netwire | b0a052d9fa857605714f59d67a65c03b0b599bc2ff38ca10e497ed3b642faccb

General

Target

a5e9907694816a3e6804ab03ee788250.exe
Size

393KB
MD5

a5e9907694816a3e6804ab03ee788250
SHA1

53bedea31764d97269f2c04abb07a12306fa39bc
SHA256

b0a052d9fa857605714f59d67a65c03b0b599bc2ff38ca10e497ed3b642faccb
SHA512

b10c91a49e121e4742b851056a570f08a0328f9544cb933b31a844932773cef9c974c7248b52043bc16430324765253bede9e67fe5fde13c941f34c4cdd2bb57
SSDEEP

6144:4ZFV6YJoVLIW91ILonX9buxDNae0rMAZZV8mS2vS+44kgQj1nKh/AY6PuqjDobE6:2T6eoVH91nnX84vS+4qQNUhqjDoIYoS

Score

10^/10

netwire botnet persistence rat stealer upx

Malware Config

Extracted

Family

netwire

C2

155.94.198.169:9112

Attributes

activex_autorun
false
copy_executable
true
delete_original
false
host_id
Corona-Virus
install_path
%AppData%\Install\offiice365.exe
keylogger_dir
%AppData%\Logs\
lock_executable
false
offline_keylogger
true
password
Pounds
registry_autorun
true
startup_name
officeii365
use_mutex
false

Signatures

NetWire RAT payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/1428-14-0x0000000000400000-0x0000000000434000-memory.dmp	netwire
behavioral2/memory/2380-15-0x0000000000400000-0x0000000000434000-memory.dmp	netwire
behavioral2/memory/1428-17-0x0000000000400000-0x0000000000434000-memory.dmp	netwire

Netwire
Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.
botnet stealer 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-1-5-21-910440534-423636034-2318342392-1000\Control Panel\International\Geo\Nation	test.exe

Executes dropped EXE 2 IoCs

pid	Process
2380	test.exe
1428	offiice365.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4388-0-0x0000000000400000-0x00000000004E9000-memory.dmp	upx
behavioral2/files/0x0008000000023222-4.dat	upx
behavioral2/memory/2380-5-0x0000000000400000-0x0000000000434000-memory.dmp	upx
behavioral2/memory/1428-14-0x0000000000400000-0x0000000000434000-memory.dmp	upx
behavioral2/memory/4388-16-0x0000000000400000-0x00000000004E9000-memory.dmp	upx
behavioral2/memory/2380-15-0x0000000000400000-0x0000000000434000-memory.dmp	upx
behavioral2/memory/1428-17-0x0000000000400000-0x0000000000434000-memory.dmp	upx

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-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\officeii365 = "C:\\Users\\Admin\\AppData\\Roaming\\Install\\offiice365.exe"	offiice365.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4388 wrote to memory of 4188	4388	a5e9907694816a3e6804ab03ee788250.exe	85
PID 4388 wrote to memory of 4188	4388	a5e9907694816a3e6804ab03ee788250.exe	85
PID 4388 wrote to memory of 4188	4388	a5e9907694816a3e6804ab03ee788250.exe	85
PID 4188 wrote to memory of 2380	4188	cmd.exe	86
PID 4188 wrote to memory of 2380	4188	cmd.exe	86
PID 4188 wrote to memory of 2380	4188	cmd.exe	86
PID 2380 wrote to memory of 1428	2380	test.exe	89
PID 2380 wrote to memory of 1428	2380	test.exe	89
PID 2380 wrote to memory of 1428	2380	test.exe	89

C:\Users\Admin\AppData\Local\Temp\a5e9907694816a3e6804ab03ee788250.exe
"C:\Users\Admin\AppData\Local\Temp\a5e9907694816a3e6804ab03ee788250.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4388
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c test.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4188
- - C:\Users\Admin\AppData\Local\Temp\test.exe
    test.exe
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:2380
  - - C:\Users\Admin\AppData\Roaming\Install\offiice365.exe
      "C:\Users\Admin\AppData\Roaming\Install\offiice365.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      PID:1428

Network

MITRE ATT&CK Enterprise v15

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
70KB

MD5
eacc8434d9ddd4c93ea0cb0283db90a6

SHA1
f60e1dc07f5238d688b22d8e46d9924b7a9d2872

SHA256
696063cab6b63873c298a5033e5be6b3b8213cc06df33221238d37cddd3c7187

SHA512
d96ba53db82185f00b787014fa12e45bb62f614f395b55354266499b9175a6710bcd312774cce41b6d7c4eab1361a4730b50ca5880cf82895be445821a0b5817

Download Submit
memory/1428-14-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1428-17-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2380-5-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2380-15-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4388-0-0x0000000000400000-0x00000000004E9000-memory.dmp

Filesize
932KB

Download
memory/4388-16-0x0000000000400000-0x00000000004E9000-memory.dmp

Filesize
932KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads