remcos | 078422c6e4abfcec4afb4cdcee22f4353fbab4a1fc4b2ae611cdc6b9d05517c2

Analysis

max time kernel
149s
max time network
146s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
18/10/2022, 15:37

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General

Target
Multipack Supplier order 2210018.exe
Size 6KB
Sample221018-s2g4bagcg7
SHA256 078422c6e4abfcec4afb4cdcee22f4353fbab4a1fc4b2ae611cdc6b9d05517c2
MD5 a907411e684576cf5bbfdbcc15339a4c
SHA1 25d5d85c156bf61e831e43d8e3dd85e67bd7b00b
SHA512 c09a48d5b80229e10137f1aca7066dd41334584cd4e82945fd8acb13a937dbbbdd0c347780ac2b85fc7bedf1d195db09d7d2b43882c265c068b7f797c959e2e3
SSDEEP 96:2zpyXloeMvXkePnwvlbJD+SD5IEdVY6086RzNt:24XgPkUwNbpP5rox
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos 50505 persistence rat

Malware Config

Extracted

Family

remcos

Botnet

50505

41.216.183.96:50505

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-W7RE6J
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

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

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-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\Gupgux = "\"C:\\Users\\Admin\\AppData\\Roaming\\Wfdlihryfiu\\Gupgux.exe\""	Multipack Supplier order 2210018.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1584 set thread context of 2000	1584	Multipack Supplier order 2210018.exe	29

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
900	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1584	Multipack Supplier order 2210018.exe
Token: SeDebugPrivilege	900	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1584 wrote to memory of 900	1584	Multipack Supplier order 2210018.exe	26
PID 1584 wrote to memory of 900	1584	Multipack Supplier order 2210018.exe	26
PID 1584 wrote to memory of 900	1584	Multipack Supplier order 2210018.exe	26
PID 1584 wrote to memory of 900	1584	Multipack Supplier order 2210018.exe	26
PID 1584 wrote to memory of 2000	1584	Multipack Supplier order 2210018.exe	29
PID 1584 wrote to memory of 2000	1584	Multipack Supplier order 2210018.exe	29
PID 1584 wrote to memory of 2000	1584	Multipack Supplier order 2210018.exe	29
PID 1584 wrote to memory of 2000	1584	Multipack Supplier order 2210018.exe	29
PID 1584 wrote to memory of 2000	1584	Multipack Supplier order 2210018.exe	29
PID 1584 wrote to memory of 2000	1584	Multipack Supplier order 2210018.exe	29
PID 1584 wrote to memory of 2000	1584	Multipack Supplier order 2210018.exe	29
PID 1584 wrote to memory of 2000	1584	Multipack Supplier order 2210018.exe	29
PID 1584 wrote to memory of 2000	1584	Multipack Supplier order 2210018.exe	29
PID 1584 wrote to memory of 2000	1584	Multipack Supplier order 2210018.exe	29
PID 1584 wrote to memory of 2000	1584	Multipack Supplier order 2210018.exe	29
PID 1584 wrote to memory of 2000	1584	Multipack Supplier order 2210018.exe	29
PID 1584 wrote to memory of 2000	1584	Multipack Supplier order 2210018.exe	29

C:\Users\Admin\AppData\Local\Temp\Multipack Supplier order 2210018.exe
"C:\Users\Admin\AppData\Local\Temp\Multipack Supplier order 2210018.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1584
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQA2AA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:900
- C:\Users\Admin\AppData\Local\Temp\Multipack Supplier order 2210018.exe
  "C:\Users\Admin\AppData\Local\Temp\Multipack Supplier order 2210018.exe"
  2⤵
  PID:2000

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

Replay Monitor

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Downloads

memory/900-60-0x000000006EF70000-0x000000006F51B000-memory.dmp

Download

memory/900-61-0x000000006EF70000-0x000000006F51B000-memory.dmp

Download

memory/900-62-0x000000006EF70000-0x000000006F51B000-memory.dmp

Download

memory/1584-54-0x00000000001A0000-0x00000000001A8000-memory.dmp

Download

memory/1584-55-0x0000000074BB1000-0x0000000074BB3000-memory.dmp

Download

memory/1584-56-0x0000000005070000-0x000000000516A000-memory.dmp

Download

memory/1584-57-0x0000000004DB0000-0x0000000004E42000-memory.dmp

Download

memory/2000-66-0x0000000000400000-0x000000000047F000-memory.dmp

Download

memory/2000-64-0x0000000000400000-0x000000000047F000-memory.dmp

Download

memory/2000-63-0x0000000000400000-0x000000000047F000-memory.dmp

Download

memory/2000-68-0x0000000000400000-0x000000000047F000-memory.dmp

Download

memory/2000-69-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/2000-70-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/2000-71-0x0000000000400000-0x000000000047F000-memory.dmp

Download

memory/2000-73-0x0000000000400000-0x000000000047F000-memory.dmp

Download

memory/2000-75-0x0000000000400000-0x000000000047F000-memory.dmp

Download

memory/2000-79-0x0000000000400000-0x000000000047F000-memory.dmp

Download

memory/2000-80-0x0000000000400000-0x000000000047F000-memory.dmp

Download

memory/2000-81-0x0000000000400000-0x000000000047F000-memory.dmp

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