remcos | b27ccf7bb556e1f332c8feb3a12f6f3c4b0ba949c059cdc3a1bdd416fb87921e

Analysis

max time kernel
148s
max time network
138s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
22/05/2024, 02:16

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General

Target

524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe
Size

1.3MB
MD5

60561cff1dee1f6bab79d28ab8a84dc3
SHA1

abd6f2841675755c088b4d70dee090225caa73db
SHA256

b27ccf7bb556e1f332c8feb3a12f6f3c4b0ba949c059cdc3a1bdd416fb87921e
SHA512

ab073292660e415fbc8181fe7fefb83c3cdb92531fd4812742f7143dc31a75f1ab8b0e72279d02ffef137956502aa5c13a8e78ed1894ffd648de74b11c946fff
SSDEEP

24576:4Mbni723L73/gXFxoYXpmTvCkV0uf5ZmH1OvAwP0Cwbn:43a3L73ou7vCkCua1RwML

Score

10^/10

remcos remotehost collection rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

104.250.180.178:7902

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
Microsoft .exe
copy_folder
Microsoft
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
Microsoft -QUCX7D
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 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/2836-49-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/2836-47-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/2836-65-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/2368-46-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2368-48-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2368-58-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 7 IoCs

resource	yara_rule
behavioral1/memory/2368-46-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/840-53-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2836-49-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2368-48-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2836-47-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2368-58-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2836-65-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	AddInProcess32.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2256 set thread context of 2492	2256	524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe	28
PID 2492 set thread context of 2368	2492	AddInProcess32.exe	33
PID 2492 set thread context of 2836	2492	AddInProcess32.exe	34
PID 2492 set thread context of 840	2492	AddInProcess32.exe	35

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2256	524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe
2256	524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe
2368	AddInProcess32.exe
2368	AddInProcess32.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2492	AddInProcess32.exe
2492	AddInProcess32.exe
2492	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2256	524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe
Token: SeDebugPrivilege	840	AddInProcess32.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 2492	2256	524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe	28
PID 2256 wrote to memory of 2492	2256	524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe	28
PID 2256 wrote to memory of 2492	2256	524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe	28
PID 2256 wrote to memory of 2492	2256	524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe	28
PID 2256 wrote to memory of 2492	2256	524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe	28
PID 2256 wrote to memory of 2492	2256	524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe	28
PID 2256 wrote to memory of 2492	2256	524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe	28
PID 2256 wrote to memory of 2492	2256	524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe	28
PID 2256 wrote to memory of 2492	2256	524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe	28
PID 2256 wrote to memory of 2492	2256	524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe	28
PID 2256 wrote to memory of 2492	2256	524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe	28
PID 2256 wrote to memory of 2492	2256	524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe	28
PID 2256 wrote to memory of 2492	2256	524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe	28
PID 2492 wrote to memory of 2368	2492	AddInProcess32.exe	33
PID 2492 wrote to memory of 2368	2492	AddInProcess32.exe	33
PID 2492 wrote to memory of 2368	2492	AddInProcess32.exe	33
PID 2492 wrote to memory of 2368	2492	AddInProcess32.exe	33
PID 2492 wrote to memory of 2368	2492	AddInProcess32.exe	33
PID 2492 wrote to memory of 2836	2492	AddInProcess32.exe	34
PID 2492 wrote to memory of 2836	2492	AddInProcess32.exe	34
PID 2492 wrote to memory of 2836	2492	AddInProcess32.exe	34
PID 2492 wrote to memory of 2836	2492	AddInProcess32.exe	34
PID 2492 wrote to memory of 2836	2492	AddInProcess32.exe	34
PID 2492 wrote to memory of 840	2492	AddInProcess32.exe	35
PID 2492 wrote to memory of 840	2492	AddInProcess32.exe	35
PID 2492 wrote to memory of 840	2492	AddInProcess32.exe	35
PID 2492 wrote to memory of 840	2492	AddInProcess32.exe	35
PID 2492 wrote to memory of 840	2492	AddInProcess32.exe	35

C:\Users\Admin\AppData\Local\Temp\524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe
"C:\Users\Admin\AppData\Local\Temp\524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2492
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\oszlcqgcovrabtnftdoywxbp"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:2368
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\qvneciqecdjfdzbrdobszjvyffod"
    3⤵
    - Accesses Microsoft Outlook accounts
    PID:2836
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\bpswdbbxqlbkonxvuzntkoipolgmvht"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\oszlcqgcovrabtnftdoywxbp

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/840-51-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/840-53-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/840-52-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2256-5-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download
memory/2256-3-0x0000000004A70000-0x0000000004AB4000-memory.dmp

Filesize
272KB

Download
memory/2256-6-0x0000000000420000-0x000000000043A000-memory.dmp

Filesize
104KB

Download
memory/2256-7-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2256-8-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download
memory/2256-4-0x000000007414E000-0x000000007414F000-memory.dmp

Filesize
4KB

Download
memory/2256-0-0x000000007414E000-0x000000007414F000-memory.dmp

Filesize
4KB

Download
memory/2256-20-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download
memory/2256-1-0x0000000000230000-0x000000000038C000-memory.dmp

Filesize
1.4MB

Download
memory/2256-27-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download
memory/2256-2-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download
memory/2368-48-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2368-46-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2368-38-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2368-43-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2368-36-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2368-58-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2492-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2492-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-9-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-60-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2492-64-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2492-63-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2492-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2492-66-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2836-65-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2836-45-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2836-47-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2836-49-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2836-42-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download