remcos | 2161a41e36c0bb939dc0203f9e1ada84addcef0e2f31905fad860e16c7603c88

General

Target

CITAPDFRES743960001 CITAPDFRES743960007.exe
Size

589KB
MD5

80d706aa41da2983dc3b80782e22dfaa
SHA1

0e6f43dbceae22222d09f5d7848aa4f24ee42c44
SHA256

2161a41e36c0bb939dc0203f9e1ada84addcef0e2f31905fad860e16c7603c88
SHA512

a8ece67856b180449d16ce98d7c627a1f02a854b6fff2bd03aa72e0119d1d64f3f68f0d4bcd345ff1248c534c9478cce808046230312d30fea09aa3897d80c04

Score

10^/10

remcos 9 rat

Malware Config

Extracted

Family

remcos

Version

2.7.0 Pro

Botnet

9

C2

pruebanue97382.duckdns.org:1718

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-B5WISH
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
Suspicious use of SetThreadContext 1 IoCs

Processes:

CITAPDFRES743960001 CITAPDFRES743960007.exe

description pid process target process

PID 3792 set thread context of 412 3792 CITAPDFRES743960001 CITAPDFRES743960007.exe RegSvcs.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

3744 schtasks.exe

description	pid	process	target process
PID 3792 set thread context of 412	3792	CITAPDFRES743960001 CITAPDFRES743960007.exe	RegSvcs.exe

pid	process
3744	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

CITAPDFRES743960001 CITAPDFRES743960007.exe

pid	process
3792	CITAPDFRES743960001 CITAPDFRES743960007.exe
3792	CITAPDFRES743960001 CITAPDFRES743960007.exe
3792	CITAPDFRES743960001 CITAPDFRES743960007.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

CITAPDFRES743960001 CITAPDFRES743960007.exe

description pid process

Token: SeDebugPrivilege 3792 CITAPDFRES743960001 CITAPDFRES743960007.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid process

412 RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	3792	CITAPDFRES743960001 CITAPDFRES743960007.exe

pid	process
412	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

CITAPDFRES743960001 CITAPDFRES743960007.exe

description	pid	process	target process
PID 3792 wrote to memory of 3744	3792	CITAPDFRES743960001 CITAPDFRES743960007.exe	schtasks.exe
PID 3792 wrote to memory of 3744	3792	CITAPDFRES743960001 CITAPDFRES743960007.exe	schtasks.exe
PID 3792 wrote to memory of 3744	3792	CITAPDFRES743960001 CITAPDFRES743960007.exe	schtasks.exe
PID 3792 wrote to memory of 1940	3792	CITAPDFRES743960001 CITAPDFRES743960007.exe	RegSvcs.exe
PID 3792 wrote to memory of 1940	3792	CITAPDFRES743960001 CITAPDFRES743960007.exe	RegSvcs.exe
PID 3792 wrote to memory of 1940	3792	CITAPDFRES743960001 CITAPDFRES743960007.exe	RegSvcs.exe
PID 3792 wrote to memory of 412	3792	CITAPDFRES743960001 CITAPDFRES743960007.exe	RegSvcs.exe
PID 3792 wrote to memory of 412	3792	CITAPDFRES743960001 CITAPDFRES743960007.exe	RegSvcs.exe
PID 3792 wrote to memory of 412	3792	CITAPDFRES743960001 CITAPDFRES743960007.exe	RegSvcs.exe
PID 3792 wrote to memory of 412	3792	CITAPDFRES743960001 CITAPDFRES743960007.exe	RegSvcs.exe
PID 3792 wrote to memory of 412	3792	CITAPDFRES743960001 CITAPDFRES743960007.exe	RegSvcs.exe
PID 3792 wrote to memory of 412	3792	CITAPDFRES743960001 CITAPDFRES743960007.exe	RegSvcs.exe
PID 3792 wrote to memory of 412	3792	CITAPDFRES743960001 CITAPDFRES743960007.exe	RegSvcs.exe
PID 3792 wrote to memory of 412	3792	CITAPDFRES743960001 CITAPDFRES743960007.exe	RegSvcs.exe
PID 3792 wrote to memory of 412	3792	CITAPDFRES743960001 CITAPDFRES743960007.exe	RegSvcs.exe
PID 3792 wrote to memory of 412	3792	CITAPDFRES743960001 CITAPDFRES743960007.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\CITAPDFRES743960001 CITAPDFRES743960007.exe
"C:\Users\Admin\AppData\Local\Temp\CITAPDFRES743960001 CITAPDFRES743960007.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3792

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dmRXApqOj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC83E.tmp"
2⤵
- Creates scheduled task(s)
PID:3744

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:1940

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Suspicious use of SetWindowsHookEx
PID:412

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

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\tmpC83E.tmp
MD5
70f26d13b1357fcddcfabc185a3dce19

SHA1
415ce2024cf234064b100f6717391da0e974e78c

SHA256
714a4f69bfd845bc559c6293b89f36e103d213f1764efc783880ca6bfd442837

SHA512
35995b6894226ef096c11546ff62661d0bdf40c3b7f8b978d99c5ac3071c8237265502e5d952f4c61d5d97a3e868e4b5efc4f2a4f2c040cd454f8b7b1b61313f

Download Submit
memory/412-127-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/412-126-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3792-121-0x0000000004F60000-0x0000000004FB6000-memory.dmp

Filesize
344KB

Download
memory/3792-119-0x0000000004E50000-0x000000000534E000-memory.dmp

Filesize
5.0MB

Download
memory/3792-120-0x0000000004D70000-0x0000000004D7A000-memory.dmp

Filesize
40KB

Download
memory/3792-115-0x0000000000410000-0x00000000004AA000-memory.dmp

Filesize
616KB

Download
memory/3792-122-0x00000000052D0000-0x00000000052DA000-memory.dmp

Filesize
40KB

Download
memory/3792-123-0x00000000088B0000-0x0000000008924000-memory.dmp

Filesize
464KB

Download
memory/3792-124-0x000000000B090000-0x000000000B0B6000-memory.dmp

Filesize
152KB

Download
memory/3792-118-0x0000000004E50000-0x0000000004EE2000-memory.dmp

Filesize
584KB

Download
memory/3792-117-0x0000000005350000-0x000000000584E000-memory.dmp

Filesize
5.0MB

Download
memory/3792-116-0x0000000004DB0000-0x0000000004E4C000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads