remcos | ca9e376c93bcc57e658566cdb0b0f68d6417a6e6e69705f5c9fa883d5c82282f

General

Target

ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
Size

1.0MB
MD5

ea7b951cd02856e10eb2316f141c5107
SHA1

5700aeb775258508491cd7bc735adaee26da67be
SHA256

ca9e376c93bcc57e658566cdb0b0f68d6417a6e6e69705f5c9fa883d5c82282f
SHA512

570bacaf2e398f31736936350542151cd3cd5e785de5d3a750ceab2ac455b50c22af85042496a846bb18224257fbd7b7b4c02800a04638da0fee1d84415fd15c
SSDEEP

12288:FthatZrYWF1dLSBr7QlU2+BbkB1/L8R4jGjeEPMIthO/W1Ad9S2NVvz6Sgq7qrcc:Ft8tuWFOBrc62is8iKXOSQTEcAS

Score

10^/10

remcos host persistence rat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

gdyhjjdhbvxgsfe.gotdns.ch:1996

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
fsd.exe
delete_file
false
hide_file
true
hide_keylog_file
true
install_flag
true
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_path
%AppData%
mouse_option
false
mutex
remcos_lrqrjhqsyqtzudh
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
startup_value
ioa
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe

Executes dropped EXE 3 IoCs

Processes:

fsd.exefsd.exefsd.exe

pid process

880 fsd.exe
464 fsd.exe
1048 fsd.exe

pid	process
880	fsd.exe
464	fsd.exe
1048	fsd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

fsd.exeea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ioa = "\"C:\\Users\\Admin\\AppData\\Roaming\\fsd.exe\""	fsd.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ioa = "\"C:\\Users\\Admin\\AppData\\Roaming\\fsd.exe\""	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exefsd.exe

description	pid	process	target process
PID 4516 set thread context of 1228	4516	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 880 set thread context of 1048	880	fsd.exe	fsd.exe

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

System Information Discovery
T1082
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3492 PING.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

fsd.exe

pid process

880 fsd.exe
880 fsd.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

fsd.exe

description pid process

Token: SeDebugPrivilege 880 fsd.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

fsd.exe

pid process

1048 fsd.exe

pid	process
3492	PING.EXE

pid	process
880	fsd.exe
880	fsd.exe

description	pid	process
Token: SeDebugPrivilege	880	fsd.exe

pid	process
1048	fsd.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exeea7b951cd02856e10eb2316f141c5107_JaffaCakes118.execmd.exefsd.exe

description	pid	process	target process
PID 4516 wrote to memory of 1228	4516	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 4516 wrote to memory of 1228	4516	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 4516 wrote to memory of 1228	4516	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 4516 wrote to memory of 1228	4516	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 4516 wrote to memory of 1228	4516	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 4516 wrote to memory of 1228	4516	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 4516 wrote to memory of 1228	4516	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 4516 wrote to memory of 1228	4516	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 4516 wrote to memory of 1228	4516	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 1228 wrote to memory of 4168	1228	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	cmd.exe
PID 1228 wrote to memory of 4168	1228	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	cmd.exe
PID 1228 wrote to memory of 4168	1228	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	cmd.exe
PID 4168 wrote to memory of 3492	4168	cmd.exe	PING.EXE
PID 4168 wrote to memory of 3492	4168	cmd.exe	PING.EXE
PID 4168 wrote to memory of 3492	4168	cmd.exe	PING.EXE
PID 4168 wrote to memory of 880	4168	cmd.exe	fsd.exe
PID 4168 wrote to memory of 880	4168	cmd.exe	fsd.exe
PID 4168 wrote to memory of 880	4168	cmd.exe	fsd.exe
PID 880 wrote to memory of 464	880	fsd.exe	fsd.exe
PID 880 wrote to memory of 464	880	fsd.exe	fsd.exe
PID 880 wrote to memory of 464	880	fsd.exe	fsd.exe
PID 880 wrote to memory of 1048	880	fsd.exe	fsd.exe
PID 880 wrote to memory of 1048	880	fsd.exe	fsd.exe
PID 880 wrote to memory of 1048	880	fsd.exe	fsd.exe
PID 880 wrote to memory of 1048	880	fsd.exe	fsd.exe
PID 880 wrote to memory of 1048	880	fsd.exe	fsd.exe
PID 880 wrote to memory of 1048	880	fsd.exe	fsd.exe
PID 880 wrote to memory of 1048	880	fsd.exe	fsd.exe
PID 880 wrote to memory of 1048	880	fsd.exe	fsd.exe
PID 880 wrote to memory of 1048	880	fsd.exe	fsd.exe

C:\Users\Admin\AppData\Local\Temp\ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4516

C:\Users\Admin\AppData\Local\Temp\ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1228

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "
3⤵
- Suspicious use of WriteProcessMemory
PID:4168

C:\Windows\SysWOW64\PING.EXE
PING 127.0.0.1 -n 2
4⤵
- Runs ping.exe
PID:3492

C:\Users\Admin\AppData\Roaming\fsd.exe
"C:\Users\Admin\AppData\Roaming\fsd.exe"
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:880

C:\Users\Admin\AppData\Roaming\fsd.exe
"C:\Users\Admin\AppData\Roaming\fsd.exe"
5⤵
- Executes dropped EXE
PID:464

C:\Users\Admin\AppData\Roaming\fsd.exe
"C:\Users\Admin\AppData\Roaming\fsd.exe"
5⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
PID:1048

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\install.bat
Filesize
89B

MD5
0ba9b63278e8f4ffce5472db6801fe6e

SHA1
a547eb08912c77ceb378326c635b53f1bd32f91b

SHA256
50f2f595594020af4a3aa65fb42b0b999f28869c2bf44b4dedbc1bfd683a167f

SHA512
7a2b354c9ce47d9e7912797ab0b1d78b514266adca3c376d3344b6cd6a0a1f6d9fe4784153013ca67dd93bf3daf22a09ee359668ce2e09449bc7c71b882d07d2

Download Submit
C:\Users\Admin\AppData\Roaming\fsd.exe
Filesize
1.0MB

MD5
ea7b951cd02856e10eb2316f141c5107

SHA1
5700aeb775258508491cd7bc735adaee26da67be

SHA256
ca9e376c93bcc57e658566cdb0b0f68d6417a6e6e69705f5c9fa883d5c82282f

SHA512
570bacaf2e398f31736936350542151cd3cd5e785de5d3a750ceab2ac455b50c22af85042496a846bb18224257fbd7b7b4c02800a04638da0fee1d84415fd15c

Download Submit
memory/880-30-0x00000000075F0000-0x0000000007600000-memory.dmp

Filesize
64KB

Download
memory/880-38-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/880-29-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/880-28-0x00000000075F0000-0x0000000007600000-memory.dmp

Filesize
64KB

Download
memory/880-27-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/1048-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1048-36-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1048-41-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1048-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1228-22-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1228-11-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1228-14-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1228-19-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4516-6-0x0000000008890000-0x000000000892C000-memory.dmp

Filesize
624KB

Download
memory/4516-15-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/4516-10-0x0000000008D70000-0x0000000008E2C000-memory.dmp

Filesize
752KB

Download
memory/4516-9-0x00000000070E0000-0x00000000070F0000-memory.dmp

Filesize
64KB

Download
memory/4516-8-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/4516-7-0x0000000002690000-0x000000000269A000-memory.dmp

Filesize
40KB

Download
memory/4516-0-0x0000000000180000-0x0000000000288000-memory.dmp

Filesize
1.0MB

Download
memory/4516-5-0x0000000007130000-0x000000000713A000-memory.dmp

Filesize
40KB

Download
memory/4516-4-0x00000000070E0000-0x00000000070F0000-memory.dmp

Filesize
64KB

Download
memory/4516-3-0x0000000007150000-0x00000000071E2000-memory.dmp

Filesize
584KB

Download
memory/4516-2-0x0000000007660000-0x0000000007C04000-memory.dmp

Filesize
5.6MB

Download
memory/4516-1-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads