remcos | 45cc400d38a6a3de5075d593718a2b63deddfc20fd97107cf01c0c0bee341adc

General

Target

06bd75f1686847255ba61a86ef69eb8a.exe
Size

5.1MB
MD5

06bd75f1686847255ba61a86ef69eb8a
SHA1

e11abefa20031ce5f497fcb59c57e2f143a81e38
SHA256

45cc400d38a6a3de5075d593718a2b63deddfc20fd97107cf01c0c0bee341adc
SHA512

eb7e035aab6b1c5496dc8cebd5bb700ecf3d761747814ed8fc9a8534f989c3c84854f6878b0d076a13ca0d2d10413c10828cbb043e052566129c7c73a23bf8a7
SSDEEP

49152:k9C6IGwcuCr4SOgkpEEd6HninHFdrSgoQt171nYQo7uK2oaAXIi847dmjPU7n+at:kM6FDEdjl46JHElSYwkaEIm7x/

Score

10^/10

remcos voltarger discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

Voltarger

C2

dfgdfghghfhfh.con-ip.com:1665

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
Rmc-I3REIW
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SprintDesignerEditor = "C:\\Users\\Admin\\Music\\SprintDesignerUpdater\\SprintVideoOculus.exe"	06bd75f1686847255ba61a86ef69eb8a.exe

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	06bd75f1686847255ba61a86ef69eb8a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	06bd75f1686847255ba61a86ef69eb8a.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4064	06bd75f1686847255ba61a86ef69eb8a.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4748 wrote to memory of 4064	4748	06bd75f1686847255ba61a86ef69eb8a.exe	86
PID 4748 wrote to memory of 4064	4748	06bd75f1686847255ba61a86ef69eb8a.exe	86
PID 4748 wrote to memory of 4064	4748	06bd75f1686847255ba61a86ef69eb8a.exe	86
PID 4748 wrote to memory of 4064	4748	06bd75f1686847255ba61a86ef69eb8a.exe	86
PID 4748 wrote to memory of 4064	4748	06bd75f1686847255ba61a86ef69eb8a.exe	86

C:\Users\Admin\AppData\Local\Temp\06bd75f1686847255ba61a86ef69eb8a.exe
"C:\Users\Admin\AppData\Local\Temp\06bd75f1686847255ba61a86ef69eb8a.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4748
- C:\Users\Admin\AppData\Local\Temp\06bd75f1686847255ba61a86ef69eb8a.exe
  "C:\Users\Admin\AppData\Local\Temp\06bd75f1686847255ba61a86ef69eb8a.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4064

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 Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
12fe19da88672d8b8fe97088391e0e6f

SHA1
de188b251f0f0cd3a2048e84d15fad7351701e09

SHA256
97cd5b24736e6a7df83232d8190e17ec424e21f6e8bd095fb6a5c015df1f1a83

SHA512
3010946f9439d807fbc3ecbd7cd25fab12f87c677d444a6200f5faa6ccc9f73e895d4ad5ac1591bb23fa4da743048b9ea1fbdc2d44b10378b4623daf376277e2

Download Submit
memory/4064-31-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4064-65-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4064-17-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4064-64-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4064-57-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4064-7-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4064-56-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4064-12-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4064-11-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4064-16-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4064-13-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4064-39-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4064-19-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4064-21-0x0000000000400000-0x0000000000AD7000-memory.dmp

Filesize
6.8MB

Download
memory/4064-32-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4064-18-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4064-20-0x00000000000D0000-0x0000000000152000-memory.dmp

Filesize
520KB

Download
memory/4748-3-0x0000000000400000-0x0000000000AD7000-memory.dmp

Filesize
6.8MB

Download
memory/4748-25-0x0000000000724000-0x000000000073C000-memory.dmp

Filesize
96KB

Download
memory/4748-2-0x0000000000724000-0x000000000073C000-memory.dmp

Filesize
96KB

Download
memory/4748-0-0x0000000000400000-0x0000000000AD7000-memory.dmp

Filesize
6.8MB

Download
memory/4748-4-0x0000000000400000-0x0000000000AD7000-memory.dmp

Filesize
6.8MB

Download
memory/4748-10-0x0000000000400000-0x0000000000AD7000-memory.dmp

Filesize
6.8MB

Download
memory/4748-8-0x0000000000400000-0x0000000000AD7000-memory.dmp

Filesize
6.8MB

Download
memory/4748-6-0x0000000000400000-0x0000000000AD7000-memory.dmp

Filesize
6.8MB

Download
memory/4748-1-0x0000000000400000-0x0000000000AD7000-memory.dmp

Filesize
6.8MB

Download
memory/4748-9-0x0000000000400000-0x0000000000AD7000-memory.dmp

Filesize
6.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads