modiloader | 8e40dda6a4e617ed734ade767f8e2137e9c13010844f168140a2c70333e32c81

General

Target

d4a573ac6355f21ae7033ddf26226b67_JaffaCakes118.exe
Size

663KB
MD5

d4a573ac6355f21ae7033ddf26226b67
SHA1

335f7be023a20e8adccaa72cc1dcc24c340d1e67
SHA256

8e40dda6a4e617ed734ade767f8e2137e9c13010844f168140a2c70333e32c81
SHA512

385c8d9fb8211d0e42dd24431f5043f91b353079e8a7f3bdb5080dcd474c2c0e8c42d2a5913b0893a7786c327cdd260f5ff26b6d2e8c828319cd30911e99a25b
SSDEEP

12288:TqBT5cyqc+BPpihCLCo4PavYQTwUfhkDMyOIx:TqBTalLjvwUfhkAyOIx

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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe ZReload.scr"	csrss.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "2"	csrss.exe

ModiLoader Second Stage 13 IoCs

resource	yara_rule
behavioral1/memory/2572-0-0x0000000013140000-0x00000000131EC400-memory.dmp	modiloader_stage2
behavioral1/files/0x000b000000012261-4.dat	modiloader_stage2
behavioral1/memory/2924-8-0x0000000013140000-0x00000000131EC400-memory.dmp	modiloader_stage2
behavioral1/memory/2572-5-0x0000000003210000-0x00000000032BD000-memory.dmp	modiloader_stage2
behavioral1/memory/2572-10-0x0000000013140000-0x00000000131EC400-memory.dmp	modiloader_stage2
behavioral1/files/0x0008000000018afc-16.dat	modiloader_stage2
behavioral1/files/0x002c000000018710-19.dat	modiloader_stage2
behavioral1/memory/2924-31-0x0000000013140000-0x00000000131EC400-memory.dmp	modiloader_stage2
behavioral1/files/0x0007000000018b3e-34.dat	modiloader_stage2
behavioral1/memory/2924-47-0x00000000002A0000-0x00000000002A9000-memory.dmp	modiloader_stage2
behavioral1/memory/2924-46-0x0000000000280000-0x000000000028A000-memory.dmp	modiloader_stage2
behavioral1/memory/2924-204-0x0000000013140000-0x00000000131EC400-memory.dmp	modiloader_stage2
behavioral1/memory/2924-228-0x0000000013140000-0x00000000131EC400-memory.dmp	modiloader_stage2

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\slogs.sys	csrss.exe

Executes dropped EXE 1 IoCs

pid	Process
2924	csrss.exe

Loads dropped DLL 2 IoCs

pid	Process
2924	csrss.exe
2924	csrss.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rlog.dllx	csrss.exe
File created	C:\Windows\SysWOW64\Fhide.dll	csrss.exe
File opened for modification	C:\Windows\SysWOW64\ZReload.scr	csrss.exe
File opened for modification	C:\Windows\SysWOW64\Fhide.dll	csrss.exe
File created	C:\Windows\SysWOW64\ZReload.scrx	csrss.exe
File created	C:\Windows\SysWOW64\Zreload.scr	csrss.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\csrss.exe	cmd.exe
File opened for modification	C:\Windows\csrss.exe	csrss.exe
File created	C:\Windows\csrss.exe	cmd.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 3 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d4a573ac6355f21ae7033ddf26226b67_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2924	csrss.exe
2924	csrss.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2572 wrote to memory of 2900	2572	d4a573ac6355f21ae7033ddf26226b67_JaffaCakes118.exe	30
PID 2572 wrote to memory of 2900	2572	d4a573ac6355f21ae7033ddf26226b67_JaffaCakes118.exe	30
PID 2572 wrote to memory of 2900	2572	d4a573ac6355f21ae7033ddf26226b67_JaffaCakes118.exe	30
PID 2572 wrote to memory of 2900	2572	d4a573ac6355f21ae7033ddf26226b67_JaffaCakes118.exe	30
PID 2572 wrote to memory of 2924	2572	d4a573ac6355f21ae7033ddf26226b67_JaffaCakes118.exe	32
PID 2572 wrote to memory of 2924	2572	d4a573ac6355f21ae7033ddf26226b67_JaffaCakes118.exe	32
PID 2572 wrote to memory of 2924	2572	d4a573ac6355f21ae7033ddf26226b67_JaffaCakes118.exe	32
PID 2572 wrote to memory of 2924	2572	d4a573ac6355f21ae7033ddf26226b67_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\d4a573ac6355f21ae7033ddf26226b67_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d4a573ac6355f21ae7033ddf26226b67_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2572
- C:\Windows\SysWOW64\cmd.exe
  cmd /c copy "C:\Users\Admin\AppData\Local\Temp\d4a573ac6355f21ae7033ddf26226b67_JaffaCakes118.exe" "C:\Windows\csrss.exe"
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:2900
- C:\Windows\csrss.exe
  "C:\Windows\csrss.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Modifies visiblity of hidden/system files in Explorer
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2924

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Hide Artifacts

1

T1564

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

System Information Discovery

1

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\SysWOW64\Zreload.scr

Filesize
18KB

MD5
8cfb6b02ab6a839656eae2d2af218d39

SHA1
6f95718d8575871255dde12a801ec9638945f84e

SHA256
794a54e567f644324ee897e7dfd6efe003e21741377ba4d2c57bd4e8afc1b866

SHA512
cbfc0068a8f22540bb20f1fc9bd300019dc65b295edbe92bc93c9f9641c8f8e99e047dc0e5e28acb3a82b9ef093fe729f3a97d8fe3d24e63792336af068edd04

Download Submit
C:\Windows\csrss.exe

Filesize
663KB

MD5
d4a573ac6355f21ae7033ddf26226b67

SHA1
335f7be023a20e8adccaa72cc1dcc24c340d1e67

SHA256
8e40dda6a4e617ed734ade767f8e2137e9c13010844f168140a2c70333e32c81

SHA512
385c8d9fb8211d0e42dd24431f5043f91b353079e8a7f3bdb5080dcd474c2c0e8c42d2a5913b0893a7786c327cdd260f5ff26b6d2e8c828319cd30911e99a25b

Download Submit
\Windows\SysWOW64\Fhide.dll

Filesize
15KB

MD5
ed7838fe286979e4d8444a8741fce92f

SHA1
e231bea3093a4b01d23b7a5150b60595e71a4ffc

SHA256
1fdb0e12d7202dadba4c08687ecb7bf5ddf324dd673d04293c7963b2264291b0

SHA512
ed35df305fb4d56968aa42844ce7d88ba74c6c92f18f594b9c2bd3f664fcdce182be5bb899d38a5fd03c9efa6c21f32297ed4cda7d18ec722dbdc849fd8213f2

Download Submit
\Windows\SysWOW64\drivers\slogs.sys

Filesize
20KB

MD5
12280391c6e096f9e204ccce3d8f711b

SHA1
e4c1afeacbbb743f826377a3e59b6fa698093197

SHA256
9ae3003a3292288c6d174f82279fb32985a83d21c2fee679a70a20b61e26ef52

SHA512
97940705da06007d54dc6d293d766cbd2a27bde7a2675695d0c1be6d3944ab10398c25dca190142f5826d67594ef0dec2553d27f7847b79e7d18e34b2161f9fe

Download Submit
memory/2572-6-0x0000000003210000-0x00000000032BD000-memory.dmp

Filesize
692KB

Download
memory/2572-5-0x0000000003210000-0x00000000032BD000-memory.dmp

Filesize
692KB

Download
memory/2572-10-0x0000000013140000-0x00000000131EC400-memory.dmp

Filesize
689KB

Download
memory/2572-1-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2572-0-0x0000000013140000-0x00000000131EC400-memory.dmp

Filesize
689KB

Download
memory/2924-21-0x00000000770EF000-0x00000000770F0000-memory.dmp

Filesize
4KB

Download
memory/2924-8-0x0000000013140000-0x00000000131EC400-memory.dmp

Filesize
689KB

Download
memory/2924-31-0x0000000013140000-0x00000000131EC400-memory.dmp

Filesize
689KB

Download
memory/2924-11-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2924-36-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2924-47-0x00000000002A0000-0x00000000002A9000-memory.dmp

Filesize
36KB

Download
memory/2924-46-0x0000000000280000-0x000000000028A000-memory.dmp

Filesize
40KB

Download
memory/2924-204-0x0000000013140000-0x00000000131EC400-memory.dmp

Filesize
689KB

Download
memory/2924-228-0x0000000013140000-0x00000000131EC400-memory.dmp

Filesize
689KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads