remcos | 060c14947ec75ce9817f7be911534e3e15a797dc17680acc2f05d8afbffdc1c1

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
09-03-2023 23:43

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General

Target

DOCS.exe
Size

2.4MB
MD5

072ae884ff0b7f872b2d096c6f56cd8f
SHA1

ed6fe1c2cf2ade73266d7110bcc24d9b26651aa0
SHA256

060c14947ec75ce9817f7be911534e3e15a797dc17680acc2f05d8afbffdc1c1
SHA512

d8949a16c6b2b305345d73652ccdbe125eb4eb0a14a2811b0618f91717436fd61bfa5475846c7e4af93dc638c309bfea3c5ef6ecbcfe08aeaef5d98da16133b5
SSDEEP

24576:F3HAfWxfLwk0u2QynLyw//0gLTi+hxAL0CD2iFGo1V8nJp5bN+Zr3GiK3CvbRNOU:VjwR0nLkiRYr+Zr2iK3CvbRNO/j

Score

10^/10

remcos remotehost collection persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Version

2.7.1 Pro

Botnet

RemoteHost

march4great.ddns.net:2409

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-PV9ZM8
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
wikipedia;solitaire;

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

resource	yara_rule
behavioral2/memory/3820-184-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView
behavioral2/memory/3820-185-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/4392-183-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/4392-191-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 6 IoCs

resource	yara_rule
behavioral2/memory/3736-182-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4392-183-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/3820-184-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral2/memory/3736-189-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3820-185-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral2/memory/4392-191-0x0000000000400000-0x0000000000478000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation	DOCS.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	DOCS.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Holzupo = "\"C:\\Users\\Admin\\AppData\\Roaming\\Jipaxzr\\Holzupo.exe\""	DOCS.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1944 set thread context of 1604	1944	DOCS.exe	93
PID 1604 set thread context of 4392	1604	DOCS.exe	94
PID 1604 set thread context of 3736	1604	DOCS.exe	95
PID 1604 set thread context of 3820	1604	DOCS.exe	96

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 8 IoCs

pid	Process
5004	powershell.exe
5004	powershell.exe
4392	DOCS.exe
4392	DOCS.exe
3736	DOCS.exe
3736	DOCS.exe
4392	DOCS.exe
4392	DOCS.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5004	powershell.exe
Token: SeDebugPrivilege	1944	DOCS.exe
Token: SeDebugPrivilege	3736	DOCS.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 1944 wrote to memory of 5004	1944	DOCS.exe	85
PID 1944 wrote to memory of 5004	1944	DOCS.exe	85
PID 1944 wrote to memory of 5004	1944	DOCS.exe	85
PID 1944 wrote to memory of 1604	1944	DOCS.exe	93
PID 1944 wrote to memory of 1604	1944	DOCS.exe	93
PID 1944 wrote to memory of 1604	1944	DOCS.exe	93
PID 1944 wrote to memory of 1604	1944	DOCS.exe	93
PID 1944 wrote to memory of 1604	1944	DOCS.exe	93
PID 1944 wrote to memory of 1604	1944	DOCS.exe	93
PID 1944 wrote to memory of 1604	1944	DOCS.exe	93
PID 1944 wrote to memory of 1604	1944	DOCS.exe	93
PID 1944 wrote to memory of 1604	1944	DOCS.exe	93
PID 1944 wrote to memory of 1604	1944	DOCS.exe	93
PID 1604 wrote to memory of 4392	1604	DOCS.exe	94
PID 1604 wrote to memory of 4392	1604	DOCS.exe	94
PID 1604 wrote to memory of 4392	1604	DOCS.exe	94
PID 1604 wrote to memory of 4392	1604	DOCS.exe	94
PID 1604 wrote to memory of 4392	1604	DOCS.exe	94
PID 1604 wrote to memory of 4392	1604	DOCS.exe	94
PID 1604 wrote to memory of 4392	1604	DOCS.exe	94
PID 1604 wrote to memory of 4392	1604	DOCS.exe	94
PID 1604 wrote to memory of 3736	1604	DOCS.exe	95
PID 1604 wrote to memory of 3736	1604	DOCS.exe	95
PID 1604 wrote to memory of 3736	1604	DOCS.exe	95
PID 1604 wrote to memory of 3736	1604	DOCS.exe	95
PID 1604 wrote to memory of 3736	1604	DOCS.exe	95
PID 1604 wrote to memory of 3736	1604	DOCS.exe	95
PID 1604 wrote to memory of 3736	1604	DOCS.exe	95
PID 1604 wrote to memory of 3736	1604	DOCS.exe	95
PID 1604 wrote to memory of 3820	1604	DOCS.exe	96
PID 1604 wrote to memory of 3820	1604	DOCS.exe	96
PID 1604 wrote to memory of 3820	1604	DOCS.exe	96
PID 1604 wrote to memory of 3820	1604	DOCS.exe	96
PID 1604 wrote to memory of 3820	1604	DOCS.exe	96
PID 1604 wrote to memory of 3820	1604	DOCS.exe	96
PID 1604 wrote to memory of 3820	1604	DOCS.exe	96
PID 1604 wrote to memory of 3820	1604	DOCS.exe	96

C:\Users\Admin\AppData\Local\Temp\DOCS.exe
"C:\Users\Admin\AppData\Local\Temp\DOCS.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:1944
- 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:5004
- C:\Users\Admin\AppData\Local\Temp\DOCS.exe
  C:\Users\Admin\AppData\Local\Temp\DOCS.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1604
- - C:\Users\Admin\AppData\Local\Temp\DOCS.exe
    C:\Users\Admin\AppData\Local\Temp\DOCS.exe /stext "C:\Users\Admin\AppData\Local\Temp\cqqezcvrdtqwpwqmhoubvmhfjnqljn"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:4392
- - C:\Users\Admin\AppData\Local\Temp\DOCS.exe
    C:\Users\Admin\AppData\Local\Temp\DOCS.exe /stext "C:\Users\Admin\AppData\Local\Temp\eswwaufsrbibzcfqqzhdgrbojtiukyexgi"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3736
- - C:\Users\Admin\AppData\Local\Temp\DOCS.exe
    C:\Users\Admin\AppData\Local\Temp\DOCS.exe /stext "C:\Users\Admin\AppData\Local\Temp\pmjpsn"
    3⤵
    - Accesses Microsoft Outlook accounts
    PID:3820

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ezfsc23s.nqj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\cqqezcvrdtqwpwqmhoubvmhfjnqljn

Filesize
4KB

MD5
59f5e109fab5be401d6bd4ec9761b32a

SHA1
7de6b60f361f61a2e4567b2f44e5206afc6a23b0

SHA256
4829f91f7626e1917bd2882f0356c17596630efbc4883a911eb5c5b2955fb932

SHA512
10dd0784bad0d47bf9a2f1f0dcc7f0181df06474808a8104786e43c4392bcc7e3809676d5ecc95d2ce74e043fd329952b03d3efdcd905b15175cccdf385a1a0c

Download Submit
memory/1604-196-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-217-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-197-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-236-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-235-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-234-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-233-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-232-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-231-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-230-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-229-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-228-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-227-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-226-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-225-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-163-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-168-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-169-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-171-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-220-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-219-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-218-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-167-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-216-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-180-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-215-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-214-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-213-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-212-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-198-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-210-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-209-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-166-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-193-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-194-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-195-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-208-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-237-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-211-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-199-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-200-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-201-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-202-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-205-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-206-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1604-207-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1944-155-0x0000000004EE0000-0x0000000004EF0000-memory.dmp

Filesize
64KB

Download
memory/1944-133-0x00000000001B0000-0x000000000041C000-memory.dmp

Filesize
2.4MB

Download
memory/1944-134-0x0000000005120000-0x0000000005142000-memory.dmp

Filesize
136KB

Download
memory/1944-135-0x0000000004EE0000-0x0000000004EF0000-memory.dmp

Filesize
64KB

Download
memory/3736-189-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3736-182-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3736-177-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3736-174-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3820-185-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/3820-184-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/3820-181-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/3820-176-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/4392-191-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4392-172-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4392-183-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4392-179-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/5004-136-0x0000000004C80000-0x0000000004CB6000-memory.dmp

Filesize
216KB

Download
memory/5004-140-0x0000000005A60000-0x0000000005AC6000-memory.dmp

Filesize
408KB

Download
memory/5004-139-0x0000000004DF0000-0x0000000004E00000-memory.dmp

Filesize
64KB

Download
memory/5004-138-0x0000000004DF0000-0x0000000004E00000-memory.dmp

Filesize
64KB

Download
memory/5004-137-0x0000000005430000-0x0000000005A58000-memory.dmp

Filesize
6.2MB

Download
memory/5004-158-0x0000000004DF0000-0x0000000004E00000-memory.dmp

Filesize
64KB

Download
memory/5004-141-0x0000000005AD0000-0x0000000005B36000-memory.dmp

Filesize
408KB

Download
memory/5004-151-0x0000000006220000-0x000000000623E000-memory.dmp

Filesize
120KB

Download
memory/5004-154-0x0000000006700000-0x000000000671A000-memory.dmp

Filesize
104KB

Download
memory/5004-152-0x0000000004DF0000-0x0000000004E00000-memory.dmp

Filesize
64KB

Download
memory/5004-156-0x0000000004DF0000-0x0000000004E00000-memory.dmp

Filesize
64KB

Download
memory/5004-157-0x0000000004DF0000-0x0000000004E00000-memory.dmp

Filesize
64KB

Download
memory/5004-153-0x0000000007890000-0x0000000007F0A000-memory.dmp

Filesize
6.5MB

Download