remcos | fed5572012a12bdafafc4d00c615f7e23935b59e9388792ef98d37b6f8b5fc70

General

Target

FedEX Receipt_AWB# 779187550472.exe
Size

915KB
MD5

67280e0aa391e0583402048f03ce0343
SHA1

f68a9378e8d8f0c5ba10fc63fb51c6f14baaefac
SHA256

d8029b14e5fa065e09f0dee40b19978cb59633d86c708974b97aabf15a569b38
SHA512

467955349f07a1c02251fc1418c9a1a622cf6405264efa99454f02641b5b36b79802016c1bbdad6ff70a59400be68345da470033716558fbd1a71299aaad25cc
SSDEEP

24576:h3akAx8VHZGbfkYQYT0GZ23/PR+0cb+x1j:pakAx8VHZaNZyo0cb+x1

Score

10^/10

remcos ood discovery rat

Malware Config

Extracted

Family

remcos

Botnet

ood

C2

goody.work.gd:4173

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
vlc
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
ios
mouse_option
false
mutex
gig-R8G1B2
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
sos
take_screenshot_option
false
take_screenshot_time
5

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 4440 set thread context of 2272	4440	FedEX Receipt_AWB# 779187550472.exe	85

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	FedEX Receipt_AWB# 779187550472.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FedEX Receipt_AWB# 779187550472.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4440	FedEX Receipt_AWB# 779187550472.exe
4440	FedEX Receipt_AWB# 779187550472.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4440	FedEX Receipt_AWB# 779187550472.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2272	FedEX Receipt_AWB# 779187550472.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4440 wrote to memory of 3408	4440	FedEX Receipt_AWB# 779187550472.exe	84
PID 4440 wrote to memory of 3408	4440	FedEX Receipt_AWB# 779187550472.exe	84
PID 4440 wrote to memory of 3408	4440	FedEX Receipt_AWB# 779187550472.exe	84
PID 4440 wrote to memory of 2272	4440	FedEX Receipt_AWB# 779187550472.exe	85
PID 4440 wrote to memory of 2272	4440	FedEX Receipt_AWB# 779187550472.exe	85
PID 4440 wrote to memory of 2272	4440	FedEX Receipt_AWB# 779187550472.exe	85
PID 4440 wrote to memory of 2272	4440	FedEX Receipt_AWB# 779187550472.exe	85
PID 4440 wrote to memory of 2272	4440	FedEX Receipt_AWB# 779187550472.exe	85
PID 4440 wrote to memory of 2272	4440	FedEX Receipt_AWB# 779187550472.exe	85
PID 4440 wrote to memory of 2272	4440	FedEX Receipt_AWB# 779187550472.exe	85
PID 4440 wrote to memory of 2272	4440	FedEX Receipt_AWB# 779187550472.exe	85
PID 4440 wrote to memory of 2272	4440	FedEX Receipt_AWB# 779187550472.exe	85
PID 4440 wrote to memory of 2272	4440	FedEX Receipt_AWB# 779187550472.exe	85
PID 4440 wrote to memory of 2272	4440	FedEX Receipt_AWB# 779187550472.exe	85
PID 4440 wrote to memory of 2272	4440	FedEX Receipt_AWB# 779187550472.exe	85

C:\Users\Admin\AppData\Local\Temp\FedEX Receipt_AWB# 779187550472.exe
"C:\Users\Admin\AppData\Local\Temp\FedEX Receipt_AWB# 779187550472.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4440
- C:\Users\Admin\AppData\Local\Temp\FedEX Receipt_AWB# 779187550472.exe
  "C:\Users\Admin\AppData\Local\Temp\FedEX Receipt_AWB# 779187550472.exe"
  2⤵
  PID:3408
- C:\Users\Admin\AppData\Local\Temp\FedEX Receipt_AWB# 779187550472.exe
  "C:\Users\Admin\AppData\Local\Temp\FedEX Receipt_AWB# 779187550472.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2272

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\ios\logs.dat

Filesize
144B

MD5
b06be047360b6f50273850e2d0f9043a

SHA1
4cc054fc3368c1dc24e10b0a647330ba90425683

SHA256
0ce233820c8f6b9676945e5264d3ab4fe4f3eac9971450e26f258e54ba8fe38e

SHA512
5fa62477c7290227afb0f4b3bf3e1bef8ab8e2604614db4544c0658383ecb62be24aeda6414f9fd77c7ca6c38ef2ad7f69a4b4dfb423719154a4991386082915

Download Submit
memory/2272-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2272-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2272-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2272-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2272-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2272-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2272-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2272-17-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2272-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2272-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2272-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2272-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2272-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2272-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2272-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2272-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4440-7-0x00000000057E0000-0x00000000057F8000-memory.dmp

Filesize
96KB

Download
memory/4440-15-0x0000000075310000-0x0000000075AC0000-memory.dmp

Filesize
7.7MB

Download
memory/4440-10-0x0000000006D30000-0x0000000006DF0000-memory.dmp

Filesize
768KB

Download
memory/4440-9-0x0000000075310000-0x0000000075AC0000-memory.dmp

Filesize
7.7MB

Download
memory/4440-8-0x000000007531E000-0x000000007531F000-memory.dmp

Filesize
4KB

Download
memory/4440-0-0x000000007531E000-0x000000007531F000-memory.dmp

Filesize
4KB

Download
memory/4440-6-0x00000000056E0000-0x000000000577C000-memory.dmp

Filesize
624KB

Download
memory/4440-5-0x0000000005440000-0x000000000544A000-memory.dmp

Filesize
40KB

Download
memory/4440-4-0x0000000075310000-0x0000000075AC0000-memory.dmp

Filesize
7.7MB

Download
memory/4440-3-0x0000000005450000-0x00000000054E2000-memory.dmp

Filesize
584KB

Download
memory/4440-2-0x0000000005960000-0x0000000005F04000-memory.dmp

Filesize
5.6MB

Download
memory/4440-1-0x0000000000950000-0x0000000000A3A000-memory.dmp

Filesize
936KB

Download

Analysis

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