remcos | 98a65c076242646146b594d6e00fa18b4819b85847768f410e093c0c07ff0bb8

Analysis

max time kernel
151s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19/12/2022, 09:57

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General

Target
Bank Details_pdf and IBAN.exe
Size 300.0MB
Sample221219-ly58eahg8w
SHA256 98a65c076242646146b594d6e00fa18b4819b85847768f410e093c0c07ff0bb8
MD5 0626c95fb457bb2b21a60d0b21f7de08
SHA1 6a73ed84d9573f0b45e9a7bcb555a04bf2fde4d4
SHA512 0cdacd4409de12602d2554183c4b8669c530eb1367b24e6e9b75864919e30a78f87c2acccf6c70b11c8f1b4e25ce669b3dc8d9fbe6dd2ffde72d6e108ae2f890
SSDEEP 12288:WT8EArj+gCVHJUZWLlSj8NG72iy829JpTj7SbgA8aC:EysVJUbjqiy84qsA8h
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos worldclass rat

Malware Config

Extracted

Family

remcos

Botnet

worldclass

91.193.75.188:60004

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
worldclass.exe
copy_folder
worldclass
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-59BKS1
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
worldclass
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5016 set thread context of 1228	5016	Bank Details_pdf and IBAN.exe	82

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2032	1228	WerFault.exe	82

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 5016 wrote to memory of 1228	5016	Bank Details_pdf and IBAN.exe	82
PID 5016 wrote to memory of 1228	5016	Bank Details_pdf and IBAN.exe	82
PID 5016 wrote to memory of 1228	5016	Bank Details_pdf and IBAN.exe	82
PID 5016 wrote to memory of 1228	5016	Bank Details_pdf and IBAN.exe	82
PID 5016 wrote to memory of 1228	5016	Bank Details_pdf and IBAN.exe	82
PID 5016 wrote to memory of 1228	5016	Bank Details_pdf and IBAN.exe	82
PID 5016 wrote to memory of 1228	5016	Bank Details_pdf and IBAN.exe	82
PID 5016 wrote to memory of 1228	5016	Bank Details_pdf and IBAN.exe	82
PID 5016 wrote to memory of 1228	5016	Bank Details_pdf and IBAN.exe	82
PID 5016 wrote to memory of 1228	5016	Bank Details_pdf and IBAN.exe	82
PID 5016 wrote to memory of 1228	5016	Bank Details_pdf and IBAN.exe	82
PID 5016 wrote to memory of 1228	5016	Bank Details_pdf and IBAN.exe	82

C:\Users\Admin\AppData\Local\Temp\Bank Details_pdf and IBAN.exe
"C:\Users\Admin\AppData\Local\Temp\Bank Details_pdf and IBAN.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5016
- C:\Users\Admin\AppData\Local\Temp\Bank Details_pdf and IBAN.exe
  "C:\Users\Admin\AppData\Local\Temp\Bank Details_pdf and IBAN.exe"
  2⤵
  PID:1228
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1228 -s 496
    3⤵
    - Program crash
    PID:2032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1228 -ip 1228
1⤵
PID:1508

Network

MITRE ATT&CK Matrix

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Downloads

memory/1228-138-0x0000000000540000-0x00000000005BF000-memory.dmp

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memory/1228-143-0x0000000000540000-0x00000000005BF000-memory.dmp

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memory/1228-148-0x0000000000540000-0x00000000005BF000-memory.dmp

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memory/5016-132-0x00000000003B0000-0x00000000004EA000-memory.dmp

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memory/5016-133-0x0000000005340000-0x00000000058E4000-memory.dmp

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memory/5016-134-0x0000000004F30000-0x0000000004FC2000-memory.dmp

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memory/5016-135-0x0000000004E90000-0x0000000004EF6000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads