remcos | 8957582ccd1876780ff5a43336984ee23ff03be1c8184a6ff9797828f52536e1

Analysis

max time kernel
147s
max time network
141s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/01/2024, 07:44

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General

Target
Item_list0025.exe
Size 862KB
Sample240125-jktaksbdc8
SHA256 8957582ccd1876780ff5a43336984ee23ff03be1c8184a6ff9797828f52536e1
MD5 8c0808705c8abff0a07a6ca91c6df24e
SHA1 28aaae99c9b7290252d7f4bb8fd7e50e9942345c
SHA512 1ff6598349a3d82f7160dcf3dc7189a85872ce5b47ac8bacd74bbfc166668573b2b923fabf07059dbc0bc8b5cf956993355219bcae26169440c5c8283217deac
SSDEEP 24576:mJci+WaRI9bCsla3fAqdfXu5IIhxiwe7:KmI9afu+Iff
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos dk collection rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

64.188.20.186:5050

Attributes

audio_folder
MicRecords
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
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-TPXVZV
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/2000-59-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView
behavioral1/memory/2000-70-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/2596-50-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2596-52-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2596-68-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 7 IoCs

resource	yara_rule
behavioral1/memory/2596-50-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2596-52-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1528-62-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/1528-63-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2000-59-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral1/memory/2596-68-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2000-70-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	Item_list0025.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1812 set thread context of 2728	1812	Item_list0025.exe	32
PID 2728 set thread context of 2596	2728	Item_list0025.exe	36
PID 2728 set thread context of 2000	2728	Item_list0025.exe	37
PID 2728 set thread context of 1528	2728	Item_list0025.exe	39

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

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/Job

T1053

pid	Process
2888	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2768	powershell.exe
2596	Item_list0025.exe
2596	Item_list0025.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
2728	Item_list0025.exe
2728	Item_list0025.exe
2728	Item_list0025.exe
2728	Item_list0025.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2768	powershell.exe
Token: SeDebugPrivilege	1528	Item_list0025.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 1812 wrote to memory of 2768	1812	Item_list0025.exe	28
PID 1812 wrote to memory of 2768	1812	Item_list0025.exe	28
PID 1812 wrote to memory of 2768	1812	Item_list0025.exe	28
PID 1812 wrote to memory of 2768	1812	Item_list0025.exe	28
PID 1812 wrote to memory of 2888	1812	Item_list0025.exe	30
PID 1812 wrote to memory of 2888	1812	Item_list0025.exe	30
PID 1812 wrote to memory of 2888	1812	Item_list0025.exe	30
PID 1812 wrote to memory of 2888	1812	Item_list0025.exe	30
PID 1812 wrote to memory of 2728	1812	Item_list0025.exe	32
PID 1812 wrote to memory of 2728	1812	Item_list0025.exe	32
PID 1812 wrote to memory of 2728	1812	Item_list0025.exe	32
PID 1812 wrote to memory of 2728	1812	Item_list0025.exe	32
PID 1812 wrote to memory of 2728	1812	Item_list0025.exe	32
PID 1812 wrote to memory of 2728	1812	Item_list0025.exe	32
PID 1812 wrote to memory of 2728	1812	Item_list0025.exe	32
PID 1812 wrote to memory of 2728	1812	Item_list0025.exe	32
PID 1812 wrote to memory of 2728	1812	Item_list0025.exe	32
PID 1812 wrote to memory of 2728	1812	Item_list0025.exe	32
PID 1812 wrote to memory of 2728	1812	Item_list0025.exe	32
PID 1812 wrote to memory of 2728	1812	Item_list0025.exe	32
PID 1812 wrote to memory of 2728	1812	Item_list0025.exe	32
PID 2728 wrote to memory of 2596	2728	Item_list0025.exe	36
PID 2728 wrote to memory of 2596	2728	Item_list0025.exe	36
PID 2728 wrote to memory of 2596	2728	Item_list0025.exe	36
PID 2728 wrote to memory of 2596	2728	Item_list0025.exe	36
PID 2728 wrote to memory of 2596	2728	Item_list0025.exe	36
PID 2728 wrote to memory of 2000	2728	Item_list0025.exe	37
PID 2728 wrote to memory of 2000	2728	Item_list0025.exe	37
PID 2728 wrote to memory of 2000	2728	Item_list0025.exe	37
PID 2728 wrote to memory of 2000	2728	Item_list0025.exe	37
PID 2728 wrote to memory of 2000	2728	Item_list0025.exe	37
PID 2728 wrote to memory of 2256	2728	Item_list0025.exe	38
PID 2728 wrote to memory of 2256	2728	Item_list0025.exe	38
PID 2728 wrote to memory of 2256	2728	Item_list0025.exe	38
PID 2728 wrote to memory of 2256	2728	Item_list0025.exe	38
PID 2728 wrote to memory of 1528	2728	Item_list0025.exe	39
PID 2728 wrote to memory of 1528	2728	Item_list0025.exe	39
PID 2728 wrote to memory of 1528	2728	Item_list0025.exe	39
PID 2728 wrote to memory of 1528	2728	Item_list0025.exe	39
PID 2728 wrote to memory of 1528	2728	Item_list0025.exe	39

C:\Users\Admin\AppData\Local\Temp\Item_list0025.exe
"C:\Users\Admin\AppData\Local\Temp\Item_list0025.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1812
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hFjPDstJByxXbg.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2768
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hFjPDstJByxXbg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp49BD.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2888
- C:\Users\Admin\AppData\Local\Temp\Item_list0025.exe
  "C:\Users\Admin\AppData\Local\Temp\Item_list0025.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2728
- - C:\Users\Admin\AppData\Local\Temp\Item_list0025.exe
    C:\Users\Admin\AppData\Local\Temp\Item_list0025.exe /stext "C:\Users\Admin\AppData\Local\Temp\kaahyf"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:2596
- - C:\Users\Admin\AppData\Local\Temp\Item_list0025.exe
    C:\Users\Admin\AppData\Local\Temp\Item_list0025.exe /stext "C:\Users\Admin\AppData\Local\Temp\uunrzyvbk"
    3⤵
    - Accesses Microsoft Outlook accounts
    PID:2000
- - C:\Users\Admin\AppData\Local\Temp\Item_list0025.exe
    C:\Users\Admin\AppData\Local\Temp\Item_list0025.exe /stext "C:\Users\Admin\AppData\Local\Temp\extkzqfdfqnnh"
    3⤵
    PID:2256
- - C:\Users\Admin\AppData\Local\Temp\Item_list0025.exe
    C:\Users\Admin\AppData\Local\Temp\Item_list0025.exe /stext "C:\Users\Admin\AppData\Local\Temp\extkzqfdfqnnh"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

kaahyf

Path C:\Users\Admin\AppData\Local\Temp\kaahyf
Size 2B
SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
MD5 f3b25701fe362ec84616a93a45ce9998
SHA1 d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA512 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
MD5 SHA1 SHA512

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tmp49BD.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp49BD.tmp
Size 1KB
SHA256 d8c7c146c9504b6b0f3e87aa03f1d4acda873bfd42c1b66224e808c00ba7322c
MD5 82c540e43c313e8a047a1260fe174bed
SHA1 52fea19d6dd507481a9caea76fc1a0beb899f5e0
SHA512 32ceb4084306f3ead416b25221a3d0bcccc115eda2ada0198701cfcc58ef981d4bc63b12d9ebb6e9cf57a37c594dc77be254be99d292c244eeafec3c538bf9ce
MD5 SHA1 SHA512

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memory/1528-61-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/1528-62-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/1528-63-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/1528-57-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/1528-79-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/1812-3-0x0000000000A10000-0x0000000000A28000-memory.dmp

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memory/1812-6-0x0000000005410000-0x00000000054C8000-memory.dmp

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memory/1812-5-0x0000000000A40000-0x0000000000A4C000-memory.dmp

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memory/1812-4-0x0000000000A30000-0x0000000000A38000-memory.dmp

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memory/1812-2-0x0000000000980000-0x00000000009C0000-memory.dmp

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memory/1812-26-0x0000000074BF0000-0x00000000752DE000-memory.dmp

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memory/1812-1-0x0000000074BF0000-0x00000000752DE000-memory.dmp

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memory/1812-0-0x00000000012B0000-0x000000000138E000-memory.dmp

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memory/2000-59-0x0000000000400000-0x0000000000457000-memory.dmp

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memory/2000-70-0x0000000000400000-0x0000000000457000-memory.dmp

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memory/2000-55-0x0000000000400000-0x0000000000457000-memory.dmp

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memory/2000-51-0x0000000000400000-0x0000000000457000-memory.dmp

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memory/2596-45-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/2596-68-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/2596-52-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/2596-50-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/2596-48-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/2728-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

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memory/2728-77-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-34-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-35-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-36-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-37-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-38-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-39-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-40-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-42-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-86-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-85-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-84-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-83-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-82-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/2728-19-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-20-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-81-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-21-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-24-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-18-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-17-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-16-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-15-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-71-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/2728-74-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/2728-75-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/2728-76-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/2728-33-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-78-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-14-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2728-80-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2768-27-0x0000000002B40000-0x0000000002B80000-memory.dmp

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memory/2768-28-0x000000006F020000-0x000000006F5CB000-memory.dmp

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memory/2768-29-0x000000006F020000-0x000000006F5CB000-memory.dmp

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memory/2768-30-0x0000000002B40000-0x0000000002B80000-memory.dmp

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memory/2768-31-0x0000000002B40000-0x0000000002B80000-memory.dmp

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memory/2768-32-0x000000006F020000-0x000000006F5CB000-memory.dmp

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