modiloader | 9aaa4c1154d5017d1292ad167a09e9796a61c00b2601bd1cb8ab6edc235c0eaa

General

Target

9aaa4c1154d5017d1292ad167a09e9796a61c00b2601bd1cb8ab6edc235c0eaaN.exe
Size

270KB
MD5

7a515838637bf9d9c93fe72b276c5fd0
SHA1

3d8804863c3d60d88b0ca1440f527be183a144f9
SHA256

9aaa4c1154d5017d1292ad167a09e9796a61c00b2601bd1cb8ab6edc235c0eaa
SHA512

fb2238a8ed9c9a45ddb753c3b7195f670008aac6864de73688c56d5b84d426740e16b38a17af843325884ca0fbcaee0b5608891c336fcfd6dfe83a939e8e223b
SSDEEP

6144:KG377xS2Vp2CeiorXhwTBOz53ipcCJJvH:Zr7xS2Vp6FwTZbJJvH

Score

10^/10

modiloader discovery evasion persistence trojan

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Modiloader family
modiloader

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

ModiLoader Second Stage 13 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012102-4.dat	modiloader_stage2
behavioral1/memory/2764-7-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/2908-17-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/2908-20-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/2908-23-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/2908-26-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/2908-29-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/2908-32-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/2908-35-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/2908-38-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/2908-41-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/2908-44-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/2908-47-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

pid	Process
2908	mstwain32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe"	mstwain32.exe

Checks whether UAC is enabled 1 TTPs 3 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	9aaa4c1154d5017d1292ad167a09e9796a61c00b2601bd1cb8ab6edc235c0eaaN.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	mstwain32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\cmsetac.dll	mstwain32.exe
File created	C:\Windows\mstwain32.exe	9aaa4c1154d5017d1292ad167a09e9796a61c00b2601bd1cb8ab6edc235c0eaaN.exe
File opened for modification	C:\Windows\mstwain32.exe	9aaa4c1154d5017d1292ad167a09e9796a61c00b2601bd1cb8ab6edc235c0eaaN.exe
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9aaa4c1154d5017d1292ad167a09e9796a61c00b2601bd1cb8ab6edc235c0eaaN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2764	9aaa4c1154d5017d1292ad167a09e9796a61c00b2601bd1cb8ab6edc235c0eaaN.exe
Token: SeDebugPrivilege	2908	mstwain32.exe
Token: SeDebugPrivilege	2908	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2908	mstwain32.exe
2908	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 2908	2764	9aaa4c1154d5017d1292ad167a09e9796a61c00b2601bd1cb8ab6edc235c0eaaN.exe	30
PID 2764 wrote to memory of 2908	2764	9aaa4c1154d5017d1292ad167a09e9796a61c00b2601bd1cb8ab6edc235c0eaaN.exe	30
PID 2764 wrote to memory of 2908	2764	9aaa4c1154d5017d1292ad167a09e9796a61c00b2601bd1cb8ab6edc235c0eaaN.exe	30
PID 2764 wrote to memory of 2908	2764	9aaa4c1154d5017d1292ad167a09e9796a61c00b2601bd1cb8ab6edc235c0eaaN.exe	30

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

C:\Users\Admin\AppData\Local\Temp\9aaa4c1154d5017d1292ad167a09e9796a61c00b2601bd1cb8ab6edc235c0eaaN.exe
"C:\Users\Admin\AppData\Local\Temp\9aaa4c1154d5017d1292ad167a09e9796a61c00b2601bd1cb8ab6edc235c0eaaN.exe"
1⤵
- Checks whether UAC is enabled
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Windows\mstwain32.exe
  "C:\Windows\mstwain32.exe"
  2⤵
  - UAC bypass
  - Executes dropped EXE
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - System policy modification
  PID:2908

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

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\mstwain32.exe

Filesize
270KB

MD5
7a515838637bf9d9c93fe72b276c5fd0

SHA1
3d8804863c3d60d88b0ca1440f527be183a144f9

SHA256
9aaa4c1154d5017d1292ad167a09e9796a61c00b2601bd1cb8ab6edc235c0eaa

SHA512
fb2238a8ed9c9a45ddb753c3b7195f670008aac6864de73688c56d5b84d426740e16b38a17af843325884ca0fbcaee0b5608891c336fcfd6dfe83a939e8e223b

Download Submit
memory/2764-7-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2908-11-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2908-12-0x00000000004D0000-0x00000000004DE000-memory.dmp

Filesize
56KB

Download
memory/2908-15-0x00000000762C0000-0x00000000763B0000-memory.dmp

Filesize
960KB

Download
memory/2908-14-0x00000000762D0000-0x00000000762D1000-memory.dmp

Filesize
4KB

Download
memory/2908-16-0x00000000762C0000-0x00000000763B0000-memory.dmp

Filesize
960KB

Download
memory/2908-17-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2908-19-0x00000000004D0000-0x00000000004DE000-memory.dmp

Filesize
56KB

Download
memory/2908-18-0x0000000000330000-0x0000000000338000-memory.dmp

Filesize
32KB

Download
memory/2908-20-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2908-23-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2908-26-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2908-29-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2908-32-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2908-35-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2908-38-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2908-41-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2908-44-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2908-47-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads