remcos | fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c

General

Target

fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
Size

1.1MB
MD5

992bb973cca802daf8f95c6a0015267b
SHA1

b1fdb6f34f989930ef0b7d8b090f52591ac4d316
SHA256

fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c
SHA512

094b2e0ec3209694201d937f7c25aef8cdbe75144d3a51214e1f7bd99b8e35a240da7ca3a16370c4ddd0660421a8f49ded13f0bdf294d18e2b79866e5faee4f2
SSDEEP

24576:mPskkedT3pe/HfSOuFYZXsdWikf745uo4W18XO:mwy3o/wFCx3zuIWK+

Score

10^/10

remcos eric-host persistence rat

Malware Config

Extracted

Family

remcos

Botnet

Eric-Host

C2

craigjonson91211.freedynamicdns.net:2011

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
wee.exe
delete_file
false
hide_file
true
hide_keylog_file
true
install_flag
true
install_path
%AppData%
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_path
%AppData%
mouse_option
false
mutex
Rmc-3CS7D1
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
qos
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 2 IoCs

Processes:

wee.exewee.exe

pid process

3084 wee.exe
4712 wee.exe

pid	process
3084	wee.exe
4712	wee.exe

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

WScript.exefd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wee.exefd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\	wee.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\qos = "\"C:\\Users\\Admin\\AppData\\Roaming\\wee.exe\""	wee.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\qos = "\"C:\\Users\\Admin\\AppData\\Roaming\\wee.exe\""	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\qos = "\"C:\\Users\\Admin\\AppData\\Roaming\\wee.exe\""	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\	wee.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\qos = "\"C:\\Users\\Admin\\AppData\\Roaming\\wee.exe\""	wee.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exewee.exe

description	pid	process	target process
PID 2992 set thread context of 1156	2992	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
PID 3084 set thread context of 4712	3084	wee.exe	wee.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

wee.exe

pid process

4712 wee.exe

pid	process
4712	wee.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exefd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exeWScript.execmd.exewee.exe

description	pid	process	target process
PID 2992 wrote to memory of 1156	2992	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
PID 2992 wrote to memory of 1156	2992	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
PID 2992 wrote to memory of 1156	2992	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
PID 2992 wrote to memory of 1156	2992	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
PID 2992 wrote to memory of 1156	2992	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
PID 2992 wrote to memory of 1156	2992	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
PID 2992 wrote to memory of 1156	2992	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
PID 2992 wrote to memory of 1156	2992	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
PID 2992 wrote to memory of 1156	2992	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
PID 2992 wrote to memory of 1156	2992	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
PID 2992 wrote to memory of 1156	2992	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
PID 2992 wrote to memory of 1156	2992	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
PID 1156 wrote to memory of 2388	1156	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe	WScript.exe
PID 1156 wrote to memory of 2388	1156	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe	WScript.exe
PID 1156 wrote to memory of 2388	1156	fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe	WScript.exe
PID 2388 wrote to memory of 4472	2388	WScript.exe	cmd.exe
PID 2388 wrote to memory of 4472	2388	WScript.exe	cmd.exe
PID 2388 wrote to memory of 4472	2388	WScript.exe	cmd.exe
PID 4472 wrote to memory of 3084	4472	cmd.exe	wee.exe
PID 4472 wrote to memory of 3084	4472	cmd.exe	wee.exe
PID 4472 wrote to memory of 3084	4472	cmd.exe	wee.exe
PID 3084 wrote to memory of 4712	3084	wee.exe	wee.exe
PID 3084 wrote to memory of 4712	3084	wee.exe	wee.exe
PID 3084 wrote to memory of 4712	3084	wee.exe	wee.exe
PID 3084 wrote to memory of 4712	3084	wee.exe	wee.exe
PID 3084 wrote to memory of 4712	3084	wee.exe	wee.exe
PID 3084 wrote to memory of 4712	3084	wee.exe	wee.exe
PID 3084 wrote to memory of 4712	3084	wee.exe	wee.exe
PID 3084 wrote to memory of 4712	3084	wee.exe	wee.exe
PID 3084 wrote to memory of 4712	3084	wee.exe	wee.exe
PID 3084 wrote to memory of 4712	3084	wee.exe	wee.exe
PID 3084 wrote to memory of 4712	3084	wee.exe	wee.exe
PID 3084 wrote to memory of 4712	3084	wee.exe	wee.exe

C:\Users\Admin\AppData\Local\Temp\fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
"C:\Users\Admin\AppData\Local\Temp\fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2992

C:\Users\Admin\AppData\Local\Temp\fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe
"C:\Users\Admin\AppData\Local\Temp\fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1156

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\wsmoc.vbs"
3⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2388

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\wee.exe"
4⤵
- Suspicious use of WriteProcessMemory
PID:4472

C:\Users\Admin\AppData\Roaming\wee.exe
C:\Users\Admin\AppData\Roaming\wee.exe
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3084

C:\Users\Admin\AppData\Roaming\wee.exe
"C:\Users\Admin\AppData\Roaming\wee.exe"
6⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
PID:4712

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\wsmoc.vbs
Filesize
398B

MD5
f1536fc12b615b3b046757ce09cc2b41

SHA1
c67cacdb7dd2a1aa58ec9d2f554a831935fea0a2

SHA256
c03a7b60b1a4a6d06dbe6d1fc3444f68a64e1b9e48e1967b60003b0b02c78502

SHA512
39d0bfce41381099628b3d7f184c0aa49a98a9eef90da3b4be953530f3115bb4b72f871c6cf5026cce8d760b088865b63bbab3d8911d3e4513855712a3062207

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

MD5
992bb973cca802daf8f95c6a0015267b

SHA1
b1fdb6f34f989930ef0b7d8b090f52591ac4d316

SHA256
fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c

SHA512
094b2e0ec3209694201d937f7c25aef8cdbe75144d3a51214e1f7bd99b8e35a240da7ca3a16370c4ddd0660421a8f49ded13f0bdf294d18e2b79866e5faee4f2

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

MD5
992bb973cca802daf8f95c6a0015267b

SHA1
b1fdb6f34f989930ef0b7d8b090f52591ac4d316

SHA256
fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c

SHA512
094b2e0ec3209694201d937f7c25aef8cdbe75144d3a51214e1f7bd99b8e35a240da7ca3a16370c4ddd0660421a8f49ded13f0bdf294d18e2b79866e5faee4f2

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

MD5
992bb973cca802daf8f95c6a0015267b

SHA1
b1fdb6f34f989930ef0b7d8b090f52591ac4d316

SHA256
fd268ac25b0f2a211b7538d2be175f27833b058f16437a8c2625e7762074db7c

SHA512
094b2e0ec3209694201d937f7c25aef8cdbe75144d3a51214e1f7bd99b8e35a240da7ca3a16370c4ddd0660421a8f49ded13f0bdf294d18e2b79866e5faee4f2

Download Submit
memory/1156-143-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1156-137-0x0000000000000000-mapping.dmp

Download
memory/1156-138-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1156-139-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1156-140-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1156-141-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-142-0x0000000000000000-mapping.dmp

Download
memory/2992-132-0x0000000000DE0000-0x0000000000F06000-memory.dmp

Filesize
1.1MB

Download
memory/2992-136-0x0000000005BB0000-0x0000000005C4C000-memory.dmp

Filesize
624KB

Download
memory/2992-135-0x00000000058B0000-0x00000000058BA000-memory.dmp

Filesize
40KB

Download
memory/2992-134-0x0000000005950000-0x00000000059E2000-memory.dmp

Filesize
584KB

Download
memory/2992-133-0x0000000005E60000-0x0000000006404000-memory.dmp

Filesize
5.6MB

Download
memory/3084-146-0x0000000000000000-mapping.dmp

Download
memory/4472-145-0x0000000000000000-mapping.dmp

Download
memory/4712-149-0x0000000000000000-mapping.dmp

Download
memory/4712-152-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4712-153-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4712-154-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4712-155-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads