modiloader | 5646ddce78f18a01104e3d979669826b6a480dd00067b359ea06590ecd259889

General

Target

5646ddce78f18a01104e3d979669826b6a480dd00067b359ea06590ecd259889.exe
Size

324KB
MD5

711ec6b819ec0fa11cec59003f147078
SHA1

55438a806c3ccc9d601c9ca017eee67b981716c6
SHA256

5646ddce78f18a01104e3d979669826b6a480dd00067b359ea06590ecd259889
SHA512

8180cf23100b2ff9a411964d208a4c37e617a0bd020c29ff7420667a18765e9b8301b5502f1a66e346830623bfcacbc136a70b358126cb1eb4e55d147b4056b1
SSDEEP

6144:QGyjnBSkuV1d4eZd88ORJIf/wTBt532GnhpcCO4oS0v6:bYnBSkuVUeZdYqwT77oSl

Score

10^/10

modiloader discovery 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
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 4 IoCs

resource	yara_rule
behavioral2/memory/2236-0-0x0000000000400000-0x0000000000453000-memory.dmp	modiloader_stage2
behavioral2/files/0x000c000000023b54-5.dat	modiloader_stage2
behavioral2/memory/2236-10-0x0000000000400000-0x0000000000453000-memory.dmp	modiloader_stage2
behavioral2/memory/396-26-0x0000000000400000-0x0000000000453000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	5646ddce78f18a01104e3d979669826b6a480dd00067b359ea06590ecd259889.exe

Deletes itself 1 IoCs

pid	Process
396	mstwain32.exe

Executes dropped EXE 1 IoCs

pid	Process
396	mstwain32.exe

Loads dropped DLL 4 IoCs

pid	Process
396	mstwain32.exe
396	mstwain32.exe
396	mstwain32.exe
396	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-1-5-21-2437139445-1151884604-3026847218-1000\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	5646ddce78f18a01104e3d979669826b6a480dd00067b359ea06590ecd259889.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

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2236-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000c000000023b54-5.dat	upx
behavioral2/memory/2236-10-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/396-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\mstwain32.exe	5646ddce78f18a01104e3d979669826b6a480dd00067b359ea06590ecd259889.exe
File opened for modification	C:\Windows\mstwain32.exe	5646ddce78f18a01104e3d979669826b6a480dd00067b359ea06590ecd259889.exe
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe
File created	C:\Windows\cmsetac.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	5646ddce78f18a01104e3d979669826b6a480dd00067b359ea06590ecd259889.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2236	5646ddce78f18a01104e3d979669826b6a480dd00067b359ea06590ecd259889.exe
Token: SeDebugPrivilege	396	mstwain32.exe
Token: SeDebugPrivilege	396	mstwain32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2236	5646ddce78f18a01104e3d979669826b6a480dd00067b359ea06590ecd259889.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
396	mstwain32.exe
396	mstwain32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 396	2236	5646ddce78f18a01104e3d979669826b6a480dd00067b359ea06590ecd259889.exe	83
PID 2236 wrote to memory of 396	2236	5646ddce78f18a01104e3d979669826b6a480dd00067b359ea06590ecd259889.exe	83
PID 2236 wrote to memory of 396	2236	5646ddce78f18a01104e3d979669826b6a480dd00067b359ea06590ecd259889.exe	83

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\5646ddce78f18a01104e3d979669826b6a480dd00067b359ea06590ecd259889.exe
"C:\Users\Admin\AppData\Local\Temp\5646ddce78f18a01104e3d979669826b6a480dd00067b359ea06590ecd259889.exe"
1⤵
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Windows\mstwain32.exe
  "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\5646ddce78f18a01104e3d979669826b6a480dd00067b359ea06590ecd259889.exe"
  2⤵
  - UAC bypass
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - 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:396

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

Query Registry

1

T1012

System Information Discovery

3

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\cmsetac.dll

Filesize
32KB

MD5
531d0db3c9964f9d62d171a3367beca5

SHA1
600d059e0323c20a43cc8271de91999747e58490

SHA256
81c09bb1cab000b86f2fa964cd7729a2896c5f5602a6172ce7d112f612e7afc1

SHA512
463625efbc9566d4713062c304a3f323d1b4a28f2bdb7867ef8bf8be8244a2e9f36102abe572136d2487aa12c835b2717ca58975fdc67ddff4d16f743c5d605e

Download Submit
C:\Windows\mstwain32.exe

Filesize
324KB

MD5
711ec6b819ec0fa11cec59003f147078

SHA1
55438a806c3ccc9d601c9ca017eee67b981716c6

SHA256
5646ddce78f18a01104e3d979669826b6a480dd00067b359ea06590ecd259889

SHA512
8180cf23100b2ff9a411964d208a4c37e617a0bd020c29ff7420667a18765e9b8301b5502f1a66e346830623bfcacbc136a70b358126cb1eb4e55d147b4056b1

Download Submit
C:\Windows\ntdtcstp.dll

Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
memory/396-18-0x0000000000840000-0x0000000000841000-memory.dmp

Filesize
4KB

Download
memory/396-22-0x00000000028F0000-0x00000000028FE000-memory.dmp

Filesize
56KB

Download
memory/396-25-0x0000000002360000-0x0000000002361000-memory.dmp

Filesize
4KB

Download
memory/396-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/396-27-0x0000000000990000-0x0000000000998000-memory.dmp

Filesize
32KB

Download
memory/396-28-0x00000000028F0000-0x00000000028FE000-memory.dmp

Filesize
56KB

Download
memory/2236-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2236-10-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads