remcos | f3d9b0d3e9ea4aa5b425bae232c8dfe72c6e3d044a5336fa361e625d3aab80a3

General

Target

COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe
Size

1023.9MB
MD5

db6a8aedc759fcb43e03e59b582a7d5f
SHA1

e688809e434fb9b9f314bec1f16f642142e58cd1
SHA256

0e57fce2eeefb7c24ef7b905d0084da103f2313eba38421c46f644c06e4ef707
SHA512

7e23420555f57954657a1ef453743df69b1c8aedd619570363b9f18b10fee92f098da4bf64305329f801ec50e7461b6bdeb3381ac0d66fc5c12ef01589fee120
SSDEEP

12288:yvTIkDmLM5rf8tACMTY+dSHjk7QAtH3xKkNx0LCjbmPJYWr:g8kDmKf8tA/9SjKHhKkrwCmPJJr

Score

10^/10

remcos bbbbb rat

Malware Config

Extracted

Family

remcos

Botnet

BBBBB

C2

ferfnekfkjerfjre.con-ip.com:1995

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-B468MF
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1364 set thread context of 1480	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	105

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2880	1480	WerFault.exe	105

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
3396	schtasks.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1364 wrote to memory of 1480	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	105
PID 1364 wrote to memory of 1480	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	105
PID 1364 wrote to memory of 1480	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	105
PID 1364 wrote to memory of 1480	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	105
PID 1364 wrote to memory of 1480	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	105
PID 1364 wrote to memory of 1480	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	105
PID 1364 wrote to memory of 1480	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	105
PID 1364 wrote to memory of 1480	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	105
PID 1364 wrote to memory of 1480	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	105
PID 1364 wrote to memory of 1480	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	105
PID 1364 wrote to memory of 1480	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	105
PID 1364 wrote to memory of 1480	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	105
PID 1364 wrote to memory of 1924	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	106
PID 1364 wrote to memory of 1924	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	106
PID 1364 wrote to memory of 1924	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	106
PID 1364 wrote to memory of 2464	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	108
PID 1364 wrote to memory of 2464	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	108
PID 1364 wrote to memory of 2464	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	108
PID 2464 wrote to memory of 3396	2464	cmd.exe	111
PID 2464 wrote to memory of 3396	2464	cmd.exe	111
PID 2464 wrote to memory of 3396	2464	cmd.exe	111
PID 1364 wrote to memory of 3044	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	112
PID 1364 wrote to memory of 3044	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	112
PID 1364 wrote to memory of 3044	1364	COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe	112

C:\Users\Admin\AppData\Local\Temp\COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe
"C:\Users\Admin\AppData\Local\Temp\COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1364
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
  2⤵
  PID:1480
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1480 -s 512
    3⤵
    - Program crash
    PID:2880
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\AppData"
  2⤵
  PID:1924
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C schtasks /create /sc minute /mo 10 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\AppData\AppData.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2464
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 10 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\AppData\AppData.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:3396
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C copy "C:\Users\Admin\AppData\Local\Temp\COMUNICADO URGENTE TUTELA FISCAL VIGENTE 22 DE FEBRERO.exe" "C:\Users\Admin\AppData\Roaming\AppData\AppData.exe"
  2⤵
  PID:3044

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1400 --field-trial-handle=2432,i,12161922670941700748,3348345705955601576,262144 --variations-seed-version /prefetch:8
1⤵
PID:1688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1480 -ip 1480
1⤵
PID:3284

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1364-1-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/1364-0-0x0000000000390000-0x000000000041A000-memory.dmp

Filesize
552KB

Download
memory/1364-2-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

Filesize
64KB

Download
memory/1364-3-0x0000000005380000-0x0000000005924000-memory.dmp

Filesize
5.6MB

Download
memory/1364-16-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/1364-17-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

Filesize
64KB

Download
memory/1364-21-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/1480-5-0x0000000000900000-0x0000000000982000-memory.dmp

Filesize
520KB

Download
memory/1480-10-0x0000000000900000-0x0000000000982000-memory.dmp

Filesize
520KB

Download
memory/1480-15-0x0000000000900000-0x0000000000982000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads