MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e77bd8a212df784a401a246f58119b58c428963b30b98e08992c715f16e5caeb. 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


RemcosRAT


Vendor detections: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e77bd8a212df784a401a246f58119b58c428963b30b98e08992c715f16e5caeb
SHA3-384 hash: 88be8068ec9b53c1b1451bc9faa1cb39da3dd0260aa5346b0365da8bc55d9e54255f9e941a8f563f702739f47795c70f
SHA1 hash: 4a6b8e4b118f15c9d68dc6caa56757735f4668a7
MD5 hash: c24f095a2027f8c66ced7e6c69240a71
humanhash: bluebird-nine-foxtrot-floor
File name:e77bd8a212df784a401a246f58119b58c428963b30b98e08992c715f16e5caeb
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'384'640 bytes
First seen:2025-05-09 14:30:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7ed0d71376e55d58ab36dc7d3ffda898 (133 x GuLoader, 28 x RemcosRAT, 23 x AgentTesla)
ssdeep 24576:fncIY4zoLa0naVMNDej6y/UDBPBVERKtI7kEGtgfOtAo1G1nHGcdW2ovlFw2y+pM:fncIlzoLa0naVMNCJ/UNPE0tI5Wgk1a3
TLSH T1A755BEC268408396ECBBF2F264DA55391AD52CED91E411896EF5725C04F1AFBCC2E93C
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 0e0e031b156d03a6 (5 x GuLoader, 2 x RemcosRAT)
Reporter adrian__luca
Tags:exe RemcosRAT signed

Code Signing Certificate

Organisation:Brugeruddannelses
Issuer:Brugeruddannelses
Algorithm:sha256WithRSAEncryption
Valid from:2025-02-22T09:03:58Z
Valid to:2026-02-22T09:03:58Z
Serial number: 1389e293a6142f21041b81045f37692da8043761
Thumbprint Algorithm:SHA256
Thumbprint: 99caffb01f06696c10fac2c2c4b55f86bcefc636c8ef4c393eaabb9e84bc6f37
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
323
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Payroll List.PDF.exe
Verdict:
Malicious activity
Analysis date:
2025-04-28 02:52:28 UTC
Tags:
remcos rat remote stealer mpress
Link:
https://app.any.run/tasks/7d225ed2-e4de-474e-b1c7-98e95ddcffe8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=681e12b54a59e5a2ce035c9d
Tags:
uloader virus nsis blic
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file
Searching for the window
Creating a file in the %temp% subdirectories
Delayed reading of the file
Restart of the analyzed sample
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context installer microsoft_visual_cc overlay packed powershell signed
Link:
https://www.filescan.io/uploads/681e11b6c7418694c8a80cbd/reports/c23b62a3-cc64-4696-b9e7-6e2eb98a73c1/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/e77bd8a212df784a401a246f58119b58c428963b30b98e08992c715f16e5caeb
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/c11ae8f0-09fd-412a-b359-1db0f8c6e02b
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1685545
Signature
AI detected suspicious PE digital signature
Antivirus / Scanner detection for submitted sample
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
Score:
96%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e77bd8a212df784a401a246f58119b58c428963b30b98e08992c715f16e5caeb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e77bd8a212df784a401a246f58119b58c428963b30b98e08992c715f16e5caeb/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2025-04-27 21:28:17 UTC
File Type:
PE (Exe)
Extracted files:
9
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4555riqs354euqa2erxvqem3ldccrfr3gc4y4cezfryv6fxfzlvq._file
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader
Link:
https://tria.ge/reports/250509-rvx1hsfp8v/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Legitimate hosting services abused for malware hosting/C2
Loads dropped DLL
Guloader family
Guloader,Cloudeye
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c3c9fc4d-9607-4d6e-9d6a-00918053aaf0
Unpacked files
SH256 hash:
e77bd8a212df784a401a246f58119b58c428963b30b98e08992c715f16e5caeb
MD5 hash:
c24f095a2027f8c66ced7e6c69240a71
SHA1 hash:
4a6b8e4b118f15c9d68dc6caa56757735f4668a7
Link:
https://www.unpac.me/results/92fd0680-cc29-4830-abb2-dc2551677d78/
SH256 hash:
4ff9b2678d698677c5d9732678f9cf53f17290e09d053691aac4cc6e6f595cbe
MD5 hash:
3e6bf00b3ac976122f982ae2aadb1c51
SHA1 hash:
caab188f7fdc84d3fdcb2922edeeb5ed576bd31d
Link:
https://www.unpac.me/results/92fd0680-cc29-4830-abb2-dc2551677d78/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e77bd8a212df/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/e77bd8a212df784a401a246f58119b58c428963b30b98e08992c715f16e5caeb

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
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.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::GetWindowsDirectoryW
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

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