remcos | 629dd4f1db7eec3c7a084575676b48ac035fcc0a3ae9df3a55fc890c43fcf5d5

General

Target

Urgent RFQ_AP65425652_032421,pdf.exe
Size

743KB
MD5

e0a8f2f5a09a63b2b5f9411028c86d4c
SHA1

326d6ffa21b340ee5dd54f11baa4c1fe24c1e6d7
SHA256

629dd4f1db7eec3c7a084575676b48ac035fcc0a3ae9df3a55fc890c43fcf5d5
SHA512

f00cdd72463ca8795277a095e61533b1036154bc45eacf4f852d08ef138a185924353cd88294b3d9e560256f43118261989ebbef9b3da10508de6880a669e122

Score

10^/10

remcos hulk rat

Malware Config

Extracted

Family

remcos

Version

2.7.1 Pro

Botnet

hulk

C2

lionsguard.ddns.net:5074

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-OLXHVH
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
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Suspicious use of SetThreadContext 1 IoCs

Processes:

Urgent RFQ_AP65425652_032421,pdf.exe

description pid process target process

PID 1560 set thread context of 1708 1560 Urgent RFQ_AP65425652_032421,pdf.exe vbc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1976 schtasks.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Urgent RFQ_AP65425652_032421,pdf.exe

description pid process

Token: SeDebugPrivilege 1560 Urgent RFQ_AP65425652_032421,pdf.exe

description	pid	process	target process
PID 1560 set thread context of 1708	1560	Urgent RFQ_AP65425652_032421,pdf.exe	vbc.exe

pid	process
1976	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	1560	Urgent RFQ_AP65425652_032421,pdf.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Urgent RFQ_AP65425652_032421,pdf.exe

description	pid	process	target process
PID 1560 wrote to memory of 1976	1560	Urgent RFQ_AP65425652_032421,pdf.exe	schtasks.exe
PID 1560 wrote to memory of 1976	1560	Urgent RFQ_AP65425652_032421,pdf.exe	schtasks.exe
PID 1560 wrote to memory of 1976	1560	Urgent RFQ_AP65425652_032421,pdf.exe	schtasks.exe
PID 1560 wrote to memory of 1976	1560	Urgent RFQ_AP65425652_032421,pdf.exe	schtasks.exe
PID 1560 wrote to memory of 1708	1560	Urgent RFQ_AP65425652_032421,pdf.exe	vbc.exe
PID 1560 wrote to memory of 1708	1560	Urgent RFQ_AP65425652_032421,pdf.exe	vbc.exe
PID 1560 wrote to memory of 1708	1560	Urgent RFQ_AP65425652_032421,pdf.exe	vbc.exe
PID 1560 wrote to memory of 1708	1560	Urgent RFQ_AP65425652_032421,pdf.exe	vbc.exe
PID 1560 wrote to memory of 1708	1560	Urgent RFQ_AP65425652_032421,pdf.exe	vbc.exe
PID 1560 wrote to memory of 1708	1560	Urgent RFQ_AP65425652_032421,pdf.exe	vbc.exe
PID 1560 wrote to memory of 1708	1560	Urgent RFQ_AP65425652_032421,pdf.exe	vbc.exe
PID 1560 wrote to memory of 1708	1560	Urgent RFQ_AP65425652_032421,pdf.exe	vbc.exe
PID 1560 wrote to memory of 1708	1560	Urgent RFQ_AP65425652_032421,pdf.exe	vbc.exe
PID 1560 wrote to memory of 1708	1560	Urgent RFQ_AP65425652_032421,pdf.exe	vbc.exe
PID 1560 wrote to memory of 1708	1560	Urgent RFQ_AP65425652_032421,pdf.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\Urgent RFQ_AP65425652_032421,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Urgent RFQ_AP65425652_032421,pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1560

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pOIheT" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB913.tmp"
2⤵
- Creates scheduled task(s)
PID:1976

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"{path}"
2⤵
PID:1708

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Scripting

1

T1064

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB913.tmp
Filesize
1KB

MD5
8b7a6ba0912f145222a6acd5a8b7a4c2

SHA1
7bbc218a60d89cfd2684ea28861fc599ed9a54c0

SHA256
9ea0150b18e040b67d13714eaf35fd5746f7a4245a195b6f23a67a8f9990fa5c

SHA512
c1d4666e734f0011c213f6f548c2c0284cf7ab7ade50dd317770762fb4cc647e0aa1d180eb3b74eb8ce5efdb69e7734bbebfa906093a13dbc2eadb36c1883495

Download Submit
memory/1560-55-0x00000000760E1000-0x00000000760E3000-memory.dmp

Filesize
8KB

Download
memory/1560-56-0x0000000000360000-0x000000000036A000-memory.dmp

Filesize
40KB

Download
memory/1560-57-0x0000000005970000-0x0000000005A14000-memory.dmp

Filesize
656KB

Download
memory/1560-58-0x0000000002090000-0x00000000020E8000-memory.dmp

Filesize
352KB

Download
memory/1560-54-0x0000000000970000-0x0000000000A30000-memory.dmp

Filesize
768KB

Download
memory/1708-62-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1708-61-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1708-64-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1708-66-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1708-67-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1708-68-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1708-70-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1708-71-0x0000000000413FA4-mapping.dmp

Download
memory/1708-74-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1708-75-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1708-76-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1976-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads