remcos | f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af

General

Target

f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
Size

891KB
MD5

365611c6c550f6b4d41e017b7f658975
SHA1

b31644d9fb613abfcb0bf7a801db77b4d7fd7ec9
SHA256

f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af
SHA512

6393bd06d1ea7faaccc85469f6b87aaab102064c8871f6ea8c33ea5434d822ddbd59157e50def89219ee0d3ebe09d34423dfc5d23f337b42a134422d71c3f721
SSDEEP

24576:Ig5HJmx9NoiP7+J7v8Dlco1AtasmkDu13xXD7:1Jmx/7zYv8BJ4a1kq1R7

Score

10^/10

remcos remotehost rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

paygateme.net:2286

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
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-WTDTSU
screenshot_crypt
true
screenshot_flag
true
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
1
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 19 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2548-22-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2548-20-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2548-24-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2548-28-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2548-31-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2548-33-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2548-39-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2548-45-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2548-81-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2548-82-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2548-83-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2548-88-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2548-89-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2548-96-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2548-97-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2548-102-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2548-103-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2548-108-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2548-110-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM

Detects executables packed with SmartAssembly 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3088-6-0x00000000064D0000-0x00000000064E0000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly
behavioral2/memory/3088-7-0x00000000060D0000-0x00000000060DC000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly

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:

f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe

description	pid	process	target process
PID 3088 set thread context of 2548	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

4416 schtasks.exe

pid	process
4416	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exepowershell.exe

pid	process
3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
3684	powershell.exe
3684	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
Token: SeDebugPrivilege	3684	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe

pid process

2548 f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe

pid	process
2548	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe

C:\Users\Admin\AppData\Local\Temp\f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
"C:\Users\Admin\AppData\Local\Temp\f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3088

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FCsxaE.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3684

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FCsxaE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAC0F.tmp"
2⤵
- Creates scheduled task(s)
PID:4416

C:\Users\Admin\AppData\Local\Temp\f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
"C:\Users\Admin\AppData\Local\Temp\f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:2548

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\ProgramData\remcos\logs.dat
Filesize
144B

MD5
57bd8aebfc0e41d00b813523c8297516

SHA1
bb35e339e1eec437bbd91730ae3317cfb20f3e19

SHA256
eceec4ae24aa059347a5a86196230ab2da29a8a57be0e3f8bb577edcccfa4819

SHA512
9db36870feb7de5e89bd1526c4f6db33f5f64459ff0e12566d514a7364ad846adde6f3a0801c58313c29acfe1d8c896247cc574212adf59275c7fbea9e3b8da6

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ypzzghar.smn.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpAC0F.tmp
Filesize
1KB

MD5
4ff4f99b781f61f35ff61979ce5791a4

SHA1
e3683ed647655da62ceca20501c2280a4502a9c2

SHA256
17722c7963e322fe9b6fd52dc2986353df6567b41d1a5a58738e3c6800a5cc07

SHA512
8aebd686016a037f57532d18301b29c9630e89d477d8435f24d07ee7b7a0e456afc6e5bec42ffa184a3acfe79de61fdabd8d6658da1fa6eb56177707da8d3eec

Download Submit
memory/2548-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2548-96-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2548-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2548-83-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2548-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2548-88-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2548-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2548-89-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2548-110-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2548-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2548-108-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2548-103-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2548-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2548-102-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2548-82-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2548-81-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2548-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2548-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2548-97-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3088-0-0x00000000003E0000-0x00000000004C6000-memory.dmp

Filesize
920KB

Download
memory/3088-9-0x0000000008CF0000-0x0000000008D8C000-memory.dmp

Filesize
624KB

Download
memory/3088-4-0x0000000004E50000-0x0000000004E60000-memory.dmp

Filesize
64KB

Download
memory/3088-2-0x0000000005520000-0x0000000005AC4000-memory.dmp

Filesize
5.6MB

Download
memory/3088-3-0x0000000004EA0000-0x0000000004F32000-memory.dmp

Filesize
584KB

Download
memory/3088-15-0x0000000004E50000-0x0000000004E60000-memory.dmp

Filesize
64KB

Download
memory/3088-13-0x0000000074D20000-0x00000000754D0000-memory.dmp

Filesize
7.7MB

Download
memory/3088-1-0x0000000074D20000-0x00000000754D0000-memory.dmp

Filesize
7.7MB

Download
memory/3088-25-0x0000000074D20000-0x00000000754D0000-memory.dmp

Filesize
7.7MB

Download
memory/3088-8-0x0000000006650000-0x0000000006710000-memory.dmp

Filesize
768KB

Download
memory/3088-7-0x00000000060D0000-0x00000000060DC000-memory.dmp

Filesize
48KB

Download
memory/3088-6-0x00000000064D0000-0x00000000064E0000-memory.dmp

Filesize
64KB

Download
memory/3088-5-0x0000000005080000-0x000000000508A000-memory.dmp

Filesize
40KB

Download
memory/3684-44-0x0000000006180000-0x00000000064D4000-memory.dmp

Filesize
3.3MB

Download
memory/3684-61-0x0000000006D30000-0x0000000006D4E000-memory.dmp

Filesize
120KB

Download
memory/3684-63-0x00000000079A0000-0x0000000007A43000-memory.dmp

Filesize
652KB

Download
memory/3684-62-0x00000000052C0000-0x00000000052D0000-memory.dmp

Filesize
64KB

Download
memory/3684-64-0x00000000052C0000-0x00000000052D0000-memory.dmp

Filesize
64KB

Download
memory/3684-65-0x00000000080D0000-0x000000000874A000-memory.dmp

Filesize
6.5MB

Download
memory/3684-66-0x0000000007A50000-0x0000000007A6A000-memory.dmp

Filesize
104KB

Download
memory/3684-67-0x0000000007AB0000-0x0000000007ABA000-memory.dmp

Filesize
40KB

Download
memory/3684-68-0x0000000007CC0000-0x0000000007D56000-memory.dmp

Filesize
600KB

Download
memory/3684-69-0x0000000007C40000-0x0000000007C51000-memory.dmp

Filesize
68KB

Download
memory/3684-70-0x0000000007C70000-0x0000000007C7E000-memory.dmp

Filesize
56KB

Download
memory/3684-71-0x0000000007C80000-0x0000000007C94000-memory.dmp

Filesize
80KB

Download
memory/3684-72-0x0000000007D80000-0x0000000007D9A000-memory.dmp

Filesize
104KB

Download
memory/3684-73-0x0000000007D60000-0x0000000007D68000-memory.dmp

Filesize
32KB

Download
memory/3684-76-0x0000000074D20000-0x00000000754D0000-memory.dmp

Filesize
7.7MB

Download
memory/3684-51-0x0000000070F00000-0x0000000070F4C000-memory.dmp

Filesize
304KB

Download
memory/3684-50-0x0000000006CF0000-0x0000000006D22000-memory.dmp

Filesize
200KB

Download
memory/3684-49-0x000000007F410000-0x000000007F420000-memory.dmp

Filesize
64KB

Download
memory/3684-48-0x0000000006750000-0x000000000679C000-memory.dmp

Filesize
304KB

Download
memory/3684-47-0x0000000006700000-0x000000000671E000-memory.dmp

Filesize
120KB

Download
memory/3684-30-0x0000000006030000-0x0000000006096000-memory.dmp

Filesize
408KB

Download
memory/3684-32-0x0000000006110000-0x0000000006176000-memory.dmp

Filesize
408KB

Download
memory/3684-27-0x0000000005630000-0x0000000005652000-memory.dmp

Filesize
136KB

Download
memory/3684-21-0x0000000005900000-0x0000000005F28000-memory.dmp

Filesize
6.2MB

Download
memory/3684-18-0x00000000052C0000-0x00000000052D0000-memory.dmp

Filesize
64KB

Download
memory/3684-17-0x0000000074D20000-0x00000000754D0000-memory.dmp

Filesize
7.7MB

Download
memory/3684-16-0x0000000005130000-0x0000000005166000-memory.dmp

Filesize
216KB

Download

description	pid	process	target process
PID 3088 wrote to memory of 3684	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	powershell.exe
PID 3088 wrote to memory of 3684	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	powershell.exe
PID 3088 wrote to memory of 3684	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	powershell.exe
PID 3088 wrote to memory of 4416	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	schtasks.exe
PID 3088 wrote to memory of 4416	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	schtasks.exe
PID 3088 wrote to memory of 4416	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	schtasks.exe
PID 3088 wrote to memory of 2548	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
PID 3088 wrote to memory of 2548	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
PID 3088 wrote to memory of 2548	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
PID 3088 wrote to memory of 2548	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
PID 3088 wrote to memory of 2548	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
PID 3088 wrote to memory of 2548	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
PID 3088 wrote to memory of 2548	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
PID 3088 wrote to memory of 2548	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
PID 3088 wrote to memory of 2548	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
PID 3088 wrote to memory of 2548	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
PID 3088 wrote to memory of 2548	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe
PID 3088 wrote to memory of 2548	3088	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe	f486a970c3228b346008eb169500d373560ea047084818b77357ba68bfa960af.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads