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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 826accec4edd1e4deefc838542a8a515f642cf549af271dd28ac21eb964b57f4. 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: 17


Intelligence 17 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 826accec4edd1e4deefc838542a8a515f642cf549af271dd28ac21eb964b57f4
SHA3-384 hash: 6ecc2e6daf5600ba4de91f47b0e1fdf80f65669ea5691b61bafe23220c442ba65f9eba6f206955b1ea02e32edbe7c19a
SHA1 hash: 8f1997321bed1cae7b5576f774577cc28b3e211a
MD5 hash: 88d63cf512fe24be659489e0cf795f33
humanhash: arizona-foxtrot-venus-december
File name:Pending Invoices.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:723'568 bytes
First seen:2026-01-26 22:52:39 UTC
Last seen:2026-02-05 15:38:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash c05041e01f84e1ccca9c4451f3b6a383 (142 x RedLineStealer, 109 x GuLoader, 64 x DiamondFox)
ssdeep 12288:6gNbFvEbPCW5zKMbVZdgcwrp3YPPTc2XIRNEa5id/eFiJJDmfJSCewJkiBiN:6gNbxEbKW5zzbVQ6P7cr5SeFiJmJdJkh
TLSH T138F423292544D063DFB6053309389BB96E65BDF71178864BBBC03F2EB5DA3B2390A750
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
dhash icon a67773555d7973a6 (7 x RemcosRAT, 2 x GuLoader)
Reporter threatcat_ch
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Pleiochromic
Issuer:Pleiochromic
Algorithm:sha256WithRSAEncryption
Valid from:2026-01-18T09:57:46Z
Valid to:2027-01-18T09:57:46Z
Serial number: 3ce08b54a50925e133b5bee1d842a36d0d960e9d
Thumbprint Algorithm:SHA256
Thumbprint: 88645d150435c1d66acf740841c5f3c22173a7cae47bdc9a4345d170fde07134
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
170
Origin country :
CH CH
Vendor Threat Intelligence
Malware configuration found for:
GuLoader NSIS
Details
GuLoader
an XOR decryption key and an extracted component
GuLoader
a c2 URL, a useragent string, and a string XOR key
NSIS
extracted archive contents
Link:
https://research.acce.ciphertechsolutions.com/results/54ba3f36-495a-4a9c-9b8f-1d662807396f/
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Pending Invoices.exe
Verdict:
Malicious activity
Analysis date:
2026-01-26 22:55:04 UTC
Tags:
rat remcos auto-reg remote stealer
Link:
https://app.any.run/tasks/7dac657c-da4c-4a06-a4b9-7c15024e5e01

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/50297/
Detection(s):
SecuriteInfo.com.Trojan.Loader.1575.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6977f05dbec9764f452f20ee
Tags:
injection obfusc
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole installer installer installer-heuristic masquerade microsoft_visual_cc nsis signed soft-404
Link:
https://www.filescan.io/uploads/6977f05d09c19dc155843012/reports/e51d6e96-dc4d-4d34-8a47-259788708161/overview
Verdict:
Malicious
Labled as:
Malware_53.5
Link:
https://www.hybrid-analysis.com/sample/826accec4edd1e4deefc838542a8a515f642cf549af271dd28ac21eb964b57f4
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-01-26T19:25:00Z UTC
Last seen:
2026-01-28T11:25:00Z UTC
Hits:
~1000
Detections:
Trojan-Downloader.Win32.Minix.sb Trojan.Win32.Guloader.sb Trojan.NSIS.Makoob.sba Backdoor.Win32.Remcos.sb UDS:DangerousObject.Multi.Generic HEUR:Trojan.Win32.Guloader.gen
Link:
https://opentip.kaspersky.com/826accec4edd1e4deefc838542a8a515f642cf549af271dd28ac21eb964b57f4/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/4f383f2c-f0f7-4416-841e-6294c9e5c10f
Result
Threat name:
Remcos, GuLoader
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1857986
Signature
AI detected suspicious PE digital signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Creates autostart registry keys with suspicious names
Detected Remcos RAT
Found direct / indirect Syscall (likely to bypass EDR)
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Joe Sandbox ML detected suspicious sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Unusual module load detection (module proxying)
Writes to foreign memory regions
Yara detected GuLoader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1857986 Sample: Pending Invoices.exe Startdate: 26/01/2026 Architecture: WINDOWS Score: 100 73 drive.usercontent.google.com 2->73 75 drive.google.com 2->75 93 Suricata IDS alerts for network traffic 2->93 95 Found malware configuration 2->95 97 Antivirus detection for dropped file 2->97 99 13 other signatures 2->99 10 Pending Invoices.exe 1 69 2->10         started        14 remcos.exe 33 2->14         started        16 remcos.exe 13 2->16         started        18 remcos.exe 2->18         started        signatures3 process4 file5 67 C:\Users\user\AppData\Local\...\System.dll, PE32 10->67 dropped 113 Found direct / indirect Syscall (likely to bypass EDR) 10->113 20 Pending Invoices.exe 2 10 10->20         started        25 Pending Invoices.exe 10->25         started        69 C:\Users\user\AppData\Local\...\System.dll, PE32 14->69 dropped 27 remcos.exe 14->27         started        29 remcos.exe 14->29         started        signatures6 process7 dnsIp8 77 drive.google.com 142.251.40.110, 443, 49720, 49726 GOOGLEUS United States 20->77 79 drive.usercontent.google.com 142.251.40.97, 443, 49723, 49727 GOOGLEUS United States 20->79 55 C:\ProgramData\Remcos\remcos.exe, PE32 20->55 dropped 57 C:\ProgramData\...\remcos.exe:Zone.Identifier, ASCII 20->57 dropped 101 Detected Remcos RAT 20->101 103 Creates autostart registry keys with suspicious names 20->103 31 remcos.exe 33 20->31         started        35 Pending Invoices.exe 20->35         started        81 172.217.12.129, 443, 49732 GOOGLEUS United States 27->81 105 Found direct / indirect Syscall (likely to bypass EDR) 27->105 37 remcos.exe 27->37         started        file9 signatures10 process11 file12 71 C:\Users\user\AppData\Local\...\System.dll, PE32 31->71 dropped 85 Antivirus detection for dropped file 31->85 87 Multi AV Scanner detection for dropped file 31->87 89 Found hidden mapped module (file has been removed from disk) 31->89 91 3 other signatures 31->91 39 remcos.exe 4 16 31->39         started        44 remcos.exe 31->44         started        signatures13 process14 dnsIp15 83 172.245.209.194, 2404, 49728, 49729 AS-COLOCROSSINGUS United States 39->83 59 C:\Users\user\AppData\Local\Temp\THF693.tmp, MS-DOS 39->59 dropped 61 C:\Users\user\AppData\Local\Temp\THF654.tmp, MS-DOS 39->61 dropped 63 C:\Users\user\AppData\Local\Temp\THF634.tmp, MS-DOS 39->63 dropped 65 6 other malicious files 39->65 dropped 107 Detected Remcos RAT 39->107 109 Writes to foreign memory regions 39->109 111 Maps a DLL or memory area into another process 39->111 46 RmClient.exe 39->46         started        49 RmClient.exe 39->49         started        51 RmClient.exe 39->51         started        53 9 other processes 39->53 file16 signatures17 process18 signatures19 115 Tries to steal Mail credentials (via file registry) 46->115 117 Unusual module load detection (module proxying) 46->117 119 Tries to steal Instant Messenger accounts or passwords 49->119 121 Tries to steal Mail credentials (via file / registry access) 49->121 123 Tries to harvest and steal browser information (history, passwords, etc) 53->123
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/826accec4edd1e4deefc838542a8a515f642cf549af271dd28ac21eb964b57f4
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/826accec4edd1e4deefc838542a8a515f642cf549af271dd28ac21eb964b57f4/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/826accec4edd1e4deefc838542a8a515f642cf549af271dd28ac21eb964b57f4
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2026-01-26 22:53:26 UTC
File Type:
PE (Exe)
Extracted files:
30
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qjvmz3co3upe33x4qocufkffcx3eft2utlzhdxjivqq6xfslk72a._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
error
GuLoader
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery persistence rat
Link:
https://tria.ge/reports/260126-2t3vgsdt3d/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Contacts third-party web service commonly abused for C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Detected Nirsoft tools
NirSoft MailPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
172.245.209.194:2404
Unpacked files
SH256 hash:
826accec4edd1e4deefc838542a8a515f642cf549af271dd28ac21eb964b57f4
MD5 hash:
88d63cf512fe24be659489e0cf795f33
SHA1 hash:
8f1997321bed1cae7b5576f774577cc28b3e211a
Link:
https://www.unpac.me/results/5a043554-009a-4bbc-a263-c27f614ffb83/
SH256 hash:
acf90ab6f4edc687e94aaf604d05e16e6cfb5e35873783b50c66f307a35c6506
MD5 hash:
6e55a6e7c3fdbd244042eb15cb1ec739
SHA1 hash:
070ea80e2192abc42f358d47b276990b5fa285a9
Link:
https://www.unpac.me/results/5a043554-009a-4bbc-a263-c27f614ffb83/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/826accec4edd/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.52
Link:
https://yomi.yoroi.company/submissions/826accec4edd1e4deefc838542a8a515f642cf549af271dd28ac21eb964b57f4

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:Detect_NSIS_Nullsoft_Installer
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects NSIS installers by .ndata section + NSIS header string
Rule name:PE_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 826accec4edd1e4deefc838542a8a515f642cf549af271dd28ac21eb964b57f4

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/50297/

Comments