remcos | a1c3e17317a6578fee600bc9bbc3a7fe621d65839b8ca372989483734aeed3b6

General

Target

Iwfifvwzd4.exe
Size

395KB
MD5

c942e578f5449ab92e720f47f2cbbb8f
SHA1

460cdca7556f9ee5dc5492096b21c997a3d1a819
SHA256

84f6968bec673a61d9408dd7a9dc1bf38be61c947078887d27d09210792f5eee
SHA512

262f5cd85d2e1ed6266937e9fd64207f3266a6dc05c75599cc19f845fed7aa56e5314204955649dea0798b49571093394d296eca5bfe002cdd2451e8213d6991
SSDEEP

6144:h4MUo9SMQq3NB3cgT0YAOjVmiV13wYi/4TG:nS+3b4EmiTjigT

Score

10^/10

remcos lime discovery rat

Malware Config

Extracted

Family

remcos

Version

2.7.2 Pro

Botnet

Lime

C2

latua.nsupdate.info:7722

fanta.nsupdate.info:7722

coke.nsupdate.info:7722

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
renovatedds-E7QW6H
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 2104 set thread context of 2340	2104	Iwfifvwzd4.exe	32

System Location Discovery: System Language Discovery 1 TTPs 1 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	Iwfifvwzd4.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2104	Iwfifvwzd4.exe
2104	Iwfifvwzd4.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2104	Iwfifvwzd4.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2340	Iwfifvwzd4.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 3044	2104	Iwfifvwzd4.exe	31
PID 2104 wrote to memory of 3044	2104	Iwfifvwzd4.exe	31
PID 2104 wrote to memory of 3044	2104	Iwfifvwzd4.exe	31
PID 2104 wrote to memory of 3044	2104	Iwfifvwzd4.exe	31
PID 2104 wrote to memory of 3044	2104	Iwfifvwzd4.exe	31
PID 2104 wrote to memory of 3044	2104	Iwfifvwzd4.exe	31
PID 2104 wrote to memory of 3044	2104	Iwfifvwzd4.exe	31
PID 2104 wrote to memory of 2340	2104	Iwfifvwzd4.exe	32
PID 2104 wrote to memory of 2340	2104	Iwfifvwzd4.exe	32
PID 2104 wrote to memory of 2340	2104	Iwfifvwzd4.exe	32
PID 2104 wrote to memory of 2340	2104	Iwfifvwzd4.exe	32
PID 2104 wrote to memory of 2340	2104	Iwfifvwzd4.exe	32
PID 2104 wrote to memory of 2340	2104	Iwfifvwzd4.exe	32
PID 2104 wrote to memory of 2340	2104	Iwfifvwzd4.exe	32
PID 2104 wrote to memory of 2340	2104	Iwfifvwzd4.exe	32
PID 2104 wrote to memory of 2340	2104	Iwfifvwzd4.exe	32
PID 2104 wrote to memory of 2340	2104	Iwfifvwzd4.exe	32
PID 2104 wrote to memory of 2340	2104	Iwfifvwzd4.exe	32
PID 2104 wrote to memory of 2340	2104	Iwfifvwzd4.exe	32
PID 2104 wrote to memory of 2340	2104	Iwfifvwzd4.exe	32
PID 2104 wrote to memory of 2340	2104	Iwfifvwzd4.exe	32

C:\Users\Admin\AppData\Local\Temp\Iwfifvwzd4.exe
"C:\Users\Admin\AppData\Local\Temp\Iwfifvwzd4.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Users\Admin\AppData\Local\Temp\Iwfifvwzd4.exe
  "C:\Users\Admin\AppData\Local\Temp\Iwfifvwzd4.exe"
  2⤵
  PID:3044
- C:\Users\Admin\AppData\Local\Temp\Iwfifvwzd4.exe
  "C:\Users\Admin\AppData\Local\Temp\Iwfifvwzd4.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:2340

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:\Users\Admin\AppData\Roaming\remcos\logs.dat

Filesize
74B

MD5
dd5efee9faad7b45d5999309b87f1e30

SHA1
e9b8bf4d8cea78fec9146784714ed902a27f024b

SHA256
3f37593779496c2347235a6d6aeab5a85bebcce7e52add64ef11148b2176b4d3

SHA512
501327f6b1cd552d45f32060d040f2ded5b8ea0ed7fe237c412877641311cbb0afc07e56fa43c0e963db0d5f9e2713fca3ff59f221a12e5c01b07df5988ac2b9

Download Submit
memory/2104-0-0x000000007440E000-0x000000007440F000-memory.dmp

Filesize
4KB

Download
memory/2104-1-0x00000000001A0000-0x0000000000208000-memory.dmp

Filesize
416KB

Download
memory/2104-2-0x0000000074400000-0x0000000074AEE000-memory.dmp

Filesize
6.9MB

Download
memory/2104-3-0x0000000000520000-0x0000000000552000-memory.dmp

Filesize
200KB

Download
memory/2104-4-0x0000000000560000-0x00000000005B4000-memory.dmp

Filesize
336KB

Download
memory/2104-6-0x0000000000740000-0x000000000075C000-memory.dmp

Filesize
112KB

Download
memory/2104-23-0x0000000074400000-0x0000000074AEE000-memory.dmp

Filesize
6.9MB

Download
memory/2340-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2340-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2340-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2340-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2340-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2340-15-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2340-18-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2340-21-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2340-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2340-22-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2340-17-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2340-25-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2340-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

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