modiloader | 4a2c6fb7bb7678610a7d39de3497f9db1476dc5a7d8d1b29fd9f0e881816c366

General

Target

PROFORMA INVOICE.exe
Size

1.6MB
MD5

488f8d9de535475e4a901c033199ea0c
SHA1

3bda45e062fdc55823d9ceb71d0575df1e6ffd9e
SHA256

67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518
SHA512

58c0bb1af9b495f4c20a518d158f35a96d3f51dbb026b7fc40572a212dd7f05221f11efa995ef10199d32f970a308ea25407b77d307eeed06bd91b897ddbc4a4
SSDEEP

49152:ay6imwGhfj4GBT2z95Zw/L+gwnzBnwyuPTh:azimw4f8iSuD+g

Score

10^/10

modiloader remcos remotehost persistence rat trojan

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:47212

officerem.duckdns.org:47212

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-I8N3XG
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

ModiLoader Second Stage 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2108-2-0x00000000028D0000-0x00000000038D0000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

1808195.exe

pid process

552 1808195.exe
Loads dropped DLL 1 IoCs

Processes:

1808195.exe

pid process

552 1808195.exe

pid	process
552	1808195.exe

pid	process
552	1808195.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

PROFORMA INVOICE.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Uajcyryw = "C:\\Users\\Public\\Uajcyryw.url"	PROFORMA INVOICE.exe

Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.

Processes:

description flow ioc

HTTP User-Agent header 18 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

3864 powershell.exe
3864 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 3864 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PROFORMA INVOICE.exe

pid process

2108 PROFORMA INVOICE.exe

description	flow	ioc
HTTP User-Agent header	18	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

pid	process
3864	powershell.exe
3864	powershell.exe

description	pid	process
Token: SeDebugPrivilege	3864	powershell.exe

pid	process
2108	PROFORMA INVOICE.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

PROFORMA INVOICE.execmd.exe1808195.execmd.execmd.exe

description	pid	process	target process
PID 2108 wrote to memory of 1596	2108	PROFORMA INVOICE.exe	cmd.exe
PID 2108 wrote to memory of 1596	2108	PROFORMA INVOICE.exe	cmd.exe
PID 2108 wrote to memory of 1596	2108	PROFORMA INVOICE.exe	cmd.exe
PID 2108 wrote to memory of 3852	2108	PROFORMA INVOICE.exe	cmd.exe
PID 2108 wrote to memory of 3852	2108	PROFORMA INVOICE.exe	cmd.exe
PID 2108 wrote to memory of 3852	2108	PROFORMA INVOICE.exe	cmd.exe
PID 2108 wrote to memory of 2828	2108	PROFORMA INVOICE.exe	cmd.exe
PID 2108 wrote to memory of 2828	2108	PROFORMA INVOICE.exe	cmd.exe
PID 2108 wrote to memory of 2828	2108	PROFORMA INVOICE.exe	cmd.exe
PID 2828 wrote to memory of 552	2828	cmd.exe	1808195.exe
PID 2828 wrote to memory of 552	2828	cmd.exe	1808195.exe
PID 552 wrote to memory of 4328	552	1808195.exe	cmd.exe
PID 552 wrote to memory of 4328	552	1808195.exe	cmd.exe
PID 4328 wrote to memory of 4864	4328	cmd.exe	cmd.exe
PID 4328 wrote to memory of 4864	4328	cmd.exe	cmd.exe
PID 4864 wrote to memory of 3864	4864	cmd.exe	powershell.exe
PID 4864 wrote to memory of 3864	4864	cmd.exe	powershell.exe
PID 2108 wrote to memory of 3400	2108	PROFORMA INVOICE.exe	extrac32.exe
PID 2108 wrote to memory of 3400	2108	PROFORMA INVOICE.exe	extrac32.exe
PID 2108 wrote to memory of 3400	2108	PROFORMA INVOICE.exe	extrac32.exe

C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.exe
"C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2108

C:\Windows\SysWOW64\cmd.exe
cmd /c mkdir "\\?\C:\Windows "
2⤵
PID:1596

C:\Windows\SysWOW64\cmd.exe
cmd /c mkdir "\\?\C:\Windows \System32"
2⤵
PID:3852

C:\Windows\SysWOW64\cmd.exe
cmd /c "C:\Windows \System32\1808195.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2828

C:\Windows \System32\1808195.exe
"C:\Windows \System32\1808195.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:552

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""
4⤵
- Suspicious use of WriteProcessMemory
PID:4328

C:\Windows\system32\cmd.exe
cmd /c powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
5⤵
- Suspicious use of WriteProcessMemory
PID:4864

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
6⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3864

C:\Windows\SysWOW64\extrac32.exe
C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.exe C:\\Users\\Public\\Libraries\\Uajcyryw.PIF
2⤵
PID:3400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
4fc64315f03c6c7e12cf608534459210

SHA1
cd6d6dbc88a69fbc79fc0868eada3095da87d421

SHA256
56a5d5854764f5bce8e1bdf5fce06989a146ce41872a4aeb602baf85a5226029

SHA512
ac7b94b4019f4ab9551f8a159b403dae9ccb5a10cfb4b53aae733c62a21b4e84cd65afee529e8bf43d0c08b8eebb13781510006b064f1b3177b536144b8a5875

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_k51ko2iu.qsl.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows \System32\1808195.exe

Filesize
128KB

MD5
231ce1e1d7d98b44371ffff407d68b59

SHA1
25510d0f6353dbf0c9f72fc880de7585e34b28ff

SHA256
30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96

SHA512
520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612

Download Submit
C:\Windows \System32\netutils.dll

Filesize
112KB

MD5
8541304aadba4ae8620bb2699f6e0437

SHA1
e0b28a6ecd32d3789433217364c1006de9892df8

SHA256
50573c81e5773c13a5411e8446d7fb17956865675782239818f7affd40a2fecb

SHA512
c18b1233c138229705242e1cdc00970e45e414d8da9c643b1196ec9de261ae18076e22bed6fcc48c07d1f0e851469db9147f083f3c3c76a26b75994419392455

Download Submit
C:\windows \system32\KDECO.bat

Filesize
11KB

MD5
c545650595b479c81ad6b9d8882aae39

SHA1
7a98aa2e6eee23b3c1bba876955d525bc618b3f0

SHA256
a3a80983cb33159f0455fa0135789402558baa1460db94d0071318512b8cb5f9

SHA512
85ac596a7da9072a28c4178e4fdedc98f1b49c8e3fe5612cfe464833297b13f65d2dc59b52d7fc9970cff8f98d954111229aec0ed9dded454e03b0cf4ebb6ff3

Download Submit
memory/552-15-0x00000000613C0000-0x00000000613E3000-memory.dmp

Filesize
140KB

Download
memory/2108-39-0x0000000015150000-0x0000000016150000-memory.dmp

Filesize
16.0MB

Download
memory/2108-56-0x0000000015150000-0x0000000016150000-memory.dmp

Filesize
16.0MB

Download
memory/2108-2-0x00000000028D0000-0x00000000038D0000-memory.dmp

Filesize
16.0MB

Download
memory/2108-89-0x0000000015150000-0x0000000016150000-memory.dmp

Filesize
16.0MB

Download
memory/2108-87-0x0000000015150000-0x0000000016150000-memory.dmp

Filesize
16.0MB

Download
memory/2108-78-0x0000000015150000-0x0000000016150000-memory.dmp

Filesize
16.0MB

Download
memory/2108-76-0x0000000015150000-0x0000000016150000-memory.dmp

Filesize
16.0MB

Download
memory/2108-67-0x0000000015150000-0x0000000016150000-memory.dmp

Filesize
16.0MB

Download
memory/2108-36-0x0000000015150000-0x0000000016150000-memory.dmp

Filesize
16.0MB

Download
memory/2108-38-0x0000000015150000-0x0000000016150000-memory.dmp

Filesize
16.0MB

Download
memory/2108-0-0x0000000000A40000-0x0000000000A41000-memory.dmp

Filesize
4KB

Download
memory/2108-40-0x0000000015150000-0x0000000016150000-memory.dmp

Filesize
16.0MB

Download
memory/2108-42-0x0000000015150000-0x0000000016150000-memory.dmp

Filesize
16.0MB

Download
memory/2108-43-0x0000000015150000-0x0000000016150000-memory.dmp

Filesize
16.0MB

Download
memory/2108-44-0x0000000015150000-0x0000000016150000-memory.dmp

Filesize
16.0MB

Download
memory/2108-45-0x0000000015150000-0x0000000016150000-memory.dmp

Filesize
16.0MB

Download
memory/2108-46-0x0000000015150000-0x0000000016150000-memory.dmp

Filesize
16.0MB

Download
memory/2108-1-0x00000000028D0000-0x00000000038D0000-memory.dmp

Filesize
16.0MB

Download
memory/2108-54-0x0000000015150000-0x0000000016150000-memory.dmp

Filesize
16.0MB

Download
memory/2108-4-0x0000000000400000-0x00000000005AF000-memory.dmp

Filesize
1.7MB

Download
memory/2108-65-0x0000000015150000-0x0000000016150000-memory.dmp

Filesize
16.0MB

Download
memory/3864-32-0x00007FFDE4D60000-0x00007FFDE5821000-memory.dmp

Filesize
10.8MB

Download
memory/3864-28-0x000001F963C60000-0x000001F963C70000-memory.dmp

Filesize
64KB

Download
memory/3864-29-0x000001F963C60000-0x000001F963C70000-memory.dmp

Filesize
64KB

Download
memory/3864-27-0x00007FFDE4D60000-0x00007FFDE5821000-memory.dmp

Filesize
10.8MB

Download
memory/3864-26-0x000001F97E4C0000-0x000001F97E4E2000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads