modiloader | 2579896a8fe3abb92904f6191969f59c60d7f6130b7fc016a9265bee95c42de9

General

Target

f36dcd436c89b05f5b3af9416db486ce_JaffaCakes118.exe
Size

132KB
MD5

f36dcd436c89b05f5b3af9416db486ce
SHA1

7faff75b67b773ad92a198705321226f6ab9acc2
SHA256

2579896a8fe3abb92904f6191969f59c60d7f6130b7fc016a9265bee95c42de9
SHA512

1ecf9ce9f29bffb6ba1d68a5d45f806ccdba5d87e11396cf6f8cc062849859dcddd616635e941b951e41840fc34910e83ead8e39bcef59af20ab063c0498aba6
SSDEEP

3072:9uFTDOaZbevDuDAJYz0sB1VQaiYMN8sebVCvTKWgm5JNm:9OuGbEFJYz0sB1Cbr+VCv2wJNm

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

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/3980-1-0x0000000000400000-0x000000000046E0D0-memory.dmp	modiloader_stage2
behavioral2/memory/3300-14-0x0000000000400000-0x000000000046E0D0-memory.dmp	modiloader_stage2
behavioral2/memory/3980-12-0x0000000000400000-0x000000000046E0D0-memory.dmp	modiloader_stage2
behavioral2/memory/3300-31-0x0000000000400000-0x000000000046E0D0-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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	f36dcd436c89b05f5b3af9416db486ce_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3300	mstwain32.exe

Executes dropped EXE 1 IoCs

pid	Process
3300	mstwain32.exe

Loads dropped DLL 4 IoCs

pid	Process
3300	mstwain32.exe
3300	mstwain32.exe
3300	mstwain32.exe
3300	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-1-5-21-355097885-2402257403-2971294179-1000\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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	f36dcd436c89b05f5b3af9416db486ce_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	mstwain32.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe
File created	C:\Windows\cmsetac.dll	mstwain32.exe
File created	C:\Windows\mstwain32.exe	f36dcd436c89b05f5b3af9416db486ce_JaffaCakes118.exe
File opened for modification	C:\Windows\mstwain32.exe	f36dcd436c89b05f5b3af9416db486ce_JaffaCakes118.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	mstwain32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f36dcd436c89b05f5b3af9416db486ce_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3980	f36dcd436c89b05f5b3af9416db486ce_JaffaCakes118.exe
Token: SeBackupPrivilege	752	vssvc.exe
Token: SeRestorePrivilege	752	vssvc.exe
Token: SeAuditPrivilege	752	vssvc.exe
Token: SeDebugPrivilege	3300	mstwain32.exe
Token: SeDebugPrivilege	3300	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3300	mstwain32.exe
3300	mstwain32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3980 wrote to memory of 3300	3980	f36dcd436c89b05f5b3af9416db486ce_JaffaCakes118.exe	85
PID 3980 wrote to memory of 3300	3980	f36dcd436c89b05f5b3af9416db486ce_JaffaCakes118.exe	85
PID 3980 wrote to memory of 3300	3980	f36dcd436c89b05f5b3af9416db486ce_JaffaCakes118.exe	85

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\f36dcd436c89b05f5b3af9416db486ce_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f36dcd436c89b05f5b3af9416db486ce_JaffaCakes118.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 WriteProcessMemory
PID:3980
- C:\Windows\mstwain32.exe
  "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\f36dcd436c89b05f5b3af9416db486ce_JaffaCakes118.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:3300

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:752

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

Replay Monitor

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Downloads

C:\Windows\cmsetac.dll

Filesize
33KB

MD5
e0278316b2fb60e3ba5d0a0d8958534a

SHA1
5b914ec660c7e9595eb87fc7e7dcd1c016b7015c

SHA256
943025d727372aeb8bca642356e8cd1569646b8369a496d67674755796393e21

SHA512
48dd8c6e6d9fdc4eba1d312d425d7814037cec5aa32ccc95db939a8f39688db2d5abd5cd7e47a3c92f7ebb5ae8e4f702bbf3e613bda31081ef547a2ad1e525e7

Download Submit
C:\Windows\mstwain32.exe

Filesize
132KB

MD5
f36dcd436c89b05f5b3af9416db486ce

SHA1
7faff75b67b773ad92a198705321226f6ab9acc2

SHA256
2579896a8fe3abb92904f6191969f59c60d7f6130b7fc016a9265bee95c42de9

SHA512
1ecf9ce9f29bffb6ba1d68a5d45f806ccdba5d87e11396cf6f8cc062849859dcddd616635e941b951e41840fc34910e83ead8e39bcef59af20ab063c0498aba6

Download Submit
C:\Windows\ntdtcstp.dll

Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
memory/3300-14-0x0000000000400000-0x000000000046E0D0-memory.dmp

Filesize
440KB

Download
memory/3300-23-0x0000000002100000-0x0000000002101000-memory.dmp

Filesize
4KB

Download
memory/3300-27-0x0000000003210000-0x000000000321E000-memory.dmp

Filesize
56KB

Download
memory/3300-30-0x00000000030C0000-0x00000000030C1000-memory.dmp

Filesize
4KB

Download
memory/3300-31-0x0000000000400000-0x000000000046E0D0-memory.dmp

Filesize
440KB

Download
memory/3300-32-0x0000000002110000-0x0000000002118000-memory.dmp

Filesize
32KB

Download
memory/3300-33-0x0000000003210000-0x000000000321E000-memory.dmp

Filesize
56KB

Download
memory/3980-11-0x00000000021C0000-0x00000000021C1000-memory.dmp

Filesize
4KB

Download
memory/3980-12-0x0000000000400000-0x000000000046E0D0-memory.dmp

Filesize
440KB

Download
memory/3980-0-0x0000000000400000-0x000000000046E0D0-memory.dmp

Filesize
440KB

Download
memory/3980-1-0x0000000000400000-0x000000000046E0D0-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads