remcos | 5a2314605b700448ff70f6c4d6ade0f1b58b189c6c84644aa2f1735ded273722

General

Target

a8d2835744bc534fde4454950d13a766.exe
Size

642KB
MD5

a8d2835744bc534fde4454950d13a766
SHA1

1ea8e8f5077be2d017d8c090652be895b47f8700
SHA256

5a2314605b700448ff70f6c4d6ade0f1b58b189c6c84644aa2f1735ded273722
SHA512

431bcfa7b6816e58030d3cc098e27767fc13a7b2af2df49f2ca1489614989cf121a90ea45b5aa1e58d5594229c58c95c3704c8f64e21bfc82eb9e06789e0447f

Score

10^/10

remcos sara rat

Malware Config

Extracted

Family

remcos

Version

2.7.0 Pro

Botnet

SARA

C2

sara.con-ip.com:2002

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-YV35QX
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
wikipedia;solitaire;

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Suspicious use of SetThreadContext 1 IoCs

Processes:

a8d2835744bc534fde4454950d13a766.exe

description pid process target process

PID 992 set thread context of 948 992 a8d2835744bc534fde4454950d13a766.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1500 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

a8d2835744bc534fde4454950d13a766.exe

pid process

992 a8d2835744bc534fde4454950d13a766.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a8d2835744bc534fde4454950d13a766.exe

description pid process

Token: SeDebugPrivilege 992 a8d2835744bc534fde4454950d13a766.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid process

948 RegSvcs.exe

description	pid	process	target process
PID 992 set thread context of 948	992	a8d2835744bc534fde4454950d13a766.exe	RegSvcs.exe

pid	process
1500	schtasks.exe

pid	process
992	a8d2835744bc534fde4454950d13a766.exe

description	pid	process
Token: SeDebugPrivilege	992	a8d2835744bc534fde4454950d13a766.exe

pid	process
948	RegSvcs.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

a8d2835744bc534fde4454950d13a766.exe

description	pid	process	target process
PID 992 wrote to memory of 1500	992	a8d2835744bc534fde4454950d13a766.exe	schtasks.exe
PID 992 wrote to memory of 1500	992	a8d2835744bc534fde4454950d13a766.exe	schtasks.exe
PID 992 wrote to memory of 1500	992	a8d2835744bc534fde4454950d13a766.exe	schtasks.exe
PID 992 wrote to memory of 1500	992	a8d2835744bc534fde4454950d13a766.exe	schtasks.exe
PID 992 wrote to memory of 948	992	a8d2835744bc534fde4454950d13a766.exe	RegSvcs.exe
PID 992 wrote to memory of 948	992	a8d2835744bc534fde4454950d13a766.exe	RegSvcs.exe
PID 992 wrote to memory of 948	992	a8d2835744bc534fde4454950d13a766.exe	RegSvcs.exe
PID 992 wrote to memory of 948	992	a8d2835744bc534fde4454950d13a766.exe	RegSvcs.exe
PID 992 wrote to memory of 948	992	a8d2835744bc534fde4454950d13a766.exe	RegSvcs.exe
PID 992 wrote to memory of 948	992	a8d2835744bc534fde4454950d13a766.exe	RegSvcs.exe
PID 992 wrote to memory of 948	992	a8d2835744bc534fde4454950d13a766.exe	RegSvcs.exe
PID 992 wrote to memory of 948	992	a8d2835744bc534fde4454950d13a766.exe	RegSvcs.exe
PID 992 wrote to memory of 948	992	a8d2835744bc534fde4454950d13a766.exe	RegSvcs.exe
PID 992 wrote to memory of 948	992	a8d2835744bc534fde4454950d13a766.exe	RegSvcs.exe
PID 992 wrote to memory of 948	992	a8d2835744bc534fde4454950d13a766.exe	RegSvcs.exe
PID 992 wrote to memory of 948	992	a8d2835744bc534fde4454950d13a766.exe	RegSvcs.exe
PID 992 wrote to memory of 948	992	a8d2835744bc534fde4454950d13a766.exe	RegSvcs.exe
PID 992 wrote to memory of 948	992	a8d2835744bc534fde4454950d13a766.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\a8d2835744bc534fde4454950d13a766.exe
"C:\Users\Admin\AppData\Local\Temp\a8d2835744bc534fde4454950d13a766.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:992

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UmpuopOOFeJJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6C2C.tmp"
2⤵
- Creates scheduled task(s)
PID:1500

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Suspicious use of SetWindowsHookEx
PID:948

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp6C2C.tmp
Filesize
1KB

MD5
80d3ae8885a65d5e4bdea9bdaef18442

SHA1
7ff73851141ed05d2657ce9a462c078aecf32e25

SHA256
e26e07a36946c02560eab617a5b951c43e23635af8de700050a9f9e8345d8e2f

SHA512
1eadfb6e58f7c941e1227120d5fdce895ef0871e278b655efe0eb971769d5a83d783ba38fb089df8456bef4e81f052145099dac9981b9af37d88aa7143a3b70a

Download Submit
memory/948-67-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/948-70-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/948-64-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/948-76-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/948-66-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/948-75-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/948-61-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/948-68-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/948-74-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/948-71-0x0000000000413E54-mapping.dmp

Download
memory/948-62-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/992-55-0x0000000075441000-0x0000000075443000-memory.dmp

Filesize
8KB

Download
memory/992-54-0x0000000000950000-0x00000000009F6000-memory.dmp

Filesize
664KB

Download
memory/992-57-0x0000000004400000-0x000000000446E000-memory.dmp

Filesize
440KB

Download
memory/992-56-0x0000000000420000-0x000000000042A000-memory.dmp

Filesize
40KB

Download
memory/992-58-0x0000000001F40000-0x0000000001F66000-memory.dmp

Filesize
152KB

Download
memory/1500-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads