purecrypter | 8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0

General

Target

8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe
Size

6KB
MD5

48a13c217c965ed66e5d6c018b89217b
SHA1

2d8b62d02c73e7e2fc367fc64b51350564c7acb4
SHA256

8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0
SHA512

b0e5556ad36a74ddfbbbfcd94f04635a614bc70d159aaab8fb540ecd0d823e14c2ed8687b95943cd992b434c37c9bfaa04db79c62f9d654b85616f45d275802a
SSDEEP

96:4rs7rOMGPGDupbGL7g8y23I6mUUWH78kVl6l2xzNt:oKrsPGDupKL7nNhVlk2T

Score

10^/10

purecrypter remcos remotehost downloader loader persistence rat

Malware Config

Extracted

Family

purecrypter

C2

https://onedrive.live.com/download?cid=A113DD34A0D77810&resid=A113DD34A0D77810%21121&authkey=APUVM8ZXD6Jpjd0

Extracted

Family

remcos

Botnet

RemoteHost

C2

top.thekillforabuse1.xyz:1068

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-R762FE
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
loader downloader purecrypter
Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Tqgxduxq = "\"C:\\Users\\Admin\\AppData\\Roaming\\Fnslyd\\Tqgxduxq.exe\""	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3848 set thread context of 3756	3848	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe	89

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
1628	powershell.exe
1628	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3848	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe
Token: SeDebugPrivilege	1628	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3848 wrote to memory of 1628	3848	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe	84
PID 3848 wrote to memory of 1628	3848	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe	84
PID 3848 wrote to memory of 1628	3848	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe	84
PID 3848 wrote to memory of 3756	3848	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe	89
PID 3848 wrote to memory of 3756	3848	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe	89
PID 3848 wrote to memory of 3756	3848	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe	89
PID 3848 wrote to memory of 3756	3848	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe	89
PID 3848 wrote to memory of 3756	3848	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe	89
PID 3848 wrote to memory of 3756	3848	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe	89
PID 3848 wrote to memory of 3756	3848	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe	89
PID 3848 wrote to memory of 3756	3848	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe	89
PID 3848 wrote to memory of 3756	3848	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe	89
PID 3848 wrote to memory of 3756	3848	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe	89
PID 3848 wrote to memory of 3756	3848	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe	89
PID 3848 wrote to memory of 3756	3848	8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe	89

C:\Users\Admin\AppData\Local\Temp\8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe
"C:\Users\Admin\AppData\Local\Temp\8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3848
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1628
- C:\Users\Admin\AppData\Local\Temp\8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe
  C:\Users\Admin\AppData\Local\Temp\8650dcaece1489d98b7f6782ae638de33797f2a1018f949ec270054f0893aea0.exe
  2⤵
  PID:3756

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

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

memory/1628-140-0x0000000007120000-0x000000000779A000-memory.dmp

Filesize
6.5MB

Download
memory/1628-136-0x0000000004D60000-0x0000000005388000-memory.dmp

Filesize
6.2MB

Download
memory/1628-135-0x00000000024F0000-0x0000000002526000-memory.dmp

Filesize
216KB

Download
memory/1628-139-0x0000000005AC0000-0x0000000005ADE000-memory.dmp

Filesize
120KB

Download
memory/1628-137-0x0000000005400000-0x0000000005466000-memory.dmp

Filesize
408KB

Download
memory/1628-141-0x0000000005FB0000-0x0000000005FCA000-memory.dmp

Filesize
104KB

Download
memory/1628-138-0x0000000005470000-0x00000000054D6000-memory.dmp

Filesize
408KB

Download
memory/3756-143-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3756-144-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3756-145-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3756-146-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3756-147-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3848-133-0x0000000007220000-0x0000000007242000-memory.dmp

Filesize
136KB

Download
memory/3848-132-0x0000000000ED0000-0x0000000000ED8000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads