MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 5b3f2d209915f215a7a52f93f9103acdbb0c3164a43076656763e3384a50bdce. 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
Neshta
Vendor detections: 12
| SHA256 hash: | 5b3f2d209915f215a7a52f93f9103acdbb0c3164a43076656763e3384a50bdce |
|---|---|
| SHA3-384 hash: | f4683ccdd93145269a2bf4449b6a8640df0af4a57053a51bfc9209608455bfa133b8af24acc2bcb35affdffdfe818128 |
| SHA1 hash: | ba660d35e0e7f9e0ab84cdb6d869463c5bc77c19 |
| MD5 hash: | f201c71f9389d996a80ce65a17353cbb |
| humanhash: | alanine-nuts-ink-queen |
| File name: | ExpServer.exe |
| Download: | download sample |
| Signature | Neshta |
| File size: | 188'928 bytes |
| First seen: | 2022-02-23 12:29:45 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 9f4693fc0c511135129493f2161d1e86 (253 x Neshta, 15 x Formbook, 14 x AgentTesla) |
| ssdeep | 1536:JxqjQ+P04wsmJCH/by0IVSsQp/rpv4oUx1DOOO39e0CIJtZo:sr85Czy0I7QBrpNUxVNotZo |
| Threatray | 254 similar samples on MalwareBazaar |
| TLSH | T1B704AFB6B8D38431D0266779EC2593EAE12F39103F31D1BE764D2DCB9D392C69938846 |
| Reporter |  r3dbU7z |
| Tags: | exe Neshta |
Intelligence
File Origin
# of uploads :
1
# of downloads :
211
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Neshta
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file in the %temp% subdirectories
Сreating synchronization primitives
Creating a process from a recently created file
Creating a file in the Windows directory
Modifying an executable file
Creating a file in the Program Files subdirectories
Creating a service
Creating a file
Enabling autorun with the shell\open\command registry branches
Infecting executable files
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
greyware neshta overlay shell32.dll
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Neshta
Verdict:
Malicious
Result
Threat name:
Neshta
Detection:
malicious
Classification:
spre.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to detect sleep reduction / modifications
Creates an undocumented autostart registry key
Drops executable to a common third party application directory
Drops PE files with a suspicious file extension
Found API chain indicative of debugger detection
Found evasive API chain (may stop execution after checking mutex)
Infects executable files (exe, dll, sys, html)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Yara detected Neshta
Behaviour
Behavior Graph:
Threat name:
Win32.Virus.Neshta
Status:
Malicious
First seen:
2022-02-23 12:30:14 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
28 of 28 (100.00%)
Threat level:
5/5
Verdict:
malicious
Similar samples:
+ 244 additional samples on MalwareBazaar
Result
Malware family:
neshta
Score:
10/10
Tags:
family:neshta persistence spyware stealer
Behaviour
Modifies registry class
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Modifies system executable filetype association
Neshta
Unpacked files
SH256 hash:
5b3f2d209915f215a7a52f93f9103acdbb0c3164a43076656763e3384a50bdce
MD5 hash:
f201c71f9389d996a80ce65a17353cbb
SHA1 hash:
ba660d35e0e7f9e0ab84cdb6d869463c5bc77c19
Detections:
win_neshta_auto
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.44
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: | INDICATOR_SUSPICIOUS_EXE_ClearMyTracksByProcess |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables calling ClearMyTracksByProcess |
| Rule name: | MALWARE_Win_Neshta |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Neshta |
| Rule name: | MAL_Neshta_Generic |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Neshta malware |
| Reference: | Internal Research |
| Rule name: | MAL_Neshta_Generic_RID2DC9 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Neshta malware |
| Reference: | Internal Research |
| Rule name: | win_neshta_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | autogenerated rule brought to you by yara-signator |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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