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

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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	PROFORMA-AG899028299309,pdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1532 set thread context of 4212	1532	PROFORMA-AG899028299309,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 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
1564	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1532	PROFORMA-AG899028299309,pdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1532	PROFORMA-AG899028299309,pdf.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1532 wrote to memory of 1564	1532	PROFORMA-AG899028299309,pdf.exe	100
PID 1532 wrote to memory of 1564	1532	PROFORMA-AG899028299309,pdf.exe	100
PID 1532 wrote to memory of 1564	1532	PROFORMA-AG899028299309,pdf.exe	100
PID 1532 wrote to memory of 4212	1532	PROFORMA-AG899028299309,pdf.exe	102
PID 1532 wrote to memory of 4212	1532	PROFORMA-AG899028299309,pdf.exe	102
PID 1532 wrote to memory of 4212	1532	PROFORMA-AG899028299309,pdf.exe	102
PID 1532 wrote to memory of 4212	1532	PROFORMA-AG899028299309,pdf.exe	102
PID 1532 wrote to memory of 4212	1532	PROFORMA-AG899028299309,pdf.exe	102
PID 1532 wrote to memory of 4212	1532	PROFORMA-AG899028299309,pdf.exe	102
PID 1532 wrote to memory of 4212	1532	PROFORMA-AG899028299309,pdf.exe	102
PID 1532 wrote to memory of 4212	1532	PROFORMA-AG899028299309,pdf.exe	102
PID 1532 wrote to memory of 4212	1532	PROFORMA-AG899028299309,pdf.exe	102
PID 1532 wrote to memory of 4212	1532	PROFORMA-AG899028299309,pdf.exe	102

C:\Users\Admin\AppData\Local\Temp\PROFORMA-AG899028299309,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PROFORMA-AG899028299309,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:1532
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QsFPBuJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp30BB.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1564
- C:\Users\Admin\AppData\Local\Temp\PROFORMA-AG899028299309,pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\PROFORMA-AG899028299309,pdf.exe"
  2⤵
  PID:4212

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\tmp30BB.tmp

Filesize
1KB

MD5
e6d86bacf435374e5cd053e8c15efa43

SHA1
7d230cbdf1bd8f2e4b9f33d4970c637411768416

SHA256
5650d053095a21432dfe619df512b5790fd6ff27790e7aed6b8ce9f78e4deb73

SHA512
b5fa8f4b858bcc23595d824536232bcfe6744eb1efb8e25f270c4c6623334f4b841274f663d053679631f6a1419d66808dcee005ea264721888a0f96855439a4

Download Submit
memory/1532-10-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/1532-8-0x0000000006650000-0x0000000006664000-memory.dmp

Filesize
80KB

Download
memory/1532-9-0x0000000074F4E000-0x0000000074F4F000-memory.dmp

Filesize
4KB

Download
memory/1532-4-0x0000000005A20000-0x0000000005AB2000-memory.dmp

Filesize
584KB

Download
memory/1532-5-0x0000000005AC0000-0x0000000005ACA000-memory.dmp

Filesize
40KB

Download
memory/1532-6-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/1532-7-0x0000000005C70000-0x0000000005CC6000-memory.dmp

Filesize
344KB

Download
memory/1532-24-0x0000000074F40000-0x00000000756F0000-memory.dmp

Filesize
7.7MB

Download
memory/1532-3-0x0000000005FD0000-0x0000000006574000-memory.dmp

Filesize
5.6MB

Download
memory/1532-2-0x0000000005980000-0x0000000005A1C000-memory.dmp

Filesize
624KB

Download
memory/1532-12-0x00000000017B0000-0x00000000017E8000-memory.dmp

Filesize
224KB

Download
memory/1532-11-0x0000000001730000-0x00000000017AC000-memory.dmp

Filesize
496KB

Download
memory/1532-1-0x0000000000EE0000-0x0000000000F7C000-memory.dmp

Filesize
624KB

Download
memory/1532-0-0x0000000074F4E000-0x0000000074F4F000-memory.dmp

Filesize
4KB

Download
memory/4212-25-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4212-22-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4212-23-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4212-21-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4212-18-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads