netwire | edcc80df05e3645c7f44345c9e62603bc4a6ad83dfaf048e57722125ae7d5dd5

General

Target
tmpczby4_fu.exe
Size 597KB
Sample260601-y6bd8aex5s
SHA256 edcc80df05e3645c7f44345c9e62603bc4a6ad83dfaf048e57722125ae7d5dd5
MD5 ba10854657d0090ce097a298f46c8abe
SHA1 d93da0f1be71cd78cff28369528123a1f1f4e34d
SHA512 4f5981923f480dd33dd29a64878de9b555199a12a87124a605ab740a0244e515835e023622e551177deef43e646aecf73e8b0f40bb4ad53e054c733fb3ffaf3f
SSDEEP 12288:wJz0TrCqVM8UoAs4fg4xbFs9lLaAgev1pS4aCkFdqri9VWQMkbx/yMFqNfuy:MirCkUo8fLBqmze9pS4a7qu9VdMkbIMe
TLSH
T16FD402D0BCC62CD7F5A53E3DD3E8921526ACEAD49F26CB67BF30C93656063920E81506
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

botnet discovery netwire persistence rat stealer upx

Malware Config

Extracted

Family

netwire

C2

automan.duckdns.org:3382

Attributes

activex_autorun
false
copy_executable
true
delete_original
false
host_id
HostId-%Rand%
install_path
%AppData%\Install\Host.exe
keylogger_dir
%AppData%\Logs\
lock_executable
false
mutex
HDPAYslj
offline_keylogger
true
password
onelove82
registry_autorun
true
startup_name
NetWire
use_mutex
true

Signatures

Family: Netwire
Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.
botnet stealer netwire

NetWire RAT payload 5 IoCs

rat

resource	yara_rule
behavioral2/files/0x000f0000000243c2-3.dat	netwire
behavioral2/memory/1760-15-0x0000000000400000-0x000000000042B000-memory.dmp	netwire
behavioral2/memory/4968-14-0x0000000000400000-0x000000000042B000-memory.dmp	netwire
behavioral2/memory/3888-19-0x0000000000400000-0x000000000042B000-memory.dmp	netwire
behavioral2/memory/4968-20-0x0000000000400000-0x000000000042B000-memory.dmp	netwire

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Control Panel\International\Geo\Nation	test.exe

Executes dropped EXE 3 IoCs

pid	Process
1760	test.exe
4968	Host.exe
3888	Host.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NetWire = "C:\\Users\\Admin\\AppData\\Roaming\\Install\\Host.exe"	Host.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3244-0-0x0000000000400000-0x000000000055D000-memory.dmp	upx
behavioral2/memory/3244-17-0x0000000000400000-0x000000000055D000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmpczby4_fu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	test.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Host.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3244 wrote to memory of 4560	3244	tmpczby4_fu.exe	89
PID 4560 wrote to memory of 1760	4560	cmd.exe	90
PID 1760 wrote to memory of 4968	1760	test.exe	92

C:\Users\Admin\AppData\Local\Temp\tmpczby4_fu.exe
"C:\Users\Admin\AppData\Local\Temp\tmpczby4_fu.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3244
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c test.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4560
- - C:\Users\Admin\AppData\Local\Temp\test.exe
    test.exe
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1760
  - - C:\Users\Admin\AppData\Roaming\Install\Host.exe
      "C:\Users\Admin\AppData\Roaming\Install\Host.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:4968

C:\Users\Admin\AppData\Roaming\Install\Host.exe
C:\Users\Admin\AppData\Roaming\Install\Host.exe
1⤵
- Executes dropped EXE
PID:3888

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

test.exe

Path C:\Users\Admin\AppData\Local\Temp\test.exe
Size 127KB
SHA256 d5e61bdd7736038993c3762a6a2192b2730a44562bde045fa95ba9e45525bc3c
MD5 947c706540a4f3083fc09dbbd20aa0d7
SHA1 b1add7d17a38b1d0e906ad86f034c6528bb371af
SHA512 df794541bd7fe99058f5de6dd7e4e158a657aae31d00d464718f836a07f6a9af36b073a312586bfa7d4ad672c4fd58c6644b788eeb5fd20496d398383c1d7e23
SSDEEP 3072:Uq3E2BfBSbEsz7nCAFVNNvBGvdO5gPaEjep8Fe7Z1iO7ZbvbbQV7:BRBfBSosz7nCA3NHCdXaEj7Fe7Z1iOFi
TLSH
T158D31A04EE87A0F2FE0B4D70A5CBF7FF4A295605C224DEA2DFA46D82FA13D15110A756
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1760-6-0x0000000000427000-0x0000000000428000-memory.dmp

Download

memory/1760-15-0x0000000000400000-0x000000000042B000-memory.dmp

Download

memory/3244-0-0x0000000000400000-0x000000000055D000-memory.dmp

Download

memory/3244-17-0x0000000000400000-0x000000000055D000-memory.dmp

Download

memory/3888-19-0x0000000000400000-0x000000000042B000-memory.dmp

Download

memory/4968-14-0x0000000000400000-0x000000000042B000-memory.dmp

Download

memory/4968-20-0x0000000000400000-0x000000000042B000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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