions 12->60 62 Found suspicious powershell code related to unpacking or dynamic code loading 12->62 64 Hides threads from debuggers 12->64 66 Powershell drops PE file 12->66 16 Pentadecahydrated.exe 15 8 12->16         started        20 conhost.exe 12->20         started        signatures9 process10 dnsIp11 30 smtp.gmail.com 142.250.105.108, 49708, 49709, 49710 GOOGLEUS United States 16->30 32 64.233.185.108, 49712, 49713, 49714 GOOGLEUS United States 16->32 34 2 other IPs or domains 16->34 42 Multi AV Scanner detection for dropped file 16->42 44 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->44 46 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->46 48 4 other signatures 16->48 signatures12
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/79615e60c7ca68b522e02e056ef6b688835a2d28eb188d3860fec0c74b5f5e9f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/79615e60c7ca68b522e02e056ef6b688835a2d28eb188d3860fec0c74b5f5e9f/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-02-14 12:43:06 UTC
File Type:
PE (Exe)
Extracted files:
9
AV detection:
15 of 24 (62.50%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pfqv4yghzjulkixafycw55vwrcbvulji5mmi2oda73amos27l2pq._file
Verdict:
unknown
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:guloader downloader keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240214-pxxfnaaf2y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Looks up external IP address via web service
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Guloader,Cloudeye
Unpacked files
SH256 hash:
c4c6fe032f3cd8b31528d7b99661f85ee22cb78746aee98ec568431d4f5043f7
MD5 hash:
b55f7f1b17c39018910c23108f929082
SHA1 hash:
1601f1cc0d0d6bcf35799b7cd15550cd01556172
Link:
https://www.unpac.me/results/3479fd7d-2255-4d6a-90e2-32190c18a8c1/
SH256 hash:
e69ee897084fcdaf301b710386853fe867c9ed036222be44ba7b5a080e828ffb
MD5 hash:
1a6d0cfb6b904c4bf63491728ce9cf06
SHA1 hash:
ad29426b4888c0f23b758d42320e1ad6cd731133
Link:
https://www.unpac.me/results/3479fd7d-2255-4d6a-90e2-32190c18a8c1/
SH256 hash:
79615e60c7ca68b522e02e056ef6b688835a2d28eb188d3860fec0c74b5f5e9f
MD5 hash:
175347cb1c91ab6450e994f2f3092176
SHA1 hash:
074f0edd0fcfe75d38aca8dc72cfd5d538c3818e
Link:
https://www.unpac.me/results/3479fd7d-2255-4d6a-90e2-32190c18a8c1/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/79615e60c7ca/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/79615e60c7ca68b522e02e056ef6b688835a2d28eb188d3860fec0c74b5f5e9f

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:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

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

Malspam

GuLoader

Executable exe 79615e60c7ca68b522e02e056ef6b688835a2d28eb188d3860fec0c74b5f5e9f

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/476133/

Comments