MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8c4b8096fd12078acf5f08230e561381fe8d0859a5949825ab411f6312f5da5. 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


NetWalker


Vendor detections: 3


Intelligence 3 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a8c4b8096fd12078acf5f08230e561381fe8d0859a5949825ab411f6312f5da5
SHA3-384 hash: 88968ba71b15c73eebec1a11c5dabdae8263b474d5a2afcfa458da66aee090a28cda3244d513af9c345df4cb4b1d3fea
SHA1 hash: b4e254dd5d6243bc7a006541d9f5db0aa10dbe72
MD5 hash: bb9d6ca0aa3f5fbc9cd50b7d6388f29c
humanhash: eight-oregon-oxygen-violet
File name:a8c4b8096fd12078acf5f08230e561381fe8d0859a5949825ab411f6312f5da5
Download: download sample
Signature NetWalker
Create hunting rule
File size:83'968 bytes
First seen:2020-06-01 14:30:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e82dd51b077167be63c004bed23d0c1e (40 x NetWalker, 2 x GuLoader, 1 x ShikataGaNai)
ssdeep 1536:soF+H9XFz8nLOZ4Lny90ty2XGP0f7XBxe0GOOsmzC1od1:siMFGLmSy90tyAGP0fDGBslod
Threatray 305 similar samples on MalwareBazaar
TLSH 9E830901C425C539E0C161F6D7F656FADA398D5023B126C783C078BDFA63EE8A274B66
Reporter Anonymous
Tags:NetWalker


Avatar
Anonymous
Zero2Automated Course

Intelligence

File Origin
# of uploads :
1
# of downloads :
2'058
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Threat name:
Win32.Trojan.Nemty
Create hunting rule
Status:
Malicious
First seen:
2019-10-29 23:03:48 UTC
File Type:
PE (Exe)
AV detection:
26 of 31 (83.87%)
Threat level:
  5/5
Verdict:
unknown
Similar samples:
07b743dffd93be79b3ae4e8d5e0f05aec66af1115c4ec070df4cd35e800452d7
NetWalker
573873b7b2fbb390ff21bb4e986f69fa25a1f3eea2c5fe446d46c186ab92257d
NetWalker
5e03e3d93a456405952cdadee3018043789f118b871b93d113ce371c079f19dd
NetWalker
61d26a517d9a6dfaa47a65828a244f122d89e565dd86a2a6ac860aa95d9304a4
NetWalker
6f89cfef50cadb9e7e986ec913eb8c68bb14af5c576fe98dbe41060edf3cfe8a
NetWalker
b96ee4a55d59836de7851f99a18324c6aa8bc223fb581f1875db631d0c914425
NetWalker
bde6a59a4611aba5862ce66aef2fb12d841ad0ba0ad0a590b26eaddb7ad52a9e
NetWalker
d5c106719e9c8878795899bede78505796659b1b347fe9374d8b2061fcc6a84c
NetWalker
e01691e3b7d9d1c6de7e0ef902bf609543cdf084e600fd0a3833deaa501464ee
NetWalker
e7dfaf7ac518e174e42e59d45c179d083ad53eead79ed4420e311441e1af79d4
NetWalker
+ 295 additional samples on MalwareBazaar
Result
Malware family:
netwalker
Create hunting rule
Score:
  10/10
Tags:
family:netwalker persistence ransomware
Link:
https://tria.ge/reports/201109-mtm6gws382/
Behaviour
Interacts with shadow copies
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Modifies service
Suspicious use of SetThreadContext
Adds Run key to start application
Deletes itself
Modifies extensions of user files
Deletes shadow copies
Detected Netwalker Ransomware
Netwalker Ransomware
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:netwalker_ransomware
Create hunting rule
Author:Marc Rivero | McAfee ATR Team
Description:Rule to detect Netwalker ransomware
Reference:https://www.ccn-cert.cni.es/comunicacion-eventos/comunicados-ccn-cert/9802-publicado-un-informe-de-codigo-danino-sobre-netwalker.html

File information

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

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