remcos | 7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2024 02:48

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General

Target

7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe
Size

900KB
MD5

c9d033467bd4405db131e2db7dd8abbf
SHA1

31a47ebb0a372ce4dea8f9ad0d7e547816ff7103
SHA256

7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29
SHA512

08b643c8ed42b6f59d9879eff287f9cf1f11696794c084dcc337f4d893cc759868457d8ef2fc095b73aa43deec5527d12dffbbdce528a71f758e8c0af335ffc2
SSDEEP

24576:QHIlObe6kDOI8hCMghsuN3OqyDzORPW3fa:FciJ2N4spU+i

Score

10^/10

remcos lee discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

lee

lack.work.gd:3124

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
vlc
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
ios
mouse_option
false
mutex
gig-RM2DNS
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
sos
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
1096	powershell.exe
2264	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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1524 set thread context of 1020	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	105

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 5 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3312	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe
1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe
1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe
1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe
1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe
1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe
1096	powershell.exe
2264	powershell.exe
1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe
1096	powershell.exe
2264	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe
Token: SeDebugPrivilege	1096	powershell.exe
Token: SeDebugPrivilege	2264	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1020	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1524 wrote to memory of 1096	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	99
PID 1524 wrote to memory of 1096	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	99
PID 1524 wrote to memory of 1096	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	99
PID 1524 wrote to memory of 2264	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	101
PID 1524 wrote to memory of 2264	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	101
PID 1524 wrote to memory of 2264	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	101
PID 1524 wrote to memory of 3312	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	103
PID 1524 wrote to memory of 3312	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	103
PID 1524 wrote to memory of 3312	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	103
PID 1524 wrote to memory of 1020	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	105
PID 1524 wrote to memory of 1020	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	105
PID 1524 wrote to memory of 1020	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	105
PID 1524 wrote to memory of 1020	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	105
PID 1524 wrote to memory of 1020	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	105
PID 1524 wrote to memory of 1020	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	105
PID 1524 wrote to memory of 1020	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	105
PID 1524 wrote to memory of 1020	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	105
PID 1524 wrote to memory of 1020	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	105
PID 1524 wrote to memory of 1020	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	105
PID 1524 wrote to memory of 1020	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	105
PID 1524 wrote to memory of 1020	1524	7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe	105

C:\Users\Admin\AppData\Local\Temp\7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe
"C:\Users\Admin\AppData\Local\Temp\7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1524
- 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\7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1096
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\njEnUdtKgG.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2264
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\njEnUdtKgG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp11AE.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3312
- C:\Users\Admin\AppData\Local\Temp\7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe
  "C:\Users\Admin\AppData\Local\Temp\7943aab15dc5804448102c5c1fc5341b65708bff970773e25f0f27d807e90d29.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\ios\logs.dat

Filesize
144B

MD5
469066a906245c3abda66d19c36e4613

SHA1
bcd4372b4ab5280bbe89494bd65cdb4ba67da72b

SHA256
cb54f8ed41987c18c1c5d42c25cb3a6c0e45a6ba260fc271faefd82b99c48063

SHA512
c15135699023d3f1cd4354b2a75d705c4502a687526e1c10c9e9fce2078dc729657a9ebdf81deb0270ba33ac70c8e5178db526c8c06fb7b93975b87c397652a0

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
b40808a404a0d7ec4e79f5759fa05f06

SHA1
e3eb20bd72c8521f2285a6223adba6418da51ccf

SHA256
2309db0ed900e6318ce1cc10f3d510c5114e55331b117e6babc95a9b91746c29

SHA512
30e85cdbc3104fd1eeffb96e3c7fa7abbdc29eaa732778d0022e52d95e6e83eaf73bb9b3bbb572e0ad415872286df3ff0b6aea715cabc6a9b99df29019c92766

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hza0hvt0.ite.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp11AE.tmp

Filesize
1KB

MD5
1729d57d224fb430e6540243ec7f0d17

SHA1
bd5130762e2e2b370a1b5788ebcb16eb60594943

SHA256
63e1ced2b2692356881df3fb954763af6e78b352226d087ae48197fa98c2c567

SHA512
cab5a01a7e8c3005a120d4e8cb6e9c75efa76b57f95c758ce9078e699bb9b187dfa3168b2c15f48efc6a3dcb8bc8a427a9b45a16194c6cb8b809f742992c670c

Download Submit
memory/1020-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1020-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1020-106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1020-107-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1020-114-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1020-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1020-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1020-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1020-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1020-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1020-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1020-122-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1020-115-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1020-123-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1096-82-0x0000000006A40000-0x0000000006A5E000-memory.dmp

Filesize
120KB

Download
memory/1096-18-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/1096-21-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/1096-89-0x00000000079C0000-0x00000000079CE000-memory.dmp

Filesize
56KB

Download
memory/1096-62-0x00000000755E0000-0x000000007562C000-memory.dmp

Filesize
304KB

Download
memory/1096-84-0x0000000007DE0000-0x000000000845A000-memory.dmp

Filesize
6.5MB

Download
memory/1096-99-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/1096-28-0x0000000005CF0000-0x0000000005D12000-memory.dmp

Filesize
136KB

Download
memory/1096-45-0x0000000005FF0000-0x0000000006344000-memory.dmp

Filesize
3.3MB

Download
memory/1096-16-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/1096-17-0x0000000005590000-0x0000000005BB8000-memory.dmp

Filesize
6.2MB

Download
memory/1096-54-0x0000000006470000-0x000000000648E000-memory.dmp

Filesize
120KB

Download
memory/1096-55-0x00000000069F0000-0x0000000006A3C000-memory.dmp

Filesize
304KB

Download
memory/1096-15-0x0000000004ED0000-0x0000000004F06000-memory.dmp

Filesize
216KB

Download
memory/1096-83-0x0000000007460000-0x0000000007503000-memory.dmp

Filesize
652KB

Download
memory/1096-61-0x0000000007420000-0x0000000007452000-memory.dmp

Filesize
200KB

Download
memory/1524-6-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/1524-9-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/1524-10-0x00000000079F0000-0x0000000007AB0000-memory.dmp

Filesize
768KB

Download
memory/1524-3-0x0000000004EE0000-0x0000000004F72000-memory.dmp

Filesize
584KB

Download
memory/1524-52-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/1524-0-0x0000000074D5E000-0x0000000074D5F000-memory.dmp

Filesize
4KB

Download
memory/1524-8-0x0000000074D5E000-0x0000000074D5F000-memory.dmp

Filesize
4KB

Download
memory/1524-7-0x0000000005460000-0x0000000005472000-memory.dmp

Filesize
72KB

Download
memory/1524-2-0x0000000005490000-0x0000000005A34000-memory.dmp

Filesize
5.6MB

Download
memory/1524-1-0x00000000003B0000-0x0000000000496000-memory.dmp

Filesize
920KB

Download
memory/1524-5-0x0000000004E80000-0x0000000004E8A000-memory.dmp

Filesize
40KB

Download
memory/1524-4-0x0000000004F80000-0x000000000501C000-memory.dmp

Filesize
624KB

Download
memory/2264-19-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/2264-92-0x0000000007970000-0x0000000007978000-memory.dmp

Filesize
32KB

Download
memory/2264-91-0x0000000007990000-0x00000000079AA000-memory.dmp

Filesize
104KB

Download
memory/2264-90-0x0000000007890000-0x00000000078A4000-memory.dmp

Filesize
80KB

Download
memory/2264-98-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/2264-88-0x0000000007850000-0x0000000007861000-memory.dmp

Filesize
68KB

Download
memory/2264-87-0x00000000078D0000-0x0000000007966000-memory.dmp

Filesize
600KB

Download
memory/2264-86-0x00000000076C0000-0x00000000076CA000-memory.dmp

Filesize
40KB

Download
memory/2264-85-0x0000000007650000-0x000000000766A000-memory.dmp

Filesize
104KB

Download
memory/2264-63-0x00000000755E0000-0x000000007562C000-memory.dmp

Filesize
304KB

Download
memory/2264-38-0x0000000005DA0000-0x0000000005E06000-memory.dmp

Filesize
408KB

Download
memory/2264-39-0x0000000005F30000-0x0000000005F96000-memory.dmp

Filesize
408KB

Download
memory/2264-20-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download