modiloader | 925fffa0c13ed3c979cee65ed15e17156e8dac45d1778ff61ff43775a063c07c

General

Target

925fffa0c13ed3c979cee65ed15e17156e8dac45d1778ff61ff43775a063c07c.exe
Size

136KB
MD5

647e0a210ada00954782b8c8391c8156
SHA1

0d3881b7989f2ac3673d2d42b8d1170b83d0aca6
SHA256

925fffa0c13ed3c979cee65ed15e17156e8dac45d1778ff61ff43775a063c07c
SHA512

12f3fa903769e8e844864726e80ee97a57beb791b74afbe2cb5ca82a114697740d86d11820813a3b8bd460da249a6ace91da8d8e553d8b651518cb522c0f7910
SSDEEP

3072:Roy8j7VnNdrPHaSekwi+mWXaMKcE7outno9c6:h8jZ7rvaU3+mWXlKcE7oSo

Score

10^/10

modiloader evasion persistence trojan upx

Malware Config

Signatures

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

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

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

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral1/memory/1700-55-0x0000000000400000-0x000000000045C000-memory.dmp	modiloader_stage2
behavioral1/memory/1700-58-0x0000000000400000-0x000000000045C000-memory.dmp	modiloader_stage2
behavioral1/memory/1772-61-0x0000000000400000-0x000000000045C000-memory.dmp	modiloader_stage2
behavioral1/memory/1772-62-0x0000000000400000-0x000000000045C000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

pid	Process
1772	mstwain32.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1700-55-0x0000000000400000-0x000000000045C000-memory.dmp	upx
behavioral1/memory/1700-58-0x0000000000400000-0x000000000045C000-memory.dmp	upx
behavioral1/files/0x00060000000055d8-57.dat	upx
behavioral1/memory/1772-61-0x0000000000400000-0x000000000045C000-memory.dmp	upx
behavioral1/memory/1772-62-0x0000000000400000-0x000000000045C000-memory.dmp	upx

Deletes itself 1 IoCs

pid	Process
1772	mstwain32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	mstwain32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost.exe = "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	925fffa0c13ed3c979cee65ed15e17156e8dac45d1778ff61ff43775a063c07c.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	925fffa0c13ed3c979cee65ed15e17156e8dac45d1778ff61ff43775a063c07c.exe
File opened for modification	C:\Windows\mstwain32.exe	925fffa0c13ed3c979cee65ed15e17156e8dac45d1778ff61ff43775a063c07c.exe
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1700	925fffa0c13ed3c979cee65ed15e17156e8dac45d1778ff61ff43775a063c07c.exe
Token: SeBackupPrivilege	1072	vssvc.exe
Token: SeRestorePrivilege	1072	vssvc.exe
Token: SeAuditPrivilege	1072	vssvc.exe
Token: SeDebugPrivilege	1772	mstwain32.exe
Token: SeDebugPrivilege	1772	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1772	mstwain32.exe
1772	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 1772	1700	925fffa0c13ed3c979cee65ed15e17156e8dac45d1778ff61ff43775a063c07c.exe	31
PID 1700 wrote to memory of 1772	1700	925fffa0c13ed3c979cee65ed15e17156e8dac45d1778ff61ff43775a063c07c.exe	31
PID 1700 wrote to memory of 1772	1700	925fffa0c13ed3c979cee65ed15e17156e8dac45d1778ff61ff43775a063c07c.exe	31
PID 1700 wrote to memory of 1772	1700	925fffa0c13ed3c979cee65ed15e17156e8dac45d1778ff61ff43775a063c07c.exe	31

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\925fffa0c13ed3c979cee65ed15e17156e8dac45d1778ff61ff43775a063c07c.exe
"C:\Users\Admin\AppData\Local\Temp\925fffa0c13ed3c979cee65ed15e17156e8dac45d1778ff61ff43775a063c07c.exe"
1⤵
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Windows\mstwain32.exe
  "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\925fffa0c13ed3c979cee65ed15e17156e8dac45d1778ff61ff43775a063c07c.exe"
  2⤵
  - UAC bypass
  - Executes dropped EXE
  - Deletes itself
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - System policy modification
  PID:1772

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1072

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Bypass User Account Control

1

T1088

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\mstwain32.exe

Filesize
136KB

MD5
647e0a210ada00954782b8c8391c8156

SHA1
0d3881b7989f2ac3673d2d42b8d1170b83d0aca6

SHA256
925fffa0c13ed3c979cee65ed15e17156e8dac45d1778ff61ff43775a063c07c

SHA512
12f3fa903769e8e844864726e80ee97a57beb791b74afbe2cb5ca82a114697740d86d11820813a3b8bd460da249a6ace91da8d8e553d8b651518cb522c0f7910

Download Submit
memory/1700-54-0x0000000076BA1000-0x0000000076BA3000-memory.dmp

Filesize
8KB

Download
memory/1700-55-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1700-58-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1772-60-0x00000000004F0000-0x00000000004FE000-memory.dmp

Filesize
56KB

Download
memory/1772-61-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1772-62-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads