MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e37bec79cc507a86f38d7e5d426b30fa3773d8ad229cabb008a9b5ae6ea9f5e0. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e37bec79cc507a86f38d7e5d426b30fa3773d8ad229cabb008a9b5ae6ea9f5e0
SHA3-384 hash: 025eaa983daeacec66c83629c4f0a8da6c1ad0fb7a44916886929bee8018bca23845751292ddc173e1f39bf9e6b16a9f
SHA1 hash: 5ad735d2f1cc1beee07243f4403b90f9d3806269
MD5 hash: 2b549fd8e930d9adbfdc0b36c3b0586d
humanhash: july-sad-mountain-item
File name:e37bec79cc507a86f38d7e5d426b30fa3773d8ad229cabb008a9b5ae6ea9f5e0
Download: download sample
Signature GuLoader
Create hunting rule
File size:619'176 bytes
First seen:2025-05-09 14:28:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 573bb7b41bc641bd95c0f5eec13c233b (23 x GuLoader, 13 x VIPKeylogger, 9 x XWorm)
ssdeep 12288:tTA5fLmxsDTqU0uIQh0/LZM9+eCaRuYazzF9h2r0LL9sXAWhHU9:tTA5fLmxxnPRqA7Yazpg0LH
TLSH T12FD42280C7D588E6E81302761DB17A172693BF9951F45E8A9F1A3B9038F3683913FB4D
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 155575b14141c4c4 (2 x GuLoader)
Reporter adrian__luca
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Teinets
Issuer:Teinets
Algorithm:sha256WithRSAEncryption
Valid from:2024-09-11T00:33:12Z
Valid to:2025-09-11T00:33:12Z
Serial number: 7787354020804491399675fa7d78727e0f175f98
Thumbprint Algorithm:SHA256
Thumbprint: 97f5140dcf519d32ea7b982499c70d316723957d134ec50f92e66d0120c2bcd9
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
326
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
e37bec79cc507a86f38d7e5d426b30fa3773d8ad229cabb008a9b5ae6ea9f5e0
Verdict:
Malicious activity
Analysis date:
2025-05-10 01:00:18 UTC
Tags:
auto-reg remcos rat upx
Link:
https://app.any.run/tasks/a1fa6e1c-a83b-4810-943a-49dbafc880e7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=681e128fe16384d6a7034e5d
Tags:
injection uloader virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Creating a file in the %temp% directory
Delayed reading of the file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context blackhole guloader installer microsoft_visual_cc overlay packed signed
Link:
https://www.filescan.io/uploads/681e113f0b64e174c41fc87d/reports/2ec21665-cbce-485f-bacd-641808c352ca/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/e37bec79cc507a86f38d7e5d426b30fa3773d8ad229cabb008a9b5ae6ea9f5e0
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/0ec8bc65-e445-492f-974e-38798fb2eecc
Result
Threat name:
Remcos, GuLoader
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1685925
Signature
AI detected suspicious PE digital signature
Antivirus detection for URL or domain
Detected Remcos RAT
Disable UAC(promptonsecuredesktop)
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
Sample uses process hollowing technique
Sigma detected: New RUN Key Pointing to Suspicious Folder
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)
Writes to foreign memory regions
Yara detected GuLoader
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1685925 Sample: 56x91CiAY5.exe Startdate: 09/05/2025 Architecture: WINDOWS Score: 100 31 www.khavar.com 2->31 33 pki-goog.l.google.com 2->33 35 2 other IPs or domains 2->35 51 Suricata IDS alerts for network traffic 2->51 53 Antivirus detection for URL or domain 2->53 55 Multi AV Scanner detection for submitted file 2->55 57 6 other signatures 2->57 8 56x91CiAY5.exe 1 51 2->8         started        12 Stempelkortenes.exe 24 2->12         started        signatures3 process4 file5 25 C:\Users\user\AppData\Local\...\System.dll, PE32 8->25 dropped 27 C:\Users\user\AppData\...\Stempelkortenes.exe, PE32 8->27 dropped 59 Tries to detect virtualization through RDTSC time measurements 8->59 61 Switches to a custom stack to bypass stack traces 8->61 14 56x91CiAY5.exe 5 14 8->14         started        29 C:\Users\user\AppData\Local\...\System.dll, PE32 12->29 dropped 63 Multi AV Scanner detection for dropped file 12->63 signatures6 process7 dnsIp8 37 198.23.227.212, 32583, 49702, 49704 AS-COLOCROSSINGUS United States 14->37 39 www.khavar.com 45.139.11.193, 443, 49700, 49701 PTPEU Iran (ISLAMIC Republic Of) 14->39 41 geoplugin.net 178.237.33.50, 49703, 80 ATOM86-ASATOM86NL Netherlands 14->41 65 Detected Remcos RAT 14->65 67 Writes to foreign memory regions 14->67 69 Maps a DLL or memory area into another process 14->69 71 2 other signatures 14->71 18 recover.exe 2 14->18         started        21 recover.exe 1 14->21         started        23 recover.exe 1 14->23         started        signatures9 process10 signatures11 43 Tries to steal Mail credentials (via file registry) 18->43 45 Tries to harvest and steal browser information (history, passwords, etc) 18->45 47 Tries to steal Instant Messenger accounts or passwords 21->47 49 Tries to steal Mail credentials (via file / registry access) 23->49
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e37bec79cc507a86f38d7e5d426b30fa3773d8ad229cabb008a9b5ae6ea9f5e0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e37bec79cc507a86f38d7e5d426b30fa3773d8ad229cabb008a9b5ae6ea9f5e0/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2025-04-26 06:50:03 UTC
File Type:
PE (Exe)
Extracted files:
22
AV detection:
22 of 37 (59.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4n56y6omkb5in44npzoue2zq7i3xhwfnekokxmaivg2243vj6xqa._file
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader persistence upx
Link:
https://tria.ge/reports/250509-rtqj2swqy2/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
UPX packed file
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Guloader family
Guloader,Cloudeye
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d95847a5-65e6-43e8-9f0f-6c9fa4432b17
Unpacked files
SH256 hash:
e37bec79cc507a86f38d7e5d426b30fa3773d8ad229cabb008a9b5ae6ea9f5e0
MD5 hash:
2b549fd8e930d9adbfdc0b36c3b0586d
SHA1 hash:
5ad735d2f1cc1beee07243f4403b90f9d3806269
Link:
https://www.unpac.me/results/2e270580-9d86-4409-8b9b-a9f2a9b3a19a/
SH256 hash:
8b4c47c4cf5e76ec57dd5a050d5acd832a0d532ee875d7b44f6cdaf68f90d37c
MD5 hash:
9b38a1b07a0ebc5c7e59e63346ecc2db
SHA1 hash:
97332a2ffcf12a3e3f27e7c05213b5d7faa13735
Link:
https://www.unpac.me/results/2e270580-9d86-4409-8b9b-a9f2a9b3a19a/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e37bec79cc50/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/e37bec79cc507a86f38d7e5d426b30fa3773d8ad229cabb008a9b5ae6ea9f5e0

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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::SHFileOperationW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDiskFreeSpaceW
KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::MoveFileExW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::OpenClipboard
USER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

Comments