nanocore | e6930000e13aa3deafe16f78fcfca8e6276e18ba6a252b8045dfaf570f044328

Analysis

max time kernel
150s
max time network
191s
platform
windows7_x64
resource
win7v20210410
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

Version

3.2.0 Pro

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
1960	orcadwtsg.pif
1672	RegSvcs.exe

Loads dropped DLL 5 IoCs

pid	Process
1304	New Order No.0342.scr
1304	New Order No.0342.scr
1304	New Order No.0342.scr
1304	New Order No.0342.scr
1960	orcadwtsg.pif

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 1960 set thread context of 1672	1960	orcadwtsg.pif	37

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 1 IoCs

pid	Process
1960	orcadwtsg.pif

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1672	RegSvcs.exe

Suspicious use of WriteProcessMemory 41 IoCs

description	pid	Process	procid_target
PID 1304 wrote to memory of 1960	1304	New Order No.0342.scr	26
PID 1304 wrote to memory of 1960	1304	New Order No.0342.scr	26
PID 1304 wrote to memory of 1960	1304	New Order No.0342.scr	26
PID 1304 wrote to memory of 1960	1304	New Order No.0342.scr	26
PID 1960 wrote to memory of 268	1960	orcadwtsg.pif	30
PID 1960 wrote to memory of 268	1960	orcadwtsg.pif	30
PID 1960 wrote to memory of 268	1960	orcadwtsg.pif	30
PID 1960 wrote to memory of 268	1960	orcadwtsg.pif	30
PID 1960 wrote to memory of 1148	1960	orcadwtsg.pif	31
PID 1960 wrote to memory of 1148	1960	orcadwtsg.pif	31
PID 1960 wrote to memory of 1148	1960	orcadwtsg.pif	31
PID 1960 wrote to memory of 1148	1960	orcadwtsg.pif	31
PID 1960 wrote to memory of 944	1960	orcadwtsg.pif	32
PID 1960 wrote to memory of 944	1960	orcadwtsg.pif	32
PID 1960 wrote to memory of 944	1960	orcadwtsg.pif	32
PID 1960 wrote to memory of 944	1960	orcadwtsg.pif	32
PID 1960 wrote to memory of 300	1960	orcadwtsg.pif	33
PID 1960 wrote to memory of 300	1960	orcadwtsg.pif	33
PID 1960 wrote to memory of 300	1960	orcadwtsg.pif	33
PID 1960 wrote to memory of 300	1960	orcadwtsg.pif	33
PID 1960 wrote to memory of 1880	1960	orcadwtsg.pif	34
PID 1960 wrote to memory of 1880	1960	orcadwtsg.pif	34
PID 1960 wrote to memory of 1880	1960	orcadwtsg.pif	34
PID 1960 wrote to memory of 1880	1960	orcadwtsg.pif	34
PID 1960 wrote to memory of 528	1960	orcadwtsg.pif	35
PID 1960 wrote to memory of 528	1960	orcadwtsg.pif	35
PID 1960 wrote to memory of 528	1960	orcadwtsg.pif	35
PID 1960 wrote to memory of 528	1960	orcadwtsg.pif	35
PID 1960 wrote to memory of 292	1960	orcadwtsg.pif	36
PID 1960 wrote to memory of 292	1960	orcadwtsg.pif	36
PID 1960 wrote to memory of 292	1960	orcadwtsg.pif	36
PID 1960 wrote to memory of 292	1960	orcadwtsg.pif	36
PID 1960 wrote to memory of 1672	1960	orcadwtsg.pif	37
PID 1960 wrote to memory of 1672	1960	orcadwtsg.pif	37
PID 1960 wrote to memory of 1672	1960	orcadwtsg.pif	37
PID 1960 wrote to memory of 1672	1960	orcadwtsg.pif	37
PID 1960 wrote to memory of 1672	1960	orcadwtsg.pif	37
PID 1960 wrote to memory of 1672	1960	orcadwtsg.pif	37
PID 1960 wrote to memory of 1672	1960	orcadwtsg.pif	37
PID 1960 wrote to memory of 1672	1960	orcadwtsg.pif	37
PID 1960 wrote to memory of 1672	1960	orcadwtsg.pif	37

C:\Users\Admin\AppData\Local\Temp\New Order No.0342.scr
"C:\Users\Admin\AppData\Local\Temp\New Order No.0342.scr" /S
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1304
- C:\Users\Admin\24286637\orcadwtsg.pif
  "C:\Users\Admin\24286637\orcadwtsg.pif" duba.nik
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1960
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    PID:268
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    PID:1148
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    PID:944
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    PID:300
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    PID:1880
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    PID:528
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    PID:292
- - 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:1672

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/1304-60-0x0000000075551000-0x0000000075553000-memory.dmp

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memory/1672-78-0x00000000002D0000-0x00000000008C2000-memory.dmp

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memory/1672-82-0x00000000002D0000-0x00000000008C2000-memory.dmp

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