MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b6ff162d06ef0d1df78ada89bc99374b76362c5693b625ef9d46c9ee50e5309. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1b6ff162d06ef0d1df78ada89bc99374b76362c5693b625ef9d46c9ee50e5309
SHA3-384 hash: f1814af702d64b5c5f07c5874d69ecf97bf5d96cf7d3ecaf883bbda98517be548868914b142624af6f890c289c203f29
SHA1 hash: a584891d70ea5cc84d7d2934f3ea70af83b83980
MD5 hash: b4c024b530685b4d6624a05969d9997b
humanhash: leopard-blossom-butter-jupiter
File name:b4c024b530685b4d6624a05969d9997b.exe
Download: download sample
Signature Neshta
Create hunting rule
File size:335'650 bytes
First seen:2021-11-03 19:24:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9f4693fc0c511135129493f2161d1e86 (250 x Neshta, 15 x Formbook, 14 x AgentTesla)
ssdeep 6144:k9aWnHeRvkKco51lEEG8F/K4Wn8wEH6LbS3otQi6u4tV6BlL/co:QGvk0li8F/KlnbO4tB6uG6eo
TLSH T13A641214B2F0C4B7C0151FB8DD29C7B6D5737D2279204A8BBB745EAEEC397C29A08646
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe Neshta

Intelligence

File Origin
# of uploads :
1
# of downloads :
141
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b4c024b530685b4d6624a05969d9997b.exe
Verdict:
Malicious activity
Analysis date:
2021-11-03 19:54:03 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/909e32bf-007e-4c9e-b9b4-b786de279502

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/202011/
Detection(s):
Win.Trojan.Neshuta-1
Create hunting rule

PUA.Win.Packer.Pequake-4
Create hunting rule

Win.Virus.Neshta-7101689-0
Create hunting rule

Win.Trojan.Jadtre-5
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a file in the Windows directory
Creating a process from a recently created file
Modifying an executable file
Creating a file
Creating a window
Enabling autorun with the shell\open\command registry branches
Infecting executable files
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
neshta overlay packed
Link:
https://www.filescan.io/uploads/6182e2121c62c3566081843e/reports/c25e4e81-a5dc-4fdc-85f0-170eb689ed36/overview
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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d11b8968-72f4-44c7-bdd9-ab8de0dc162d
Result
Threat name:
FormBook Neshta
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/882655
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Drops executable to a common third party application directory
Drops PE files with a suspicious file extension
Found malware configuration
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)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected Neshta
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 515085 Sample: KC5w2SJOpt.exe Startdate: 03/11/2021 Architecture: WINDOWS Score: 100 44 www.eskrimwalls.com 2->44 46 eskrimwalls.com 2->46 58 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 9 other signatures 2->64 12 KC5w2SJOpt.exe 4 2->12         started        signatures3 process4 file5 36 C:\Windows\svchost.com, PE32 12->36 dropped 38 C:\Users\user\AppData\Local\...\setup.exe, PE32 12->38 dropped 40 C:\Users\user\AppData\...\KC5w2SJOpt.exe, PE32 12->40 dropped 42 87 other malicious files 12->42 dropped 84 Creates an undocumented autostart registry key 12->84 86 Drops PE files with a suspicious file extension 12->86 88 Drops executable to a common third party application directory 12->88 90 Infects executable files (exe, dll, sys, html) 12->90 16 KC5w2SJOpt.exe 17 12->16         started        signatures6 process7 file8 34 C:\Users\user\AppData\Local\...\cxtlhbh.dll, PE32 16->34 dropped 54 Tries to detect virtualization through RDTSC time measurements 16->54 56 Injects a PE file into a foreign processes 16->56 20 KC5w2SJOpt.exe 16->20         started        signatures9 process10 signatures11 66 Modifies the context of a thread in another process (thread injection) 20->66 68 Maps a DLL or memory area into another process 20->68 70 Sample uses process hollowing technique 20->70 72 Queues an APC in another process (thread injection) 20->72 23 explorer.exe 20->23 injected process12 dnsIp13 48 www.qhatu-peru.com 198.54.117.244, 49806, 80 NAMECHEAP-NETUS United States 23->48 50 9tv-cname.com 23.225.30.43, 49798, 80 CNSERVERSUS United States 23->50 52 8 other IPs or domains 23->52 74 System process connects to network (likely due to code injection or exploit) 23->74 76 Performs DNS queries to domains with low reputation 23->76 27 msiexec.exe 23->27         started        signatures14 process15 signatures16 78 Self deletion via cmd delete 27->78 80 Modifies the context of a thread in another process (thread injection) 27->80 82 Maps a DLL or memory area into another process 27->82 30 cmd.exe 1 27->30         started        process17 process18 32 conhost.exe 30->32         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1b6ff162d06ef0d1df78ada89bc99374b76362c5693b625ef9d46c9ee50e5309/
Threat name:
Win32.Virus.Neshta
Create hunting rule
Status:
Malicious
First seen:
2021-11-03 11:55:00 UTC
AV detection:
27 of 27 (100.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dnx7cywqn3yndx3yvwujxsmtos3wgywfne5wexxz2rwj5ziokmeq._file
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:neshta family:xloader campaign:qw2c loader persistence rat spyware stealer
Link:
https://tria.ge/reports/211103-x4yw3abgbm/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
NSIS installer
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of SetThreadContext
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Xloader Payload
Modifies system executable filetype association
Neshta
Xloader
Malware Config
C2 Extraction:
http://www.qhatu-peru.com/qw2c/
Unpacked files
SH256 hash:
1b6ff162d06ef0d1df78ada89bc99374b76362c5693b625ef9d46c9ee50e5309
MD5 hash:
b4c024b530685b4d6624a05969d9997b
SHA1 hash:
a584891d70ea5cc84d7d2934f3ea70af83b83980
Link:
https://www.unpac.me/results/18dd743b-31be-4466-845b-55eef277161a/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/1b6ff162d06e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.59
Link:
https://yomi.yoroi.company/submissions/1b6ff162d06ef0d1df78ada89bc99374b76362c5693b625ef9d46c9ee50e5309

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:MALWARE_Win_Neshta
Create hunting rule
Author:ditekSHen
Description:Detects Neshta
Rule name:MAL_Neshta_Generic
Create hunting rule
Author:Florian Roth
Description:Detects Neshta malware
Reference:Internal Research
Rule name:MAL_Neshta_Generic_RID2DC9
Create hunting rule
Author:Florian Roth
Description:Detects Neshta malware
Reference:Internal Research

File information

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

Web download

Neshta

Executable exe 1b6ff162d06ef0d1df78ada89bc99374b76362c5693b625ef9d46c9ee50e5309

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/202011/
  
URLhaus
https://urlhaus.abuse.ch/url/1722926/
  
Delivery method
Distributed via web download

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