MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8143a5d0347139eadfdd5d38ceaf661057603f9245c70116f31b85fb07de02aa. 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


NetWire


Vendor detections: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8143a5d0347139eadfdd5d38ceaf661057603f9245c70116f31b85fb07de02aa
SHA3-384 hash: 102a4c9da50b04368638051bee72e3ee1fe18a6a3083a7d2dcb60095f6d92110a9d209ca8366450e15cd1dafb4216daa
SHA1 hash: 6bb1f7c0403bb4b806819b168618f15579232805
MD5 hash: ee4abfe6a451eb5dc7adb5ec8811b7ff
humanhash: carolina-kentucky-avocado-uniform
File name:Attachment.exe
Download: download sample
Signature NetWire
Create hunting rule
File size:864'768 bytes
First seen:2021-09-09 18:20:55 UTC
Last seen:2021-09-10 05:06:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 6da2e3f69203d2c4b15426c5555b3c99 (2 x RemcosRAT, 1 x NetWire, 1 x BitRAT)
ssdeep 12288:FJ07BGWcovyyY29t38Nhrsf2xSKc+FQnuUOpukpxkMCEZL:DyVcovY29tsPrsuzc+FQuUAukpxkJ
Threatray 1'085 similar samples on MalwareBazaar
TLSH T188054B5CE7970835F1231639EC1A5A65582DFE923E29DE4A33B0CECB1F25E4234E6127
dhash icon ba7a6a6afa9a9ae4 (2 x RemcosRAT, 1 x NetWire, 1 x BitRAT)
Reporter GovCERT_CH
Tags:exe NetWire

Intelligence

File Origin
# of uploads :
2
# of downloads :
793
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Attachment.exe
Verdict:
Malicious activity
Analysis date:
2021-09-09 18:23:33 UTC
Tags:
installer trojan rat netwire
Link:
https://app.any.run/tasks/14141205-bbf0-4317-b84d-30cea776d67b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
NetWire
Create hunting rule
Link:
https://www.capesandbox.com/analysis/186729/
Detection(s):
PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Deleting a recently created file
Launching a process
Running batch commands
Creating a process with a hidden window
Launching cmd.exe command interpreter
Sending a UDP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Malware family:
NetWire RAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d90ab7b9-1cf7-4b7d-9f81-a8a877b5e51e
Result
Threat name:
NetWire
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/848367
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Internet Explorer form passwords
Creates a thread in another existing process (thread injection)
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected NetWire RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 480794 Sample: Attachment.exe Startdate: 09/09/2021 Architecture: WINDOWS Score: 100 59 Multi AV Scanner detection for domain / URL 2->59 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 6 other signatures 2->65 8 Attachment.exe 1 22 2->8         started        13 Fpbgfbo.exe 15 2->13         started        15 Fpbgfbo.exe 15 2->15         started        process3 dnsIp4 45 onedrive.live.com 8->45 47 dm-files.fe.1drv.com 8->47 49 cvkfja.dm.files.1drv.com 8->49 41 C:\Users\Public\Libraries\...\Fpbgfbo.exe, PE32 8->41 dropped 73 Writes to foreign memory regions 8->73 75 Creates a thread in another existing process (thread injection) 8->75 77 Injects a PE file into a foreign processes 8->77 17 secinit.exe 2 8->17         started        21 cmd.exe 1 8->21         started        23 cmd.exe 1 8->23         started        51 onedrive.live.com 13->51 55 2 other IPs or domains 13->55 25 ieinstal.exe 13->25         started        53 onedrive.live.com 15->53 57 2 other IPs or domains 15->57 27 logagent.exe 15->27         started        file5 signatures6 process7 dnsIp8 43 sinzu1.ddns.net 185.157.161.92, 49755, 49800, 49801 OBE-EUROPEObenetworkEuropeSE Sweden 17->43 67 Contains functionality to log keystrokes 17->67 69 Contains functionality to steal Internet Explorer form passwords 17->69 71 Contains functionality to steal Chrome passwords or cookies 17->71 29 reg.exe 1 21->29         started        31 conhost.exe 21->31         started        33 cmd.exe 1 23->33         started        35 conhost.exe 23->35         started        signatures9 process10 process11 37 conhost.exe 29->37         started        39 conhost.exe 33->39         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8143a5d0347139eadfdd5d38ceaf661057603f9245c70116f31b85fb07de02aa/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-09-09 16:49:28 UTC
File Type:
PE (Exe)
Extracted files:
38
AV detection:
11 of 28 (39.29%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qfb2lubuoe46vx65lu4m5l3gcblwap4sixdqcfxtdoc7wb66akva._file
Verdict:
malicious
Label(s):
netwirerc
Create hunting rule
Similar samples:
174d091dcf5a5b2c4af35b5df2e4094ddf31bc589208f7b79ff5fc0db2dde514
NetWire
3db99896428786088fbe532fa990f3f1ae746ae484a694366bf074dcafe1eb22
NetWire
418cf2d183b0ad4239752ae06861e629bf3e8f5ffec607c3eb4fae2ce130a5ff
NetWire
68a28a1fbf14618f4239f6f1229e242fd3180d1382f0b7f4e12b7982a5ad5f28
NetWire
7a66553c936c327966af58c1b967b05767bfab5a68660dbcb79fb0724401e32c
NetWire
82e96593173c1407d138cca5418a00b0f5cd9960b32d8f03052eca9b33e68b44
NetWire
8a5035fd03311d20137b4111bee190142fa9c653ed60e57be2802665fe8bdb24
NetWire
a2856e021b71721e15a64bcd1692b67962ba637c735952c6b1b797f279c0bfb5
NetWire
ece26faace5bcf7afeba359279d17aeb7f99f739fce454e964c88ebad9745bdb
NetWire
+ 1'075 additional samples on MalwareBazaar
Result
Malware family:
netwire
Create hunting rule
Score:
  10/10
Tags:
family:netwire botnet persistence rat stealer
Link:
https://tria.ge/reports/210909-wzbejagfa5/
Behaviour
Modifies registry key
Suspicious use of WriteProcessMemory
Adds Run key to start application
NetWire RAT payload
Netwire
Malware Config
C2 Extraction:
sinzu1.ddns.net:6655
sinzu2.ddns.net:6655
sinzu3.ddns.net:6655
sinzu4.ddns.net:6655
sinzu5.ddns.net:6655
sinzu6.ddns.net:6655
sinzu7.ddns.net:6655
Unpacked files
SH256 hash:
cd4b225505e84218ef7418c8e5f41acbb67c51bd43e9ddcfa25341259377d3df
MD5 hash:
b7816cb3535b2f2675804d3052295003
SHA1 hash:
db4588853aa1ec16b1f2d29b1e873a653a1ecb13
Link:
https://www.unpac.me/results/92ab08f1-619c-43be-b196-63f36a1f52f0/
SH256 hash:
8143a5d0347139eadfdd5d38ceaf661057603f9245c70116f31b85fb07de02aa
MD5 hash:
ee4abfe6a451eb5dc7adb5ec8811b7ff
SHA1 hash:
6bb1f7c0403bb4b806819b168618f15579232805
Link:
https://www.unpac.me/results/92ab08f1-619c-43be-b196-63f36a1f52f0/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/8143a5d03471/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.64
Link:
https://yomi.yoroi.company/submissions/8143a5d0347139eadfdd5d38ceaf661057603f9245c70116f31b85fb07de02aa

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_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EnvVarScheduledTasks
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC (ab)using Environment Variables in Scheduled Tasks
Rule name:MALWARE_Win_NetWire
Create hunting rule
Author:ditekSHen
Description:Detects NetWire RAT
Rule name:win_netwire_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.netwire.

File information

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

Malspam

NetWire

Executable exe 8143a5d0347139eadfdd5d38ceaf661057603f9245c70116f31b85fb07de02aa

(this sample)

  
Dropped by
netwire
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/186729/

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