remcos | e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f

Analysis

max time kernel
151s
max time network
158s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/03/2024, 03:02

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General

Target

e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe
Size

966KB
MD5

f3e307899834694db498e895cac1dbfc
SHA1

70b232b365656082f79d07c4c4db584d90befa6f
SHA256

e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f
SHA512

da23dd49a1ef7b281eb90ddf1c166d4f30a35d0fee2ddafcd146932e4a429669724550d3451549a852361a0d1e09362b13545cace490944dba8afbb28f4def9e
SSDEEP

12288:24CMwo4aGsl0flTM3gk1LOjUnF5r1xyJnyrO2xM3agDrkPNCT7vI1Jhc0Xr1A:mF9TMprr3yRz2i9yNk7vI1Jhc4r

Score

10^/10

remcos remotehost rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

91.92.247.97:2505

stefracino.store:2505

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
true
install_flag
false
keylog_crypt
true
keylog_file
togs.dat
keylog_flag
false
keylog_folder
stefcos
mouse_option
false
mutex
Rmc-POOUYY
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 16 IoCs

resource	yara_rule
behavioral1/memory/2300-24-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral1/memory/2300-25-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral1/memory/2300-26-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral1/memory/2300-27-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral1/memory/2300-28-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral1/memory/2300-30-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral1/memory/2300-37-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral1/memory/2300-40-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral1/memory/2300-44-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral1/memory/2300-45-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral1/memory/2300-46-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral1/memory/2300-49-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral1/memory/2300-50-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral1/memory/2300-51-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral1/memory/2300-52-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral1/memory/2300-53-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM

Detects executables packed with SmartAssembly 1 IoCs

resource	yara_rule
behavioral1/memory/2692-4-0x0000000000400000-0x000000000040C000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2692 set thread context of 2300	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	34

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
2756	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe
2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe
2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe
2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe
2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe
2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe
2512	powershell.exe
2448	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2300	vbc.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe
Token: SeDebugPrivilege	2512	powershell.exe
Token: SeDebugPrivilege	2448	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2512	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	28
PID 2692 wrote to memory of 2512	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	28
PID 2692 wrote to memory of 2512	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	28
PID 2692 wrote to memory of 2512	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	28
PID 2692 wrote to memory of 2448	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	30
PID 2692 wrote to memory of 2448	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	30
PID 2692 wrote to memory of 2448	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	30
PID 2692 wrote to memory of 2448	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	30
PID 2692 wrote to memory of 2756	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	32
PID 2692 wrote to memory of 2756	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	32
PID 2692 wrote to memory of 2756	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	32
PID 2692 wrote to memory of 2756	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	32
PID 2692 wrote to memory of 2300	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	34
PID 2692 wrote to memory of 2300	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	34
PID 2692 wrote to memory of 2300	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	34
PID 2692 wrote to memory of 2300	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	34
PID 2692 wrote to memory of 2300	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	34
PID 2692 wrote to memory of 2300	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	34
PID 2692 wrote to memory of 2300	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	34
PID 2692 wrote to memory of 2300	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	34
PID 2692 wrote to memory of 2300	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	34
PID 2692 wrote to memory of 2300	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	34
PID 2692 wrote to memory of 2300	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	34
PID 2692 wrote to memory of 2300	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	34
PID 2692 wrote to memory of 2300	2692	e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe	34

C:\Users\Admin\AppData\Local\Temp\e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe
"C:\Users\Admin\AppData\Local\Temp\e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2692
- 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\e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2512
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UlvywtFnmZtH.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2448
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UlvywtFnmZtH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8102.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2756
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2300

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scripting

T1064

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Scripting

T1064

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8102.tmp

Filesize
1KB

MD5
b338ed8878f6e1471e061dde45f83012

SHA1
d65949ace7b565f4ae10148d25a99b10cc781605

SHA256
39da6e37b3cca8829b88ae87e09b778601e7b8d3349fd1e9e2eacaaf51785d8b

SHA512
cf4ff805781421ac9b62c6d1a8d185263b3053bb1d5e7e031b380c048499a542fe515d7aac5e24bbba70a9abe2e06f39d8310047a17e12924ba6137f2dfd4e28

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\DGI57YB65A3WM4WJXDQL.temp

Filesize
7KB

MD5
a6af3b43d80e72435b0c1f27f1a5c7a4

SHA1
06a119dd65970172717b7fc9832828ed913907c2

SHA256
8b545467e0426b3772806d4caed1a1d04156a0586200e5623d301a664bc0bee1

SHA512
4e24640812054b90839aa45125e596a82018ad45985977e054413a8ea500ce89d14d91c0b7ec5ffa07036ed6100caec2c66b36f17ac9a83bb157abef5e8bde15

Download Submit
memory/2300-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2300-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2300-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2300-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2300-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2300-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2300-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2300-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2300-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2300-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2300-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2300-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2300-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2300-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2300-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2300-29-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2300-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2300-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2300-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2300-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2448-33-0x000000006DFB0000-0x000000006E55B000-memory.dmp

Filesize
5.7MB

Download
memory/2448-47-0x000000006DFB0000-0x000000006E55B000-memory.dmp

Filesize
5.7MB

Download
memory/2448-39-0x0000000002550000-0x0000000002590000-memory.dmp

Filesize
256KB

Download
memory/2448-38-0x000000006DFB0000-0x000000006E55B000-memory.dmp

Filesize
5.7MB

Download
memory/2448-42-0x0000000002550000-0x0000000002590000-memory.dmp

Filesize
256KB

Download
memory/2448-35-0x0000000002550000-0x0000000002590000-memory.dmp

Filesize
256KB

Download
memory/2512-34-0x000000006DFB0000-0x000000006E55B000-memory.dmp

Filesize
5.7MB

Download
memory/2512-41-0x0000000002550000-0x0000000002590000-memory.dmp

Filesize
256KB

Download
memory/2512-36-0x000000006DFB0000-0x000000006E55B000-memory.dmp

Filesize
5.7MB

Download
memory/2512-48-0x000000006DFB0000-0x000000006E55B000-memory.dmp

Filesize
5.7MB

Download
memory/2692-0-0x00000000001B0000-0x00000000002A6000-memory.dmp

Filesize
984KB

Download
memory/2692-3-0x0000000000360000-0x0000000000372000-memory.dmp

Filesize
72KB

Download
memory/2692-32-0x0000000074390000-0x0000000074A7E000-memory.dmp

Filesize
6.9MB

Download
memory/2692-18-0x0000000074390000-0x0000000074A7E000-memory.dmp

Filesize
6.9MB

Download
memory/2692-1-0x0000000074390000-0x0000000074A7E000-memory.dmp

Filesize
6.9MB

Download
memory/2692-2-0x0000000004E40000-0x0000000004E80000-memory.dmp

Filesize
256KB

Download
memory/2692-5-0x00000000053D0000-0x0000000005490000-memory.dmp

Filesize
768KB

Download
memory/2692-4-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download