remcos | a7654b625ae3d62d56a2a9fe2e3317c8970cdc7ffc5862fbb557da03ac2a8fb1

General

Target

368c6a0cf3419a57c54f3c36a0411ae4.exe
Size

1.4MB
MD5

368c6a0cf3419a57c54f3c36a0411ae4
SHA1

94e5428209d02605de40464f5eebec2f5f8f9e51
SHA256

a7654b625ae3d62d56a2a9fe2e3317c8970cdc7ffc5862fbb557da03ac2a8fb1
SHA512

ccace697e4e265871658f552b3ece1fe75ab1c0f089d8f32681f2dbf44a33e78b021241fd428d213b9a19abec62c5401d32b08f22fbdccb543a1112af31c4e8d
SSDEEP

24576:d6yJMY9UFoRDhkeYM1jJR97zUbia9JVe0hs5WfBiERJchVML1bT6El:MY9UORVOM1jJHzaiape0hsABFRJch6Lh

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/2448-9-0x0000000002030000-0x000000000205C000-memory.dmp	rezer0

Executes dropped EXE 1 IoCs

Processes:

test.exe

pid process

2448 test.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

2768 cmd.exe

pid	process
2448	test.exe

pid	process
2768	cmd.exe

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2008-0-0x0000000000400000-0x00000000006F2000-memory.dmp	upx
behavioral1/memory/2008-15-0x0000000000400000-0x00000000006F2000-memory.dmp	upx
behavioral1/memory/2008-42-0x0000000000400000-0x00000000006F2000-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 2448 set thread context of 2884 2448 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

2596 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

test.exe

pid process

2448 test.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

test.exe

description pid process

Token: SeDebugPrivilege 2448 test.exe

description	pid	process	target process
PID 2448 set thread context of 2884	2448	test.exe	vbc.exe

pid	process
2596	schtasks.exe

pid	process
2448	test.exe

description	pid	process
Token: SeDebugPrivilege	2448	test.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

368c6a0cf3419a57c54f3c36a0411ae4.execmd.exetest.exe

description	pid	process	target process
PID 2008 wrote to memory of 2768	2008	368c6a0cf3419a57c54f3c36a0411ae4.exe	cmd.exe
PID 2008 wrote to memory of 2768	2008	368c6a0cf3419a57c54f3c36a0411ae4.exe	cmd.exe
PID 2008 wrote to memory of 2768	2008	368c6a0cf3419a57c54f3c36a0411ae4.exe	cmd.exe
PID 2008 wrote to memory of 2768	2008	368c6a0cf3419a57c54f3c36a0411ae4.exe	cmd.exe
PID 2768 wrote to memory of 2448	2768	cmd.exe	test.exe
PID 2768 wrote to memory of 2448	2768	cmd.exe	test.exe
PID 2768 wrote to memory of 2448	2768	cmd.exe	test.exe
PID 2768 wrote to memory of 2448	2768	cmd.exe	test.exe
PID 2448 wrote to memory of 2596	2448	test.exe	schtasks.exe
PID 2448 wrote to memory of 2596	2448	test.exe	schtasks.exe
PID 2448 wrote to memory of 2596	2448	test.exe	schtasks.exe
PID 2448 wrote to memory of 2596	2448	test.exe	schtasks.exe
PID 2448 wrote to memory of 2884	2448	test.exe	vbc.exe
PID 2448 wrote to memory of 2884	2448	test.exe	vbc.exe
PID 2448 wrote to memory of 2884	2448	test.exe	vbc.exe
PID 2448 wrote to memory of 2884	2448	test.exe	vbc.exe
PID 2448 wrote to memory of 2884	2448	test.exe	vbc.exe
PID 2448 wrote to memory of 2884	2448	test.exe	vbc.exe
PID 2448 wrote to memory of 2884	2448	test.exe	vbc.exe
PID 2448 wrote to memory of 2884	2448	test.exe	vbc.exe
PID 2448 wrote to memory of 2884	2448	test.exe	vbc.exe
PID 2448 wrote to memory of 2884	2448	test.exe	vbc.exe
PID 2448 wrote to memory of 2884	2448	test.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\368c6a0cf3419a57c54f3c36a0411ae4.exe
"C:\Users\Admin\AppData\Local\Temp\368c6a0cf3419a57c54f3c36a0411ae4.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2008

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c test.exe
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2768

C:\Users\Admin\AppData\Local\Temp\test.exe
test.exe
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2448

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vXAlJeWc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8F35.tmp"
4⤵
- Creates scheduled task(s)
PID:2596

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"{path}"
4⤵
PID:2884

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\test.exe
Filesize
305KB

MD5
93c57d3a5f6f0a085f503ee3056a6e12

SHA1
0767ba0ff3201e299b5a477d9f2d98789317e72b

SHA256
368dbe6cb6055fe68b9bc733d1ba7c77e49bf559e8615c1a1d8fc6a87a587c4d

SHA512
a990b81e22aedfe7786fa9f5333c86433f5a8b5f5ebfec902a65209d56b53a428e8bbb0b147b01f58d00cb1adeffe5ca3c4252188e4a7d02e262a0621007991b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8F35.tmp
Filesize
1KB

MD5
81bd8ab36b5bada1a66e1d6aec930c19

SHA1
4d6a9e17edacbd058dc7780f6e90476baec51485

SHA256
eebf931af3ee5475b0f680fa30650fdc7be47647e9dca05371de7cc0d142d153

SHA512
ba308dc09c4ab636c7f6ff004ba18d0f448064c8220a3a8d2d595c9d893bb9f865525ae7f4b31978b699c3edbfce9439b6adfffb9a76f6f9a1279ac1e4301041

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

MD5
261aa73f93c90dcec0c36a51cb9b5dee

SHA1
b0c41e06cd2ded81706820423db40bf8fea2c957

SHA256
ae160b749914bd56aecbcf43d56a59bde2069a145682b2911fe50c6adabe1b54

SHA512
7b90335b4a7db7b5056f6d60db642754038dc544bd2c1f82e68b1f8e339bf70227f0c08d157b4ca1004448fab7d109f0239196f242d0edeab978de9025a3c0ed

Download Submit
memory/2008-42-0x0000000000400000-0x00000000006F2000-memory.dmp

Filesize
2.9MB

Download
memory/2008-0-0x0000000000400000-0x00000000006F2000-memory.dmp

Filesize
2.9MB

Download
memory/2008-15-0x0000000000400000-0x00000000006F2000-memory.dmp

Filesize
2.9MB

Download
memory/2448-8-0x0000000000580000-0x0000000000588000-memory.dmp

Filesize
32KB

Download
memory/2448-9-0x0000000002030000-0x000000000205C000-memory.dmp

Filesize
176KB

Download
memory/2448-7-0x0000000004CE0000-0x0000000004D20000-memory.dmp

Filesize
256KB

Download
memory/2448-16-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/2448-18-0x0000000004CE0000-0x0000000004D20000-memory.dmp

Filesize
256KB

Download
memory/2448-6-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/2448-5-0x0000000000870000-0x00000000008C8000-memory.dmp

Filesize
352KB

Download
memory/2448-38-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/2884-34-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2884-43-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-28-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-32-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-26-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-35-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-24-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-37-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-40-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-39-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-22-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-30-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-44-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-45-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-47-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-48-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-50-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-52-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-54-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-56-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-58-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2884-60-0x0000000000400000-0x0000000000420000-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