modiloader | cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4

General

Target

cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe
Size

110KB
MD5

72c9ef6268a40b8d685c8f2a2c9a973d
SHA1

2f6cc5b20e2438fdceda6724295d32d5d6fa3ebf
SHA256

cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4
SHA512

f41153c59c6c530bc787201546b0021c433e5ceb4d1dd30dd1af8d2cfc20fda81ee80d070d4f98f4e4475fdb9ca2587102ca70755be45fed052999a0c79ea3d4
SSDEEP

3072:X1+MJKrUnFYY5z1i0Nmbi5fJBN6ZI1ty+eBout:dIrPj0NmWtNKIEBoS

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 3 IoCs

resource	yara_rule
behavioral1/memory/1136-58-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral1/memory/1988-60-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral1/memory/1988-62-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

pid	Process
1988	mstwain32.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1136-58-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral1/files/0x00140000000054ab-57.dat	upx
behavioral1/memory/1988-60-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral1/memory/1988-62-0x0000000000400000-0x000000000044F000-memory.dmp	upx

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-1-5-21-2292972927-2705560509-2768824231-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	mstwain32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\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	cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.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 3 IoCs

description	ioc	Process
File created	C:\Windows\cmsetac.dll	mstwain32.exe
File created	C:\Windows\mstwain32.exe	cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.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 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1136	cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe
Token: SeDebugPrivilege	1988	mstwain32.exe
Token: SeDebugPrivilege	1988	mstwain32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1136	cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1988	mstwain32.exe
1988	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1136 wrote to memory of 1988	1136	cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe	27
PID 1136 wrote to memory of 1988	1136	cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe	27
PID 1136 wrote to memory of 1988	1136	cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe	27
PID 1136 wrote to memory of 1988	1136	cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe	27

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\cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe
"C:\Users\Admin\AppData\Local\Temp\cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe"
1⤵
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1136
- 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
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - System policy modification
  PID:1988

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
110KB

MD5
72c9ef6268a40b8d685c8f2a2c9a973d

SHA1
2f6cc5b20e2438fdceda6724295d32d5d6fa3ebf

SHA256
cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4

SHA512
f41153c59c6c530bc787201546b0021c433e5ceb4d1dd30dd1af8d2cfc20fda81ee80d070d4f98f4e4475fdb9ca2587102ca70755be45fed052999a0c79ea3d4

Download Submit
memory/1136-54-0x0000000075F51000-0x0000000075F53000-memory.dmp

Filesize
8KB

Download
memory/1136-55-0x00000000741C1000-0x00000000741C3000-memory.dmp

Filesize
8KB

Download
memory/1136-58-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1988-60-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1988-61-0x00000000003D0000-0x00000000003DE000-memory.dmp

Filesize
56KB

Download
memory/1988-62-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads