remcos | e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736

General

Target

e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
Size

1.5MB
MD5

727ef110c7a27f21d4bbfc8b0e2edd92
SHA1

6e05d62821268c5d783d53ccde347b9a6ca588c8
SHA256

e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736
SHA512

661a0b4005a001e01e62d33ff05650ebad1164a9845aa5b2a9ec277e061acb798bd3ab04cd41335c15db694b13a00d9d31f3428120bc7e1af17aa78e3b8e310a
SSDEEP

24576:2D39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjoc:2p7E+QrFUBgq2R

Score

10^/10

remcos host 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

detects Windows exceutables potentially bypassing UAC using eventvwr.exe 1 IoCs

resource	yara_rule
behavioral2/memory/1416-35-0x0000000000730000-0x0000000000747000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe

Executes dropped EXE 2 IoCs

pid	Process
2380	sbietrcl.exe
1416	sbietrcl.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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2380 set thread context of 1416	2380	sbietrcl.exe	97

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
3708	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
3708	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
3708	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
3708	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
3708	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
3708	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
2380	sbietrcl.exe
2380	sbietrcl.exe
2380	sbietrcl.exe
2380	sbietrcl.exe
2380	sbietrcl.exe
2380	sbietrcl.exe
2380	sbietrcl.exe
2380	sbietrcl.exe
2380	sbietrcl.exe
2380	sbietrcl.exe
2380	sbietrcl.exe
2380	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3708	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
Token: SeDebugPrivilege	2380	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3708 wrote to memory of 2380	3708	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe	95
PID 3708 wrote to memory of 2380	3708	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe	95
PID 3708 wrote to memory of 2380	3708	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe	95
PID 2380 wrote to memory of 1416	2380	sbietrcl.exe	97
PID 2380 wrote to memory of 1416	2380	sbietrcl.exe	97
PID 2380 wrote to memory of 1416	2380	sbietrcl.exe	97
PID 2380 wrote to memory of 1416	2380	sbietrcl.exe	97
PID 2380 wrote to memory of 1416	2380	sbietrcl.exe	97
PID 2380 wrote to memory of 1416	2380	sbietrcl.exe	97
PID 2380 wrote to memory of 1416	2380	sbietrcl.exe	97
PID 2380 wrote to memory of 1416	2380	sbietrcl.exe	97
PID 2380 wrote to memory of 1416	2380	sbietrcl.exe	97

C:\Users\Admin\AppData\Local\Temp\e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
"C:\Users\Admin\AppData\Local\Temp\e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3708
- 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
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2380
- - 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:1416

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4136 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
1⤵
PID:1500

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
1.5MB

MD5
1baa03b303575edaeb617fff1ea2aa67

SHA1
b32a48ff6498849d2151672047d5657e75d0d3e0

SHA256
cae8c3fdd0eb76df0aec81c2b19d3c1eb66ac8124c2260a91aae2857230c5038

SHA512
8eaf3f8d53f87109cd58b216a44ccd7f5542ecf4f143e1579ae83975b474181c9e91bb90797f2ca4ce3bdd9f61d3cda752c66e2de0f9a1df1d5226913bdef26d

Download Submit
memory/1416-35-0x0000000000730000-0x0000000000747000-memory.dmp

Filesize
92KB

Download
memory/2380-30-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download
memory/2380-39-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download
memory/2380-32-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download
memory/2380-31-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download
memory/3708-5-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download
memory/3708-28-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download
memory/3708-29-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download
memory/3708-6-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download
memory/3708-0-0x00000000749C2000-0x00000000749C3000-memory.dmp

Filesize
4KB

Download
memory/3708-2-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download
memory/3708-1-0x00000000749C0000-0x0000000074F71000-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