remcos | 5073eadffdcbba2f5bd8a67828f812a7272541295de57a5e61d8b75b25122629

General

Target

5073eadffdcbba2f5bd8a67828f812a7272541295de57a5e61d8b75b25122629.exe
Size

1.3MB
MD5

358ec1b6439850f0bb6ccad7131cf347
SHA1

a8e6f81f044051e6cdc829e99a31be3d6a7d6779
SHA256

5073eadffdcbba2f5bd8a67828f812a7272541295de57a5e61d8b75b25122629
SHA512

5d95aed5645d975f243bda9d1fe624f8b83ee4255974eb6bc2db78cc42e80d97b4056f959fcbe2cfeb59a7db40ecd4a8ca35c8c4e141494546b850eacc72e799
SSDEEP

24576:rAOcZEhGZJLnKjCT+8RrtqrpUu8sR0coTvAiHca6TPY5I7nT1RMwa+NI:tMZU/SrtqrpccOv/HP6c5IzTXM7+NI

Score

10^/10

remcos october-$$$$discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

OCTOBER-$$$$

C2

mgc0147.hopto.org:2930

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-3MPDYA
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
take_screenshot_title
notepad;solitaire;

Signatures

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

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

bmxbniuglo.pif5073eadffdcbba2f5bd8a67828f812a7272541295de57a5e61d8b75b25122629.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	bmxbniuglo.pif
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	5073eadffdcbba2f5bd8a67828f812a7272541295de57a5e61d8b75b25122629.exe

Executes dropped EXE 2 IoCs

Processes:

bmxbniuglo.pifRegSvcs.exe

pid process

3136 bmxbniuglo.pif
4404 RegSvcs.exe

pid	process
3136	bmxbniuglo.pif
4404	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

bmxbniuglo.pif

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WindowsUpdate = "c:\\45235440\\BMXBNI~1.PIF c:\\45235440\\JIFVHS~1.TCL"	bmxbniuglo.pif

Suspicious use of SetThreadContext 1 IoCs

Processes:

bmxbniuglo.pif

description pid process target process

PID 3136 set thread context of 4404 3136 bmxbniuglo.pif RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 3136 set thread context of 4404	3136	bmxbniuglo.pif	RegSvcs.exe

System Location Discovery: System Language Discovery 1 TTPs 9 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

Processes:

5073eadffdcbba2f5bd8a67828f812a7272541295de57a5e61d8b75b25122629.exemshta.exemshta.exemshta.exemshta.exemshta.exebmxbniuglo.pifmshta.exemshta.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5073eadffdcbba2f5bd8a67828f812a7272541295de57a5e61d8b75b25122629.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mshta.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mshta.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mshta.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mshta.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mshta.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bmxbniuglo.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mshta.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mshta.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

bmxbniuglo.pif

pid process

3136 bmxbniuglo.pif
3136 bmxbniuglo.pif
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid process

4404 RegSvcs.exe

pid	process
3136	bmxbniuglo.pif
3136	bmxbniuglo.pif

pid	process
4404	RegSvcs.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

5073eadffdcbba2f5bd8a67828f812a7272541295de57a5e61d8b75b25122629.exebmxbniuglo.pif

description	pid	process	target process
PID 1916 wrote to memory of 3136	1916	5073eadffdcbba2f5bd8a67828f812a7272541295de57a5e61d8b75b25122629.exe	bmxbniuglo.pif
PID 1916 wrote to memory of 3136	1916	5073eadffdcbba2f5bd8a67828f812a7272541295de57a5e61d8b75b25122629.exe	bmxbniuglo.pif
PID 1916 wrote to memory of 3136	1916	5073eadffdcbba2f5bd8a67828f812a7272541295de57a5e61d8b75b25122629.exe	bmxbniuglo.pif
PID 3136 wrote to memory of 220	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 220	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 220	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 4904	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 4904	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 4904	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 2860	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 2860	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 2860	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 3432	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 3432	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 3432	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 4832	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 4832	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 4832	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 1680	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 1680	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 1680	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 1316	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 1316	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 1316	3136	bmxbniuglo.pif	mshta.exe
PID 3136 wrote to memory of 4404	3136	bmxbniuglo.pif	RegSvcs.exe
PID 3136 wrote to memory of 4404	3136	bmxbniuglo.pif	RegSvcs.exe
PID 3136 wrote to memory of 4404	3136	bmxbniuglo.pif	RegSvcs.exe
PID 3136 wrote to memory of 4404	3136	bmxbniuglo.pif	RegSvcs.exe
PID 3136 wrote to memory of 4404	3136	bmxbniuglo.pif	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\5073eadffdcbba2f5bd8a67828f812a7272541295de57a5e61d8b75b25122629.exe
"C:\Users\Admin\AppData\Local\Temp\5073eadffdcbba2f5bd8a67828f812a7272541295de57a5e61d8b75b25122629.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1916
- C:\45235440\bmxbniuglo.pif
  "C:\45235440\bmxbniuglo.pif" jifvhstup.tcl
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3136
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:220
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4904
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2860
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3432
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4832
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1680
- - C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1316
- - C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    PID:4404

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

Query Registry

1

T1012

System Information Discovery

2

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:\45235440\bmxbniuglo.pif

Filesize
759KB

MD5
8e699954f6b5d64683412cc560938507

SHA1
8ca6708b0f158eacce3ac28b23c23ed42c168c29

SHA256
c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40

SHA512
13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02

Download Submit
C:\45235440\cpuclokd.ini

Filesize
56KB

MD5
8b670b655cf5bdbec4e8bf031a5c303a

SHA1
446d41c4e7a03d7e21261b52bc42a499e78697e8

SHA256
58ffca8fbe9fe189e29909b12d8306af25dcea9b98af76167905d3f7d27555f1

SHA512
d95918f4a5fd2649298b1218d4e62e8339d59eda01a47708c2934bbec6d7f0e16f68a8abc27c178dfe117c73a4e36083d1ca58e106900bde945179b1440fcffc

Download Submit
C:\45235440\qtbjvco.vjk

Filesize
919KB

MD5
03371574057f34d8f0cd8b857234477e

SHA1
fabea7c051eb26d402e42be3279c24b51243172e

SHA256
1093ea8b90ac829a7ca7058f5e7aafb74012a331090e52c3f2e7229a70895f08

SHA512
82b25daf3662746f1d009c2ee2bc1f01715389d5545d883f3c795a8557d5796711f49840fbb5728081fd22203e961a82225f70a75ee7c2d29d1664c68f0f6f54

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe

Filesize
44KB

MD5
9d352bc46709f0cb5ec974633a0c3c94

SHA1
1969771b2f022f9a86d77ac4d4d239becdf08d07

SHA256
2c1eeb7097023c784c2bd040a2005a5070ed6f3a4abf13929377a9e39fab1390

SHA512
13c714244ec56beeb202279e4109d59c2a43c3cf29f90a374a751c04fd472b45228ca5a0178f41109ed863dbd34e0879e4a21f5e38ae3d89559c57e6be990a9b

Download Submit
C:\Users\Admin\AppData\Roaming\remcos\logs.dat

Filesize
148B

MD5
1a72d3be86746d5ba81bdf6cf4b4f097

SHA1
a36354d1eed4bc5d285722ba2bb3508a9625c27e

SHA256
8e3c7839b0ad5724b470584a971a00b27ef6624974ffe1a92b2c8070cb297ae1

SHA512
bdd933cac30833dd164fad19aceb823fce1177f561ed28999edce62811721b44fcf789fd3d3c52fab94749c1445cfdc986d55f19e0e62a9f3c6f4b48b71f8f76

Download Submit
memory/4404-81-0x0000000001350000-0x00000000019A7000-memory.dmp

Filesize
6.3MB

Download
memory/4404-87-0x0000000001350000-0x00000000019A7000-memory.dmp

Filesize
6.3MB

Download
memory/4404-84-0x0000000001350000-0x00000000019A7000-memory.dmp

Filesize
6.3MB

Download
memory/4404-83-0x0000000001350000-0x00000000019A7000-memory.dmp

Filesize
6.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads