remcos | fc6a649dfb20ee03b390005b3275ab7f3fff10a2aef0b05643347435e3490c7b

General

Target

PI20200206AP,pdf.exe
Size

973KB
MD5

d96b6070b2724d3d7a47cbb59d414c9d
SHA1

ec6221a6ff1cd193c4d12e2b932f5ae2bc86abba
SHA256

3bfb18b65c870e3c012f8d38fa70ea7441d6b09530e5f77d837d636c0e2abd0d
SHA512

385086bee2f518d47f843ed03df42b6090b82dc928f8df16970e1d55e7febe42786fa8639097c1be8bdc4dbf22a3efdf7a53bcd16d5eaf1e67c6fdd8ffd77791

Score

10^/10

remcos zubby persistence rat

Malware Config

Extracted

Family

remcos

Version

3.2.0 Pro

Botnet

ZUBBY

C2

newlogs.ddns.net:7143

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-0OL7CZ
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
take_screenshot_title
notepad;solitaire;

Signatures

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

PI20200206AP,pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run\Krgrgu = "C:\\Users\\Public\\ugrgrK.url"	PI20200206AP,pdf.exe

Modifies registry key 1 TTPs 3 IoCs

Modify Registry
T1112

Processes:

reg.exereg.exereg.exe

pid process

1064 reg.exe
1760 reg.exe
944 reg.exe

pid	process
1064	reg.exe
1760	reg.exe
944	reg.exe

Modifies system certificate store 2 TTPs 4 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

PI20200206AP,pdf.exe

description	ioc	process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\1576011B0ADDEBDF89A49B9BD56C5BE07DF7A34E\Blob = 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	PI20200206AP,pdf.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\1576011B0ADDEBDF89A49B9BD56C5BE07DF7A34E	PI20200206AP,pdf.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\1576011B0ADDEBDF89A49B9BD56C5BE07DF7A34E\Blob = 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	PI20200206AP,pdf.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\1576011B0ADDEBDF89A49B9BD56C5BE07DF7A34E\Blob = 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	PI20200206AP,pdf.exe

Suspicious use of WriteProcessMemory 44 IoCs

Processes:

PI20200206AP,pdf.execmd.execmd.execmd.exe

description	pid	process	target process
PID 268 wrote to memory of 1244	268	PI20200206AP,pdf.exe	DpiScaling.exe
PID 268 wrote to memory of 1244	268	PI20200206AP,pdf.exe	DpiScaling.exe
PID 268 wrote to memory of 1244	268	PI20200206AP,pdf.exe	DpiScaling.exe
PID 268 wrote to memory of 1244	268	PI20200206AP,pdf.exe	DpiScaling.exe
PID 268 wrote to memory of 1244	268	PI20200206AP,pdf.exe	DpiScaling.exe
PID 268 wrote to memory of 1244	268	PI20200206AP,pdf.exe	DpiScaling.exe
PID 268 wrote to memory of 1244	268	PI20200206AP,pdf.exe	DpiScaling.exe
PID 268 wrote to memory of 1244	268	PI20200206AP,pdf.exe	DpiScaling.exe
PID 268 wrote to memory of 1244	268	PI20200206AP,pdf.exe	DpiScaling.exe
PID 268 wrote to memory of 1244	268	PI20200206AP,pdf.exe	DpiScaling.exe
PID 268 wrote to memory of 1244	268	PI20200206AP,pdf.exe	DpiScaling.exe
PID 268 wrote to memory of 1244	268	PI20200206AP,pdf.exe	DpiScaling.exe
PID 268 wrote to memory of 1244	268	PI20200206AP,pdf.exe	DpiScaling.exe
PID 268 wrote to memory of 1244	268	PI20200206AP,pdf.exe	DpiScaling.exe
PID 268 wrote to memory of 1244	268	PI20200206AP,pdf.exe	DpiScaling.exe
PID 268 wrote to memory of 1244	268	PI20200206AP,pdf.exe	DpiScaling.exe
PID 268 wrote to memory of 288	268	PI20200206AP,pdf.exe	cmd.exe
PID 268 wrote to memory of 288	268	PI20200206AP,pdf.exe	cmd.exe
PID 268 wrote to memory of 288	268	PI20200206AP,pdf.exe	cmd.exe
PID 268 wrote to memory of 288	268	PI20200206AP,pdf.exe	cmd.exe
PID 288 wrote to memory of 1708	288	cmd.exe	cmd.exe
PID 288 wrote to memory of 1708	288	cmd.exe	cmd.exe
PID 288 wrote to memory of 1708	288	cmd.exe	cmd.exe
PID 288 wrote to memory of 1708	288	cmd.exe	cmd.exe
PID 1708 wrote to memory of 1064	1708	cmd.exe	reg.exe
PID 1708 wrote to memory of 1064	1708	cmd.exe	reg.exe
PID 1708 wrote to memory of 1064	1708	cmd.exe	reg.exe
PID 1708 wrote to memory of 1064	1708	cmd.exe	reg.exe
PID 1708 wrote to memory of 1760	1708	cmd.exe	reg.exe
PID 1708 wrote to memory of 1760	1708	cmd.exe	reg.exe
PID 1708 wrote to memory of 1760	1708	cmd.exe	reg.exe
PID 1708 wrote to memory of 1760	1708	cmd.exe	reg.exe
PID 1708 wrote to memory of 1380	1708	cmd.exe	schtasks.exe
PID 1708 wrote to memory of 1380	1708	cmd.exe	schtasks.exe
PID 1708 wrote to memory of 1380	1708	cmd.exe	schtasks.exe
PID 1708 wrote to memory of 1380	1708	cmd.exe	schtasks.exe
PID 268 wrote to memory of 908	268	PI20200206AP,pdf.exe	cmd.exe
PID 268 wrote to memory of 908	268	PI20200206AP,pdf.exe	cmd.exe
PID 268 wrote to memory of 908	268	PI20200206AP,pdf.exe	cmd.exe
PID 268 wrote to memory of 908	268	PI20200206AP,pdf.exe	cmd.exe
PID 908 wrote to memory of 944	908	cmd.exe	reg.exe
PID 908 wrote to memory of 944	908	cmd.exe	reg.exe
PID 908 wrote to memory of 944	908	cmd.exe	reg.exe
PID 908 wrote to memory of 944	908	cmd.exe	reg.exe

C:\Users\Admin\AppData\Local\Temp\PI20200206AP,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PI20200206AP,pdf.exe"
1⤵
- Adds Run key to start application
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
PID:268

C:\Windows\SysWOW64\DpiScaling.exe
C:\Windows\System32\DpiScaling.exe
2⤵
PID:1244

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Public\Trast.bat" "
2⤵
- Suspicious use of WriteProcessMemory
PID:288

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
3⤵
- Suspicious use of WriteProcessMemory
PID:1708

C:\Windows\SysWOW64\reg.exe
reg delete hkcu\Environment /v windir /f
4⤵
- Modifies registry key
PID:1064

C:\Windows\SysWOW64\reg.exe
reg add hkcu\Environment /v windir /d "cmd /c start /min C:\Users\Public\KDECO.bat reg delete hkcu\Environment /v windir /f && REM "
4⤵
- Modifies registry key
PID:1760

C:\Windows\SysWOW64\schtasks.exe
schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
4⤵
PID:1380

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Public\nest.bat" "
2⤵
- Suspicious use of WriteProcessMemory
PID:908

C:\Windows\SysWOW64\reg.exe
reg delete hkcu\Environment /v windir /f
3⤵
- Modifies registry key
PID:944

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

3

T1112

Install Root Certificate

1

T1130

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Public\Trast.bat
MD5
4068c9f69fcd8a171c67f81d4a952a54

SHA1
4d2536a8c28cdcc17465e20d6693fb9e8e713b36

SHA256
24222300c78180b50ed1f8361ba63cb27316ec994c1c9079708a51b4a1a9d810

SHA512
a64f9319acc51fffd0491c74dcd9c9084c2783b82f95727e4bfe387a8528c6dcf68f11418e88f1e133d115daf907549c86dd7ad866b2a7938add5225fbb2811d

Download Submit
C:\Users\Public\UKO.bat
MD5
eaf8d967454c3bbddbf2e05a421411f8

SHA1
6170880409b24de75c2dc3d56a506fbff7f6622c

SHA256
f35f2658455a2e40f151549a7d6465a836c33fa9109e67623916f889849eac56

SHA512
fe5be5c673e99f70c93019d01abb0a29dd2ecf25b2d895190ff551f020c28e7d8f99f65007f440f0f76c5bcac343b2a179a94d190c938ea3b9e1197890a412e9

Download Submit
C:\Users\Public\nest.bat
MD5
8ada51400b7915de2124baaf75e3414c

SHA1
1a7b9db12184ab7fd7fce1c383f9670a00adb081

SHA256
45aa3957c29865260a78f03eef18ae9aebdbf7bea751ecc88be4a799f2bb46c7

SHA512
9afc138157a4565294ca49942579cdb6f5d8084e56f9354738de62b585f4c0fa3e7f2cbc9541827f2084e3ff36c46eed29b46f5dd2444062ffcd05c599992e68

Download Submit
memory/268-55-0x00000000003C1000-0x00000000003D5000-memory.dmp

Filesize
80KB

Download
memory/268-56-0x0000000074F81000-0x0000000074F83000-memory.dmp

Filesize
8KB

Download
memory/268-54-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/288-71-0x0000000000000000-mapping.dmp

Download
memory/908-83-0x0000000000000000-mapping.dmp

Download
memory/944-85-0x0000000000000000-mapping.dmp

Download
memory/1064-75-0x0000000000000000-mapping.dmp

Download
memory/1244-68-0x0000000072600000-0x000000007267C000-memory.dmp

Filesize
496KB

Download
memory/1244-79-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/1244-78-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/1244-80-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/1244-82-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1244-81-0x0000000072600000-0x000000007267C000-memory.dmp

Filesize
496KB

Download
memory/1244-58-0x0000000000000000-mapping.dmp

Download
memory/1244-57-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/1380-77-0x0000000000000000-mapping.dmp

Download
memory/1708-73-0x0000000000000000-mapping.dmp

Download
memory/1760-76-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads