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
Executes dropped EXE 6 IoCs

Processes:

fsd.exefsd.exefsd.exefsd.exefsd.exefsd.exe

pid process

284 fsd.exe
1384 fsd.exe
1436 fsd.exe
112 fsd.exe
1380 fsd.exe
1336 fsd.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

2416 cmd.exe

pid	process
284	fsd.exe
1384	fsd.exe
1436	fsd.exe
112	fsd.exe
1380	fsd.exe
1336	fsd.exe

pid	process
2416	cmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\ioa = "\"C:\\Users\\Admin\\AppData\\Roaming\\fsd.exe\""	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe

description	pid	process	target process
PID 2092 set thread context of 2612	2092	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.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

2152 PING.EXE
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

fsd.exe

pid process

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

Processes:

fsd.exe

description pid process

Token: SeDebugPrivilege 284 fsd.exe

pid	process
2152	PING.EXE

pid	process
284	fsd.exe
284	fsd.exe
284	fsd.exe
284	fsd.exe
284	fsd.exe

description	pid	process
Token: SeDebugPrivilege	284	fsd.exe

Suspicious use of WriteProcessMemory 45 IoCs

Processes:

ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exeea7b951cd02856e10eb2316f141c5107_JaffaCakes118.execmd.exefsd.exe

description	pid	process	target process
PID 2092 wrote to memory of 2612	2092	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 2092 wrote to memory of 2612	2092	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 2092 wrote to memory of 2612	2092	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 2092 wrote to memory of 2612	2092	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 2092 wrote to memory of 2612	2092	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 2092 wrote to memory of 2612	2092	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 2092 wrote to memory of 2612	2092	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 2092 wrote to memory of 2612	2092	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 2092 wrote to memory of 2612	2092	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 2092 wrote to memory of 2612	2092	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
PID 2612 wrote to memory of 2416	2612	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	cmd.exe
PID 2612 wrote to memory of 2416	2612	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	cmd.exe
PID 2612 wrote to memory of 2416	2612	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	cmd.exe
PID 2612 wrote to memory of 2416	2612	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	cmd.exe
PID 2612 wrote to memory of 2416	2612	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	cmd.exe
PID 2612 wrote to memory of 2416	2612	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	cmd.exe
PID 2612 wrote to memory of 2416	2612	ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe	cmd.exe
PID 2416 wrote to memory of 2152	2416	cmd.exe	PING.EXE
PID 2416 wrote to memory of 2152	2416	cmd.exe	PING.EXE
PID 2416 wrote to memory of 2152	2416	cmd.exe	PING.EXE
PID 2416 wrote to memory of 2152	2416	cmd.exe	PING.EXE
PID 2416 wrote to memory of 284	2416	cmd.exe	fsd.exe
PID 2416 wrote to memory of 284	2416	cmd.exe	fsd.exe
PID 2416 wrote to memory of 284	2416	cmd.exe	fsd.exe
PID 2416 wrote to memory of 284	2416	cmd.exe	fsd.exe
PID 284 wrote to memory of 1384	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 1384	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 1384	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 1384	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 1436	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 1436	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 1436	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 1436	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 1380	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 1380	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 1380	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 1380	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 112	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 112	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 112	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 112	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 1336	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 1336	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 1336	284	fsd.exe	fsd.exe
PID 284 wrote to memory of 1336	284	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:2092

C:\Users\Admin\AppData\Local\Temp\ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ea7b951cd02856e10eb2316f141c5107_JaffaCakes118.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2612

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2416

C:\Windows\SysWOW64\PING.EXE
PING 127.0.0.1 -n 2
4⤵
- Runs ping.exe
PID:2152

C:\Users\Admin\AppData\Roaming\fsd.exe
"C:\Users\Admin\AppData\Roaming\fsd.exe"
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:284

C:\Users\Admin\AppData\Roaming\fsd.exe
"C:\Users\Admin\AppData\Roaming\fsd.exe"
5⤵
- Executes dropped EXE
PID:1384

C:\Users\Admin\AppData\Roaming\fsd.exe
"C:\Users\Admin\AppData\Roaming\fsd.exe"
5⤵
- Executes dropped EXE
PID:1436

C:\Users\Admin\AppData\Roaming\fsd.exe
"C:\Users\Admin\AppData\Roaming\fsd.exe"
5⤵
- Executes dropped EXE
PID:1380

C:\Users\Admin\AppData\Roaming\fsd.exe
"C:\Users\Admin\AppData\Roaming\fsd.exe"
5⤵
- Executes dropped EXE
PID:112

C:\Users\Admin\AppData\Roaming\fsd.exe
"C:\Users\Admin\AppData\Roaming\fsd.exe"
5⤵
- Executes dropped EXE
PID:1336

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

System Information Discovery

1

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

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

MD5
0ba9b63278e8f4ffce5472db6801fe6e

SHA1
a547eb08912c77ceb378326c635b53f1bd32f91b

SHA256
50f2f595594020af4a3aa65fb42b0b999f28869c2bf44b4dedbc1bfd683a167f

SHA512
7a2b354c9ce47d9e7912797ab0b1d78b514266adca3c376d3344b6cd6a0a1f6d9fe4784153013ca67dd93bf3daf22a09ee359668ce2e09449bc7c71b882d07d2

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

MD5
ea7b951cd02856e10eb2316f141c5107

SHA1
5700aeb775258508491cd7bc735adaee26da67be

SHA256
ca9e376c93bcc57e658566cdb0b0f68d6417a6e6e69705f5c9fa883d5c82282f

SHA512
570bacaf2e398f31736936350542151cd3cd5e785de5d3a750ceab2ac455b50c22af85042496a846bb18224257fbd7b7b4c02800a04638da0fee1d84415fd15c

Download Submit
memory/284-38-0x00000000070E0000-0x0000000007120000-memory.dmp

Filesize
256KB

Download
memory/284-34-0x00000000003A0000-0x00000000004A8000-memory.dmp

Filesize
1.0MB

Download
memory/284-35-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/284-36-0x00000000070E0000-0x0000000007120000-memory.dmp

Filesize
256KB

Download
memory/284-37-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/284-44-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/2092-4-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/2092-6-0x0000000007C10000-0x0000000007CCC000-memory.dmp

Filesize
752KB

Download
memory/2092-5-0x0000000004AE0000-0x0000000004B20000-memory.dmp

Filesize
256KB

Download
memory/2092-3-0x00000000003C0000-0x00000000003CA000-memory.dmp

Filesize
40KB

Download
memory/2092-0-0x0000000000D30000-0x0000000000E38000-memory.dmp

Filesize
1.0MB

Download
memory/2092-2-0x0000000004AE0000-0x0000000004B20000-memory.dmp

Filesize
256KB

Download
memory/2092-17-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/2092-1-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/2612-11-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2612-20-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2612-29-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2612-16-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2612-14-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2612-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2612-10-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2612-9-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2612-8-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2612-7-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads