remcos | 85dec13a308fd96a187495577a1d8713ad6a0ecd6f50f557f165c333d3540e11

Analysis

max time kernel
57s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
15-12-2023 14:00

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General

Target

PO-1215MTS23.exe
Size

966KB
MD5

c36e313d277bef84a8780ecd5397d67b
SHA1

dea44aba5f806f9b410bf4f76040bdee7da7d836
SHA256

85dec13a308fd96a187495577a1d8713ad6a0ecd6f50f557f165c333d3540e11
SHA512

ef8ffc010a2c0ce639c3d87d852a76d112e4d044e61304cad5d1d70d93bb985a9c0f1cb55c89cd3b44216e7f76b5ce887cf4ce34529520bf854da07006eaf93d
SSDEEP

24576:s16gQ455U3VWbcOnXM7jKAWtUx6H0CDzhnu4H4444C:sMsmFYFZ6YH1Hg4H4444C

Score

10^/10

remcos admin rat

Malware Config

Extracted

Family

remcos

Botnet

ADMIN

198.27.121.194:2024

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-E6ZT5E
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral2/memory/1188-92-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView
behavioral2/memory/1188-95-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral2/memory/1064-91-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/1064-94-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/1064-102-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 8 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1188-92-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral2/memory/1064-91-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/1188-95-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral2/memory/3480-100-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3480-99-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/1064-94-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/3480-93-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/1064-102-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

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:

PO-1215MTS23.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	PO-1215MTS23.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

2044 schtasks.exe

pid	process
2044	schtasks.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

PO-1215MTS23.exe

pid	process
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe
1576	PO-1215MTS23.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

PO-1215MTS23.exe

description pid process

Token: SeDebugPrivilege 1576 PO-1215MTS23.exe

description	pid	process
Token: SeDebugPrivilege	1576	PO-1215MTS23.exe

C:\Users\Admin\AppData\Local\Temp\PO-1215MTS23.exe
"C:\Users\Admin\AppData\Local\Temp\PO-1215MTS23.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1576

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qegrLvDvVB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1E03.tmp"
2⤵
- Creates scheduled task(s)
PID:2044

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qegrLvDvVB.exe"
2⤵
PID:3176

C:\Users\Admin\AppData\Local\Temp\PO-1215MTS23.exe
"C:\Users\Admin\AppData\Local\Temp\PO-1215MTS23.exe"
2⤵
PID:1988

C:\Users\Admin\AppData\Local\Temp\PO-1215MTS23.exe
C:\Users\Admin\AppData\Local\Temp\PO-1215MTS23.exe /stext "C:\Users\Admin\AppData\Local\Temp\epszomos"
3⤵
PID:3480

C:\Users\Admin\AppData\Local\Temp\PO-1215MTS23.exe
C:\Users\Admin\AppData\Local\Temp\PO-1215MTS23.exe /stext "C:\Users\Admin\AppData\Local\Temp\cvmg"
3⤵
PID:1188

C:\Users\Admin\AppData\Local\Temp\PO-1215MTS23.exe
C:\Users\Admin\AppData\Local\Temp\PO-1215MTS23.exe /stext "C:\Users\Admin\AppData\Local\Temp\rtzomjlxauefosfofnttwmxacjetvetr"
3⤵
PID:1064

C:\Users\Admin\AppData\Local\Temp\PO-1215MTS23.exe
C:\Users\Admin\AppData\Local\Temp\PO-1215MTS23.exe /stext "C:\Users\Admin\AppData\Local\Temp\rtzomjlxauefosfofnttwmxacjetvetr"
3⤵
PID:3648

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1cl5s1em.oqa.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\rtzomjlxauefosfofnttwmxacjetvetr
Filesize
4KB

MD5
a53497fd7bf281f61d7d819a649c64bd

SHA1
580d201744bc94c3cf3cb922a79f8313b1011a93

SHA256
34f39f0ccb042a848a325458f619fc07b808653c0bebd8cde69d5f8428cfeec7

SHA512
1fcedb78352bf040a9a693e8389b9e81aa78f4995c6587b213ac57e813493f94bfa65b5d981e67dc32e59d861bb7c9f2f1d36892deee6d39b8371393b01f35dc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1E03.tmp
Filesize
1KB

MD5
bf5b0fec79c4117967991cc59ec0d1f8

SHA1
cea4ab60c3d15cdde3c6437ebad17856983cb8b4

SHA256
6166f0f7772810458ab7f2fd6e25fef9d32aa8c720201075469a1efb7d85d390

SHA512
eba23d9b2289a4794a1f50bc19c96d4a2df173f2214993c1502e81abe78327202711b569a5fbbebd36359ac4170e6495b75ac4e4793bbee397807bc7774a681c

Download Submit
memory/1064-86-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1064-81-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1064-91-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1064-94-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1064-102-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1188-92-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/1188-95-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/1188-82-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/1188-88-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/1576-4-0x0000000004C70000-0x0000000004C80000-memory.dmp

Filesize
64KB

Download
memory/1576-7-0x0000000005E50000-0x0000000005E58000-memory.dmp

Filesize
32KB

Download
memory/1576-6-0x0000000006290000-0x00000000062A8000-memory.dmp

Filesize
96KB

Download
memory/1576-5-0x0000000004C60000-0x0000000004C6A000-memory.dmp

Filesize
40KB

Download
memory/1576-8-0x0000000005E30000-0x0000000005E3A000-memory.dmp

Filesize
40KB

Download
memory/1576-9-0x0000000006530000-0x00000000065E8000-memory.dmp

Filesize
736KB

Download
memory/1576-3-0x0000000004CA0000-0x0000000004D32000-memory.dmp

Filesize
584KB

Download
memory/1576-11-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/1576-2-0x0000000005170000-0x0000000005714000-memory.dmp

Filesize
5.6MB

Download
memory/1576-36-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/1576-1-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/1576-0-0x0000000000160000-0x0000000000258000-memory.dmp

Filesize
992KB

Download
memory/1576-10-0x0000000008BE0000-0x0000000008C7C000-memory.dmp

Filesize
624KB

Download
memory/1988-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-117-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-118-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-115-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-116-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-114-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-113-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-112-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-111-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-104-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1988-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-107-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1988-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-108-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1988-65-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-109-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-110-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1988-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1988-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3176-75-0x0000000007C10000-0x0000000007C24000-memory.dmp

Filesize
80KB

Download
memory/3176-63-0x0000000008010000-0x000000000868A000-memory.dmp

Filesize
6.5MB

Download
memory/3176-79-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/3176-77-0x0000000007CF0000-0x0000000007CF8000-memory.dmp

Filesize
32KB

Download
memory/3176-26-0x0000000005EE0000-0x0000000005F46000-memory.dmp

Filesize
408KB

Download
memory/3176-76-0x0000000007D10000-0x0000000007D2A000-memory.dmp

Filesize
104KB

Download
memory/3176-18-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/3176-35-0x00000000060A0000-0x00000000063F4000-memory.dmp

Filesize
3.3MB

Download
memory/3176-44-0x00000000066B0000-0x00000000066CE000-memory.dmp

Filesize
120KB

Download
memory/3176-23-0x00000000055D0000-0x00000000055F2000-memory.dmp

Filesize
136KB

Download
memory/3176-74-0x0000000007C00000-0x0000000007C0E000-memory.dmp

Filesize
56KB

Download
memory/3176-25-0x0000000005670000-0x00000000056D6000-memory.dmp

Filesize
408KB

Download
memory/3176-46-0x000000007F990000-0x000000007F9A0000-memory.dmp

Filesize
64KB

Download
memory/3176-45-0x0000000006740000-0x000000000678C000-memory.dmp

Filesize
304KB

Download
memory/3176-47-0x0000000006C80000-0x0000000006CB2000-memory.dmp

Filesize
200KB

Download
memory/3176-20-0x0000000002D40000-0x0000000002D50000-memory.dmp

Filesize
64KB

Download
memory/3176-60-0x00000000076E0000-0x0000000007783000-memory.dmp

Filesize
652KB

Download
memory/3176-21-0x0000000002D40000-0x0000000002D50000-memory.dmp

Filesize
64KB

Download
memory/3176-48-0x00000000756A0000-0x00000000756EC000-memory.dmp

Filesize
304KB

Download
memory/3176-66-0x0000000007A40000-0x0000000007A4A000-memory.dmp

Filesize
40KB

Download
memory/3176-71-0x0000000007BD0000-0x0000000007BE1000-memory.dmp

Filesize
68KB

Download
memory/3176-70-0x0000000007C50000-0x0000000007CE6000-memory.dmp

Filesize
600KB

Download
memory/3176-19-0x00000000057B0000-0x0000000005DD8000-memory.dmp

Filesize
6.2MB

Download
memory/3176-16-0x0000000002D90000-0x0000000002DC6000-memory.dmp

Filesize
216KB

Download
memory/3176-64-0x00000000079D0000-0x00000000079EA000-memory.dmp

Filesize
104KB

Download
memory/3176-58-0x0000000006C60000-0x0000000006C7E000-memory.dmp

Filesize
120KB

Download
memory/3176-59-0x0000000002D40000-0x0000000002D50000-memory.dmp

Filesize
64KB

Download
memory/3480-93-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3480-99-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3480-100-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3480-89-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3480-85-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download