remcos | 136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94

General

Target

136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94.exe
Size

1020KB
MD5

cf267581be8473ea55c73b833a6e0dad
SHA1

b1c43239677655b821f290dbbf1be560fbbeaca9
SHA256

136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94
SHA512

3d65fb0a6536977dc30a545b018f02ebd6be27c3f4da34fac6ed55716ff83996e9f493f2497ce6f8b8e0a71a84c7b79dad3f4e3ca40e84b723bdda4592583938
SSDEEP

12288:1feDOa9rDeYSorINpj5XqkJD0QrOod7XxlW91RRep+rgRNyA55IxJ2DWzzY8:ED39v74lfGQrFUspugRNJI2DWzz9

Score

10^/10

remcos host discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

Host

C2

213.183.58.19:4000

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
read.dat
keylog_flag
false
keylog_folder
CastC
keylog_path
%AppData%
mouse_option
false
mutex
remcos_sccafsoidz
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
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

Executes dropped EXE 2 IoCs

pid	Process
2724	sbietrcl.exe
532	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2668	136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2724 set thread context of 532	2724	sbietrcl.exe	31

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 2 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	136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2668	136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94.exe
2668	136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94.exe
2668	136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94.exe
2668	136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94.exe
2668	136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94.exe
2668	136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94.exe
2724	sbietrcl.exe
2724	sbietrcl.exe
2724	sbietrcl.exe
2724	sbietrcl.exe
2724	sbietrcl.exe
2724	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2668	136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94.exe
Token: SeDebugPrivilege	2724	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2724	2668	136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94.exe	30
PID 2668 wrote to memory of 2724	2668	136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94.exe	30
PID 2668 wrote to memory of 2724	2668	136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94.exe	30
PID 2668 wrote to memory of 2724	2668	136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94.exe	30
PID 2724 wrote to memory of 532	2724	sbietrcl.exe	31
PID 2724 wrote to memory of 532	2724	sbietrcl.exe	31
PID 2724 wrote to memory of 532	2724	sbietrcl.exe	31
PID 2724 wrote to memory of 532	2724	sbietrcl.exe	31
PID 2724 wrote to memory of 532	2724	sbietrcl.exe	31
PID 2724 wrote to memory of 532	2724	sbietrcl.exe	31
PID 2724 wrote to memory of 532	2724	sbietrcl.exe	31
PID 2724 wrote to memory of 532	2724	sbietrcl.exe	31
PID 2724 wrote to memory of 532	2724	sbietrcl.exe	31
PID 2724 wrote to memory of 532	2724	sbietrcl.exe	31

C:\Users\Admin\AppData\Local\Temp\136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94.exe
"C:\Users\Admin\AppData\Local\Temp\136ef22d5bfdda144756cd42f15a285b46af11a95f823bfe13f7993c72e23e94.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2724
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    PID:532

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
cf894a4765ee019d8838bf59b50d4948

SHA1
ec0144d629196cfac95014fcaeaaf6fb655b333e

SHA256
2f91ab0e44abf303c638614e3e16660d772405676f22382c80331da4fe2a535f

SHA512
3e994fab58999790c1cd3b471eb69ff6dd32716c4749a306e935a74a2e7ee5955f384956c24be21268bbb7a317fd26656bc36c4d348892cf1e33a02bcfbdcd0f

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab7243.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe

Filesize
1.0MB

MD5
b5b9a1a6877a5aa17b627b3d2850d2dc

SHA1
04cd9ce3fd45a48c118410451d2284911faaa4e9

SHA256
aeeeab0413a5099927c968d96d360301fce74137b150f3acf82b51b463e7a2bf

SHA512
bca5530d825bbf868d11a6f353f7ee9f2ecce6d30bd02307d8488e3674537a5bc3e8f160b0cc509d8d34b5f50629e8045dd3781db06e7f3af16f015a8000be51

Download Submit
memory/532-59-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/532-49-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/532-55-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/532-45-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/532-53-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/532-51-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/532-47-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2668-12-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2668-8-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2668-11-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2668-13-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2668-32-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2668-0-0x0000000074891000-0x0000000074892000-memory.dmp

Filesize
4KB

Download
memory/2668-25-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2724-34-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2724-44-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2724-43-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2724-33-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2724-62-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads