remcos | e0b4e1a48030555c2fc7fb252b593f9ca83a10d38acef92cb8a5de7aaa0c5376

General

Target

PAYMENT SWIFT COPY.js
Size

864KB
MD5

70b45b00b9017d22b15444bb24e0c1b6
SHA1

8d92c9e06d28dac40458cd6d7aa3fad7bc602ca5
SHA256

e0b4e1a48030555c2fc7fb252b593f9ca83a10d38acef92cb8a5de7aaa0c5376
SHA512

1fb69d0edb5e6e120f61235dc688cc9fc8d44cd7b4839acafa328d9060f5f894be511a3063ec2a9109d16f57cac752764612480c01828e8c345da1d44863b9d0
SSDEEP

12288:H9inxFqnNOmAA7h6E/Un20p24ov322THsp7E7zWH9Nk7xyvPDd6L4y238KF:H9WEMdp2tLk4wh

Score

10^/10

remcos vjw0rm remotehost persistence rat trojan worm

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

45.139.105.174:3111

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
true
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-XI5CH7
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
Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
Blocklisted process makes network request 5 IoCs

Processes:

wscript.exe

flow pid process

8 612 wscript.exe
10 612 wscript.exe
12 612 wscript.exe
15 612 wscript.exe
16 612 wscript.exe
Executes dropped EXE 2 IoCs

Processes:

01N200M.exeremcos.exe

pid process

1292 01N200M.exe
764 remcos.exe

flow	pid	process
8	612	wscript.exe
10	612	wscript.exe
12	612	wscript.exe
15	612	wscript.exe
16	612	wscript.exe

pid	process
1292	01N200M.exe
764	remcos.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\wBLYBgRUFJ.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\wBLYBgRUFJ.js	wscript.exe

Loads dropped DLL 2 IoCs

Processes:

cmd.exe

pid process

1248 cmd.exe
1248 cmd.exe

pid	process
1248	cmd.exe
1248	cmd.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

remcos.exe01N200M.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	remcos.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\	remcos.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	remcos.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\	01N200M.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	01N200M.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\	01N200M.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	01N200M.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\	remcos.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

remcos.exe

description pid process target process

PID 764 set thread context of 1724 764 remcos.exe iexplore.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

remcos.exe

pid process

764 remcos.exe

description	pid	process	target process
PID 764 set thread context of 1724	764	remcos.exe	iexplore.exe

pid	process
764	remcos.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

wscript.exe01N200M.exeWScript.execmd.exeremcos.exe

description	pid	process	target process
PID 1808 wrote to memory of 612	1808	wscript.exe	wscript.exe
PID 1808 wrote to memory of 612	1808	wscript.exe	wscript.exe
PID 1808 wrote to memory of 612	1808	wscript.exe	wscript.exe
PID 1808 wrote to memory of 1292	1808	wscript.exe	01N200M.exe
PID 1808 wrote to memory of 1292	1808	wscript.exe	01N200M.exe
PID 1808 wrote to memory of 1292	1808	wscript.exe	01N200M.exe
PID 1808 wrote to memory of 1292	1808	wscript.exe	01N200M.exe
PID 1292 wrote to memory of 432	1292	01N200M.exe	WScript.exe
PID 1292 wrote to memory of 432	1292	01N200M.exe	WScript.exe
PID 1292 wrote to memory of 432	1292	01N200M.exe	WScript.exe
PID 1292 wrote to memory of 432	1292	01N200M.exe	WScript.exe
PID 432 wrote to memory of 1248	432	WScript.exe	cmd.exe
PID 432 wrote to memory of 1248	432	WScript.exe	cmd.exe
PID 432 wrote to memory of 1248	432	WScript.exe	cmd.exe
PID 432 wrote to memory of 1248	432	WScript.exe	cmd.exe
PID 1248 wrote to memory of 764	1248	cmd.exe	remcos.exe
PID 1248 wrote to memory of 764	1248	cmd.exe	remcos.exe
PID 1248 wrote to memory of 764	1248	cmd.exe	remcos.exe
PID 1248 wrote to memory of 764	1248	cmd.exe	remcos.exe
PID 764 wrote to memory of 1724	764	remcos.exe	iexplore.exe
PID 764 wrote to memory of 1724	764	remcos.exe	iexplore.exe
PID 764 wrote to memory of 1724	764	remcos.exe	iexplore.exe
PID 764 wrote to memory of 1724	764	remcos.exe	iexplore.exe
PID 764 wrote to memory of 1724	764	remcos.exe	iexplore.exe

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\PAYMENT SWIFT COPY.js"
1⤵
- Suspicious use of WriteProcessMemory
PID:1808

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\wBLYBgRUFJ.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
PID:612

C:\Users\Admin\AppData\Roaming\01N200M.exe
"C:\Users\Admin\AppData\Roaming\01N200M.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1292

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ghrbmvjhodepnwshqhxlmfbqmqekii.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:432

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c "C:\ProgramData\Remcos\remcos.exe"
4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1248

C:\ProgramData\Remcos\remcos.exe
C:\ProgramData\Remcos\remcos.exe
5⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:764

\??\c:\program files (x86)\internet explorer\iexplore.exe
"c:\program files (x86)\internet explorer\iexplore.exe"
6⤵
PID:1724

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\ProgramData\Remcos\remcos.exe
Filesize
470KB

MD5
8f6f561ec65b393126f5b648f890e78a

SHA1
cea6ff88ba56fcfdcf5992b5b35ec2accbd234a3

SHA256
8acb8ff6a5565f9d8b56e2712858db04e577c53906c8045fa43bdf1e7669120a

SHA512
58e2544db5c4a9771d3cfef8364e80f4b0fb954f7ace2585fbb619d5b9de641eaac6956127d61d5808874633033d3c6d4322fb250a47a7dce5a3c8f2e7f8b27b

Download Submit
C:\ProgramData\Remcos\remcos.exe
Filesize
470KB

MD5
8f6f561ec65b393126f5b648f890e78a

SHA1
cea6ff88ba56fcfdcf5992b5b35ec2accbd234a3

SHA256
8acb8ff6a5565f9d8b56e2712858db04e577c53906c8045fa43bdf1e7669120a

SHA512
58e2544db5c4a9771d3cfef8364e80f4b0fb954f7ace2585fbb619d5b9de641eaac6956127d61d5808874633033d3c6d4322fb250a47a7dce5a3c8f2e7f8b27b

Download Submit
C:\Users\Admin\AppData\Local\Temp\ghrbmvjhodepnwshqhxlmfbqmqekii.vbs
Filesize
386B

MD5
1ec6289c6fd4c2ded6b2836ed28cbeb5

SHA1
c4e08195e6c640eb8860acc03fda1d649b4fe070

SHA256
6efdc40f9eb217f879607614e928b65bff759e424f3efb31faceb2a043c32dc2

SHA512
20bc46f4dee22f75f15c402c7c2eaee60fff7dd92548050585571dcbefd59485cc249c06bc3f1aac7a138e5ae67c0c3918b46ffa24c8b0f1b092e2f6b6e21288

Download Submit
C:\Users\Admin\AppData\Roaming\01N200M.exe
Filesize
470KB

MD5
8f6f561ec65b393126f5b648f890e78a

SHA1
cea6ff88ba56fcfdcf5992b5b35ec2accbd234a3

SHA256
8acb8ff6a5565f9d8b56e2712858db04e577c53906c8045fa43bdf1e7669120a

SHA512
58e2544db5c4a9771d3cfef8364e80f4b0fb954f7ace2585fbb619d5b9de641eaac6956127d61d5808874633033d3c6d4322fb250a47a7dce5a3c8f2e7f8b27b

Download Submit
C:\Users\Admin\AppData\Roaming\01N200M.exe
Filesize
470KB

MD5
8f6f561ec65b393126f5b648f890e78a

SHA1
cea6ff88ba56fcfdcf5992b5b35ec2accbd234a3

SHA256
8acb8ff6a5565f9d8b56e2712858db04e577c53906c8045fa43bdf1e7669120a

SHA512
58e2544db5c4a9771d3cfef8364e80f4b0fb954f7ace2585fbb619d5b9de641eaac6956127d61d5808874633033d3c6d4322fb250a47a7dce5a3c8f2e7f8b27b

Download Submit
C:\Users\Admin\AppData\Roaming\wBLYBgRUFJ.js
Filesize
10KB

MD5
dcd3971981a8d59077182f13d6f43f6f

SHA1
30119d3a59eb076e97a8001d8fe1f15ff1c1721f

SHA256
817f6a35953f7af8b3c4e17e026dc765f06dde5b094f0573edd282284e7db332

SHA512
cfd5edd4c25b182a03244eb6f94b4676a8abe556ef8b593a93ab369db97f7803081be40c2d02d8aec6da6bb9994e8742ce3f49d76ead34647c5a4ffe1c3e5674

Download Submit
\ProgramData\Remcos\remcos.exe
Filesize
470KB

MD5
8f6f561ec65b393126f5b648f890e78a

SHA1
cea6ff88ba56fcfdcf5992b5b35ec2accbd234a3

SHA256
8acb8ff6a5565f9d8b56e2712858db04e577c53906c8045fa43bdf1e7669120a

SHA512
58e2544db5c4a9771d3cfef8364e80f4b0fb954f7ace2585fbb619d5b9de641eaac6956127d61d5808874633033d3c6d4322fb250a47a7dce5a3c8f2e7f8b27b

Download Submit
\ProgramData\Remcos\remcos.exe
Filesize
470KB

MD5
8f6f561ec65b393126f5b648f890e78a

SHA1
cea6ff88ba56fcfdcf5992b5b35ec2accbd234a3

SHA256
8acb8ff6a5565f9d8b56e2712858db04e577c53906c8045fa43bdf1e7669120a

SHA512
58e2544db5c4a9771d3cfef8364e80f4b0fb954f7ace2585fbb619d5b9de641eaac6956127d61d5808874633033d3c6d4322fb250a47a7dce5a3c8f2e7f8b27b

Download Submit
memory/432-62-0x0000000000000000-mapping.dmp

Download
memory/612-55-0x0000000000000000-mapping.dmp

Download
memory/764-69-0x0000000000000000-mapping.dmp

Download
memory/1248-65-0x0000000000000000-mapping.dmp

Download
memory/1292-59-0x0000000076171000-0x0000000076173000-memory.dmp

Filesize
8KB

Download
memory/1292-57-0x0000000000000000-mapping.dmp

Download
memory/1724-72-0x00000000000B292E-mapping.dmp

Download
memory/1724-74-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download
memory/1724-75-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download
memory/1808-54-0x000007FEFC281000-0x000007FEFC283000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads