Malware Analysis Report

2025-01-18 18:13

Sample ID 230802-wth77ahh6x
Target Cobaltbghdbghich14_browsingExe.exe
SHA256 e933ec0f52cbc60b92134d48b08661b1af25c7d93ff5041fc704559b45bd85b8
Tags
netwire botnet persistence rat stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

e933ec0f52cbc60b92134d48b08661b1af25c7d93ff5041fc704559b45bd85b8

Threat Level: Known bad

The file Cobaltbghdbghich14_browsingExe.exe was found to be: Known bad.

Malicious Activity Summary

netwire botnet persistence rat stealer

NetWire RAT payload

Netwire

Executes dropped EXE

Loads dropped DLL

Adds Run key to start application

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Creates scheduled task(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-08-02 18:12

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-02 18:12

Reported

2023-08-02 18:17

Platform

win7-20230712-en

Max time kernel

117s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Cobaltbghdbghich14_browsingExe.exe"

Signatures

NetWire RAT payload

rat
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Netwire

botnet stealer netwire

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe N/A
N/A N/A C:\Users\Admin\pawmmueu.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\Cobaltbghdbghich14_browsingExe.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2196 set thread context of 2536 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Users\Admin\pawmmueu.exe

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2220 wrote to memory of 2196 N/A C:\Users\Admin\AppData\Local\Temp\Cobaltbghdbghich14_browsingExe.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe
PID 2220 wrote to memory of 2196 N/A C:\Users\Admin\AppData\Local\Temp\Cobaltbghdbghich14_browsingExe.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe
PID 2220 wrote to memory of 2196 N/A C:\Users\Admin\AppData\Local\Temp\Cobaltbghdbghich14_browsingExe.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe
PID 2220 wrote to memory of 2196 N/A C:\Users\Admin\AppData\Local\Temp\Cobaltbghdbghich14_browsingExe.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe
PID 2196 wrote to memory of 2208 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Windows\SysWOW64\cmd.exe
PID 2196 wrote to memory of 2208 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Windows\SysWOW64\cmd.exe
PID 2196 wrote to memory of 2208 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Windows\SysWOW64\cmd.exe
PID 2196 wrote to memory of 2208 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Windows\SysWOW64\cmd.exe
PID 2208 wrote to memory of 2328 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2208 wrote to memory of 2328 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2208 wrote to memory of 2328 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2208 wrote to memory of 2328 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2196 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Users\Admin\pawmmueu.exe
PID 2196 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Users\Admin\pawmmueu.exe
PID 2196 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Users\Admin\pawmmueu.exe
PID 2196 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Users\Admin\pawmmueu.exe
PID 2196 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Users\Admin\pawmmueu.exe
PID 2196 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Users\Admin\pawmmueu.exe
PID 2196 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Users\Admin\pawmmueu.exe
PID 2196 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Users\Admin\pawmmueu.exe
PID 2196 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Users\Admin\pawmmueu.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Cobaltbghdbghich14_browsingExe.exe

"C:\Users\Admin\AppData\Local\Temp\Cobaltbghdbghich14_browsingExe.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe lwbe.kcv

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c schtasks /create /sc minute /mo 5 /tn kciu /tr "C:\Users\Admin\kciu\pawmmueu.exe C:\Users\Admin\kciu\lwbe.kcv"

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /sc minute /mo 5 /tn kciu /tr "C:\Users\Admin\kciu\pawmmueu.exe C:\Users\Admin\kciu\lwbe.kcv"

C:\Users\Admin\pawmmueu.exe

0

Network

Country Destination Domain Proto
US 8.8.8.8:53 banqueislamik.ddrive.online udp

Files

\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe

MD5 ad5e6eb33f8b6b48fab6d9ab3e1212c1
SHA1 712f5e781df0e1cf0a52cc1312f097c290770909
SHA256 dd998d69304649d295691a188f8d0b04b4c2ca5dc7fb03494867bd7738200daa
SHA512 11822e5ec5b765109db5c132e8c7dd172f883bb7ae57f78be3861099aef24b0625dc943f2d20b4eff2615e5b98f2836322c8ccac526ee6448c04cfc28328c538

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe

MD5 ad5e6eb33f8b6b48fab6d9ab3e1212c1
SHA1 712f5e781df0e1cf0a52cc1312f097c290770909
SHA256 dd998d69304649d295691a188f8d0b04b4c2ca5dc7fb03494867bd7738200daa
SHA512 11822e5ec5b765109db5c132e8c7dd172f883bb7ae57f78be3861099aef24b0625dc943f2d20b4eff2615e5b98f2836322c8ccac526ee6448c04cfc28328c538

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\lwbe.kcv

MD5 f951e72df74c97a5f14efcd4973a5846
SHA1 da473bea7467bdc4f003144c606b5a2eab3e9fc3
SHA256 5b71626d99a74b1d8721cef74475a58a394eb9d9b8e46b4f3c4dd21faaaa333b
SHA512 abdfff664b61fd3018d3043b680ce2a4bced5d55679e6e377acfe6d89cd6ab7ca15b44a41e9ef71086cd61899c9b4c61aaf923eabd570f696ff37d13e04dd138

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe

MD5 ad5e6eb33f8b6b48fab6d9ab3e1212c1
SHA1 712f5e781df0e1cf0a52cc1312f097c290770909
SHA256 dd998d69304649d295691a188f8d0b04b4c2ca5dc7fb03494867bd7738200daa
SHA512 11822e5ec5b765109db5c132e8c7dd172f883bb7ae57f78be3861099aef24b0625dc943f2d20b4eff2615e5b98f2836322c8ccac526ee6448c04cfc28328c538

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\bkaf.uwj

MD5 d8afc98db18400695af8bf2d76fe2a10
SHA1 d20843b5c6996e198d1c57fe123f46587d36e767
SHA256 c3b885c12ed1cfa6ab2308754fc6b145ac93b170e16d954d83180f9dceda82fb
SHA512 582df46b3c0fb1e08f3fccfa42c3f37fc4efb0501937c398dbc20e820c0e568ff6f490cf87282cd50197dcbc8eaa642d23e847f277d7663680251631e3ac4230

memory/2196-69-0x0000000000A30000-0x0000000000E30000-memory.dmp

\Users\Admin\pawmmueu.exe

MD5 0e06054beb13192588e745ee63a84173
SHA1 30b7d4d1277bafd04a83779fd566a1f834a8d113
SHA256 c5d6d56ded55fbd6c150ee3a0eb2e5671cae83106be2be4d70ce50aa50bab768
SHA512 251a112f3f037e62ff67a467389e47a56afb344bc942b17efa9bd2970494718b26bbee9adc3ac35f93ee4d2114aa426b6d0ea4bafad294b6c118a15f1977c215

memory/2536-73-0x0000000000F50000-0x0000000001F50000-memory.dmp

memory/2536-74-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2536-75-0x0000000000F50000-0x0000000001F50000-memory.dmp

C:\Users\Admin\pawmmueu.exe

MD5 0e06054beb13192588e745ee63a84173
SHA1 30b7d4d1277bafd04a83779fd566a1f834a8d113
SHA256 c5d6d56ded55fbd6c150ee3a0eb2e5671cae83106be2be4d70ce50aa50bab768
SHA512 251a112f3f037e62ff67a467389e47a56afb344bc942b17efa9bd2970494718b26bbee9adc3ac35f93ee4d2114aa426b6d0ea4bafad294b6c118a15f1977c215

memory/2536-78-0x0000000000F50000-0x0000000001F50000-memory.dmp

memory/2536-79-0x0000000000F50000-0x0000000001F50000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-02 18:12

Reported

2023-08-02 18:18

Platform

win10v2004-20230703-en

Max time kernel

160s

Max time network

173s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Cobaltbghdbghich14_browsingExe.exe"

Signatures

NetWire RAT payload

rat
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Netwire

botnet stealer netwire

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe N/A
N/A N/A C:\Users\Admin\pawmmueu.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\Cobaltbghdbghich14_browsingExe.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3204 set thread context of 3040 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Users\Admin\pawmmueu.exe

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4052 wrote to memory of 3204 N/A C:\Users\Admin\AppData\Local\Temp\Cobaltbghdbghich14_browsingExe.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe
PID 4052 wrote to memory of 3204 N/A C:\Users\Admin\AppData\Local\Temp\Cobaltbghdbghich14_browsingExe.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe
PID 4052 wrote to memory of 3204 N/A C:\Users\Admin\AppData\Local\Temp\Cobaltbghdbghich14_browsingExe.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe
PID 3204 wrote to memory of 3220 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Windows\SysWOW64\cmd.exe
PID 3204 wrote to memory of 3220 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Windows\SysWOW64\cmd.exe
PID 3204 wrote to memory of 3220 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Windows\SysWOW64\cmd.exe
PID 3204 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Users\Admin\pawmmueu.exe
PID 3204 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Users\Admin\pawmmueu.exe
PID 3204 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Users\Admin\pawmmueu.exe
PID 3204 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Users\Admin\pawmmueu.exe
PID 3204 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe C:\Users\Admin\pawmmueu.exe
PID 3220 wrote to memory of 2036 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 3220 wrote to memory of 2036 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 3220 wrote to memory of 2036 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Cobaltbghdbghich14_browsingExe.exe

"C:\Users\Admin\AppData\Local\Temp\Cobaltbghdbghich14_browsingExe.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe lwbe.kcv

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c schtasks /create /sc minute /mo 5 /tn kciu /tr "C:\Users\Admin\kciu\pawmmueu.exe C:\Users\Admin\kciu\lwbe.kcv"

C:\Users\Admin\pawmmueu.exe

0

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /sc minute /mo 5 /tn kciu /tr "C:\Users\Admin\kciu\pawmmueu.exe C:\Users\Admin\kciu\lwbe.kcv"

Network

Country Destination Domain Proto
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 banqueislamik.ddrive.online udp
US 8.8.8.8:53 1.77.109.52.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 174.166.122.92.in-addr.arpa udp
US 8.8.8.8:53 10.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 banqueislamik.ddrive.online udp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe

MD5 ad5e6eb33f8b6b48fab6d9ab3e1212c1
SHA1 712f5e781df0e1cf0a52cc1312f097c290770909
SHA256 dd998d69304649d295691a188f8d0b04b4c2ca5dc7fb03494867bd7738200daa
SHA512 11822e5ec5b765109db5c132e8c7dd172f883bb7ae57f78be3861099aef24b0625dc943f2d20b4eff2615e5b98f2836322c8ccac526ee6448c04cfc28328c538

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pawmmueu.exe

MD5 ad5e6eb33f8b6b48fab6d9ab3e1212c1
SHA1 712f5e781df0e1cf0a52cc1312f097c290770909
SHA256 dd998d69304649d295691a188f8d0b04b4c2ca5dc7fb03494867bd7738200daa
SHA512 11822e5ec5b765109db5c132e8c7dd172f883bb7ae57f78be3861099aef24b0625dc943f2d20b4eff2615e5b98f2836322c8ccac526ee6448c04cfc28328c538

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\lwbe.kcv

MD5 f951e72df74c97a5f14efcd4973a5846
SHA1 da473bea7467bdc4f003144c606b5a2eab3e9fc3
SHA256 5b71626d99a74b1d8721cef74475a58a394eb9d9b8e46b4f3c4dd21faaaa333b
SHA512 abdfff664b61fd3018d3043b680ce2a4bced5d55679e6e377acfe6d89cd6ab7ca15b44a41e9ef71086cd61899c9b4c61aaf923eabd570f696ff37d13e04dd138

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\bkaf.uwj

MD5 d8afc98db18400695af8bf2d76fe2a10
SHA1 d20843b5c6996e198d1c57fe123f46587d36e767
SHA256 c3b885c12ed1cfa6ab2308754fc6b145ac93b170e16d954d83180f9dceda82fb
SHA512 582df46b3c0fb1e08f3fccfa42c3f37fc4efb0501937c398dbc20e820c0e568ff6f490cf87282cd50197dcbc8eaa642d23e847f277d7663680251631e3ac4230

memory/3204-147-0x00000000017C0000-0x0000000001BC0000-memory.dmp

memory/3040-149-0x0000000000A30000-0x0000000001A30000-memory.dmp

C:\Users\Admin\pawmmueu.exe

MD5 9d352bc46709f0cb5ec974633a0c3c94
SHA1 1969771b2f022f9a86d77ac4d4d239becdf08d07
SHA256 2c1eeb7097023c784c2bd040a2005a5070ed6f3a4abf13929377a9e39fab1390
SHA512 13c714244ec56beeb202279e4109d59c2a43c3cf29f90a374a751c04fd472b45228ca5a0178f41109ed863dbd34e0879e4a21f5e38ae3d89559c57e6be990a9b

memory/3040-151-0x0000000000A30000-0x0000000001A30000-memory.dmp

memory/3040-152-0x0000000000A30000-0x0000000001A30000-memory.dmp

memory/3040-153-0x0000000000A30000-0x0000000001A30000-memory.dmp