remcos | 8599006c1e34bc121bf1951de8c55cba1479b4497f2b2075f6c0db88d5a78f25

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-08-2024 18:17

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General

Target

kiQazVVhiseOPPw.exe
Size

985KB
MD5

b772bcef555593a381361860371e6764
SHA1

25d12d87ef49d4f24e78fa04d9e1686643b6e515
SHA256

8599006c1e34bc121bf1951de8c55cba1479b4497f2b2075f6c0db88d5a78f25
SHA512

7056ed05ef4d856217887783f02336e594bcd3341ea95cd8b9908ae903850f0c55347c6899505b4ec27e9e2d949e7fb0409d114d586318f7ede2c4caa24964e2
SSDEEP

24576:s1re+6BzpmYr3XF3i/esVgunqmzj2o41bYrgnp9Hxa:sNe+66PGsVPq2ebYrgp9H0

Score

10^/10

remcos aug 26 collection credential_access discovery execution rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

AUG 26

sungito2.ddns.net:6509

154.216.19.222:5532

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-LXAZN2
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
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Detected Nirsoft tools 3 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral2/memory/2176-56-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/4772-62-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/1720-55-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/2176-56-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/1720-55-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3188	powershell.exe

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	kiQazVVhiseOPPw.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
T1552.001

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	kiQazVVhiseOPPw.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4252 set thread context of 4652	4252	kiQazVVhiseOPPw.exe	97
PID 4652 set thread context of 1720	4652	kiQazVVhiseOPPw.exe	99
PID 4652 set thread context of 2176	4652	kiQazVVhiseOPPw.exe	100
PID 4652 set thread context of 4772	4652	kiQazVVhiseOPPw.exe	101

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kiQazVVhiseOPPw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kiQazVVhiseOPPw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kiQazVVhiseOPPw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kiQazVVhiseOPPw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kiQazVVhiseOPPw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3188	powershell.exe
3188	powershell.exe
1720	kiQazVVhiseOPPw.exe
1720	kiQazVVhiseOPPw.exe
4772	kiQazVVhiseOPPw.exe
4772	kiQazVVhiseOPPw.exe
1720	kiQazVVhiseOPPw.exe
1720	kiQazVVhiseOPPw.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
4652	kiQazVVhiseOPPw.exe
4652	kiQazVVhiseOPPw.exe
4652	kiQazVVhiseOPPw.exe
4652	kiQazVVhiseOPPw.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3188	powershell.exe
Token: SeDebugPrivilege	4772	kiQazVVhiseOPPw.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4652	kiQazVVhiseOPPw.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4252 wrote to memory of 3188	4252	kiQazVVhiseOPPw.exe	95
PID 4252 wrote to memory of 3188	4252	kiQazVVhiseOPPw.exe	95
PID 4252 wrote to memory of 3188	4252	kiQazVVhiseOPPw.exe	95
PID 4252 wrote to memory of 4652	4252	kiQazVVhiseOPPw.exe	97
PID 4252 wrote to memory of 4652	4252	kiQazVVhiseOPPw.exe	97
PID 4252 wrote to memory of 4652	4252	kiQazVVhiseOPPw.exe	97
PID 4252 wrote to memory of 4652	4252	kiQazVVhiseOPPw.exe	97
PID 4252 wrote to memory of 4652	4252	kiQazVVhiseOPPw.exe	97
PID 4252 wrote to memory of 4652	4252	kiQazVVhiseOPPw.exe	97
PID 4252 wrote to memory of 4652	4252	kiQazVVhiseOPPw.exe	97
PID 4252 wrote to memory of 4652	4252	kiQazVVhiseOPPw.exe	97
PID 4252 wrote to memory of 4652	4252	kiQazVVhiseOPPw.exe	97
PID 4252 wrote to memory of 4652	4252	kiQazVVhiseOPPw.exe	97
PID 4252 wrote to memory of 4652	4252	kiQazVVhiseOPPw.exe	97
PID 4252 wrote to memory of 4652	4252	kiQazVVhiseOPPw.exe	97
PID 4652 wrote to memory of 1476	4652	kiQazVVhiseOPPw.exe	98
PID 4652 wrote to memory of 1476	4652	kiQazVVhiseOPPw.exe	98
PID 4652 wrote to memory of 1476	4652	kiQazVVhiseOPPw.exe	98
PID 4652 wrote to memory of 1720	4652	kiQazVVhiseOPPw.exe	99
PID 4652 wrote to memory of 1720	4652	kiQazVVhiseOPPw.exe	99
PID 4652 wrote to memory of 1720	4652	kiQazVVhiseOPPw.exe	99
PID 4652 wrote to memory of 1720	4652	kiQazVVhiseOPPw.exe	99
PID 4652 wrote to memory of 2176	4652	kiQazVVhiseOPPw.exe	100
PID 4652 wrote to memory of 2176	4652	kiQazVVhiseOPPw.exe	100
PID 4652 wrote to memory of 2176	4652	kiQazVVhiseOPPw.exe	100
PID 4652 wrote to memory of 2176	4652	kiQazVVhiseOPPw.exe	100
PID 4652 wrote to memory of 4772	4652	kiQazVVhiseOPPw.exe	101
PID 4652 wrote to memory of 4772	4652	kiQazVVhiseOPPw.exe	101
PID 4652 wrote to memory of 4772	4652	kiQazVVhiseOPPw.exe	101
PID 4652 wrote to memory of 4772	4652	kiQazVVhiseOPPw.exe	101

C:\Users\Admin\AppData\Local\Temp\kiQazVVhiseOPPw.exe
"C:\Users\Admin\AppData\Local\Temp\kiQazVVhiseOPPw.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4252
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\kiQazVVhiseOPPw.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3188
- C:\Users\Admin\AppData\Local\Temp\kiQazVVhiseOPPw.exe
  "C:\Users\Admin\AppData\Local\Temp\kiQazVVhiseOPPw.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4652
- - C:\Users\Admin\AppData\Local\Temp\kiQazVVhiseOPPw.exe
    C:\Users\Admin\AppData\Local\Temp\kiQazVVhiseOPPw.exe /stext "C:\Users\Admin\AppData\Local\Temp\ubyawafsy"
    3⤵
    PID:1476
- - C:\Users\Admin\AppData\Local\Temp\kiQazVVhiseOPPw.exe
    C:\Users\Admin\AppData\Local\Temp\kiQazVVhiseOPPw.exe /stext "C:\Users\Admin\AppData\Local\Temp\ubyawafsy"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:1720
- - C:\Users\Admin\AppData\Local\Temp\kiQazVVhiseOPPw.exe
    C:\Users\Admin\AppData\Local\Temp\kiQazVVhiseOPPw.exe /stext "C:\Users\Admin\AppData\Local\Temp\evdtwsqumwbv"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:2176
- - C:\Users\Admin\AppData\Local\Temp\kiQazVVhiseOPPw.exe
    C:\Users\Admin\AppData\Local\Temp\kiQazVVhiseOPPw.exe /stext "C:\Users\Admin\AppData\Local\Temp\hpqdplbnaetatwr"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
bf17266ebf97f05ff88da308308e7ecc

SHA1
288d55a0cee39dd4a72340023d8a860d4bcd0ed7

SHA256
588d5e73ae7f8483464c0217250c65831043252302f499f1b484e270d6378be9

SHA512
3ba934707c7e3863ff0d3e01a2eeaafb4a158f08a7bbeb1a50957b888a820e11ae064fa66be3402d4a1daae74fe6ad0775d42cec8db1595971431ddfff744b8f

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wu0daazv.b4l.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
4KB

MD5
15e28d82a9ee8a45c10bcf671fef0362

SHA1
2b126b086a1191cb8b4d444e87781358d51af3a4

SHA256
012fbb5f15d52a9560cf0e77fd36837ec2c56aff7a989d31c3d40d4f6df6cf9d

SHA512
3dd749523858a54e7e5ededba47d54715c9d5663dd0bd609363de7442436d1f0e924c5e4706e3ac413b79ddb6a18c796cc0ad166b4c87a3a7a6b009ba77fee82

Download Submit
memory/1720-52-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1720-51-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1720-55-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2176-53-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2176-56-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2176-54-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3188-63-0x0000000006690000-0x00000000066C2000-memory.dmp

Filesize
200KB

Download
memory/3188-27-0x00000000749A0000-0x0000000075150000-memory.dmp

Filesize
7.7MB

Download
memory/3188-77-0x00000000073F0000-0x000000000740A000-memory.dmp

Filesize
104KB

Download
memory/3188-76-0x0000000007A30000-0x00000000080AA000-memory.dmp

Filesize
6.5MB

Download
memory/3188-80-0x0000000007670000-0x0000000007706000-memory.dmp

Filesize
600KB

Download
memory/3188-81-0x00000000075F0000-0x0000000007601000-memory.dmp

Filesize
68KB

Download
memory/3188-89-0x0000000007620000-0x000000000762E000-memory.dmp

Filesize
56KB

Download
memory/3188-90-0x0000000007630000-0x0000000007644000-memory.dmp

Filesize
80KB

Download
memory/3188-21-0x00000000749AE000-0x00000000749AF000-memory.dmp

Filesize
4KB

Download
memory/3188-64-0x0000000071290000-0x00000000712DC000-memory.dmp

Filesize
304KB

Download
memory/3188-75-0x00000000070B0000-0x0000000007153000-memory.dmp

Filesize
652KB

Download
memory/3188-22-0x00000000027E0000-0x0000000002816000-memory.dmp

Filesize
216KB

Download
memory/3188-26-0x00000000052E0000-0x0000000005908000-memory.dmp

Filesize
6.2MB

Download
memory/3188-79-0x0000000007460000-0x000000000746A000-memory.dmp

Filesize
40KB

Download
memory/3188-25-0x00000000749A0000-0x0000000075150000-memory.dmp

Filesize
7.7MB

Download
memory/3188-74-0x0000000007090000-0x00000000070AE000-memory.dmp

Filesize
120KB

Download
memory/3188-30-0x0000000005270000-0x00000000052D6000-memory.dmp

Filesize
408KB

Download
memory/3188-29-0x0000000005190000-0x00000000051F6000-memory.dmp

Filesize
408KB

Download
memory/3188-28-0x0000000004FF0000-0x0000000005012000-memory.dmp

Filesize
136KB

Download
memory/3188-91-0x0000000007730000-0x000000000774A000-memory.dmp

Filesize
104KB

Download
memory/3188-40-0x0000000005AC0000-0x0000000005E14000-memory.dmp

Filesize
3.3MB

Download
memory/3188-41-0x00000000060B0000-0x00000000060CE000-memory.dmp

Filesize
120KB

Download
memory/3188-42-0x00000000060F0000-0x000000000613C000-memory.dmp

Filesize
304KB

Download
memory/3188-92-0x0000000007710000-0x0000000007718000-memory.dmp

Filesize
32KB

Download
memory/3188-95-0x00000000749A0000-0x0000000075150000-memory.dmp

Filesize
7.7MB

Download
memory/4252-23-0x00000000749A0000-0x0000000075150000-memory.dmp

Filesize
7.7MB

Download
memory/4252-2-0x0000000005980000-0x0000000005F24000-memory.dmp

Filesize
5.6MB

Download
memory/4252-1-0x00000000008B0000-0x00000000009AA000-memory.dmp

Filesize
1000KB

Download
memory/4252-3-0x00000000053D0000-0x0000000005462000-memory.dmp

Filesize
584KB

Download
memory/4252-5-0x00000000749A0000-0x0000000075150000-memory.dmp

Filesize
7.7MB

Download
memory/4252-4-0x0000000005390000-0x000000000539A000-memory.dmp

Filesize
40KB

Download
memory/4252-6-0x0000000005570000-0x000000000558A000-memory.dmp

Filesize
104KB

Download
memory/4252-7-0x00000000749AE000-0x00000000749AF000-memory.dmp

Filesize
4KB

Download
memory/4252-8-0x00000000749A0000-0x0000000075150000-memory.dmp

Filesize
7.7MB

Download
memory/4252-0-0x00000000749AE000-0x00000000749AF000-memory.dmp

Filesize
4KB

Download
memory/4252-9-0x00000000055A0000-0x00000000055B0000-memory.dmp

Filesize
64KB

Download
memory/4252-10-0x0000000008370000-0x0000000008430000-memory.dmp

Filesize
768KB

Download
memory/4252-11-0x0000000007100000-0x000000000719C000-memory.dmp

Filesize
624KB

Download
memory/4652-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-128-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-127-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-119-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-83-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4652-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-87-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4652-86-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4652-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-88-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-97-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-104-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-103-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-112-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-111-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4652-120-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4772-62-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4772-58-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4772-57-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download