remcos | 802838172640a2ed4ea87b5ecbfd07629e151f25ae46e1c03d3ae11b0f78add6

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
25-11-2024 11:47

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General

Target

DHL AWB_NO_9078538809.exe
Size

939KB
MD5

0e317b92296b874f54a63b7ce8ef3c65
SHA1

a2c482fc7c9fea2543fac305fc4857ed6ddb8ac4
SHA256

802838172640a2ed4ea87b5ecbfd07629e151f25ae46e1c03d3ae11b0f78add6
SHA512

ca5de1bb5bf884b28857229419371faa73d0d3570c465f19906409aebd7c821c3c5a68655e6cec8289b39cb922ca6a0fe9eb0be40c186df06448e959d0a57a99
SSDEEP

24576:VUJe35eXoREhAiOsBVdYZVB4fUtPgtmNxS3Ah77Q4cLSqc6w3:Gm1RIb3dYZVumowSG/rcLSqc6w3

Score

10^/10

remcos win discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

win

windowsupdateserveraug.duckdns.org:45682

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
msc-XYOFLE
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

Signatures

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

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
4688	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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	DHL AWB_NO_9078538809.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4380 set thread context of 1724	4380	DHL AWB_NO_9078538809.exe	94

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 4 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	DHL AWB_NO_9078538809.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DHL AWB_NO_9078538809.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
2128	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4380	DHL AWB_NO_9078538809.exe
4380	DHL AWB_NO_9078538809.exe
4688	powershell.exe
4688	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4688	powershell.exe
Token: SeDebugPrivilege	4380	DHL AWB_NO_9078538809.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4380 wrote to memory of 4688	4380	DHL AWB_NO_9078538809.exe	89
PID 4380 wrote to memory of 4688	4380	DHL AWB_NO_9078538809.exe	89
PID 4380 wrote to memory of 4688	4380	DHL AWB_NO_9078538809.exe	89
PID 4380 wrote to memory of 2128	4380	DHL AWB_NO_9078538809.exe	91
PID 4380 wrote to memory of 2128	4380	DHL AWB_NO_9078538809.exe	91
PID 4380 wrote to memory of 2128	4380	DHL AWB_NO_9078538809.exe	91
PID 4380 wrote to memory of 3268	4380	DHL AWB_NO_9078538809.exe	93
PID 4380 wrote to memory of 3268	4380	DHL AWB_NO_9078538809.exe	93
PID 4380 wrote to memory of 3268	4380	DHL AWB_NO_9078538809.exe	93
PID 4380 wrote to memory of 1724	4380	DHL AWB_NO_9078538809.exe	94
PID 4380 wrote to memory of 1724	4380	DHL AWB_NO_9078538809.exe	94
PID 4380 wrote to memory of 1724	4380	DHL AWB_NO_9078538809.exe	94
PID 4380 wrote to memory of 1724	4380	DHL AWB_NO_9078538809.exe	94
PID 4380 wrote to memory of 1724	4380	DHL AWB_NO_9078538809.exe	94
PID 4380 wrote to memory of 1724	4380	DHL AWB_NO_9078538809.exe	94
PID 4380 wrote to memory of 1724	4380	DHL AWB_NO_9078538809.exe	94
PID 4380 wrote to memory of 1724	4380	DHL AWB_NO_9078538809.exe	94
PID 4380 wrote to memory of 1724	4380	DHL AWB_NO_9078538809.exe	94
PID 4380 wrote to memory of 1724	4380	DHL AWB_NO_9078538809.exe	94
PID 4380 wrote to memory of 1724	4380	DHL AWB_NO_9078538809.exe	94
PID 4380 wrote to memory of 1724	4380	DHL AWB_NO_9078538809.exe	94

C:\Users\Admin\AppData\Local\Temp\DHL AWB_NO_9078538809.exe
"C:\Users\Admin\AppData\Local\Temp\DHL AWB_NO_9078538809.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:4380
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\GAmFKUIDBo.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4688
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GAmFKUIDBo" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF77F.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2128
- C:\Users\Admin\AppData\Local\Temp\DHL AWB_NO_9078538809.exe
  "C:\Users\Admin\AppData\Local\Temp\DHL AWB_NO_9078538809.exe"
  2⤵
  PID:3268
- C:\Users\Admin\AppData\Local\Temp\DHL AWB_NO_9078538809.exe
  "C:\Users\Admin\AppData\Local\Temp\DHL AWB_NO_9078538809.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1724

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:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0gvdopzb.1ot.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF77F.tmp

Filesize
1KB

MD5
fac3c69842bcf3ca7ccb33ee1dfccd57

SHA1
490783080466f48400b09c69a8a26500fd45fd81

SHA256
c50d3984b64800d77b35b2a635d55fd8c4793542739b8c366f9e221ce7d7bdb9

SHA512
67234e2461020a51cec10cc4784a539ebb701f63b16ac5cf67b53a4e77dc4dcb52b29f0f50db00dbb4a43fb1346da5a8f31ba669a09dee548d454d70a1c7ba55

Download Submit
memory/1724-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1724-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1724-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1724-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1724-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1724-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1724-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1724-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1724-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1724-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1724-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1724-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1724-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1724-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1724-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1724-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1724-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1724-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4380-10-0x0000000006D40000-0x0000000006E00000-memory.dmp

Filesize
768KB

Download
memory/4380-9-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/4380-8-0x000000007533E000-0x000000007533F000-memory.dmp

Filesize
4KB

Download
memory/4380-7-0x00000000054B0000-0x00000000054CC000-memory.dmp

Filesize
112KB

Download
memory/4380-6-0x00000000054F0000-0x000000000558C000-memory.dmp

Filesize
624KB

Download
memory/4380-4-0x0000000005210000-0x000000000521A000-memory.dmp

Filesize
40KB

Download
memory/4380-5-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/4380-40-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/4380-3-0x0000000005270000-0x0000000005302000-memory.dmp

Filesize
584KB

Download
memory/4380-2-0x0000000005820000-0x0000000005DC4000-memory.dmp

Filesize
5.6MB

Download
memory/4380-1-0x0000000000760000-0x0000000000850000-memory.dmp

Filesize
960KB

Download
memory/4380-0-0x000000007533E000-0x000000007533F000-memory.dmp

Filesize
4KB

Download
memory/4688-41-0x00000000060F0000-0x000000000610E000-memory.dmp

Filesize
120KB

Download
memory/4688-55-0x00000000066E0000-0x00000000066FE000-memory.dmp

Filesize
120KB

Download
memory/4688-56-0x00000000072F0000-0x0000000007393000-memory.dmp

Filesize
652KB

Download
memory/4688-58-0x0000000007420000-0x000000000743A000-memory.dmp

Filesize
104KB

Download
memory/4688-57-0x0000000007A60000-0x00000000080DA000-memory.dmp

Filesize
6.5MB

Download
memory/4688-59-0x0000000007490000-0x000000000749A000-memory.dmp

Filesize
40KB

Download
memory/4688-60-0x00000000076A0000-0x0000000007736000-memory.dmp

Filesize
600KB

Download
memory/4688-61-0x0000000007620000-0x0000000007631000-memory.dmp

Filesize
68KB

Download
memory/4688-62-0x0000000007650000-0x000000000765E000-memory.dmp

Filesize
56KB

Download
memory/4688-63-0x0000000007660000-0x0000000007674000-memory.dmp

Filesize
80KB

Download
memory/4688-64-0x0000000007760000-0x000000000777A000-memory.dmp

Filesize
104KB

Download
memory/4688-65-0x0000000007740000-0x0000000007748000-memory.dmp

Filesize
32KB

Download
memory/4688-68-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/4688-44-0x00000000072B0000-0x00000000072E2000-memory.dmp

Filesize
200KB

Download
memory/4688-45-0x0000000075BE0000-0x0000000075C2C000-memory.dmp

Filesize
304KB

Download
memory/4688-42-0x0000000006140000-0x000000000618C000-memory.dmp

Filesize
304KB

Download
memory/4688-21-0x0000000005130000-0x0000000005152000-memory.dmp

Filesize
136KB

Download
memory/4688-25-0x0000000005AC0000-0x0000000005B26000-memory.dmp

Filesize
408KB

Download
memory/4688-39-0x0000000005B30000-0x0000000005E84000-memory.dmp

Filesize
3.3MB

Download
memory/4688-24-0x00000000059A0000-0x0000000005A06000-memory.dmp

Filesize
408KB

Download
memory/4688-20-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/4688-19-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/4688-17-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/4688-18-0x0000000005200000-0x0000000005828000-memory.dmp

Filesize
6.2MB

Download
memory/4688-15-0x00000000027F0000-0x0000000002826000-memory.dmp

Filesize
216KB

Download