remcos | 687fac8ea1cfe53efd98ae25b17da41e88603a8c8a3ada71fad837acd97a6533

General

Target

SPT _ORDER 5676-SEPT1521,pdf,pdf.exe
Size

783KB
MD5

a83ce04c71214b48d3f559a4bc310ed1
SHA1

99738e4db2d511683ab182af71f5f81910c0f300
SHA256

687fac8ea1cfe53efd98ae25b17da41e88603a8c8a3ada71fad837acd97a6533
SHA512

d12e0d5e69a4fe9d635b5a42685f79f3d95bde8af4dbf0fddee8e36f87359a59829e4650d5d905d8f15d5900b8c7b15913e812bfaf65993ebd6acb80df4c27a6

Score

10^/10

remcos ok man persistence rat

Malware Config

Extracted

Family

remcos

Version

3.1.5 Pro

Botnet

OK MAN

C2

zion6.ddns.net:2815

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-MPN2RF
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
notepad;solitaire;

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Blocklisted process makes network request 62 IoCs

Processes:

mshta.exe

flow	pid	process
13	1204	mshta.exe
14	1204	mshta.exe
15	1204	mshta.exe
16	1204	mshta.exe
17	1204	mshta.exe
18	1204	mshta.exe
19	1204	mshta.exe
21	1204	mshta.exe
26	1204	mshta.exe
27	1204	mshta.exe
29	1204	mshta.exe
32	1204	mshta.exe
34	1204	mshta.exe
35	1204	mshta.exe
36	1204	mshta.exe
37	1204	mshta.exe
38	1204	mshta.exe
39	1204	mshta.exe
40	1204	mshta.exe
41	1204	mshta.exe
42	1204	mshta.exe
43	1204	mshta.exe
44	1204	mshta.exe
45	1204	mshta.exe
46	1204	mshta.exe
47	1204	mshta.exe
48	1204	mshta.exe
49	1204	mshta.exe
52	1204	mshta.exe
54	1204	mshta.exe
55	1204	mshta.exe
56	1204	mshta.exe
57	1204	mshta.exe
58	1204	mshta.exe
59	1204	mshta.exe
60	1204	mshta.exe
61	1204	mshta.exe
62	1204	mshta.exe
64	1204	mshta.exe
65	1204	mshta.exe
66	1204	mshta.exe
67	1204	mshta.exe
68	1204	mshta.exe
69	1204	mshta.exe
70	1204	mshta.exe
71	1204	mshta.exe
72	1204	mshta.exe
73	1204	mshta.exe
74	1204	mshta.exe
75	1204	mshta.exe
76	1204	mshta.exe
77	1204	mshta.exe
78	1204	mshta.exe
79	1204	mshta.exe
80	1204	mshta.exe
81	1204	mshta.exe
82	1204	mshta.exe
83	1204	mshta.exe
85	1204	mshta.exe
86	1204	mshta.exe
87	1204	mshta.exe
88	1204	mshta.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

SPT _ORDER 5676-SEPT1521,pdf,pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ksdfhzle = "C:\\Users\\Public\\Libraries\\elzhfdsK.url"	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe

Modifies registry key 1 TTPs 3 IoCs

Modify Registry
T1112

Processes:

reg.exereg.exereg.exe

pid process

2004 reg.exe
2072 reg.exe
2856 reg.exe

pid	process
2004	reg.exe
2072	reg.exe
2856	reg.exe

Suspicious use of WriteProcessMemory 36 IoCs

Processes:

SPT _ORDER 5676-SEPT1521,pdf,pdf.execmd.execmd.execmd.exe

description	pid	process	target process
PID 652 wrote to memory of 1204	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	mshta.exe
PID 652 wrote to memory of 1204	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	mshta.exe
PID 652 wrote to memory of 1204	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	mshta.exe
PID 652 wrote to memory of 1204	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	mshta.exe
PID 652 wrote to memory of 1204	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	mshta.exe
PID 652 wrote to memory of 1204	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	mshta.exe
PID 652 wrote to memory of 1204	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	mshta.exe
PID 652 wrote to memory of 1204	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	mshta.exe
PID 652 wrote to memory of 1204	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	mshta.exe
PID 652 wrote to memory of 1204	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	mshta.exe
PID 652 wrote to memory of 1204	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	mshta.exe
PID 652 wrote to memory of 1204	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	mshta.exe
PID 652 wrote to memory of 1204	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	mshta.exe
PID 652 wrote to memory of 1204	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	mshta.exe
PID 652 wrote to memory of 1204	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	mshta.exe
PID 652 wrote to memory of 1284	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	cmd.exe
PID 652 wrote to memory of 1284	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	cmd.exe
PID 652 wrote to memory of 1284	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	cmd.exe
PID 1284 wrote to memory of 1656	1284	cmd.exe	cmd.exe
PID 1284 wrote to memory of 1656	1284	cmd.exe	cmd.exe
PID 1284 wrote to memory of 1656	1284	cmd.exe	cmd.exe
PID 1656 wrote to memory of 2004	1656	cmd.exe	reg.exe
PID 1656 wrote to memory of 2004	1656	cmd.exe	reg.exe
PID 1656 wrote to memory of 2004	1656	cmd.exe	reg.exe
PID 1656 wrote to memory of 2072	1656	cmd.exe	reg.exe
PID 1656 wrote to memory of 2072	1656	cmd.exe	reg.exe
PID 1656 wrote to memory of 2072	1656	cmd.exe	reg.exe
PID 1656 wrote to memory of 3172	1656	cmd.exe	schtasks.exe
PID 1656 wrote to memory of 3172	1656	cmd.exe	schtasks.exe
PID 1656 wrote to memory of 3172	1656	cmd.exe	schtasks.exe
PID 652 wrote to memory of 2584	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	cmd.exe
PID 652 wrote to memory of 2584	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	cmd.exe
PID 652 wrote to memory of 2584	652	SPT _ORDER 5676-SEPT1521,pdf,pdf.exe	cmd.exe
PID 2584 wrote to memory of 2856	2584	cmd.exe	reg.exe
PID 2584 wrote to memory of 2856	2584	cmd.exe	reg.exe
PID 2584 wrote to memory of 2856	2584	cmd.exe	reg.exe

C:\Users\Admin\AppData\Local\Temp\SPT _ORDER 5676-SEPT1521,pdf,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\SPT _ORDER 5676-SEPT1521,pdf,pdf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:652
- C:\Windows\SysWOW64\mshta.exe
  C:\Windows\System32\mshta.exe
  2⤵
  - Blocklisted process makes network request
  PID:1204
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Trast.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1284
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1656
  - - C:\Windows\SysWOW64\reg.exe
      reg delete hkcu\Environment /v windir /f
      4⤵
      Modifies registry key
      PID:2004
  - - C:\Windows\SysWOW64\reg.exe
      reg add hkcu\Environment /v windir /d "cmd /c start /min C:\Users\Public\KDECO.bat reg delete hkcu\Environment /v windir /f && REM "
      4⤵
      Modifies registry key
      PID:2072
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
      4⤵
      PID:3172
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\nest.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2584
- - C:\Windows\SysWOW64\reg.exe
    reg delete hkcu\Environment /v windir /f
    3⤵
    - Modifies registry key
    PID:2856

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Public\Trast.bat

MD5
4068c9f69fcd8a171c67f81d4a952a54

SHA1
4d2536a8c28cdcc17465e20d6693fb9e8e713b36

SHA256
24222300c78180b50ed1f8361ba63cb27316ec994c1c9079708a51b4a1a9d810

SHA512
a64f9319acc51fffd0491c74dcd9c9084c2783b82f95727e4bfe387a8528c6dcf68f11418e88f1e133d115daf907549c86dd7ad866b2a7938add5225fbb2811d

Download Submit
C:\Users\Public\UKO.bat

MD5
eaf8d967454c3bbddbf2e05a421411f8

SHA1
6170880409b24de75c2dc3d56a506fbff7f6622c

SHA256
f35f2658455a2e40f151549a7d6465a836c33fa9109e67623916f889849eac56

SHA512
fe5be5c673e99f70c93019d01abb0a29dd2ecf25b2d895190ff551f020c28e7d8f99f65007f440f0f76c5bcac343b2a179a94d190c938ea3b9e1197890a412e9

Download Submit
C:\Users\Public\nest.bat

MD5
8ada51400b7915de2124baaf75e3414c

SHA1
1a7b9db12184ab7fd7fce1c383f9670a00adb081

SHA256
45aa3957c29865260a78f03eef18ae9aebdbf7bea751ecc88be4a799f2bb46c7

SHA512
9afc138157a4565294ca49942579cdb6f5d8084e56f9354738de62b585f4c0fa3e7f2cbc9541827f2084e3ff36c46eed29b46f5dd2444062ffcd05c599992e68

Download Submit
memory/652-114-0x00000000004D0000-0x000000000061A000-memory.dmp

Filesize
1.3MB

Download
memory/1204-129-0x0000000010590000-0x000000001060C000-memory.dmp

Filesize
496KB

Download
memory/1204-118-0x0000000000000000-mapping.dmp

Download
memory/1204-130-0x0000000000500000-0x0000000000579000-memory.dmp

Filesize
484KB

Download
memory/1204-128-0x0000000000680000-0x0000000000681000-memory.dmp

Filesize
4KB

Download
memory/1204-127-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/1204-126-0x0000000000630000-0x0000000000631000-memory.dmp

Filesize
4KB

Download
memory/1284-119-0x0000000000000000-mapping.dmp

Download
memory/1656-121-0x0000000000000000-mapping.dmp

Download
memory/2004-123-0x0000000000000000-mapping.dmp

Download
memory/2072-124-0x0000000000000000-mapping.dmp

Download
memory/2584-131-0x0000000000000000-mapping.dmp

Download
memory/2856-133-0x0000000000000000-mapping.dmp

Download
memory/3172-125-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads