remcos | 53ddb9a75bca1115a66745b28086afbd394cef38f8437dda641b1219111df8cd

General

Target

d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
Size

7KB
MD5

b359f4af5c88b1e237db9738415b7682
SHA1

d7fa6d87594ea4d8b5740d54fdc204b08f4e9439
SHA256

53ddb9a75bca1115a66745b28086afbd394cef38f8437dda641b1219111df8cd
SHA512

6d4f06f36c608d3202d29629f9d9a70eadfbffbb23c7c074fbb610ed9e1926bf6e04c8dfecbbaf1d575fb2d0385d237aff2dbda322b092d4ef7728091eb596cb
SSDEEP

96:xtEsKVeCVIP7bLp8LAn5c8aY1ej/kKV+J2qzNt:xUVVIP7bLrEOejcKYx

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

194.180.49.17:28282

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
rdfghfgjkgoighjc.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-PC1DJ2
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

Checks computer location settings 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exed7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exerdfghfgjkgoighjc.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	rdfghfgjkgoighjc.exe

Executes dropped EXE 2 IoCs

Processes:

rdfghfgjkgoighjc.exerdfghfgjkgoighjc.exe

pid process

4292 rdfghfgjkgoighjc.exe
1464 rdfghfgjkgoighjc.exe

pid	process
4292	rdfghfgjkgoighjc.exe
1464	rdfghfgjkgoighjc.exe

Adds Run key to start application 2 TTPs 10 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exerdfghfgjkgoighjc.exed7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exerdfghfgjkgoighjc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\rdfghfgjkgoighjc.exe\""	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\rdfghfgjkgoighjc.exe\""	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\rdfghfgjkgoighjc.exe\""	rdfghfgjkgoighjc.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\	rdfghfgjkgoighjc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\rdfghfgjkgoighjc.exe\""	rdfghfgjkgoighjc.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\	rdfghfgjkgoighjc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Phecxlkxbf = "\"C:\\Users\\Admin\\AppData\\Roaming\\Zwpfblvosjv\\Phecxlkxbf.exe\""	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Phecxlkxbf = "\"C:\\Users\\Admin\\AppData\\Roaming\\Zwpfblvosjv\\Phecxlkxbf.exe\""	rdfghfgjkgoighjc.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exerdfghfgjkgoighjc.exe

description	pid	process	target process
PID 716 set thread context of 3784	716	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
PID 4292 set thread context of 1464	4292	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.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: EnumeratesProcesses 4 IoCs

Processes:

powershell.exepowershell.exe

pid process

2132 powershell.exe
2132 powershell.exe
3692 powershell.exe
3692 powershell.exe

pid	process
2132	powershell.exe
2132	powershell.exe
3692	powershell.exe
3692	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exepowershell.exerdfghfgjkgoighjc.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	716	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
Token: SeDebugPrivilege	2132	powershell.exe
Token: SeDebugPrivilege	4292	rdfghfgjkgoighjc.exe
Token: SeDebugPrivilege	3692	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

rdfghfgjkgoighjc.exe

pid process

1464 rdfghfgjkgoighjc.exe

pid	process
1464	rdfghfgjkgoighjc.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exed7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exerdfghfgjkgoighjc.exe

description	pid	process	target process
PID 716 wrote to memory of 2132	716	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	powershell.exe
PID 716 wrote to memory of 2132	716	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	powershell.exe
PID 716 wrote to memory of 2132	716	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	powershell.exe
PID 716 wrote to memory of 3784	716	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
PID 716 wrote to memory of 3784	716	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
PID 716 wrote to memory of 3784	716	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
PID 716 wrote to memory of 3784	716	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
PID 716 wrote to memory of 3784	716	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
PID 716 wrote to memory of 3784	716	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
PID 716 wrote to memory of 3784	716	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
PID 716 wrote to memory of 3784	716	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
PID 716 wrote to memory of 3784	716	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
PID 716 wrote to memory of 3784	716	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
PID 716 wrote to memory of 3784	716	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
PID 716 wrote to memory of 3784	716	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
PID 3784 wrote to memory of 4292	3784	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	rdfghfgjkgoighjc.exe
PID 3784 wrote to memory of 4292	3784	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	rdfghfgjkgoighjc.exe
PID 3784 wrote to memory of 4292	3784	d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe	rdfghfgjkgoighjc.exe
PID 4292 wrote to memory of 3692	4292	rdfghfgjkgoighjc.exe	powershell.exe
PID 4292 wrote to memory of 3692	4292	rdfghfgjkgoighjc.exe	powershell.exe
PID 4292 wrote to memory of 3692	4292	rdfghfgjkgoighjc.exe	powershell.exe
PID 4292 wrote to memory of 1464	4292	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 4292 wrote to memory of 1464	4292	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 4292 wrote to memory of 1464	4292	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 4292 wrote to memory of 1464	4292	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 4292 wrote to memory of 1464	4292	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 4292 wrote to memory of 1464	4292	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 4292 wrote to memory of 1464	4292	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 4292 wrote to memory of 1464	4292	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 4292 wrote to memory of 1464	4292	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 4292 wrote to memory of 1464	4292	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 4292 wrote to memory of 1464	4292	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 4292 wrote to memory of 1464	4292	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe

C:\Users\Admin\AppData\Local\Temp\d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
"C:\Users\Admin\AppData\Local\Temp\d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:716

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2132

C:\Users\Admin\AppData\Local\Temp\d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
C:\Users\Admin\AppData\Local\Temp\d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3784

C:\ProgramData\Remcos\rdfghfgjkgoighjc.exe
"C:\ProgramData\Remcos\rdfghfgjkgoighjc.exe"
3⤵
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4292

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3692

C:\ProgramData\Remcos\rdfghfgjkgoighjc.exe
C:\ProgramData\Remcos\rdfghfgjkgoighjc.exe
4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
PID:1464

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\ProgramData\Remcos\rdfghfgjkgoighjc.exe
Filesize
7KB

MD5
b359f4af5c88b1e237db9738415b7682

SHA1
d7fa6d87594ea4d8b5740d54fdc204b08f4e9439

SHA256
53ddb9a75bca1115a66745b28086afbd394cef38f8437dda641b1219111df8cd

SHA512
6d4f06f36c608d3202d29629f9d9a70eadfbffbb23c7c074fbb610ed9e1926bf6e04c8dfecbbaf1d575fb2d0385d237aff2dbda322b092d4ef7728091eb596cb

Download Submit
C:\ProgramData\Remcos\rdfghfgjkgoighjc.exe
Filesize
7KB

MD5
b359f4af5c88b1e237db9738415b7682

SHA1
d7fa6d87594ea4d8b5740d54fdc204b08f4e9439

SHA256
53ddb9a75bca1115a66745b28086afbd394cef38f8437dda641b1219111df8cd

SHA512
6d4f06f36c608d3202d29629f9d9a70eadfbffbb23c7c074fbb610ed9e1926bf6e04c8dfecbbaf1d575fb2d0385d237aff2dbda322b092d4ef7728091eb596cb

Download Submit
C:\ProgramData\Remcos\rdfghfgjkgoighjc.exe
Filesize
7KB

MD5
b359f4af5c88b1e237db9738415b7682

SHA1
d7fa6d87594ea4d8b5740d54fdc204b08f4e9439

SHA256
53ddb9a75bca1115a66745b28086afbd394cef38f8437dda641b1219111df8cd

SHA512
6d4f06f36c608d3202d29629f9d9a70eadfbffbb23c7c074fbb610ed9e1926bf6e04c8dfecbbaf1d575fb2d0385d237aff2dbda322b092d4ef7728091eb596cb

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize
1KB

MD5
4280e36a29fa31c01e4d8b2ba726a0d8

SHA1
c485c2c9ce0a99747b18d899b71dfa9a64dabe32

SHA256
e2486a1bdcba80dad6dd6210d7374bd70ae196a523c06ceda71370fd3ea78359

SHA512
494fe5f0ade03669e5830bed93c964d69b86629440148d7b0881cf53203fd89443ebff9b4d1ee9d96244f62af6edede622d9eacba37f80f389a0d522e4ad4ea4

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
Filesize
53KB

MD5
06ad34f9739c5159b4d92d702545bd49

SHA1
9152a0d4f153f3f40f7e606be75f81b582ee0c17

SHA256
474813b625f00710f29fa3b488235a6a22201851efb336bddf60d7d24a66bfba

SHA512
c272cd28ae164d465b779163ba9eca6a28261376414c6bbdfbd9f2128adb7f7ff1420e536b4d6000d0301ded2ec9036bc5c657588458bff41f176bdce8d74f92

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
16KB

MD5
268510cc47d32b0e13f1ed970084a05d

SHA1
64fd881adeca7b25a9c57dc4b39786734d719b54

SHA256
846753dbebde7d972ee2c63b85cec91a08969a3fbbd2dcdbd027f9999bf6a271

SHA512
5f38aa1be4c7fd4f891fb6964cd6758d0e70db02a7ec4eecf05b05a071e4c2c09dece2fc3e370fd9d582e1ab299567dec9f58d8e4ba7b3e62525e64544059ab5

Download Submit
C:\Users\Admin\AppData\Roaming\Zwpfblvosjv\Phecxlkxbf.exe
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/716-133-0x0000000008190000-0x00000000081B2000-memory.dmp

Filesize
136KB

Download
memory/716-132-0x0000000000F00000-0x0000000000F08000-memory.dmp

Filesize
32KB

Download
memory/1464-159-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1464-158-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1464-161-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1464-160-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1464-155-0x0000000000000000-mapping.dmp

Download
memory/2132-136-0x0000000004F60000-0x0000000005588000-memory.dmp

Filesize
6.2MB

Download
memory/2132-135-0x0000000000BD0000-0x0000000000C06000-memory.dmp

Filesize
216KB

Download
memory/2132-137-0x0000000005600000-0x0000000005666000-memory.dmp

Filesize
408KB

Download
memory/2132-141-0x0000000006210000-0x000000000622A000-memory.dmp

Filesize
104KB

Download
memory/2132-134-0x0000000000000000-mapping.dmp

Download
memory/2132-140-0x00000000075B0000-0x0000000007C2A000-memory.dmp

Filesize
6.5MB

Download
memory/2132-139-0x0000000005D40000-0x0000000005D5E000-memory.dmp

Filesize
120KB

Download
memory/2132-138-0x00000000056E0000-0x0000000005746000-memory.dmp

Filesize
408KB

Download
memory/3692-150-0x0000000000000000-mapping.dmp

Download
memory/3784-143-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3784-149-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3784-145-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3784-144-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3784-142-0x0000000000000000-mapping.dmp

Download
memory/4292-146-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads