modiloader | b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7

General

Target

b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe
Size

1.1MB
MD5

111687a32c1b81bc69e1c1f1a8542a73
SHA1

640c5bab4aac4f0f8d8538747af91144696739f2
SHA256

b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7
SHA512

16cdc773fa0a5e2873899a26f7df546de1303abe1f5989acc9c1588fd7cd3d990623512581ee7b7819dd0c7e900f3e1bb28449133dce599c06a7a0c4c7be6f62
SSDEEP

24576:0JIq+wADGZYx4t/yVrQ9JO85sfip46OV/b7Dujv:eNAXCSfs8V/b7yjv

Score

10^/10

modiloader remcos remotehost persistence rat trojan

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

newpage44.mywire.org:5010

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
adode.exe
copy_folder
Skype
delete_file
true
hide_file
true
hide_keylog_file
false
install_flag
true
install_path
%Temp%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-3N0E9G
screenshot_crypt
false
screenshot_flag
true
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

Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 11 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2476-57-0x0000000016090000-0x0000000017090000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2476-59-0x0000000016090000-0x0000000017090000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2476-61-0x0000000016090000-0x0000000017090000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2476-63-0x0000000016090000-0x0000000017090000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2476-64-0x0000000016090000-0x0000000017090000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2476-65-0x0000000016090000-0x0000000017090000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2476-66-0x0000000016090000-0x0000000017090000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2476-74-0x0000000016090000-0x0000000017090000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2476-75-0x0000000016090000-0x0000000017090000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2476-85-0x0000000016090000-0x0000000017090000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2476-86-0x0000000016090000-0x0000000017090000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM

ModiLoader Second Stage 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2456-2-0x0000000003ED0000-0x0000000004ED0000-memory.dmp	modiloader_stage2
behavioral2/memory/2476-53-0x0000000003DD0000-0x0000000004DD0000-memory.dmp	modiloader_stage2

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:

b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe

Deletes itself 1 IoCs

Processes:

adode.exe

pid process

2476 adode.exe
Executes dropped EXE 1 IoCs

Processes:

adode.exe

pid process

2476 adode.exe

pid	process
2476	adode.exe

pid	process
2476	adode.exe

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exeadode.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-3N0E9G = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Skype\\adode.exe\""	b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-3N0E9G = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Skype\\adode.exe\""	b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-3N0E9G = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Skype\\adode.exe\""	adode.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-3N0E9G = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Skype\\adode.exe\""	adode.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Tuscpznj = "C:\\Users\\Public\\Tuscpznj.url"	b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe

Script User-Agent 4 IoCs

Uses user-agent string associated with script host/environment.

Processes:

description	flow	ioc
HTTP User-Agent header	127	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	129	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	35	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	40	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

adode.exe

pid process

2476 adode.exe

pid	process
2476	adode.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe

description	pid	process	target process
PID 2456 wrote to memory of 696	2456	b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe	extrac32.exe
PID 2456 wrote to memory of 696	2456	b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe	extrac32.exe
PID 2456 wrote to memory of 696	2456	b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe	extrac32.exe
PID 2456 wrote to memory of 2476	2456	b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe	adode.exe
PID 2456 wrote to memory of 2476	2456	b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe	adode.exe
PID 2456 wrote to memory of 2476	2456	b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe	adode.exe

C:\Users\Admin\AppData\Local\Temp\b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe
"C:\Users\Admin\AppData\Local\Temp\b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2456

C:\Windows\SysWOW64\extrac32.exe
C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe C:\\Users\\Public\\Libraries\\Tuscpznj.PIF
2⤵
PID:696

C:\Users\Admin\AppData\Local\Temp\Skype\adode.exe
"C:\Users\Admin\AppData\Local\Temp\Skype\adode.exe"
2⤵
- Deletes itself
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
PID:2476

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\ProgramData\remcos\logs.dat
Filesize
144B

MD5
e9ecb355767f4ec2597c4a48862cc2ec

SHA1
cc062aa6380a818da784aeffab64877659345948

SHA256
78b0805c116a000eebb73f5014b899f189f4d70457a0f723fc810d3e8c928a5c

SHA512
5da1282eec09c05cc8e49571bdd02a5310b8e4699a7447074c50935ccd72f8a037746042bdddee5c7a1ea335e55a003cd08cdf335d623c3453e3e916dc998945

Download Submit
C:\Users\Admin\AppData\Local\Temp\Skype\adode.exe
Filesize
1.1MB

MD5
111687a32c1b81bc69e1c1f1a8542a73

SHA1
640c5bab4aac4f0f8d8538747af91144696739f2

SHA256
b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7

SHA512
16cdc773fa0a5e2873899a26f7df546de1303abe1f5989acc9c1588fd7cd3d990623512581ee7b7819dd0c7e900f3e1bb28449133dce599c06a7a0c4c7be6f62

Download Submit
memory/2456-0-0x0000000002400000-0x0000000002401000-memory.dmp

Filesize
4KB

Download
memory/2456-1-0x0000000003ED0000-0x0000000004ED0000-memory.dmp

Filesize
16.0MB

Download
memory/2456-2-0x0000000003ED0000-0x0000000004ED0000-memory.dmp

Filesize
16.0MB

Download
memory/2456-4-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/2456-6-0x0000000002400000-0x0000000002401000-memory.dmp

Filesize
4KB

Download
memory/2476-59-0x0000000016090000-0x0000000017090000-memory.dmp

Filesize
16.0MB

Download
memory/2476-65-0x0000000016090000-0x0000000017090000-memory.dmp

Filesize
16.0MB

Download
memory/2476-57-0x0000000016090000-0x0000000017090000-memory.dmp

Filesize
16.0MB

Download
memory/2476-53-0x0000000003DD0000-0x0000000004DD0000-memory.dmp

Filesize
16.0MB

Download
memory/2476-61-0x0000000016090000-0x0000000017090000-memory.dmp

Filesize
16.0MB

Download
memory/2476-63-0x0000000016090000-0x0000000017090000-memory.dmp

Filesize
16.0MB

Download
memory/2476-64-0x0000000016090000-0x0000000017090000-memory.dmp

Filesize
16.0MB

Download
memory/2476-55-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/2476-66-0x0000000016090000-0x0000000017090000-memory.dmp

Filesize
16.0MB

Download
memory/2476-74-0x0000000016090000-0x0000000017090000-memory.dmp

Filesize
16.0MB

Download
memory/2476-75-0x0000000016090000-0x0000000017090000-memory.dmp

Filesize
16.0MB

Download
memory/2476-51-0x0000000002410000-0x0000000002411000-memory.dmp

Filesize
4KB

Download
memory/2476-85-0x0000000016090000-0x0000000017090000-memory.dmp

Filesize
16.0MB

Download
memory/2476-86-0x0000000016090000-0x0000000017090000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads