modiloader | 621bca9d8d0a65d7cb65182a1419d6233b2f65ee98e4a893a6daf79bc742d8ae

General

Target

377ee52485d0e077268ecd3532f1fac2.exe
Size

144KB
MD5

377ee52485d0e077268ecd3532f1fac2
SHA1

953af337a4d4628d80f5b969e3b3ec1b50ecb4c2
SHA256

621bca9d8d0a65d7cb65182a1419d6233b2f65ee98e4a893a6daf79bc742d8ae
SHA512

19d1f2b05169514f060048f0936b6dcbf904ee0e74fda1efdf7506dbe0b6d9dcd457966e47a096e102401e86ef780ffccb844ad2d7f7f152d66742c434e3b972
SSDEEP

3072:qkwq35D4NWoS/5y3OdIzt4DFnEqalst98wtdOGOSwwKmaWGrVXT:bDkry54Oqp4JnE9st98wtdO8FgWGN

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

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 16 IoCs

resource	yara_rule
behavioral2/memory/3508-19-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/2004-35-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/2004-38-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/2004-39-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/2004-42-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/2004-45-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/2004-48-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/2004-51-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/2004-54-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/2004-57-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/2004-60-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/2004-63-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/2004-66-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/2004-69-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/2004-72-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/2004-75-0x0000000000400000-0x000000000044F000-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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	server.exe

Executes dropped EXE 2 IoCs

pid	Process
3508	server.exe
2004	mstwain32.exe

Loads dropped DLL 4 IoCs

pid	Process
2004	mstwain32.exe
2004	mstwain32.exe
2004	mstwain32.exe
2004	mstwain32.exe

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000d000000023170-8.dat	upx
behavioral2/memory/3508-10-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/3508-19-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/2004-35-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/2004-38-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/2004-39-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/2004-42-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/2004-45-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/2004-48-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/2004-51-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/2004-54-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/2004-57-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/2004-60-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/2004-63-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/2004-66-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/2004-69-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/2004-72-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/2004-75-0x0000000000400000-0x000000000044F000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	377ee52485d0e077268ecd3532f1fac2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\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	server.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\mstwain32.exe	server.exe
File opened for modification	C:\Windows\mstwain32.exe	server.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

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3508	server.exe
Token: SeBackupPrivilege	2388	vssvc.exe
Token: SeRestorePrivilege	2388	vssvc.exe
Token: SeAuditPrivilege	2388	vssvc.exe
Token: SeDebugPrivilege	2004	mstwain32.exe
Token: SeDebugPrivilege	2004	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2004	mstwain32.exe
2004	mstwain32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2952 wrote to memory of 3508	2952	377ee52485d0e077268ecd3532f1fac2.exe	89
PID 2952 wrote to memory of 3508	2952	377ee52485d0e077268ecd3532f1fac2.exe	89
PID 2952 wrote to memory of 3508	2952	377ee52485d0e077268ecd3532f1fac2.exe	89
PID 3508 wrote to memory of 2004	3508	server.exe	96
PID 3508 wrote to memory of 2004	3508	server.exe	96
PID 3508 wrote to memory of 2004	3508	server.exe	96

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

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\377ee52485d0e077268ecd3532f1fac2.exe
"C:\Users\Admin\AppData\Local\Temp\377ee52485d0e077268ecd3532f1fac2.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2952
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\server.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\server.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Checks whether UAC is enabled
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3508
- - C:\Windows\mstwain32.exe
    "C:\Windows\mstwain32.exe"
    3⤵
    - UAC bypass
    - Executes dropped EXE
    - Loads dropped DLL
    - 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:2004

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2388

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\server.exe

Filesize
110KB

MD5
59fa48c5c1e83cce1071d5bcb9bb948a

SHA1
8e5cfa65449aa9a5f266875be03f295ae70b2ea0

SHA256
6414db2d5611d0d213cc16c9571ab3d86b579e3d13ddb0384bf575197236b2e0

SHA512
b8e08cb3ae0e6bc85405b671d248ec84338972b05c714371fc8f540385e0f1007743993be77246ca4ca6c79cd58480847ef1f6f060703c422d98b23c874137d8

Download Submit
C:\Windows\cmsetac.dll

Filesize
33KB

MD5
529352853933b2cdd8099ae12d79aede

SHA1
a8aab4e1756c88cbb4a68e9aacd9fde3175fe0ba

SHA256
7054897d2c2af2c10d3d9aed2a1d75a385fc24eb693aa2002c7f4f4c889a3f74

SHA512
164a0aa7acded5152928ce13fdb04193d64f9aecee05f8d83cab0faa8388b7bd3a067877c74144999b36273305d1937287274fb3f7fe8fe3d1d78cfd8a43a66a

Download Submit
C:\Windows\ntdtcstp.dll

Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
memory/2004-51-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2004-54-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2004-75-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2004-72-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2004-69-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2004-66-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2004-28-0x00000000007A0000-0x00000000007A1000-memory.dmp

Filesize
4KB

Download
memory/2004-63-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2004-32-0x00000000030E0000-0x00000000030EE000-memory.dmp

Filesize
56KB

Download
memory/2004-34-0x0000000002F90000-0x0000000002F91000-memory.dmp

Filesize
4KB

Download
memory/2004-35-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2004-36-0x00000000007B0000-0x00000000007B8000-memory.dmp

Filesize
32KB

Download
memory/2004-37-0x00000000030E0000-0x00000000030EE000-memory.dmp

Filesize
56KB

Download
memory/2004-38-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2004-39-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2004-42-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2004-45-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2004-48-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2004-60-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2004-57-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2952-4-0x0000000001000000-0x00000000010572BE-memory.dmp

Filesize
348KB

Download
memory/2952-0-0x0000000001000000-0x00000000010572BE-memory.dmp

Filesize
348KB

Download
memory/2952-1-0x0000000001000000-0x00000000010572BE-memory.dmp

Filesize
348KB

Download
memory/2952-2-0x0000000001000000-0x00000000010572BE-memory.dmp

Filesize
348KB

Download
memory/2952-21-0x0000000001000000-0x00000000010572BE-memory.dmp

Filesize
348KB

Download
memory/3508-19-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3508-10-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads