MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 00367d927216bdf6e8d8e9d825efce6f356f469e5358e604bd26d2e9396e27de. 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: 13


Maldoc score: 9


Intelligence 13 IOCs 1 YARA 2 File information Comments

SHA256 hash: 00367d927216bdf6e8d8e9d825efce6f356f469e5358e604bd26d2e9396e27de
SHA3-384 hash: b6cf2ae62672d161cfefd595fdab3a3cad2e88971a3869bf87201d6402e23479a0697e852a8808b332dd6e08ae4972cf
SHA1 hash: 60978fac75ab4b6e3d688dca0b0ef3a0b60c726c
MD5 hash: 49a2939cf3f41a5f15848196509bba05
humanhash: winner-jig-johnny-autumn
File name:TC0166302.xlsm
Download: download sample
Signature NetWire
File size:441'467 bytes
First seen:2022-04-20 11:16:12 UTC
Last seen:Never
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 12288:zEXQu7SHOCZhSTIS2dGpeWpqivD1YxR25O8Ua:RwarmMSAGMID1R5Ota
TLSH T1CB942300C7E19E2AAC8450B7EF14C7C450E27593E18F2D492B7CBA6D60DBC6E516E9EC
TrID 42.2% (.XLAM) Excel Macro-enabled Open XML add-in (83500/1/13)
29.1% (.XLSM) Excel Microsoft Office Open XML Format document (with Macro) (57500/1/12)
17.2% (.XLSX) Excel Microsoft Office Open XML Format document (34000/1/7)
8.8% (.ZIP) Open Packaging Conventions container (17500/1/4)
2.0% (.ZIP) ZIP compressed archive (4000/1)
Reporter abuse_ch
Tags:NetWire RAT xlsm


Avatar
abuse_ch
NetWire C2:
212.192.246.209:141

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
212.192.246.209:141 https://threatfox.abuse.ch/ioc/521926/

Office OLE Information


This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE id
Maldoc score: 9
OLE dump

MalwareBazaar was able to identify 8 sections in this file using oledump:

Section IDSection sizeSection name
A1529 bytesPROJECT
A289 bytesPROJECTwm
A3169 bytesVBA/Sheet1
A4362 bytesVBA/ThisWorkbook
A5171 bytesVBA/Workbook
A67 bytesVBA/_VBA_PROJECT
A7228 bytesVBA/dir
OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

TypeKeywordDescription
AutoExecWorkbook_OpenRuns when the Excel Workbook is opened
IOC3.70.247.229IPv4 address
IOCcertutil.exeExecutable file name
IOCTC_0166302.batExecutable file name
IOCJjljrbcvtoibqc.exeExecutable file name
SuspiciousShellMay run an executable file or a system command
SuspiciousvbHideMay run an executable file or a system command
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousBase64 StringsBase64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence


File Origin
# of uploads :
1
# of downloads :
463
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Malicious
File type:
application/vnd.ms-excel.sheet.macroEnabled.12
Has a screenshot:
False
Contains macros:
True
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Changing an executable file
Launching a process
Sending an HTTP GET request
Creating a file
Creating a process from a recently created file
Running batch commands
Unauthorized injection to a recently created process
Running batch commands by exploiting the app vulnerability
Infecting executable files
Result
Verdict:
Malicious
File Type:
Excel File with Macro
Payload URLs
URL
File name
http://3.70.247.229/dash/loader/uploads/TC_0166302.bat
ThisWorkbook
Document image
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
certutil certutil.exe cmd control.exe macros macros-on-open
Label:
Malicious
Suspicious Score:
9.9/10
Score Malicious:
1%
Score Benign:
0%
Result
Verdict:
MALICIOUS
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
IPv4 Dotted Quad URL
A URL was detected referencing a direct IP address, as opposed to a domain name.
Macro Execution Coercion
Detected a document that appears to social engineer the user into activating embedded logic.
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
InQuest Machine Learning
An InQuest machine-learning model classified this macro as potentially malicious.
Document With No Content
Document contains little or no semantic information.
Result
Threat name:
NetWire Snake Keylogger
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Contains functionality to steal Chrome passwords or cookies
Creates an autostart registry key pointing to binary in C:\Windows
Creates multiple autostart registry keys
Document contains an embedded VBA macro which may execute processes
Document exploit detected (process start blacklist hit)
Drops PE files to the document folder of the user
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)
May check the online IP address of the machine
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Suspicious Certutil Command
Sigma detected: Windows Shell File Write to Suspicious Folder
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 harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected NetWire RAT
Yara detected Snake Keylogger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 612008 Sample: TC0166302.xlsm Startdate: 20/04/2022 Architecture: WINDOWS Score: 100 85 132.226.8.169, 49187, 80 UTMEMUS United States 2->85 87 freegeoip.app 2->87 89 2 other IPs or domains 2->89 115 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->115 117 Malicious sample detected (through community Yara rule) 2->117 119 Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros) 2->119 121 11 other signatures 2->121 11 EXCEL.EXE 53 14 2->11         started        14 Aoev.exe 2->14         started        17 Aoev.exe 2->17         started        19 Adsrlneev.exe 2->19         started        signatures3 process4 file5 75 C:\Users\user\Desktop\~$TC0166302.xlsm, data 11->75 dropped 21 cmd.exe 11->21         started        153 Writes to foreign memory regions 14->153 155 Allocates memory in foreign processes 14->155 157 Injects a PE file into a foreign processes 14->157 23 InstallUtil.exe 14->23         started        27 cmd.exe 14->27         started        29 Xxecdlwxcoehmuh.exe 17->29         started        31 cmd.exe 17->31         started        signatures6 process7 dnsIp8 33 Jjljrbcvtoibqc.exe.exe 14 9 21->33         started        37 certutil.exe 14 21->37         started        97 freegeoip.app 23->97 99 checkip.dyndns.org 23->99 101 checkip.dyndns.com 23->101 127 Tries to steal Mail credentials (via file / registry access) 23->127 129 Tries to harvest and steal ftp login credentials 23->129 131 Tries to harvest and steal browser information (history, passwords, etc) 23->131 40 timeout.exe 27->40         started        133 Writes to foreign memory regions 29->133 135 Allocates memory in foreign processes 29->135 137 Injects a PE file into a foreign processes 29->137 42 timeout.exe 31->42         started        signatures9 process10 dnsIp11 63 C:\Users\user\AppData\Roaming\...\Aoev.exe, PE32 33->63 dropped 65 C:\Users\user\AppData\...\Xxecdlwxcoehmuh.exe, PE32 33->65 dropped 103 Machine Learning detection for dropped file 33->103 105 Creates multiple autostart registry keys 33->105 107 Writes to foreign memory regions 33->107 113 2 other signatures 33->113 44 Xxecdlwxcoehmuh.exe 13 2 33->44         started        48 InstallUtil.exe 12 33->48         started        51 cmd.exe 33->51         started        91 3.70.247.229, 49173, 49174, 49175 AMAZON-02US United States 37->91 67 C:\Users\user\...\Jjljrbcvtoibqc.exe.exe, PE32 37->67 dropped 69 C:\Users\user\AppData\...\TC_0166302[1].bat, PE32 37->69 dropped 71 C:\Users\...\26BDC797DDA1505F0ECD70AA5B756FC9, PE32 37->71 dropped 73 C:\Users\...\26BDC797DDA1505F0ECD70AA5B756FC9, data 37->73 dropped 109 System process connects to network (likely due to code injection or exploit) 37->109 111 Drops PE files to the document folder of the user 37->111 file12 signatures13 process14 dnsIp15 77 C:\Users\user\AppData\...\Adsrlneev.exe, PE32 44->77 dropped 139 Machine Learning detection for dropped file 44->139 141 Creates multiple autostart registry keys 44->141 143 Writes to foreign memory regions 44->143 151 2 other signatures 44->151 53 InstallUtil.exe 44->53         started        57 cmd.exe 44->57         started        79 checkip.dyndns.com 158.101.44.242, 49177, 49183, 80 ORACLE-BMC-31898US United States 48->79 81 freegeoip.app 188.114.97.7, 443, 49178, 49184 CLOUDFLARENETUS European Union 48->81 83 checkip.dyndns.org 48->83 145 May check the online IP address of the machine 48->145 147 Tries to steal Mail credentials (via file / registry access) 48->147 149 Contains functionality to steal Chrome passwords or cookies 48->149 59 timeout.exe 51->59         started        file16 signatures17 process18 dnsIp19 93 212.192.246.209, 141, 49182, 49191 RHC-HOSTINGGB Russian Federation 53->93 95 127.0.0.1 unknown unknown 53->95 123 Creates multiple autostart registry keys 53->123 125 Creates an autostart registry key pointing to binary in C:\Windows 53->125 61 timeout.exe 57->61         started        signatures20 process21
Threat name:
Document-Excel.Downloader.Powdow
Status:
Malicious
First seen:
2022-04-20 11:17:05 UTC
File Type:
Document
Extracted files:
26
AV detection:
21 of 41 (51.22%)
Threat level:
  3/5
Result
Malware family:
snakekeylogger
Score:
  10/10
Tags:
family:netwire family:snakekeylogger botnet collection keylogger persistence rat stealer
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Loads dropped DLL
Downloads MZ/PE file
Executes dropped EXE
NetWire RAT payload
Netwire
Process spawned unexpected child process
Snake Keylogger
Snake Keylogger Payload
Malware Config
C2 Extraction:
127.0.0.1:3360
212.192.246.209:141
Malware family:
SnakeKeylogger
Verdict:
Malicious
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:BitcoinAddress
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:malware_shellcode_hash
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value

File information


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

Comments