nanocore | e6930000e13aa3deafe16f78fcfca8e6276e18ba6a252b8045dfaf570f044328

Analysis

max time kernel
150s
max time network
158s
platform
windows10_x64
resource
win10v20210410
submitted
09/08/2021, 14:25

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General

Target
New Order No.0342.scr
Size 1.2MB
Sample210809-j2fdlephgx
SHA256 e6930000e13aa3deafe16f78fcfca8e6276e18ba6a252b8045dfaf570f044328
MD5 476691329c39995b54054d56b4d7eb51
SHA1 c3b8c48aabb26827184eb6705a2adee4a5301ab7
SHA512 8c7396ec639cfb2ab766805b12d90cc4b39193fe0ba9f9c0e979598fe85c2573d36e9609dc0abcd27376472f09f96b46e7e6698388f99881d8399060ff039d1e
MD5 SHA1 SHA512

Score

10^/10

nanocore remcos august$$$keylogger persistence rat spyware stealer trojan

Malware Config

Extracted

Family

remcos

Botnet

AUGUST$$$

mgc0147.hopto.org:2930

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-NJ9UQU
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
take_screenshot_title
notepad;solitaire;

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Executes dropped EXE 2 IoCs

pid	Process
2732	orcadwtsg.pif
4060	RegSvcs.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	orcadwtsg.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WindowsUpdate = "C:\\Users\\Admin\\24286637\\ORCADW~1.PIF C:\\Users\\Admin\\24286637\\duba.nik"	orcadwtsg.pif

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2732 set thread context of 4060	2732	orcadwtsg.pif	88

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
2732	orcadwtsg.pif
2732	orcadwtsg.pif

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4060	RegSvcs.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 3212 wrote to memory of 2732	3212	New Order No.0342.scr	76
PID 3212 wrote to memory of 2732	3212	New Order No.0342.scr	76
PID 3212 wrote to memory of 2732	3212	New Order No.0342.scr	76
PID 2732 wrote to memory of 3736	2732	orcadwtsg.pif	80
PID 2732 wrote to memory of 3736	2732	orcadwtsg.pif	80
PID 2732 wrote to memory of 3736	2732	orcadwtsg.pif	80
PID 2732 wrote to memory of 3956	2732	orcadwtsg.pif	82
PID 2732 wrote to memory of 3956	2732	orcadwtsg.pif	82
PID 2732 wrote to memory of 3956	2732	orcadwtsg.pif	82
PID 2732 wrote to memory of 2348	2732	orcadwtsg.pif	83
PID 2732 wrote to memory of 2348	2732	orcadwtsg.pif	83
PID 2732 wrote to memory of 2348	2732	orcadwtsg.pif	83
PID 2732 wrote to memory of 1856	2732	orcadwtsg.pif	84
PID 2732 wrote to memory of 1856	2732	orcadwtsg.pif	84
PID 2732 wrote to memory of 1856	2732	orcadwtsg.pif	84
PID 2732 wrote to memory of 2480	2732	orcadwtsg.pif	85
PID 2732 wrote to memory of 2480	2732	orcadwtsg.pif	85
PID 2732 wrote to memory of 2480	2732	orcadwtsg.pif	85
PID 2732 wrote to memory of 808	2732	orcadwtsg.pif	86
PID 2732 wrote to memory of 808	2732	orcadwtsg.pif	86
PID 2732 wrote to memory of 808	2732	orcadwtsg.pif	86
PID 2732 wrote to memory of 2716	2732	orcadwtsg.pif	87
PID 2732 wrote to memory of 2716	2732	orcadwtsg.pif	87
PID 2732 wrote to memory of 2716	2732	orcadwtsg.pif	87
PID 2732 wrote to memory of 4060	2732	orcadwtsg.pif	88
PID 2732 wrote to memory of 4060	2732	orcadwtsg.pif	88
PID 2732 wrote to memory of 4060	2732	orcadwtsg.pif	88
PID 2732 wrote to memory of 4060	2732	orcadwtsg.pif	88
PID 2732 wrote to memory of 4060	2732	orcadwtsg.pif	88

C:\Users\Admin\AppData\Local\Temp\New Order No.0342.scr
"C:\Users\Admin\AppData\Local\Temp\New Order No.0342.scr" /S
1⤵
- Suspicious use of WriteProcessMemory
PID:3212
- C:\Users\Admin\24286637\orcadwtsg.pif
  "C:\Users\Admin\24286637\orcadwtsg.pif" duba.nik
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2732
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    PID:3736
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    PID:3956
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    PID:2348
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    PID:1856
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    PID:2480
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    PID:808
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    PID:2716
- - C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    PID:4060

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4060-126-0x0000000001200000-0x000000000192F000-memory.dmp

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memory/4060-130-0x0000000001200000-0x000000000192F000-memory.dmp

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