remcos | 11fa1333306fce3fa0d07f67f7889a07c9ff46c2bea22d5fe6ccfb1a1e09fad7

General

Target

f93cf765afdc83db66c7fa6e65a4c635_JaffaCakes118.exe
Size

1.4MB
MD5

f93cf765afdc83db66c7fa6e65a4c635
SHA1

5d30c58a230681dee3951db123d153002e8465dc
SHA256

11fa1333306fce3fa0d07f67f7889a07c9ff46c2bea22d5fe6ccfb1a1e09fad7
SHA512

4950c42ec633d042e7af0fd1f918743eb80d35cc2832d7e098ad6606dfc951267880a484e5edfa75e59f7c8a4115e5b034c9fbac4fc1675ce82df500f7bc22a7
SSDEEP

24576:z6yJMY9UFoRDhkeYM1jJR97zUbia9JVe0hs5WfBiERJchVML1bT6Ep:+Y9UORVOM1jJHzaiape0hsABFRJch6Ld

Score

10^/10

remcos graced rat rezer0 upx

Malware Config

Extracted

Family

remcos

Version

2.5.0 Pro

Botnet

GRACED

C2

thankyoulord.ddns.net:5050

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-0S5XD9
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
wikipedia;solitaire;

Signatures

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

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1304-9-0x0000000000B50000-0x0000000000B7C000-memory.dmp	rezer0

Executes dropped EXE 1 IoCs

Processes:

test.exe

pid process

1304 test.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

2592 cmd.exe

pid	process
1304	test.exe

pid	process
2592	cmd.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/624-0-0x0000000000400000-0x00000000006F1000-memory.dmp	upx
behavioral1/memory/624-10-0x0000000000400000-0x00000000006F1000-memory.dmp	upx
behavioral1/memory/624-31-0x0000000000400000-0x00000000006F1000-memory.dmp	upx

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Suspicious use of SetThreadContext 1 IoCs

Processes:

test.exe

description pid process target process

PID 1304 set thread context of 2796 1304 test.exe vbc.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

2988 schtasks.exe

description	pid	process	target process
PID 1304 set thread context of 2796	1304	test.exe	vbc.exe

pid	process
2988	schtasks.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

f93cf765afdc83db66c7fa6e65a4c635_JaffaCakes118.execmd.exetest.exe

description	pid	process	target process
PID 624 wrote to memory of 2592	624	f93cf765afdc83db66c7fa6e65a4c635_JaffaCakes118.exe	cmd.exe
PID 624 wrote to memory of 2592	624	f93cf765afdc83db66c7fa6e65a4c635_JaffaCakes118.exe	cmd.exe
PID 624 wrote to memory of 2592	624	f93cf765afdc83db66c7fa6e65a4c635_JaffaCakes118.exe	cmd.exe
PID 624 wrote to memory of 2592	624	f93cf765afdc83db66c7fa6e65a4c635_JaffaCakes118.exe	cmd.exe
PID 2592 wrote to memory of 1304	2592	cmd.exe	test.exe
PID 2592 wrote to memory of 1304	2592	cmd.exe	test.exe
PID 2592 wrote to memory of 1304	2592	cmd.exe	test.exe
PID 2592 wrote to memory of 1304	2592	cmd.exe	test.exe
PID 1304 wrote to memory of 2988	1304	test.exe	schtasks.exe
PID 1304 wrote to memory of 2988	1304	test.exe	schtasks.exe
PID 1304 wrote to memory of 2988	1304	test.exe	schtasks.exe
PID 1304 wrote to memory of 2988	1304	test.exe	schtasks.exe
PID 1304 wrote to memory of 2796	1304	test.exe	vbc.exe
PID 1304 wrote to memory of 2796	1304	test.exe	vbc.exe
PID 1304 wrote to memory of 2796	1304	test.exe	vbc.exe
PID 1304 wrote to memory of 2796	1304	test.exe	vbc.exe
PID 1304 wrote to memory of 2796	1304	test.exe	vbc.exe
PID 1304 wrote to memory of 2796	1304	test.exe	vbc.exe
PID 1304 wrote to memory of 2796	1304	test.exe	vbc.exe
PID 1304 wrote to memory of 2796	1304	test.exe	vbc.exe
PID 1304 wrote to memory of 2796	1304	test.exe	vbc.exe
PID 1304 wrote to memory of 2796	1304	test.exe	vbc.exe
PID 1304 wrote to memory of 2796	1304	test.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\f93cf765afdc83db66c7fa6e65a4c635_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f93cf765afdc83db66c7fa6e65a4c635_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:624

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c test.exe
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2592

C:\Users\Admin\AppData\Local\Temp\test.exe
test.exe
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1304

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vXAlJeWc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB4AF.tmp"
4⤵
- Creates scheduled task(s)
PID:2988

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"{path}"
4⤵
PID:2796

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scripting

1

T1064

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Scripting

1

T1064

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB4AF.tmp
Filesize
1KB

MD5
883ab936ffa81df7c257076db374fe6c

SHA1
0d3afed7e4051adf0629d923beb6e359a7f6a958

SHA256
237db64743324f57343218a69aadd14e9c3259c0330f70819c3721b3798190fd

SHA512
471dc7cf09a0615b78e0ac3385f9c6c9d0ed62080d28ec1ec429ea9b2156931489e8763af698917c43e02fbb6fc6f08d1f68ae3565be12606311c1ea6fa5d3b0

Download Submit
\Users\Admin\AppData\Local\Temp\test.exe
Filesize
330KB

MD5
261aa73f93c90dcec0c36a51cb9b5dee

SHA1
b0c41e06cd2ded81706820423db40bf8fea2c957

SHA256
ae160b749914bd56aecbcf43d56a59bde2069a145682b2911fe50c6adabe1b54

SHA512
7b90335b4a7db7b5056f6d60db642754038dc544bd2c1f82e68b1f8e339bf70227f0c08d157b4ca1004448fab7d109f0239196f242d0edeab978de9025a3c0ed

Download Submit
memory/624-0-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download
memory/624-10-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download
memory/624-31-0x0000000000400000-0x00000000006F1000-memory.dmp

Filesize
2.9MB

Download
memory/1304-5-0x0000000000F90000-0x0000000000FE8000-memory.dmp

Filesize
352KB

Download
memory/1304-6-0x0000000074670000-0x0000000074D5E000-memory.dmp

Filesize
6.9MB

Download
memory/1304-7-0x0000000004C80000-0x0000000004CC0000-memory.dmp

Filesize
256KB

Download
memory/1304-8-0x0000000000570000-0x0000000000578000-memory.dmp

Filesize
32KB

Download
memory/1304-9-0x0000000000B50000-0x0000000000B7C000-memory.dmp

Filesize
176KB

Download
memory/1304-28-0x0000000074670000-0x0000000074D5E000-memory.dmp

Filesize
6.9MB

Download
memory/2796-25-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-33-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-21-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-20-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-24-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2796-22-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-16-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-27-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-30-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-18-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-32-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-23-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-34-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-36-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-37-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-39-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-41-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-43-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-45-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-47-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-49-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-51-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-53-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2796-55-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads