MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5c6dabfd88cc55ca9697acf98987e8d267670be9f970ce4a445c90a450c32051. 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: 17


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

SHA256 hash: 5c6dabfd88cc55ca9697acf98987e8d267670be9f970ce4a445c90a450c32051
SHA3-384 hash: 10763363fbc42de6c8678b0b9f33a99d2aeea0d98051bbd604f5b84d8152adac2075fe489af0083cdd1630206cc82489
SHA1 hash: c31c6e83bf724c22b0b0697a732c2c10d1e72a40
MD5 hash: b3956c4394a8b5193528ee5421927282
humanhash: romeo-hydrogen-violet-solar
File name:scan115725pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:813'638 bytes
First seen:2025-10-29 07:07:11 UTC
Last seen:2025-11-03 10:27:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 0293eec0b5432ad092f24065016203b2 (21 x GuLoader, 9 x RemcosRAT, 6 x Formbook)
ssdeep 12288:sIPLH4AmAXNYKB8IyNLXKd6Lcz+ZkSaONQLv9eHgNjX:lLH4AmAvUOd0cz+ZkUNQzIHgNjX
TLSH T1D2052342FDA1D0D3D4E27575FD76E011BBE25AFD0A61878FB71C2A0ABC362404AEB542
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
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
108
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
scan115725pdf.exe
Verdict:
Malicious activity
Analysis date:
2025-10-29 07:11:24 UTC
Tags:
remcos rat auto-reg remote
Link:
https://app.any.run/tasks/1ccfffd7-6843-4d0a-b362-8f27b167d522

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/34578/
Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6901bd42706befaf4ec9e6be
Tags:
injection obfusc
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Searching for the window
Creating a file in the %AppData% subdirectories
Creating a file
Delayed reading of the file
Searching for many windows
Unauthorized injection to a recently created process
Restart of the analyzed sample
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole installer installer installer-heuristic microsoft_visual_cc nsis overlay unsafe
Link:
https://www.filescan.io/uploads/6901bd6cf1fa8cbc03113620/reports/286a2307-84cc-460e-a8cd-e6383b0fd0bd/overview
Verdict:
Malicious
Labled as:
Injector.OICY
Link:
https://www.hybrid-analysis.com/sample/5c6dabfd88cc55ca9697acf98987e8d267670be9f970ce4a445c90a450c32051
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-28T21:23:00Z UTC
Last seen:
2025-10-31T04:58:00Z UTC
Hits:
~1000
Detections:
Trojan.NSIS.Makoob.sbb Trojan.NSIS.Makoob.sba UDS:DangerousObject.Multi.Generic Trojan-Downloader.Win32.Minix.sb PDM:Trojan.Win32.Generic HEUR:Trojan.Win32.Makoob.gen Trojan.NSIS.Makoob.sbd
Link:
https://opentip.kaspersky.com/5c6dabfd88cc55ca9697acf98987e8d267670be9f970ce4a445c90a450c32051/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/5e96984e-d80a-4244-9e94-017480108f65
Result
Threat name:
Remcos, GuLoader
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1803727
Signature
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Creates autostart registry keys with suspicious names
Detected Remcos RAT
Found hidden mapped module (file has been removed from disk)
Found malware configuration
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)
Writes to foreign memory regions
Yara detected GuLoader
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1803727 Sample: scan115725pdf.exe Startdate: 29/10/2025 Architecture: WINDOWS Score: 100 63 drive.usercontent.google.com 2->63 65 drive.google.com 2->65 67 bg.microsoft.map.fastly.net 2->67 81 Suricata IDS alerts for network traffic 2->81 83 Found malware configuration 2->83 85 Antivirus detection for dropped file 2->85 87 7 other signatures 2->87 10 scan115725pdf.exe 3 45 2->10         started        14 remcos.exe 38 2->14         started        16 remcos.exe 13 2->16         started        18 remcos.exe 2->18         started        signatures3 process4 file5 57 C:\Users\user\AppData\Local\...\System.dll, PE32 10->57 dropped 99 Tries to detect virtualization through RDTSC time measurements 10->99 101 Switches to a custom stack to bypass stack traces 10->101 20 scan115725pdf.exe 2 10 10->20         started        59 C:\Users\user\AppData\Local\...\System.dll, PE32 14->59 dropped 25 remcos.exe 14->25         started        signatures6 process7 dnsIp8 69 drive.usercontent.google.com 142.250.73.129, 443, 49697, 49700 GOOGLEUS United States 20->69 71 drive.google.com 142.250.73.78, 443, 49690, 49699 GOOGLEUS United States 20->71 53 C:\ProgramData\Remcos\remcos.exe, PE32 20->53 dropped 55 C:\ProgramData\...\remcos.exe:Zone.Identifier, ASCII 20->55 dropped 95 Detected Remcos RAT 20->95 97 Creates autostart registry keys with suspicious names 20->97 27 remcos.exe 38 20->27         started        file9 signatures10 process11 file12 61 C:\Users\user\AppData\Local\...\System.dll, PE32 27->61 dropped 103 Multi AV Scanner detection for dropped file 27->103 105 Found hidden mapped module (file has been removed from disk) 27->105 107 Tries to detect virtualization through RDTSC time measurements 27->107 109 Switches to a custom stack to bypass stack traces 27->109 31 remcos.exe 4 13 27->31         started        signatures13 process14 dnsIp15 73 196.251.115.90, 2404, 49701, 49702 xneeloZA Seychelles 31->73 45 C:\Users\user\AppData\Local\Temp\THB87B.tmp, MS-DOS 31->45 dropped 47 C:\Users\user\AppData\Local\Temp\THB80D.tmp, MS-DOS 31->47 dropped 49 C:\Users\user\AppData\Local\Temp\THB7DD.tmp, PE32 31->49 dropped 51 3 other malicious files 31->51 dropped 75 Detected Remcos RAT 31->75 77 Writes to foreign memory regions 31->77 79 Maps a DLL or memory area into another process 31->79 36 RmClient.exe 31->36         started        39 RmClient.exe 31->39         started        41 RmClient.exe 31->41         started        43 4 other processes 31->43 file16 signatures17 process18 signatures19 89 Tries to steal Instant Messenger accounts or passwords 36->89 91 Tries to steal Mail credentials (via file / registry access) 36->91 93 Tries to harvest and steal browser information (history, passwords, etc) 41->93
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/5c6dabfd88cc55ca9697acf98987e8d267670be9f970ce4a445c90a450c32051
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/b3956c4394a8b5193528ee5421927282
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5c6dabfd88cc55ca9697acf98987e8d267670be9f970ce4a445c90a450c32051/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/5c6dabfd88cc55ca9697acf98987e8d267670be9f970ce4a445c90a450c32051
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2025-10-29 03:44:46 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lrw2x7mizrk4vfuxvt4ytb7i2jtwoc7j7fym4sselsikiugdebiq._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:guloader family:remcos botnet:remotehost collection discovery downloader installer persistence rat
Link:
https://tria.ge/reports/251029-hycpbawqcs/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
NSIS installer
Enumerates physical storage devices
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
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Guloader family
Guloader,Cloudeye
Remcos
Remcos family
Malware Config
C2 Extraction:
196.251.115.90:2404
Verdict:
Malicious
Tags:
loader guloader
YARA:
NSIS_GuLoader_July_2024
Link:
https://app.threat.zone/submission/3a606a64-acd4-41c9-b5cb-57c16c2f036e
Unpacked files
SH256 hash:
5c6dabfd88cc55ca9697acf98987e8d267670be9f970ce4a445c90a450c32051
MD5 hash:
b3956c4394a8b5193528ee5421927282
SHA1 hash:
c31c6e83bf724c22b0b0697a732c2c10d1e72a40
Link:
https://www.unpac.me/results/4e135cfa-9bf5-4c31-a142-b41049c194e6/
SH256 hash:
7fb0f8d452fefaac789986b933df050f3d3e4feb8a8d9944ada995f572dcdca1
MD5 hash:
dd87a973e01c5d9f8e0fcc81a0af7c7a
SHA1 hash:
c9206ced48d1e5bc648b1d0f54cccc18bf643a14
Link:
https://www.unpac.me/results/4e135cfa-9bf5-4c31-a142-b41049c194e6/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5c6dabfd88cc/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.79
Link:
https://yomi.yoroi.company/submissions/5c6dabfd88cc55ca9697acf98987e8d267670be9f970ce4a445c90a450c32051

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:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

RemcosRAT

zip 349d1de00dadbb553c01f4e55dc8330f5b06bf0318af83abe964d2a4f647cde0

RemcosRAT

Executable exe 5c6dabfd88cc55ca9697acf98987e8d267670be9f970ce4a445c90a450c32051

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/34578/
  
Dropped by
SHA256 349d1de00dadbb553c01f4e55dc8330f5b06bf0318af83abe964d2a4f647cde0
  
Dropped by
MD5 cffe639d371309cb04f79b6d20f1282d

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