MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4e4e32f6259b82e6b932ab81172c22560ec2ac46e85543d4851637a63eaace3e. 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
Threat unknown
Vendor detections: 11
| SHA256 hash: | 4e4e32f6259b82e6b932ab81172c22560ec2ac46e85543d4851637a63eaace3e |
|---|---|
| SHA3-384 hash: | 1703c3c321ca554f3b667232602cfadecbc9ced520924bcbd28fedcd70532dc100e2d73fb572090d4beba6fb61336d4c |
| SHA1 hash: | 02975ba8659e0843913111fcf9cce8c47bf728a5 |
| MD5 hash: | 5a1bb5d7f55f40596c1335a7728277c0 |
| humanhash: | california-video-aspen-iowa |
| File name: | Vymxn_Zfbgctbp.dll |
| Download: | download sample |
| File size: | 752'640 bytes |
| First seen: | 2026-08-07 08:24:39 UTC |
| Last seen: | Never |
| File type: |  dll |
| MIME type: | application/x-dosexec |
| imphash | dae02f32a21e03ce65412f6e56942daa (123 x YellowCockatoo, 62 x CobaltStrike, 44 x JanelaRAT) |
| ssdeep | 12288:b70cbVq5a5HDq2jimC/LwRe62NtljwBj7VSuzlXxC:30cZMKjnOmQsRx2N/MF7cWXE |
| TLSH | T1CEF48C3283E95FD5C35D0B37B461C048AF35A5388DABFB7235226278605F34AB66ED18 |
| TrID | 88.5% (.DLL) Generic .NET DLL/Assembly (236632/4/32) 2.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 2.4% (.EXE) Win64 Executable (generic) (6522/11/2) 1.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 1.6% (.EXE) Win32 Executable (generic) (4504/4/1) |
| Magika | pebin |
| Reporter |  netresec |
| Tags: | dll |
netresec
Based on some of the non-obfuscated strings in this DLL, FortiGuard Labs believes this sample is zgRAT.The DLL was extracted from PCAP on Triage: https://tria.ge/220630-lrqjdahhcq/behavioral2
Intelligence
File Origin
# of uploads :
1
# of downloads :
148
Origin country :
SEVendor Threat Intelligence
Malware configuration found for:
EAZfuscator
NETReactor
PostExploitTool
Details
Detection:
n/a
Detection(s):
Result
Verdict:
Clean
Maliciousness:
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
base64 net_reactor obfuscated obfuscated packed packed reconnaissance
Verdict:
Malicious
Labled as:
Trojan/MSIL.Injector
Verdict:
Malicious
File Type:
executable.pe.32.dll
First seen:
2022-06-30T08:48:00Z UTC
Last seen:
2022-09-02T21:08:00Z UTC
Hits:
~10
Verdict:
Unknown
Score:
100%
Verdict:
Malware
File Type:
PE
Verdict:
zgRAT
YARA:
16 match(es)
Tags:
.Net .Net Obfuscator .Net Reactor Executable Fody/Costura Packer Managed .NET PDB Path PE (Portable Executable) PE File Layout RAT SOS: 0.00 SOS: 0.16 SOS: 0.45 Win 32 Exe x86 zgRAT
Threat name:
ByteCode-MSIL.Packed.Generic
Status:
Suspicious
First seen:
2022-06-30 11:47:38 UTC
AV detection:
20 of 23 (86.96%)
Threat level:
1/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
zgRAT
Unpacked files
SH256 hash:
4e4e32f6259b82e6b932ab81172c22560ec2ac46e85543d4851637a63eaace3e
MD5 hash:
5a1bb5d7f55f40596c1335a7728277c0
SHA1 hash:
02975ba8659e0843913111fcf9cce8c47bf728a5
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | Costura_Protobuf |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies Costura and Protobuf in .NET assemblies, respectively for storing resources and (de)serialization. Seen together might indicate a suspect binary. |
| Rule name: | CP_Script_Inject_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | Detects attempts to inject code into another process across PE, ELF, Mach-O binaries |
| Rule name: | DebuggerCheck__RemoteAPI |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DotNet_Reactor |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies .NET Reactor, which offers .NET code protection such as obfuscation, encryption and so on. |
| Rule name: | extracted_at_0x44b |
|---|---|
| Author: | cb |
| Description: | sample - file extracted_at_0x44b.exe |
| Reference: | Internal Research |
| Rule name: | MD5_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for MD5 constants |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | PureCrypter |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies PureCrypter, .NET loader and obfuscator. |
| Reference: | https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter |
| Rule name: | RIPEMD160_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for RIPEMD-160 constants |
| Rule name: | SHA1_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA1 constants |
| Rule name: | Sus_CMD_Powershell_Usage |
|---|---|
| Author: | XiAnzheng |
| Description: | May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP) |
| Rule name: | VECT_Ransomware |
|---|---|
| Author: | Mustafa Bakhit |
| Description: | Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
dll 4e4e32f6259b82e6b932ab81172c22560ec2ac46e85543d4851637a63eaace3e
(this sample)
Dropped by
SmokeLoader
Delivery method
Distributed via web download
Comments
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You need to login to in order to write a comment. Login with your abuse.ch account.The DLL can also be extracted (and decompressed) from this other PCAP on Triage:
https://tria.ge/220630-jr2wasbbe8/behavioral1