MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cbc366eb88520c2f1a9c0db8a7f5318b4f8a9a0993352a31d877c63e8abc8d0c. 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



njrat


Vendor detections: 12


Intelligence 12 IOCs YARA 4 File information Comments

SHA256 hash: cbc366eb88520c2f1a9c0db8a7f5318b4f8a9a0993352a31d877c63e8abc8d0c
SHA3-384 hash: 5c658b69c52b387f724abdcff7f031af4af2b26bee167c4796eba77d7ccf888d9ad9a81fe0ccedbe01fdf65053f2dbc8
SHA1 hash: c9ff4f4f34786205562ce6a51d0b7ac8faf1f728
MD5 hash: e12ebf5407727ed0b21f62c8d70c69b7
humanhash: london-tennessee-venus-timing
File name:SecuriteInfo.com.FileRepMalware.64295876
Download: download sample
Signature njrat
File size:930'992 bytes
First seen:2025-09-11 15:21:53 UTC
Last seen:2025-09-11 16:17:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 4ea4df5d94204fc550be1874e1b77ea7 (241 x GuLoader, 29 x RemcosRAT, 17 x VIPKeylogger)
ssdeep 24576:BphLc4ct2MyCpmryL6K0V+mzJg9yAIOLO:9LcRt2Md/LJ0V+IWULOK
TLSH T13B15223472C4F062C705033E5A9831F26AAA9DD29F338A53DE1ABF65B7321F0587D5A4
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 SecuriteInfoCom
Tags:exe NjRAT signed

Code Signing Certificate

Organisation:Fladhovedet
Issuer:Fladhovedet
Algorithm:sha256WithRSAEncryption
Valid from:2025-08-08T02:39:59Z
Valid to:2026-08-08T02:39:59Z
Serial number: 680df400b95b22515eff62b5974fa0cc4ae2909d
Thumbprint Algorithm:SHA256
Thumbprint: c8bfa1b506e43693c63212d7a072e228faa3134e006e2ccfae44d6c593790514
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
2
# of downloads :
264
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
guloader
ID:
1
File name:
SecuriteInfo.com.FileRepMalware.64295876
Verdict:
Malicious activity
Analysis date:
2025-09-11 15:27:18 UTC
Tags:
guloader darkcloud phishing ftp

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file
Searching for the window
Delayed reading of the file
Sending a custom TCP request
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
adaptive-context installer microsoft_visual_cc obfuscated overlay packed signed
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-10T15:58:00Z UTC
Last seen:
2025-09-10T15:58:00Z UTC
Hits:
~100
Detections:
Trojan.Win32.Guloader.sb Trojan.NSIS.Makoob.sbb Trojan.NSIS.Makoob.sba Packed.NSIS.Krynis.sb HEUR:Trojan.Win32.Makoob.gen
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Threat name:
Win32.Trojan.Makoob
Status:
Malicious
First seen:
2025-09-11 15:24:49 UTC
File Type:
PE (Exe)
Extracted files:
11
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Result
Malware family:
guloader
Score:
  10/10
Tags:
family:darkcloud family:guloader discovery downloader stealer
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Loads dropped DLL
DarkCloud
Darkcloud family
Guloader family
Guloader,Cloudeye
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
cbc366eb88520c2f1a9c0db8a7f5318b4f8a9a0993352a31d877c63e8abc8d0c
MD5 hash:
e12ebf5407727ed0b21f62c8d70c69b7
SHA1 hash:
c9ff4f4f34786205562ce6a51d0b7ac8faf1f728
SH256 hash:
bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
MD5 hash:
17ed1c86bd67e78ade4712be48a7d2bd
SHA1 hash:
1cc9fe86d6d6030b4dae45ecddce5907991c01a0
SH256 hash:
c13104552b8b553159f50f6e2ca45114493397a6fa4bf2cbb960c4a2bbd349ab
MD5 hash:
42b064366f780c1f298fa3cb3aeae260
SHA1 hash:
5b0349db73c43f35227b252b9aa6555f5ede9015
Please note that we are no longer able to provide a coverage score for Virus Total.

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
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
Author:Obscurity Labs LLC
Description:Detects NSIS installers by .ndata section + NSIS header string
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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.

Web download

njrat

Executable exe cbc366eb88520c2f1a9c0db8a7f5318b4f8a9a0993352a31d877c63e8abc8d0c

(this sample)

  
Delivery method
Distributed via web download

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