remcos | 9e7777ce012fbc01a5172047ee65c37090c5353fa097a8e9b3e2cb698ada8bdf

General

Target

PROFORMA-AG899028299309,pdf.exe
Size

605KB
MD5

b6dea0dde2a8c9454ec7be52f988836f
SHA1

1d14d589cb7a9dae380b9a744f8f344ec7d1ac53
SHA256

e8770a2ea55bb36957d75953d67a2d6b740c79e2d3c9a18cff37edf02b76f1cc
SHA512

200109b60d4a85ece501c32bc0fb9f244a401cb8d550d992edbe7db36478cf14ea137fbde36daa60f73f8b912f8db8a02d2688981fc0d2e8fcfa2d1eeca86a68
SSDEEP

12288:HwyEr7szOVdbKqD8QjyX/77ZZpe7WLHqY3jeooNdY45OV:TFzO/bK0Wj7Be7AKmqNd1K

Score

10^/10

remcos run am 4 us discovery rat

Malware Config

Extracted

Family

remcos

Version

2.7.2 Pro

Botnet

Run am 4 Us

C2

bigfish2345.ddns.net:8583

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-STH1F0
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2608 set thread context of 1980	2608	PROFORMA-AG899028299309,pdf.exe	31

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	PROFORMA-AG899028299309,pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
1748	schtasks.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2608 wrote to memory of 1748	2608	PROFORMA-AG899028299309,pdf.exe	29
PID 2608 wrote to memory of 1748	2608	PROFORMA-AG899028299309,pdf.exe	29
PID 2608 wrote to memory of 1748	2608	PROFORMA-AG899028299309,pdf.exe	29
PID 2608 wrote to memory of 1748	2608	PROFORMA-AG899028299309,pdf.exe	29
PID 2608 wrote to memory of 1980	2608	PROFORMA-AG899028299309,pdf.exe	31
PID 2608 wrote to memory of 1980	2608	PROFORMA-AG899028299309,pdf.exe	31
PID 2608 wrote to memory of 1980	2608	PROFORMA-AG899028299309,pdf.exe	31
PID 2608 wrote to memory of 1980	2608	PROFORMA-AG899028299309,pdf.exe	31
PID 2608 wrote to memory of 1980	2608	PROFORMA-AG899028299309,pdf.exe	31
PID 2608 wrote to memory of 1980	2608	PROFORMA-AG899028299309,pdf.exe	31
PID 2608 wrote to memory of 1980	2608	PROFORMA-AG899028299309,pdf.exe	31
PID 2608 wrote to memory of 1980	2608	PROFORMA-AG899028299309,pdf.exe	31
PID 2608 wrote to memory of 1980	2608	PROFORMA-AG899028299309,pdf.exe	31
PID 2608 wrote to memory of 1980	2608	PROFORMA-AG899028299309,pdf.exe	31
PID 2608 wrote to memory of 1980	2608	PROFORMA-AG899028299309,pdf.exe	31

C:\Users\Admin\AppData\Local\Temp\PROFORMA-AG899028299309,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PROFORMA-AG899028299309,pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2608
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QsFPBuJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4403.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1748
- C:\Users\Admin\AppData\Local\Temp\PROFORMA-AG899028299309,pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\PROFORMA-AG899028299309,pdf.exe"
  2⤵
  PID:1980

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

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\tmp4403.tmp

Filesize
1KB

MD5
45c9258bf179167a36fae46c7c00815f

SHA1
9322b6d8fb56779c5d5be9ada8460e9111faa063

SHA256
3ebdc4c7e2a9a25c97af66941fd8aee2fd00897d44ec32b4ef48fe8f4e2c8b32

SHA512
a166dff1bfc34aa3fc8a212125e0cf030ab6175b18ceff5d8b9f44e21e88b700de95dd56542eab134823bb3fc232ea754dc4a4defa15e550936b054f8748a331

Download Submit
memory/1980-16-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1980-19-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1980-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1980-22-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1980-23-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1980-33-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1980-31-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1980-30-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1980-17-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1980-27-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1980-29-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1980-14-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2608-7-0x0000000001010000-0x0000000001048000-memory.dmp

Filesize
224KB

Download
memory/2608-4-0x000000007447E000-0x000000007447F000-memory.dmp

Filesize
4KB

Download
memory/2608-0-0x000000007447E000-0x000000007447F000-memory.dmp

Filesize
4KB

Download
memory/2608-5-0x0000000074470000-0x0000000074B5E000-memory.dmp

Filesize
6.9MB

Download
memory/2608-3-0x0000000000A00000-0x0000000000A14000-memory.dmp

Filesize
80KB

Download
memory/2608-1-0x00000000010D0000-0x000000000116C000-memory.dmp

Filesize
624KB

Download
memory/2608-2-0x0000000074470000-0x0000000074B5E000-memory.dmp

Filesize
6.9MB

Download
memory/2608-32-0x0000000074470000-0x0000000074B5E000-memory.dmp

Filesize
6.9MB

Download
memory/2608-6-0x0000000005140000-0x00000000051BC000-memory.dmp

Filesize
496KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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