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 01:16

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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/1908-259-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2348	csrsll.exe
948	csrsll.exe
1908	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2680	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
2680	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
2680	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
2680	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
2680	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-1-5-21-3290804112-2823094203-3137964600-1000\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 2128 set thread context of 2680	2128	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	31
PID 2348 set thread context of 948	2348	csrsll.exe	36
PID 2348 set thread context of 1908	2348	csrsll.exe	37

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2128-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2128-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2128-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2680-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2128-106-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2680-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2680-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2680-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2680-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2680-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0005000000004ed7-132.dat	upx
behavioral1/memory/2680-134-0x00000000034A0000-0x00000000034F3000-memory.dmp	upx
behavioral1/memory/2348-149-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2680-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2348-172-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1908-246-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/948-241-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2348-253-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2680-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/948-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1908-259-0x0000000000400000-0x0000000000414000-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	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe
Token: SeDebugPrivilege	948	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2128	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
2680	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
2348	csrsll.exe
948	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2680	2128	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	31
PID 2128 wrote to memory of 2680	2128	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	31
PID 2128 wrote to memory of 2680	2128	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	31
PID 2128 wrote to memory of 2680	2128	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	31
PID 2128 wrote to memory of 2680	2128	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	31
PID 2128 wrote to memory of 2680	2128	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	31
PID 2128 wrote to memory of 2680	2128	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	31
PID 2128 wrote to memory of 2680	2128	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	31
PID 2680 wrote to memory of 2796	2680	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	32
PID 2680 wrote to memory of 2796	2680	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	32
PID 2680 wrote to memory of 2796	2680	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	32
PID 2680 wrote to memory of 2796	2680	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	32
PID 2796 wrote to memory of 2924	2796	cmd.exe	34
PID 2796 wrote to memory of 2924	2796	cmd.exe	34
PID 2796 wrote to memory of 2924	2796	cmd.exe	34
PID 2796 wrote to memory of 2924	2796	cmd.exe	34
PID 2680 wrote to memory of 2348	2680	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	35
PID 2680 wrote to memory of 2348	2680	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	35
PID 2680 wrote to memory of 2348	2680	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	35
PID 2680 wrote to memory of 2348	2680	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	35
PID 2348 wrote to memory of 948	2348	csrsll.exe	36
PID 2348 wrote to memory of 948	2348	csrsll.exe	36
PID 2348 wrote to memory of 948	2348	csrsll.exe	36
PID 2348 wrote to memory of 948	2348	csrsll.exe	36
PID 2348 wrote to memory of 948	2348	csrsll.exe	36
PID 2348 wrote to memory of 948	2348	csrsll.exe	36
PID 2348 wrote to memory of 948	2348	csrsll.exe	36
PID 2348 wrote to memory of 948	2348	csrsll.exe	36
PID 2348 wrote to memory of 1908	2348	csrsll.exe	37
PID 2348 wrote to memory of 1908	2348	csrsll.exe	37
PID 2348 wrote to memory of 1908	2348	csrsll.exe	37
PID 2348 wrote to memory of 1908	2348	csrsll.exe	37
PID 2348 wrote to memory of 1908	2348	csrsll.exe	37
PID 2348 wrote to memory of 1908	2348	csrsll.exe	37
PID 2348 wrote to memory of 1908	2348	csrsll.exe	37
PID 2348 wrote to memory of 1908	2348	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:2128
- 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:2680
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\JOKLW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2796
  - - 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:2924
- - 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:2348
  - - 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:948
  - - 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:1908

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
0c07f72002c1e36a82eb0cd6ea1cb513

SHA1
f9dba6fd73bd2e60781fb9c8f29557339399d51b

SHA256
dd1ea52c54b044cc0f4e3bc308565773bde421aaaaa1ad56122822b05b98db21

SHA512
dd5f5ea232614686a9d0c48de8c67612f461df774daf67acea1e983f0905c0286d7434092dcec21839504e94ba666e5e5a2c496287317124083d05893e29437f

Download Submit
memory/948-241-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/948-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1908-259-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1908-246-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2128-106-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2128-101-0x0000000001EE0000-0x0000000001F33000-memory.dmp

Filesize
332KB

Download
memory/2128-79-0x0000000001E40000-0x0000000001E42000-memory.dmp

Filesize
8KB

Download
memory/2128-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2128-71-0x0000000001E20000-0x0000000001E21000-memory.dmp

Filesize
4KB

Download
memory/2128-41-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2128-5-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2128-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2128-3-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2128-29-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2128-15-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2128-18-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2128-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2128-61-0x0000000001E00000-0x0000000001E01000-memory.dmp

Filesize
4KB

Download
memory/2348-177-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2348-172-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2348-253-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2348-149-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2348-165-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2348-155-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2680-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2680-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2680-147-0x00000000034A0000-0x00000000034F3000-memory.dmp

Filesize
332KB

Download
memory/2680-134-0x00000000034A0000-0x00000000034F3000-memory.dmp

Filesize
332KB

Download
memory/2680-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2680-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2680-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2680-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2680-240-0x00000000034A0000-0x00000000034F3000-memory.dmp

Filesize
332KB

Download
memory/2680-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2680-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2680-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2680-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads