MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 61bbac79c7d461b83943fdc0320d01430deb4b81cc294e2f07ae45e55ab52fa8. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 61bbac79c7d461b83943fdc0320d01430deb4b81cc294e2f07ae45e55ab52fa8
SHA3-384 hash: 72d61235842b016663988eaea4cfc047410b12d695b3eb0813711aa31b1b02c745ac55538e3f8021434dd8ab72382b08
SHA1 hash: 673dad07d254f893c5d4b622eb2cf520fcae2bdb
MD5 hash: 55c286cbdb120f501693cca8d64da62c
humanhash: sierra-edward-oscar-idaho
File name:6109472.exe
Download: download sample
Signature Neshta
Create hunting rule
File size:12'800 bytes
First seen:2022-10-04 05:49:23 UTC
Last seen:2022-10-11 07:28:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 192:7iNdDP6S0Q7kVLbR//RfUoayjvfHLkJsNVd9kLzXhi:7adPGLbR//Ooa6frIXh
Threatray 1'180 similar samples on MalwareBazaar
TLSH T15F420A55B281C763EE9841B06C46D2202EFA7EACDC93D70FA4E9B26FDC713610953518
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon e4dcd8c4d4d4c4d4 (95 x AgentTesla, 51 x Formbook, 12 x RemcosRAT)
Reporter lowmal3
Tags:exe Neshta

Intelligence

File Origin
# of uploads :
5
# of downloads :
256
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/316323/
Detection(s):
SecuriteInfo.com.Win32.DropperX-gen.16893.18897.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Sending an HTTP GET request
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
Creating a file in the %temp% subdirectories
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Gathering data
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/3ff1b2b0-614f-4a2e-8299-3fe7f42d2219
Result
Threat name:
AgentTesla, Neshta
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1082969
Signature
.NET source code contains potential unpacker
Creates an undocumented autostart registry key
Drops executable to a common third party application directory
Drops PE files with a suspicious file extension
Encrypted powershell cmdline option found
Infects executable files (exe, dll, sys, html)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Yara detected Neshta
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 715526 Sample: 6109472.exe Startdate: 04/10/2022 Architecture: WINDOWS Score: 100 37 Multi AV Scanner detection for domain / URL 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 6 other signatures 2->43 7 6109472.exe 16 7 2->7         started        process3 dnsIp4 33 192.227.183.152, 49708, 80 AS-COLOCROSSINGUS United States 7->33 21 C:\Users\user\AppData\Roaming\...behaviorgraphchltdc.exe, PE32 7->21 dropped 23 C:\Users\user\AppData\...\6109472.exe.log, ASCII 7->23 dropped 45 Encrypted powershell cmdline option found 7->45 47 Writes to foreign memory regions 7->47 49 Injects a PE file into a foreign processes 7->49 12 RegAsm.exe 19 7->12         started        17 powershell.exe 16 7->17         started        file5 signatures6 process7 dnsIp8 35 192.168.2.1 unknown unknown 12->35 25 C:\Windows\svchost.com, PE32 12->25 dropped 27 C:\Users\user\AppData\Local\...\DismHost.exe, PE32 12->27 dropped 29 C:\Users\user\AppData\Local\...\setup.exe, PE32 12->29 dropped 31 117 other malicious files 12->31 dropped 51 Creates an undocumented autostart registry key 12->51 53 Drops PE files with a suspicious file extension 12->53 55 Drops executable to a common third party application directory 12->55 57 Infects executable files (exe, dll, sys, html) 12->57 19 conhost.exe 17->19         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/61bbac79c7d461b83943fdc0320d01430deb4b81cc294e2f07ae45e55ab52fa8/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-10-04 05:50:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
25 of 41 (60.98%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mg52y6oh2rq3qokd7xadedibimg6ws4bzquu4lyhvzc6kwvvf6ua._file
Verdict:
malicious
Similar samples:
121a361c245e43e5af7e9f0279bb9c908dc19f4c492551e7ef816efab6521c57
Neshta
1fa40eae5c0b4dcf0d26d10c879ad5e466c06c3fa85f70dd17aad03d5f5b0f6a
Neshta
56fd163108e6e2a9e2f7cfd15898f61d5b8d435ed839d1e29b70c040998eedcf
Neshta
5d0c5951ccf3f1fb05f4cb1ee1ef45a9b1161e392831e88345a298b35b278c66
Neshta
6602f1c5f952685a673f0b6e108ebdc960fe73c0451fc3a3a05f3323c8c23a5d
Neshta
7ef24f6499dd9fc7809783a98febc44c2dc25a3f74d02c9bf8ddbae0d3b781c6
Neshta
9f3b0574ee8ea34114c6de2ed4f351552400569e42d4032a2ec5dcff3107af1c
Neshta
d57321805b57d9a004d652b7d8b00d9045d6940800653374e2a47c7dad2e9196
Neshta
df4e59b22b91c69afdd19354ac0a21393799a3b9b0c3dc8aef521b2a034611b4
Neshta
+ 1'170 additional samples on MalwareBazaar
Result
Malware family:
neshta
Create hunting rule
Score:
  10/10
Tags:
family:neshta persistence spyware stealer
Link:
https://tria.ge/reports/221004-gjlg8seefp/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Reads user/profile data of web browsers
Detect Neshta payload
Modifies system executable filetype association
Neshta
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/79deb1b7-de63-4e77-b9b7-78c5f53770f0
Unpacked files
SH256 hash:
61bbac79c7d461b83943fdc0320d01430deb4b81cc294e2f07ae45e55ab52fa8
MD5 hash:
55c286cbdb120f501693cca8d64da62c
SHA1 hash:
673dad07d254f893c5d4b622eb2cf520fcae2bdb
Link:
https://www.unpac.me/results/9af12ede-7f7b-4c79-b603-85ca67cc95ae/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/61bbac79c7d4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/61bbac79c7d461b83943fdc0320d01430deb4b81cc294e2f07ae45e55ab52fa8

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Neshta

Executable exe 61bbac79c7d461b83943fdc0320d01430deb4b81cc294e2f07ae45e55ab52fa8

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/316323/

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