remcos | e18f7d1e4381c956556250ca9be9e97377b602ebd0ab96b1c092682596a90fbf

General

Target

tmpc3f5lv8p.exe
Size

878KB
MD5

80cfda135a7c57063e8eb5a38660ae07
SHA1

212fdff074e62dae3a52a771fc86fdf39d0c0104
SHA256

e18f7d1e4381c956556250ca9be9e97377b602ebd0ab96b1c092682596a90fbf
SHA512

e3132b360e6e56f6e1e87530c88cb5594052d29fc13fc3f7b2777b81bf02c0c22fbb8cf81cbd55aae1551d4a59ffb9c4e69ba31a79499211c1de8703757ab691
SSDEEP

24576:zcB82Da9a3eu75lyvIgVIus7NZ4dUpoC1n1:469aOu736Ig0N/F11

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

www.projectusf.com:2404

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
gfh
mouse_option
false
mutex
Rmc-J91LMC
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2784	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2168 set thread context of 2116	2168	tmpc3f5lv8p.exe	33

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmpc3f5lv8p.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmpc3f5lv8p.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2752	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2784	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2784	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2116	tmpc3f5lv8p.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 2784	2168	tmpc3f5lv8p.exe	29
PID 2168 wrote to memory of 2784	2168	tmpc3f5lv8p.exe	29
PID 2168 wrote to memory of 2784	2168	tmpc3f5lv8p.exe	29
PID 2168 wrote to memory of 2784	2168	tmpc3f5lv8p.exe	29
PID 2168 wrote to memory of 2752	2168	tmpc3f5lv8p.exe	31
PID 2168 wrote to memory of 2752	2168	tmpc3f5lv8p.exe	31
PID 2168 wrote to memory of 2752	2168	tmpc3f5lv8p.exe	31
PID 2168 wrote to memory of 2752	2168	tmpc3f5lv8p.exe	31
PID 2168 wrote to memory of 2116	2168	tmpc3f5lv8p.exe	33
PID 2168 wrote to memory of 2116	2168	tmpc3f5lv8p.exe	33
PID 2168 wrote to memory of 2116	2168	tmpc3f5lv8p.exe	33
PID 2168 wrote to memory of 2116	2168	tmpc3f5lv8p.exe	33
PID 2168 wrote to memory of 2116	2168	tmpc3f5lv8p.exe	33
PID 2168 wrote to memory of 2116	2168	tmpc3f5lv8p.exe	33
PID 2168 wrote to memory of 2116	2168	tmpc3f5lv8p.exe	33
PID 2168 wrote to memory of 2116	2168	tmpc3f5lv8p.exe	33
PID 2168 wrote to memory of 2116	2168	tmpc3f5lv8p.exe	33
PID 2168 wrote to memory of 2116	2168	tmpc3f5lv8p.exe	33
PID 2168 wrote to memory of 2116	2168	tmpc3f5lv8p.exe	33
PID 2168 wrote to memory of 2116	2168	tmpc3f5lv8p.exe	33
PID 2168 wrote to memory of 2116	2168	tmpc3f5lv8p.exe	33

C:\Users\Admin\AppData\Local\Temp\tmpc3f5lv8p.exe
"C:\Users\Admin\AppData\Local\Temp\tmpc3f5lv8p.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\uEOzlLKIrzO.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2784
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uEOzlLKIrzO" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5C43.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2752
- C:\Users\Admin\AppData\Local\Temp\tmpc3f5lv8p.exe
  "C:\Users\Admin\AppData\Local\Temp\tmpc3f5lv8p.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2116

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\gfh\logs.dat

Filesize
144B

MD5
5f2f7a0ea34d653a933ee422d3f37598

SHA1
48d189e43751b607932b61936a4c54a2195f86b2

SHA256
43368c318a6a2d60b6abe76f7aa8ae41d731e801abd5ea941ff67d05e6079e4b

SHA512
f42cc2ba7ae9fb3e8e65fdb00e01da9fa74a98cdccf2166f54577949f350dc7cdc4e05c3bd69ebed0b6f6762cd1e3880a36f918fe81ce53aab60e6f6eea79cf7

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5C43.tmp

Filesize
1KB

MD5
6dc7d3e2512f31aad712b3acf94efbb1

SHA1
e54cfd8064376c429a723cb2e0793273e750cc4d

SHA256
813009353a77efa5ee5ca7d2a94319762b9020dd71a9438001e8fa1c8563f960

SHA512
b9d14af0f85512f10fb3e5402cdfe334c6d190b8a026982a78b2fd8523515c8288721b5299e5324b47e1cf4cc2d0e95c1354479ad19c6d5a363423a66b3cf6e9

Download Submit
memory/2116-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-66-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-65-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2116-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2168-0-0x0000000073C0E000-0x0000000073C0F000-memory.dmp

Filesize
4KB

Download
memory/2168-3-0x0000000004FB0000-0x000000000508A000-memory.dmp

Filesize
872KB

Download
memory/2168-34-0x0000000073C00000-0x00000000742EE000-memory.dmp

Filesize
6.9MB

Download
memory/2168-1-0x0000000000F70000-0x0000000001052000-memory.dmp

Filesize
904KB

Download
memory/2168-2-0x0000000073C00000-0x00000000742EE000-memory.dmp

Filesize
6.9MB

Download
memory/2168-7-0x0000000005480000-0x0000000005540000-memory.dmp

Filesize
768KB

Download
memory/2168-6-0x0000000073C00000-0x00000000742EE000-memory.dmp

Filesize
6.9MB

Download
memory/2168-5-0x0000000073C0E000-0x0000000073C0F000-memory.dmp

Filesize
4KB

Download
memory/2168-4-0x0000000000610000-0x0000000000620000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads