remcos | d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb

General

Target

d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe
Size

502KB
MD5

d09dbfcaacc4e72dc2ff2d9119b7b9f1
SHA1

8691ac9bbabbe829446b56c73888d8a0adf0b92b
SHA256

d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb
SHA512

b263e88a053292dd0f12dffc01be23e90198fb05591bacab6471afdc9a49254c65ab560301edada29e4051f698ad8bb1de1e6563338e7ea51ca3032670f0c75f
SSDEEP

12288:B7MyjkhHoKi/5FeA7Bp8YNs8z0UTcmQo8CJsGmZ:B7M86ghxTRdJshZ

Score

10^/10

remcos remotehost discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

kezdns.pro:2404

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-X164UO
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
Remcos family
remcos

Loads dropped DLL 2 IoCs

pid	Process
2352	d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe
2352	d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Startup key = "C:\\Users\\Admin\\AppData\\Local\\Temp\\subfolder1\\Leucocytopenia.scr"	d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
4620	d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2352	d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe
4620	d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2352 set thread context of 4620	2352	d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe	83

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	d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2352	d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 4620	2352	d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe	83
PID 2352 wrote to memory of 4620	2352	d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe	83
PID 2352 wrote to memory of 4620	2352	d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe	83
PID 2352 wrote to memory of 4620	2352	d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe	83
PID 2352 wrote to memory of 4620	2352	d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe	83

C:\Users\Admin\AppData\Local\Temp\d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe
"C:\Users\Admin\AppData\Local\Temp\d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Users\Admin\AppData\Local\Temp\d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe
  "C:\Users\Admin\AppData\Local\Temp\d0625305c7cada6abafc98eca583c35ac2e25028cb63f43fee168b9bb6c5f8fb.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:4620

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\Local\Temp\nsmB0C4.tmp\System.dll

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\skovmandshilsnerne.lnk

Filesize
870B

MD5
c79dd88c789deb80826d8add3f283b99

SHA1
dbd68d2dbe684b1bc2eebb8827825e5196fbc6b6

SHA256
2cd4bbc00f12e7eea8bc7632f4a6fc1604910cd2c4861a88ae86015dbfbca1bd

SHA512
5f00d66bc828aafb7367ef628b84b9446ec573d50abd7879902e4059b9dcbbd857dc9d93ff6c86594cb97a637a229243727222bd69d9b8c833427cc3c7ee98bd

Download Submit
memory/2352-34-0x0000000076FA1000-0x00000000770C1000-memory.dmp

Filesize
1.1MB

Download
memory/2352-36-0x0000000073BF5000-0x0000000073BF6000-memory.dmp

Filesize
4KB

Download
memory/2352-35-0x0000000076FA1000-0x00000000770C1000-memory.dmp

Filesize
1.1MB

Download
memory/4620-37-0x0000000077028000-0x0000000077029000-memory.dmp

Filesize
4KB

Download
memory/4620-38-0x0000000076FA1000-0x00000000770C1000-memory.dmp

Filesize
1.1MB

Download
memory/4620-40-0x0000000000460000-0x00000000016B4000-memory.dmp

Filesize
18.3MB

Download
memory/4620-44-0x0000000000460000-0x00000000016B4000-memory.dmp

Filesize
18.3MB

Download
memory/4620-48-0x0000000076FA1000-0x00000000770C1000-memory.dmp

Filesize
1.1MB

Download
memory/4620-49-0x0000000000460000-0x00000000016B4000-memory.dmp

Filesize
18.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads