netwire | 48d5f8ef5449387f721907a96a8eab0f7827f393db4c96d351bab43de7944d95

General

Target

7b0c5b6d2b384472a66a91446e3871a6.exe
Size

111KB
MD5

7b0c5b6d2b384472a66a91446e3871a6
SHA1

43f7d3727ff16afed19acd8a152c13b72b789d5f
SHA256

48d5f8ef5449387f721907a96a8eab0f7827f393db4c96d351bab43de7944d95
SHA512

214b1ec30417fd5c009f7cace9855d2bff2417099d6b863fbc014bc57a0e041b100a7585dd719af0d3398474b860f05d75d7b8fc3f979b2a8eada2d1b362e501
SSDEEP

768:iH059SCyqm4AxvqFTTT5jTTTT+lYeAcoMNii6LKtMwZ5JkQ0sKoIQr0/FLyTsMa7:807SCxCQTTT5jTTTT+rzVb00fLZDQ

Score

10^/10

netwire purecrypter botnet downloader loader persistence rat stealer

Malware Config

Extracted

Family

purecrypter

C2

https://firebasestorage.googleapis.com/v0/b/hjop-9ee35.appspot.com/o/Xuwbqh.dat?alt=media&token=f8835a49-5488-429f-8453-0ec2ff1d135e

Extracted

Family

netwire

C2

netwire2021.duckdns.org:7929

Attributes

activex_autorun
false
copy_executable
false
delete_original
false
host_id
HostId-%Rand%
keylogger_dir
%AppData%\Logs\
lock_executable
false
mutex
qFlJFfII
offline_keylogger
true
password
Password
registry_autorun
false
use_mutex
true

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\rttyr.exe\","	7b0c5b6d2b384472a66a91446e3871a6.exe

NetWire RAT payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/4736-167-0x0000000000400000-0x0000000000433000-memory.dmp	netwire
behavioral2/memory/4736-170-0x0000000000400000-0x0000000000433000-memory.dmp	netwire
behavioral2/memory/4736-171-0x0000000000400000-0x0000000000433000-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
PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
loader downloader purecrypter

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-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation	7b0c5b6d2b384472a66a91446e3871a6.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4124 set thread context of 4736	4124	7b0c5b6d2b384472a66a91446e3871a6.exe	93

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4880	powershell.exe
4880	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4124	7b0c5b6d2b384472a66a91446e3871a6.exe
Token: SeDebugPrivilege	4880	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4124 wrote to memory of 4880	4124	7b0c5b6d2b384472a66a91446e3871a6.exe	86
PID 4124 wrote to memory of 4880	4124	7b0c5b6d2b384472a66a91446e3871a6.exe	86
PID 4124 wrote to memory of 4880	4124	7b0c5b6d2b384472a66a91446e3871a6.exe	86
PID 4124 wrote to memory of 4736	4124	7b0c5b6d2b384472a66a91446e3871a6.exe	93
PID 4124 wrote to memory of 4736	4124	7b0c5b6d2b384472a66a91446e3871a6.exe	93
PID 4124 wrote to memory of 4736	4124	7b0c5b6d2b384472a66a91446e3871a6.exe	93
PID 4124 wrote to memory of 4736	4124	7b0c5b6d2b384472a66a91446e3871a6.exe	93
PID 4124 wrote to memory of 4736	4124	7b0c5b6d2b384472a66a91446e3871a6.exe	93
PID 4124 wrote to memory of 4736	4124	7b0c5b6d2b384472a66a91446e3871a6.exe	93
PID 4124 wrote to memory of 4736	4124	7b0c5b6d2b384472a66a91446e3871a6.exe	93
PID 4124 wrote to memory of 4736	4124	7b0c5b6d2b384472a66a91446e3871a6.exe	93
PID 4124 wrote to memory of 4736	4124	7b0c5b6d2b384472a66a91446e3871a6.exe	93
PID 4124 wrote to memory of 4736	4124	7b0c5b6d2b384472a66a91446e3871a6.exe	93
PID 4124 wrote to memory of 4736	4124	7b0c5b6d2b384472a66a91446e3871a6.exe	93

C:\Users\Admin\AppData\Local\Temp\7b0c5b6d2b384472a66a91446e3871a6.exe
"C:\Users\Admin\AppData\Local\Temp\7b0c5b6d2b384472a66a91446e3871a6.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4124
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMwAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4880
- C:\Users\Admin\AppData\Local\Temp\7b0c5b6d2b384472a66a91446e3871a6.exe
  C:\Users\Admin\AppData\Local\Temp\7b0c5b6d2b384472a66a91446e3871a6.exe
  2⤵
  PID:4736

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Privilege Escalation

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\__PSScriptPolicyTest_3ww353mk.dye.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4124-133-0x0000000000AA0000-0x0000000000AC0000-memory.dmp

Filesize
128KB

Download
memory/4124-134-0x0000000005B20000-0x00000000060C4000-memory.dmp

Filesize
5.6MB

Download
memory/4124-135-0x0000000005480000-0x0000000005512000-memory.dmp

Filesize
584KB

Download
memory/4124-136-0x0000000005710000-0x0000000005720000-memory.dmp

Filesize
64KB

Download
memory/4124-137-0x0000000005590000-0x000000000559A000-memory.dmp

Filesize
40KB

Download
memory/4124-138-0x0000000007FF0000-0x0000000008012000-memory.dmp

Filesize
136KB

Download
memory/4124-158-0x0000000005710000-0x0000000005720000-memory.dmp

Filesize
64KB

Download
memory/4736-171-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4736-170-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4736-167-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4880-153-0x0000000002800000-0x0000000002810000-memory.dmp

Filesize
64KB

Download
memory/4880-152-0x0000000002800000-0x0000000002810000-memory.dmp

Filesize
64KB

Download
memory/4880-154-0x0000000005DA0000-0x0000000005DBE000-memory.dmp

Filesize
120KB

Download
memory/4880-155-0x00000000075F0000-0x0000000007C6A000-memory.dmp

Filesize
6.5MB

Download
memory/4880-156-0x0000000006290000-0x00000000062AA000-memory.dmp

Filesize
104KB

Download
memory/4880-157-0x0000000002800000-0x0000000002810000-memory.dmp

Filesize
64KB

Download
memory/4880-142-0x0000000005760000-0x00000000057C6000-memory.dmp

Filesize
408KB

Download
memory/4880-159-0x0000000002800000-0x0000000002810000-memory.dmp

Filesize
64KB

Download
memory/4880-160-0x0000000002800000-0x0000000002810000-memory.dmp

Filesize
64KB

Download
memory/4880-161-0x0000000002800000-0x0000000002810000-memory.dmp

Filesize
64KB

Download
memory/4880-141-0x0000000005640000-0x00000000056A6000-memory.dmp

Filesize
408KB

Download
memory/4880-140-0x0000000004E60000-0x0000000005488000-memory.dmp

Filesize
6.2MB

Download
memory/4880-139-0x00000000027C0000-0x00000000027F6000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads