MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ddef88d18fb420a85c2bf1b503e9dad76dc482577ff6dc8d25ca72fb1b2b2528. 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: 15


Intelligence 15 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ddef88d18fb420a85c2bf1b503e9dad76dc482577ff6dc8d25ca72fb1b2b2528
SHA3-384 hash: 561e39e6caadde97689eb362b578f7c744396b85fca62b804bd3e852ea52208bb363a8b3b3ce5c95d7b7cfc615fa8aa3
SHA1 hash: 577813b24681e6c85b85c8f66759f2a9aff5ddf7
MD5 hash: 2d1c5731a178183efee75d2d797a5c5b
humanhash: table-steak-one-hawaii
File name:SI1744 DRAFT.pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:485'280 bytes
First seen:2025-08-22 05:41:50 UTC
Last seen:2025-09-05 13:11:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 12288:aYk0gWQo3Af/eJe/cTmx7ia/z2iJY3+Efgx:aYk0h6FhJ2iJgO
TLSH T1B6A42324BA31A027D9508A705E7E1FBB2AA1FA2617C163336785CF70F941652BD1B70F
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 c4dadadad2f492c2 (25 x GuLoader, 14 x RemcosRAT, 7 x AgentTesla)
Reporter threatcat_ch
Tags:exe RemcosRAT signed

Code Signing Certificate

Organisation:Fordgtigt
Issuer:Fordgtigt
Algorithm:sha256WithRSAEncryption
Valid from:2025-07-06T03:52:54Z
Valid to:2026-07-06T03:52:54Z
Serial number: 0e2c9be27764a1bf71e8a182c70936498d042e06
Thumbprint Algorithm:SHA256
Thumbprint: d80198fc98d34f0012d8bebd6b0962d3ae4dc95d6df25c4942941d931dc85a03
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
90
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
SI1744 DRAFT.pdf.arj
Verdict:
Malicious activity
Analysis date:
2025-08-22 05:41:59 UTC
Tags:
arch-exec remcos rat remote
Link:
https://app.any.run/tasks/7bb996a2-4737-4c2c-9be4-4790b1927afe

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/22870/
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68a8035c8fd55a79c52a114d
Tags:
underscore obfuscated spawn shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Searching for the window
Creating a file
Launching a process
Using the Windows Management Instrumentation requests
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole installer masquerade microsoft_visual_cc overlay overlay signed unsafe
Link:
https://www.filescan.io/uploads/68a8035428a89d9dd4f1f8c4/reports/ee129b83-fbc8-46f8-9003-8cf953e1a790/overview
Verdict:
Malicious
Labled as:
Trojan.SCTemp
Link:
https://www.hybrid-analysis.com/sample/ddef88d18fb420a85c2bf1b503e9dad76dc482577ff6dc8d25ca72fb1b2b2528
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/b794c678-4f62-4015-a9f6-f175e7a258d6
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1762653
Signature
AI detected suspicious PE digital signature
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Detected Remcos RAT
Early bird code injection technique detected
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Initial sample is a PE file and has a suspicious name
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Powershell drops PE file
Queues an APC in another process (thread injection)
Sigma detected: Remcos
Sigma detected: Suspicious Double Extension File Execution
Sigma detected: Suspicious Double Extension Files
Sigma detected: Suspicious Script Execution From Temp Folder
Suricata IDS alerts for network traffic
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)
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1762653 Sample: SI1744 DRAFT.pdf.exe Startdate: 22/08/2025 Architecture: WINDOWS Score: 100 47 geoplugin.net 2->47 49 drive.usercontent.google.com 2->49 51 drive.google.com 2->51 69 Suricata IDS alerts for network traffic 2->69 71 Found malware configuration 2->71 73 Antivirus detection for dropped file 2->73 75 13 other signatures 2->75 9 SI1744 DRAFT.pdf.exe 23 2->9         started        12 svchost.exe 1 1 2->12         started        signatures3 process4 dnsIp5 41 C:\Users\user\AppData\...41oncarbonated.Ice, ASCII 9->41 dropped 15 powershell.exe 30 9->15         started        59 127.0.0.1 unknown unknown 12->59 file6 process7 file8 43 C:\Users\user\...\SI1744 DRAFT.pdf.exe, PE32 15->43 dropped 45 C:\...\SI1744 DRAFT.pdf.exe:Zone.Identifier, ASCII 15->45 dropped 61 Early bird code injection technique detected 15->61 63 Writes to foreign memory regions 15->63 65 Found suspicious powershell code related to unpacking or dynamic code loading 15->65 67 3 other signatures 15->67 19 msiexec.exe 4 17 15->19         started        24 conhost.exe 15->24         started        signatures9 process10 dnsIp11 53 160.25.72.95, 2404, 49725, 49726 GIGAINFRASoftbankBBCorpJP unknown 19->53 55 drive.usercontent.google.com 142.250.80.65, 443, 49724 GOOGLEUS United States 19->55 57 2 other IPs or domains 19->57 35 C:\Users\user\AppData\Local\Temp\TH18A8.tmp, MS-DOS 19->35 dropped 37 C:\Users\user\AppData\Local\Temp\TH1888.tmp, MS-DOS 19->37 dropped 39 C:\Users\user\AppData\Local\Temp\TH1868.tmp, PE32 19->39 dropped 77 Detected Remcos RAT 19->77 79 Writes to foreign memory regions 19->79 81 Found hidden mapped module (file has been removed from disk) 19->81 83 Maps a DLL or memory area into another process 19->83 26 RmClient.exe 14 19->26         started        29 RmClient.exe 1 19->29         started        31 RmClient.exe 1 19->31         started        33 RmClient.exe 19->33         started        file12 signatures13 process14 signatures15 85 Tries to steal Mail credentials (via file registry) 26->85 87 Tries to harvest and steal browser information (history, passwords, etc) 26->87 89 Tries to steal Instant Messenger accounts or passwords 29->89 91 Tries to steal Mail credentials (via file / registry access) 29->91
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ddef88d18fb420a85c2bf1b503e9dad76dc482577ff6dc8d25ca72fb1b2b2528
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/2d1c5731a178183efee75d2d797a5c5b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ddef88d18fb420a85c2bf1b503e9dad76dc482577ff6dc8d25ca72fb1b2b2528/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2025-08-22 02:54:54 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3xxyrumpwqqkqxbl6g2qh2o225w4jasxp73nzdjfzjzpwgzleuua._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:guloader family:remcos defense_evasion discovery downloader execution rat
Link:
https://tria.ge/reports/250822-gedxlacl2x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Blocklisted process makes network request
Legitimate hosting services abused for malware hosting/C2
Modifies trusted root certificate store through registry
Guloader family
Guloader,Cloudeye
Remcos
Remcos family
Malware Config
C2 Extraction:
160.25.72.95:2404
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/40604438-4306-4f8b-9b12-256fc065bfed
Unpacked files
SH256 hash:
ddef88d18fb420a85c2bf1b503e9dad76dc482577ff6dc8d25ca72fb1b2b2528
MD5 hash:
2d1c5731a178183efee75d2d797a5c5b
SHA1 hash:
577813b24681e6c85b85c8f66759f2a9aff5ddf7
Link:
https://www.unpac.me/results/03c86967-4c07-4ac0-9e58-0155e4a1f06e/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ddef88d18fb4/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/ddef88d18fb420a85c2bf1b503e9dad76dc482577ff6dc8d25ca72fb1b2b2528

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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.

Malspam

RemcosRAT

Executable exe ddef88d18fb420a85c2bf1b503e9dad76dc482577ff6dc8d25ca72fb1b2b2528

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/22870/

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
ADVAPI32.dll::SetFileSecurityW
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

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