MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4117cfa44e461122d319394e630e4836d6977b949de9a678e13c4772a10f6df9. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4117cfa44e461122d319394e630e4836d6977b949de9a678e13c4772a10f6df9
SHA3-384 hash: bb71635c0f50585bbbfa52631f712ab446044ff78227e81e655c78d786df1a98e9bb5d9755d7c0c9781c768ae66e9577
SHA1 hash: 3db0844c2ff760a2d8f07c6de1d2efca8ec3c76f
MD5 hash: 9c119ae4550475cfbdc9d3ee5f73b5f5
humanhash: apart-pennsylvania-alpha-spring
File name:Scan_0024034 pdf.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:465'800 bytes
First seen:2023-08-09 12:35:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (532 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 6144:DlgvTRHybTTGup5sbH+iJ8sCYkv+fVERRRbxMI9hnPrYxmMltkb8e+LF03bx2:J2wGus2sCYk+dETRbiIznQVC85i3bM
TLSH T133A4E0A1F3958CCBDC9E63744877BE172162ED6AAC71061F119A77E86DB3383106780B
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) (4505/5/1)
File icon (PE):PE icon
dhash icon 62e0d8d6ec6cb0b0 (2 x GuLoader)
Reporter malwarelabnet
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-10-01T06:43:57Z
Valid to:2025-09-30T06:43:57Z
Serial number: 6d6b544365b8daaddb30524a0c6e20168f062389
Thumbprint Algorithm:SHA256
Thumbprint: ec218222b124b0a17cff7f5aeff12233a29d69785b6cfc2a79bd921ed99a404b
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
295
Origin country :
CA CA
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Scan_0024034 pdf.exe
Verdict:
Suspicious activity
Analysis date:
2023-08-09 14:48:18 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4567ca48-61a2-4aee-b510-3580f8025171

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/441617/
Detection(s):
SecuriteInfo.com.FileRepMalware.18070.3533.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Sending a custom TCP request
Creating a window
Creating a file in the %temp% directory
Creating a file in the %AppData% subdirectories
Creating a file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/102266/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/64d388344154db2bd523b513/reports/183752ab-7148-41f9-9bae-925e3171cc0f/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4117cfa44e461122d319394e630e4836d6977b949de9a678e13c4772a10f6df9
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:
Unknown
Link:
https://analyze.intezer.com/analyses/c50f3b74-5ab9-4987-a780-b93f234a92cf
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1288534
Signature
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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 GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1288534 Sample: Scan_0024034_pdf.exe Startdate: 09/08/2023 Architecture: WINDOWS Score: 96 35 b3solutionscws.com 2->35 37 api4.ipify.org 2->37 39 api.ipify.org 2->39 49 Multi AV Scanner detection for submitted file 2->49 51 Yara detected GuLoader 2->51 53 May check the online IP address of the machine 2->53 55 2 other signatures 2->55 8 Scan_0024034_pdf.exe 3 34 2->8         started        12 DsdD.exe 2 2->12         started        14 DsdD.exe 1 2->14         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\System.dll, PE32 8->29 dropped 57 Writes to foreign memory regions 8->57 59 Tries to detect Any.run 8->59 16 CasPol.exe 17 13 8->16         started        21 conhost.exe 12->21         started        23 conhost.exe 14->23         started        signatures6 process7 dnsIp8 31 api4.ipify.org 64.185.227.156, 443, 49723 WEBNXUS United States 16->31 33 b3solutionscws.com 192.185.145.188, 49722, 80 UNIFIEDLAYER-AS-1US United States 16->33 27 C:\Users\user\AppData\Roaming\DsdD\DsdD.exe, PE32 16->27 dropped 41 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->41 43 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->43 45 Tries to steal Mail credentials (via file / registry access) 16->45 47 3 other signatures 16->47 25 conhost.exe 16->25         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4117cfa44e461122d319394e630e4836d6977b949de9a678e13c4772a10f6df9/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-08-09 12:36:06 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
3 of 38 (7.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iel47jcoiyisfuyzhfhggdsig3ljo64utxu2m6hbhrdxfiipnx4q._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230809-psxkvsbc34/
Behaviour
Enumerates physical storage devices
Loads dropped DLL
Unpacked files
SH256 hash:
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
MD5 hash:
75ed96254fbf894e42058062b4b4f0d1
SHA1 hash:
996503f1383b49021eb3427bc28d13b5bbd11977
Link:
https://www.unpac.me/results/b28ca21a-147e-42a6-acc9-5424c48e9243/
SH256 hash:
4117cfa44e461122d319394e630e4836d6977b949de9a678e13c4772a10f6df9
MD5 hash:
9c119ae4550475cfbdc9d3ee5f73b5f5
SHA1 hash:
3db0844c2ff760a2d8f07c6de1d2efca8ec3c76f
Link:
https://www.unpac.me/results/b28ca21a-147e-42a6-acc9-5424c48e9243/
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/4117cfa44e461122d319394e630e4836d6977b949de9a678e13c4772a10f6df9

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.

Cape
Cape
https://www.capesandbox.com/analysis/441617/

Comments