remcos | 41ed87725575a97d3f1a04554cb78dd3fb973e209950d2f7c54168626ce57ef4

General

Target

f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe
Size

850KB
MD5

f1484465f0d58e374932d04f7855ecf4
SHA1

9761138927c2146fc13f1f7412c38a08713eed15
SHA256

41ed87725575a97d3f1a04554cb78dd3fb973e209950d2f7c54168626ce57ef4
SHA512

b09f2e7d63e9290ef0f6a65d5ef307e1fdc74fe0fe2ab95374af6d6fe8054c19d488b85492c379487c39c9d3af85907c8a5ae2dafeb33c0d9238ec701eb9e9c8
SSDEEP

12288:2kLHuNG6NUzpL/tIYXJ21WtG1HI8mhgDPzfM7OPcO3cOm4fHhd8lgkds73K:1LHutNipZIXv1/cOPzZPcOPm4pd8lJ

Score

10^/10

remcos remotehost rat

Malware Config

Extracted

Family

remcos

Version

3.1.5 Pro

Botnet

RemoteHost

C2

45.137.22.101:5888

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-DO13UE
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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe

description pid process target process

PID 748 set thread context of 1956 748 f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe RegSvcs.exe
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

Processes:

schtasks.exe

pid process

3112 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe

pid process

748 f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe

description pid process

Token: SeDebugPrivilege 748 f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe

description	pid	process	target process
PID 748 set thread context of 1956	748	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe	RegSvcs.exe

pid	process
3112	schtasks.exe

pid	process
748	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe

description	pid	process
Token: SeDebugPrivilege	748	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe

description	pid	process	target process
PID 748 wrote to memory of 3112	748	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe	schtasks.exe
PID 748 wrote to memory of 3112	748	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe	schtasks.exe
PID 748 wrote to memory of 3112	748	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe	schtasks.exe
PID 748 wrote to memory of 1956	748	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe	RegSvcs.exe
PID 748 wrote to memory of 1956	748	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe	RegSvcs.exe
PID 748 wrote to memory of 1956	748	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe	RegSvcs.exe
PID 748 wrote to memory of 1956	748	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe	RegSvcs.exe
PID 748 wrote to memory of 1956	748	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe	RegSvcs.exe
PID 748 wrote to memory of 1956	748	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe	RegSvcs.exe
PID 748 wrote to memory of 1956	748	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe	RegSvcs.exe
PID 748 wrote to memory of 1956	748	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe	RegSvcs.exe
PID 748 wrote to memory of 1956	748	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe	RegSvcs.exe
PID 748 wrote to memory of 1956	748	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe	RegSvcs.exe
PID 748 wrote to memory of 1956	748	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe	RegSvcs.exe
PID 748 wrote to memory of 1956	748	f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f1484465f0d58e374932d04f7855ecf4_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:748

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cfGWuVQfXhTnwl" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB0E1.tmp"
2⤵
- Creates scheduled task(s)
PID:3112

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:1956

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB0E1.tmp

Filesize
1KB

MD5
1d8416c5c7e5d4d6e53bdacf851abaeb

SHA1
2593dd6c79d9d86c0fa828175a3153ea723dd538

SHA256
c8b6c6a48d27bb49b47d85e6debef3cd73615c42baff4ca9ce066e5f47db1af5

SHA512
55912512e2e75fd077407c913cee73590ebe79bbb2e69320e23feba1272a2696f9979692496b63bad22ec1e6188c0f038eae335190b5b43adc38f75c5d2b75cc

Download Submit
memory/748-8-0x0000000005190000-0x00000000051A0000-memory.dmp

Filesize
64KB

Download
memory/748-5-0x0000000005690000-0x000000000572C000-memory.dmp

Filesize
624KB

Download
memory/748-9-0x0000000005F80000-0x0000000006060000-memory.dmp

Filesize
896KB

Download
memory/748-4-0x0000000005110000-0x0000000005118000-memory.dmp

Filesize
32KB

Download
memory/748-10-0x0000000008520000-0x00000000085CA000-memory.dmp

Filesize
680KB

Download
memory/748-6-0x0000000005730000-0x00000000057C2000-memory.dmp

Filesize
584KB

Download
memory/748-7-0x0000000074910000-0x00000000750C0000-memory.dmp

Filesize
7.7MB

Download
memory/748-1-0x0000000074910000-0x00000000750C0000-memory.dmp

Filesize
7.7MB

Download
memory/748-3-0x0000000005290000-0x00000000055E4000-memory.dmp

Filesize
3.3MB

Download
memory/748-2-0x0000000005190000-0x00000000051A0000-memory.dmp

Filesize
64KB

Download
memory/748-0-0x0000000000670000-0x000000000074A000-memory.dmp

Filesize
872KB

Download
memory/748-18-0x0000000074910000-0x00000000750C0000-memory.dmp

Filesize
7.7MB

Download
memory/1956-15-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1956-17-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1956-14-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1956-20-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1956-21-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads