remcos | a16eec9f4ca26138e11dcf47d7e632de525b87d98869455b28b3fd29aa0789c0

General

Target

PANAS QUOTATION INV_280121,pdf.exe
Size

1.0MB
MD5

7f205f8e299ffcf9d303adb6db85d21a
SHA1

bfe3918bf2a59497ba17621399f4ebb540a1d8a6
SHA256

d490b85539a2a3ae13c2e68bada84965fca6c3eb40281f70206d4ef975e592e7
SHA512

3e26cdc1db4e4b969c34b3f22e6379ce44833b95eb619038cec91a055d8504e203be9d440ec01c983aa0eb242de7bb0b1d5afe8f66c1ff800f4762a3f8c1c861
SSDEEP

12288:6aqVennKcOqfu19Xlxo8PfEiwQnT+2n5BtqKuCwaB4uCwaBKOMppwjtQ6k2FggbB:GInRuXlRxT+MBtq9ZatZaX

Score

10^/10

remcos blessed discovery rat

Malware Config

Extracted

Family

remcos

Version

2.7.2 Pro

Botnet

BLESSED

C2

prayerarequesttojah.ddns.net:4344

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-4AD74M
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
wikipedia;solitaire;

Signatures

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

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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	PANAS QUOTATION INV_280121,pdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4512 set thread context of 5044	4512	PANAS QUOTATION INV_280121,pdf.exe	102

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 3 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	PANAS QUOTATION INV_280121,pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PANAS QUOTATION INV_280121,pdf.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1844	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4512	PANAS QUOTATION INV_280121,pdf.exe
4512	PANAS QUOTATION INV_280121,pdf.exe
4512	PANAS QUOTATION INV_280121,pdf.exe
4512	PANAS QUOTATION INV_280121,pdf.exe
4512	PANAS QUOTATION INV_280121,pdf.exe
4512	PANAS QUOTATION INV_280121,pdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4512	PANAS QUOTATION INV_280121,pdf.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4512 wrote to memory of 1844	4512	PANAS QUOTATION INV_280121,pdf.exe	99
PID 4512 wrote to memory of 1844	4512	PANAS QUOTATION INV_280121,pdf.exe	99
PID 4512 wrote to memory of 1844	4512	PANAS QUOTATION INV_280121,pdf.exe	99
PID 4512 wrote to memory of 4856	4512	PANAS QUOTATION INV_280121,pdf.exe	101
PID 4512 wrote to memory of 4856	4512	PANAS QUOTATION INV_280121,pdf.exe	101
PID 4512 wrote to memory of 4856	4512	PANAS QUOTATION INV_280121,pdf.exe	101
PID 4512 wrote to memory of 5044	4512	PANAS QUOTATION INV_280121,pdf.exe	102
PID 4512 wrote to memory of 5044	4512	PANAS QUOTATION INV_280121,pdf.exe	102
PID 4512 wrote to memory of 5044	4512	PANAS QUOTATION INV_280121,pdf.exe	102
PID 4512 wrote to memory of 5044	4512	PANAS QUOTATION INV_280121,pdf.exe	102
PID 4512 wrote to memory of 5044	4512	PANAS QUOTATION INV_280121,pdf.exe	102
PID 4512 wrote to memory of 5044	4512	PANAS QUOTATION INV_280121,pdf.exe	102
PID 4512 wrote to memory of 5044	4512	PANAS QUOTATION INV_280121,pdf.exe	102
PID 4512 wrote to memory of 5044	4512	PANAS QUOTATION INV_280121,pdf.exe	102
PID 4512 wrote to memory of 5044	4512	PANAS QUOTATION INV_280121,pdf.exe	102
PID 4512 wrote to memory of 5044	4512	PANAS QUOTATION INV_280121,pdf.exe	102

C:\Users\Admin\AppData\Local\Temp\PANAS QUOTATION INV_280121,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PANAS QUOTATION INV_280121,pdf.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4512
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZpytXeVQlNW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1279.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1844
- C:\Users\Admin\AppData\Local\Temp\PANAS QUOTATION INV_280121,pdf.exe
  "{path}"
  2⤵
  PID:4856
- C:\Users\Admin\AppData\Local\Temp\PANAS QUOTATION INV_280121,pdf.exe
  "{path}"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5044

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

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:\Users\Admin\AppData\Local\Temp\tmp1279.tmp

Filesize
1KB

MD5
a476066787ad6a9ad937f95ef187d6b1

SHA1
9455c4ee7a21b7950eb723d95b49ad22656ee923

SHA256
e0737302f0a92768639a335bc7f07938ae29f9215f1356fd9c557dc23b20b415

SHA512
7d091fd0594d0a380f91246f4d5914527f9d0f65ad43996c19dd61062fc468c7c52c13ca034785dfa282510086bca1354aa7a8c1badae6832efa5f07a18e0c2f

Download Submit
memory/4512-6-0x0000000004AA0000-0x0000000004AAA000-memory.dmp

Filesize
40KB

Download
memory/4512-2-0x0000000007C60000-0x0000000008204000-memory.dmp

Filesize
5.6MB

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memory/4512-3-0x0000000074CF0000-0x00000000754A0000-memory.dmp

Filesize
7.7MB

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memory/4512-4-0x0000000007850000-0x00000000078E2000-memory.dmp

Filesize
584KB

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memory/4512-5-0x0000000004A80000-0x0000000004A8A000-memory.dmp

Filesize
40KB

Download
memory/4512-19-0x0000000074CF0000-0x00000000754A0000-memory.dmp

Filesize
7.7MB

Download
memory/4512-7-0x0000000074CFE000-0x0000000074CFF000-memory.dmp

Filesize
4KB

Download
memory/4512-8-0x0000000074CF0000-0x00000000754A0000-memory.dmp

Filesize
7.7MB

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memory/4512-9-0x0000000008D40000-0x0000000008D86000-memory.dmp

Filesize
280KB

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memory/4512-10-0x0000000008E20000-0x0000000008EBC000-memory.dmp

Filesize
624KB

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memory/4512-1-0x0000000000500000-0x000000000060C000-memory.dmp

Filesize
1.0MB

Download
memory/4512-0-0x0000000074CFE000-0x0000000074CFF000-memory.dmp

Filesize
4KB

Download
memory/5044-14-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

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memory/5044-17-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

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memory/5044-20-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5044-18-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5044-21-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5044-22-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5044-23-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5044-24-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5044-28-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5044-30-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5044-34-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5044-40-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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