remcos | 70deba92a46f6f3913b10be9eeacfe0c0b89177d4ca6041012bc446ca9bd0acf

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
05-10-2022 16:28

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General

Target

Scanned PO N402201321.exe
Size

1.1MB
MD5

be5a3dcd8ac544cc9a5eac17daf5d813
SHA1

aa1317d65deca8bd330018e85000069288ce6afc
SHA256

70deba92a46f6f3913b10be9eeacfe0c0b89177d4ca6041012bc446ca9bd0acf
SHA512

77f0f34476d41108d2bb8d1009c08eb61d906cd13aad9bc3f397ad9d6d96a5f8bcd55181c90b231c707b71a175d531a952649bed9f302d658fb0338754ac5909
SSDEEP

24576:QSbKwOzzwHsOzj4j85M1hUQDAxzJX44ws8:QSnJsOzj4jGM1aK4FXys

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

harjahwool.ddnsfree.com:8372

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-EGNT8M
screenshot_crypt
true
screenshot_flag
true
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\ganmuio.exe,"	reg.exe

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Executes dropped EXE 3 IoCs

Processes:

ganmuio.exegreUgKja.exegreUgKja.exe

pid process

1508 ganmuio.exe
1632 greUgKja.exe
1520 greUgKja.exe
Loads dropped DLL 3 IoCs

Processes:

cmd.exeganmuio.exegreUgKja.exe

pid process

1808 cmd.exe
1508 ganmuio.exe
1632 greUgKja.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ganmuio.exe

description pid process target process

PID 1508 set thread context of 1484 1508 ganmuio.exe AddInProcess32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery
T1018

Processes:

PING.EXEPING.EXEPING.EXE

pid process

864 PING.EXE
1756 PING.EXE
1744 PING.EXE

pid	process
1508	ganmuio.exe
1632	greUgKja.exe
1520	greUgKja.exe

pid	process
1808	cmd.exe
1508	ganmuio.exe
1632	greUgKja.exe

description	pid	process	target process
PID 1508 set thread context of 1484	1508	ganmuio.exe	AddInProcess32.exe

pid	process
864	PING.EXE
1756	PING.EXE
1744	PING.EXE

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

Scanned PO N402201321.exeganmuio.exegreUgKja.exegreUgKja.exe

pid	process
1672	Scanned PO N402201321.exe
1672	Scanned PO N402201321.exe
1672	Scanned PO N402201321.exe
1508	ganmuio.exe
1508	ganmuio.exe
1508	ganmuio.exe
1632	greUgKja.exe
1520	greUgKja.exe
1520	greUgKja.exe
1520	greUgKja.exe
1508	ganmuio.exe
1508	ganmuio.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

Scanned PO N402201321.exeganmuio.exeAUDIODG.EXEgreUgKja.exegreUgKja.exe

description	pid	process
Token: SeDebugPrivilege	1672	Scanned PO N402201321.exe
Token: SeDebugPrivilege	1508	ganmuio.exe
Token: 33	1452	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1452	AUDIODG.EXE
Token: 33	1452	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1452	AUDIODG.EXE
Token: SeDebugPrivilege	1632	greUgKja.exe
Token: SeDebugPrivilege	1520	greUgKja.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

AddInProcess32.exe

pid process

1484 AddInProcess32.exe

pid	process
1484	AddInProcess32.exe

Suspicious use of WriteProcessMemory 49 IoCs

Processes:

Scanned PO N402201321.execmd.execmd.exeganmuio.exegreUgKja.exe

description	pid	process	target process
PID 1672 wrote to memory of 1640	1672	Scanned PO N402201321.exe	cmd.exe
PID 1672 wrote to memory of 1640	1672	Scanned PO N402201321.exe	cmd.exe
PID 1672 wrote to memory of 1640	1672	Scanned PO N402201321.exe	cmd.exe
PID 1672 wrote to memory of 1640	1672	Scanned PO N402201321.exe	cmd.exe
PID 1640 wrote to memory of 864	1640	cmd.exe	PING.EXE
PID 1640 wrote to memory of 864	1640	cmd.exe	PING.EXE
PID 1640 wrote to memory of 864	1640	cmd.exe	PING.EXE
PID 1640 wrote to memory of 864	1640	cmd.exe	PING.EXE
PID 1672 wrote to memory of 1808	1672	Scanned PO N402201321.exe	cmd.exe
PID 1672 wrote to memory of 1808	1672	Scanned PO N402201321.exe	cmd.exe
PID 1672 wrote to memory of 1808	1672	Scanned PO N402201321.exe	cmd.exe
PID 1672 wrote to memory of 1808	1672	Scanned PO N402201321.exe	cmd.exe
PID 1808 wrote to memory of 1756	1808	cmd.exe	PING.EXE
PID 1808 wrote to memory of 1756	1808	cmd.exe	PING.EXE
PID 1808 wrote to memory of 1756	1808	cmd.exe	PING.EXE
PID 1808 wrote to memory of 1756	1808	cmd.exe	PING.EXE
PID 1640 wrote to memory of 1156	1640	cmd.exe	reg.exe
PID 1640 wrote to memory of 1156	1640	cmd.exe	reg.exe
PID 1640 wrote to memory of 1156	1640	cmd.exe	reg.exe
PID 1640 wrote to memory of 1156	1640	cmd.exe	reg.exe
PID 1808 wrote to memory of 1744	1808	cmd.exe	PING.EXE
PID 1808 wrote to memory of 1744	1808	cmd.exe	PING.EXE
PID 1808 wrote to memory of 1744	1808	cmd.exe	PING.EXE
PID 1808 wrote to memory of 1744	1808	cmd.exe	PING.EXE
PID 1808 wrote to memory of 1508	1808	cmd.exe	ganmuio.exe
PID 1808 wrote to memory of 1508	1808	cmd.exe	ganmuio.exe
PID 1808 wrote to memory of 1508	1808	cmd.exe	ganmuio.exe
PID 1808 wrote to memory of 1508	1808	cmd.exe	ganmuio.exe
PID 1508 wrote to memory of 1484	1508	ganmuio.exe	AddInProcess32.exe
PID 1508 wrote to memory of 1484	1508	ganmuio.exe	AddInProcess32.exe
PID 1508 wrote to memory of 1484	1508	ganmuio.exe	AddInProcess32.exe
PID 1508 wrote to memory of 1484	1508	ganmuio.exe	AddInProcess32.exe
PID 1508 wrote to memory of 1484	1508	ganmuio.exe	AddInProcess32.exe
PID 1508 wrote to memory of 1484	1508	ganmuio.exe	AddInProcess32.exe
PID 1508 wrote to memory of 1484	1508	ganmuio.exe	AddInProcess32.exe
PID 1508 wrote to memory of 1484	1508	ganmuio.exe	AddInProcess32.exe
PID 1508 wrote to memory of 1484	1508	ganmuio.exe	AddInProcess32.exe
PID 1508 wrote to memory of 1484	1508	ganmuio.exe	AddInProcess32.exe
PID 1508 wrote to memory of 1484	1508	ganmuio.exe	AddInProcess32.exe
PID 1508 wrote to memory of 1484	1508	ganmuio.exe	AddInProcess32.exe
PID 1508 wrote to memory of 1484	1508	ganmuio.exe	AddInProcess32.exe
PID 1508 wrote to memory of 1632	1508	ganmuio.exe	greUgKja.exe
PID 1508 wrote to memory of 1632	1508	ganmuio.exe	greUgKja.exe
PID 1508 wrote to memory of 1632	1508	ganmuio.exe	greUgKja.exe
PID 1508 wrote to memory of 1632	1508	ganmuio.exe	greUgKja.exe
PID 1632 wrote to memory of 1520	1632	greUgKja.exe	greUgKja.exe
PID 1632 wrote to memory of 1520	1632	greUgKja.exe	greUgKja.exe
PID 1632 wrote to memory of 1520	1632	greUgKja.exe	greUgKja.exe
PID 1632 wrote to memory of 1520	1632	greUgKja.exe	greUgKja.exe

C:\Users\Admin\AppData\Local\Temp\Scanned PO N402201321.exe
"C:\Users\Admin\AppData\Local\Temp\Scanned PO N402201321.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1672

C:\Windows\SysWOW64\cmd.exe
"cmd" /c ping 127.0.0.1 -n 6 > nul && REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\AppData\Roaming\ganmuio.exe,"
2⤵
- Suspicious use of WriteProcessMemory
PID:1640

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 6
3⤵
- Runs ping.exe
PID:864

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\AppData\Roaming\ganmuio.exe,"
3⤵
- Modifies WinLogon for persistence
PID:1156

C:\Windows\SysWOW64\cmd.exe
"cmd" /c ping 127.0.0.1 -n 11 > nul && copy "C:\Users\Admin\AppData\Local\Temp\Scanned PO N402201321.exe" "C:\Users\Admin\AppData\Roaming\ganmuio.exe" && ping 127.0.0.1 -n 11 > nul && "C:\Users\Admin\AppData\Roaming\ganmuio.exe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1808

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 11
3⤵
- Runs ping.exe
PID:1756

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 11
3⤵
- Runs ping.exe
PID:1744

C:\Users\Admin\AppData\Roaming\ganmuio.exe
"C:\Users\Admin\AppData\Roaming\ganmuio.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1508

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
4⤵
- Suspicious use of SetWindowsHookEx
PID:1484

C:\Users\Admin\AppData\Local\Temp\greUgKja.exe
"C:\Users\Admin\AppData\Local\Temp\greUgKja.exe"
4⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1632

C:\Users\Admin\AppData\Local\Temp\greUgKja.exe
"C:\Users\Admin\AppData\Local\Temp\greUgKja.exe"
5⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1520

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x1bc
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1452

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Remote System Discovery

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\greUgKja.exe
Filesize
76KB

MD5
0e362e7005823d0bec3719b902ed6d62

SHA1
590d860b909804349e0cdc2f1662b37bd62f7463

SHA256
2d0dc6216f613ac7551a7e70a798c22aee8eb9819428b1357e2b8c73bef905ad

SHA512
518991b68496b3f8545e418cf9b345e0791e09cc20d177b8aa47e0aba447aa55383c64f5bdaca39f2b061a5d08c16f2ad484af8a9f238ca23ab081618fba3ad3

Download Submit
C:\Users\Admin\AppData\Local\Temp\greUgKja.exe
Filesize
76KB

MD5
0e362e7005823d0bec3719b902ed6d62

SHA1
590d860b909804349e0cdc2f1662b37bd62f7463

SHA256
2d0dc6216f613ac7551a7e70a798c22aee8eb9819428b1357e2b8c73bef905ad

SHA512
518991b68496b3f8545e418cf9b345e0791e09cc20d177b8aa47e0aba447aa55383c64f5bdaca39f2b061a5d08c16f2ad484af8a9f238ca23ab081618fba3ad3

Download Submit
C:\Users\Admin\AppData\Local\Temp\greUgKja.exe
Filesize
76KB

MD5
0e362e7005823d0bec3719b902ed6d62

SHA1
590d860b909804349e0cdc2f1662b37bd62f7463

SHA256
2d0dc6216f613ac7551a7e70a798c22aee8eb9819428b1357e2b8c73bef905ad

SHA512
518991b68496b3f8545e418cf9b345e0791e09cc20d177b8aa47e0aba447aa55383c64f5bdaca39f2b061a5d08c16f2ad484af8a9f238ca23ab081618fba3ad3

Download Submit
C:\Users\Admin\AppData\Local\Temp\greUgKja.txt
Filesize
56B

MD5
809043113a4d84e53c2e840f7c938fc8

SHA1
c1211aac9dd59cf4a817dfe9962f2d9a8adc0ce9

SHA256
2ec2d4e2d046c45faf8308cdd85cd615ae28c2a31c25fac4704918c678b0023f

SHA512
88c388b72ce90644871ab4da274ecfe4535c9ba910867a30db8b5538c419ec97e51fc4ed34673fd8ccbf0973aec70e2eb2edff0d62850d0512ca0944537400df

Download Submit
C:\Users\Admin\AppData\Local\Temp\greUgKja.txt
Filesize
56B

MD5
809043113a4d84e53c2e840f7c938fc8

SHA1
c1211aac9dd59cf4a817dfe9962f2d9a8adc0ce9

SHA256
2ec2d4e2d046c45faf8308cdd85cd615ae28c2a31c25fac4704918c678b0023f

SHA512
88c388b72ce90644871ab4da274ecfe4535c9ba910867a30db8b5538c419ec97e51fc4ed34673fd8ccbf0973aec70e2eb2edff0d62850d0512ca0944537400df

Download Submit
C:\Users\Admin\AppData\Local\Temp\greUgKja.txt
Filesize
56B

MD5
7c09b2a5ccaa88c844efdf65ed84d8e1

SHA1
5bdf9158aae89bd0efa68e01bfd845a4535a3937

SHA256
83b49f79e67803744ff29e4a115dcdd60ddffc12ebd9ce482820fe9dcd5abc7e

SHA512
994288e41e2818717724a8f1ee304389d89668be15f1a449c19997902c747bdf855662cbce7a8234dec80314a99aeb083c12a95555ef994037f08d2a112c6d93

Download Submit
C:\Users\Admin\AppData\Roaming\ganmuio.exe
Filesize
1.1MB

MD5
be5a3dcd8ac544cc9a5eac17daf5d813

SHA1
aa1317d65deca8bd330018e85000069288ce6afc

SHA256
70deba92a46f6f3913b10be9eeacfe0c0b89177d4ca6041012bc446ca9bd0acf

SHA512
77f0f34476d41108d2bb8d1009c08eb61d906cd13aad9bc3f397ad9d6d96a5f8bcd55181c90b231c707b71a175d531a952649bed9f302d658fb0338754ac5909

Download Submit
C:\Users\Admin\AppData\Roaming\ganmuio.exe
Filesize
1.1MB

MD5
be5a3dcd8ac544cc9a5eac17daf5d813

SHA1
aa1317d65deca8bd330018e85000069288ce6afc

SHA256
70deba92a46f6f3913b10be9eeacfe0c0b89177d4ca6041012bc446ca9bd0acf

SHA512
77f0f34476d41108d2bb8d1009c08eb61d906cd13aad9bc3f397ad9d6d96a5f8bcd55181c90b231c707b71a175d531a952649bed9f302d658fb0338754ac5909

Download Submit
\Users\Admin\AppData\Local\Temp\greUgKja.exe
Filesize
76KB

MD5
0e362e7005823d0bec3719b902ed6d62

SHA1
590d860b909804349e0cdc2f1662b37bd62f7463

SHA256
2d0dc6216f613ac7551a7e70a798c22aee8eb9819428b1357e2b8c73bef905ad

SHA512
518991b68496b3f8545e418cf9b345e0791e09cc20d177b8aa47e0aba447aa55383c64f5bdaca39f2b061a5d08c16f2ad484af8a9f238ca23ab081618fba3ad3

Download Submit
\Users\Admin\AppData\Local\Temp\greUgKja.exe
Filesize
76KB

MD5
0e362e7005823d0bec3719b902ed6d62

SHA1
590d860b909804349e0cdc2f1662b37bd62f7463

SHA256
2d0dc6216f613ac7551a7e70a798c22aee8eb9819428b1357e2b8c73bef905ad

SHA512
518991b68496b3f8545e418cf9b345e0791e09cc20d177b8aa47e0aba447aa55383c64f5bdaca39f2b061a5d08c16f2ad484af8a9f238ca23ab081618fba3ad3

Download Submit
\Users\Admin\AppData\Roaming\ganmuio.exe
Filesize
1.1MB

MD5
be5a3dcd8ac544cc9a5eac17daf5d813

SHA1
aa1317d65deca8bd330018e85000069288ce6afc

SHA256
70deba92a46f6f3913b10be9eeacfe0c0b89177d4ca6041012bc446ca9bd0acf

SHA512
77f0f34476d41108d2bb8d1009c08eb61d906cd13aad9bc3f397ad9d6d96a5f8bcd55181c90b231c707b71a175d531a952649bed9f302d658fb0338754ac5909

Download Submit
memory/864-59-0x0000000000000000-mapping.dmp

Download
memory/1156-62-0x0000000000000000-mapping.dmp

Download
memory/1484-84-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1484-82-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1484-88-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1484-85-0x00000000004327A4-mapping.dmp

Download
memory/1484-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1484-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1484-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1484-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1484-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1484-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1484-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1484-89-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1484-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1508-68-0x0000000000140000-0x0000000000258000-memory.dmp

Filesize
1.1MB

Download
memory/1508-65-0x0000000000000000-mapping.dmp

Download
memory/1508-71-0x0000000004110000-0x0000000004116000-memory.dmp

Filesize
24KB

Download
memory/1508-70-0x00000000040F0000-0x000000000410A000-memory.dmp

Filesize
104KB

Download
memory/1520-98-0x0000000000000000-mapping.dmp

Download
memory/1632-91-0x0000000000000000-mapping.dmp

Download
memory/1632-94-0x0000000000ED0000-0x0000000000EEA000-memory.dmp

Filesize
104KB

Download
memory/1640-58-0x0000000000000000-mapping.dmp

Download
memory/1672-56-0x00000000006D0000-0x0000000000702000-memory.dmp

Filesize
200KB

Download
memory/1672-54-0x0000000001080000-0x0000000001198000-memory.dmp

Filesize
1.1MB

Download
memory/1672-57-0x0000000000B80000-0x0000000000B98000-memory.dmp

Filesize
96KB

Download
memory/1672-55-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download
memory/1744-63-0x0000000000000000-mapping.dmp

Download
memory/1756-61-0x0000000000000000-mapping.dmp

Download
memory/1808-60-0x0000000000000000-mapping.dmp

Download