modiloader | 4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7

Analysis

max time kernel
149s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-01-2025 01:30

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General

Target

4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
Size

90KB
MD5

e613154a8d8a88041bf1288813824865
SHA1

cd22f88f30185603362e15d66d05bd11a26c8634
SHA256

4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7
SHA512

c7fae80f114d4b310ea9d1de6a78fbb56e59f2a2a626e58a5dea941e6c558e172377b486ea7bbe36a4be6b49f4e9a174122bee1938bea4df56f76f2ed3b3d33a
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDv:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE31

Score

10^/10

modiloader discovery 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

ModiLoader Second Stage 1 IoCs

resource	yara_rule
behavioral1/memory/1660-263-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1736	csrsll.exe
1832	csrsll.exe
1660	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2756	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
2756	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
2756	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
2756	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
2756	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1508 set thread context of 2756	1508	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	31
PID 1736 set thread context of 1832	1736	csrsll.exe	36
PID 1736 set thread context of 1660	1736	csrsll.exe	37

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1508-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1508-91-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1508-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2756-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2756-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2756-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1508-94-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1508-79-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1508-32-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2756-109-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2756-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2756-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1508-103-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x0005000000004ed7-134.dat	upx
behavioral1/memory/2756-136-0x0000000003240000-0x0000000003293000-memory.dmp	upx
behavioral1/memory/2756-155-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1736-215-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1736-251-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2756-254-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1660-249-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1832-260-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1660-263-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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 7 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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe
Token: SeDebugPrivilege	1832	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1508	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
2756	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
1736	csrsll.exe
1832	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 2756	1508	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	31
PID 1508 wrote to memory of 2756	1508	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	31
PID 1508 wrote to memory of 2756	1508	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	31
PID 1508 wrote to memory of 2756	1508	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	31
PID 1508 wrote to memory of 2756	1508	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	31
PID 1508 wrote to memory of 2756	1508	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	31
PID 1508 wrote to memory of 2756	1508	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	31
PID 1508 wrote to memory of 2756	1508	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	31
PID 2756 wrote to memory of 2064	2756	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	32
PID 2756 wrote to memory of 2064	2756	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	32
PID 2756 wrote to memory of 2064	2756	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	32
PID 2756 wrote to memory of 2064	2756	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	32
PID 2064 wrote to memory of 584	2064	cmd.exe	34
PID 2064 wrote to memory of 584	2064	cmd.exe	34
PID 2064 wrote to memory of 584	2064	cmd.exe	34
PID 2064 wrote to memory of 584	2064	cmd.exe	34
PID 2756 wrote to memory of 1736	2756	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	35
PID 2756 wrote to memory of 1736	2756	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	35
PID 2756 wrote to memory of 1736	2756	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	35
PID 2756 wrote to memory of 1736	2756	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	35
PID 1736 wrote to memory of 1832	1736	csrsll.exe	36
PID 1736 wrote to memory of 1832	1736	csrsll.exe	36
PID 1736 wrote to memory of 1832	1736	csrsll.exe	36
PID 1736 wrote to memory of 1832	1736	csrsll.exe	36
PID 1736 wrote to memory of 1832	1736	csrsll.exe	36
PID 1736 wrote to memory of 1832	1736	csrsll.exe	36
PID 1736 wrote to memory of 1832	1736	csrsll.exe	36
PID 1736 wrote to memory of 1832	1736	csrsll.exe	36
PID 1736 wrote to memory of 1660	1736	csrsll.exe	37
PID 1736 wrote to memory of 1660	1736	csrsll.exe	37
PID 1736 wrote to memory of 1660	1736	csrsll.exe	37
PID 1736 wrote to memory of 1660	1736	csrsll.exe	37
PID 1736 wrote to memory of 1660	1736	csrsll.exe	37
PID 1736 wrote to memory of 1660	1736	csrsll.exe	37
PID 1736 wrote to memory of 1660	1736	csrsll.exe	37
PID 1736 wrote to memory of 1660	1736	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
"C:\Users\Admin\AppData\Local\Temp\4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1508
- C:\Users\Admin\AppData\Local\Temp\4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
  "C:\Users\Admin\AppData\Local\Temp\4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2756
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\RWIFJ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2064
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:584
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1736
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1832
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:1660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RWIFJ.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

Filesize
90KB

MD5
bab345f687970961f73300b845b9b339

SHA1
d4f705d37364e3017a6784c35467159f909c9ce2

SHA256
a44b3b4a095bc97263f8cbce2c04184469b1bf3ab6d05e00c2ca3225971b8234

SHA512
226708685989918f3bb618eb12910f28c2d818c1fe103cb2b4826aed6244d3c3cf36da9814ef4afb9dfd3e2b6378e6fe4ceccdeb513edd364c724c599500f639

Download Submit
memory/1508-32-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1508-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1508-79-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1508-91-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1508-71-0x00000000024C0000-0x00000000024C1000-memory.dmp

Filesize
4KB

Download
memory/1508-3-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/1508-19-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1508-61-0x00000000005A0000-0x00000000005A1000-memory.dmp

Filesize
4KB

Download
memory/1508-103-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1508-94-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1508-108-0x0000000002760000-0x00000000027B3000-memory.dmp

Filesize
332KB

Download
memory/1508-80-0x00000000024E0000-0x00000000024E2000-memory.dmp

Filesize
8KB

Download
memory/1508-5-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/1508-15-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/1508-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1508-41-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1508-28-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/1660-249-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1660-263-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1736-158-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1736-168-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/1736-215-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1736-179-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/1736-251-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1832-260-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-109-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-150-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2756-149-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2756-136-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2756-155-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-151-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2756-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-242-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2756-244-0x0000000003240000-0x0000000003293000-memory.dmp

Filesize
332KB

Download
memory/2756-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-254-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2756-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads