modiloader | 38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4

Analysis

max time kernel
148s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/12/2024, 06:32

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General

Target

38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe
Size

90KB
MD5

29158863a6629d66282e0aad9987b6a3
SHA1

d3440b2c02f601dc2995ef2f452314eb3a9b36b0
SHA256

38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4
SHA512

7392d787f1e287307619b34a17a0db40e3a9ce062b20d853279e2f6b82c0b33bfd38bc3d94eaa128c8712df8db534184977eeb4a4d0b0d76d1f6150c411d4123
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDQ:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE36

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 2 IoCs

resource	yara_rule
behavioral1/memory/2396-252-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/2396-257-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1728	csrsll.exe
2696	csrsll.exe
2396	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2708	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe
2708	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe
2708	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe
2708	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe
2708	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.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-1-5-21-2872745919-2748461613-2989606286-1000\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 2404 set thread context of 2708	2404	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe	31
PID 1728 set thread context of 2696	1728	csrsll.exe	36
PID 1728 set thread context of 2396	1728	csrsll.exe	37

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2404-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2404-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2404-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2404-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2708-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2708-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2708-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2708-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2708-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2708-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0009000000018683-129.dat	upx
behavioral1/memory/1728-148-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2708-143-0x0000000003190000-0x00000000031E3000-memory.dmp	upx
behavioral1/memory/2708-151-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1728-218-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2396-252-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1728-249-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2708-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2696-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2396-257-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe
Token: SeDebugPrivilege	2696	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2404	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe
2708	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe
1728	csrsll.exe
2696	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 2708	2404	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe	31
PID 2404 wrote to memory of 2708	2404	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe	31
PID 2404 wrote to memory of 2708	2404	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe	31
PID 2404 wrote to memory of 2708	2404	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe	31
PID 2404 wrote to memory of 2708	2404	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe	31
PID 2404 wrote to memory of 2708	2404	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe	31
PID 2404 wrote to memory of 2708	2404	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe	31
PID 2404 wrote to memory of 2708	2404	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe	31
PID 2708 wrote to memory of 1104	2708	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe	32
PID 2708 wrote to memory of 1104	2708	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe	32
PID 2708 wrote to memory of 1104	2708	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe	32
PID 2708 wrote to memory of 1104	2708	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe	32
PID 1104 wrote to memory of 2164	1104	cmd.exe	34
PID 1104 wrote to memory of 2164	1104	cmd.exe	34
PID 1104 wrote to memory of 2164	1104	cmd.exe	34
PID 1104 wrote to memory of 2164	1104	cmd.exe	34
PID 2708 wrote to memory of 1728	2708	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe	35
PID 2708 wrote to memory of 1728	2708	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe	35
PID 2708 wrote to memory of 1728	2708	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe	35
PID 2708 wrote to memory of 1728	2708	38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe	35
PID 1728 wrote to memory of 2696	1728	csrsll.exe	36
PID 1728 wrote to memory of 2696	1728	csrsll.exe	36
PID 1728 wrote to memory of 2696	1728	csrsll.exe	36
PID 1728 wrote to memory of 2696	1728	csrsll.exe	36
PID 1728 wrote to memory of 2696	1728	csrsll.exe	36
PID 1728 wrote to memory of 2696	1728	csrsll.exe	36
PID 1728 wrote to memory of 2696	1728	csrsll.exe	36
PID 1728 wrote to memory of 2696	1728	csrsll.exe	36
PID 1728 wrote to memory of 2396	1728	csrsll.exe	37
PID 1728 wrote to memory of 2396	1728	csrsll.exe	37
PID 1728 wrote to memory of 2396	1728	csrsll.exe	37
PID 1728 wrote to memory of 2396	1728	csrsll.exe	37
PID 1728 wrote to memory of 2396	1728	csrsll.exe	37
PID 1728 wrote to memory of 2396	1728	csrsll.exe	37
PID 1728 wrote to memory of 2396	1728	csrsll.exe	37
PID 1728 wrote to memory of 2396	1728	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe
"C:\Users\Admin\AppData\Local\Temp\38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Users\Admin\AppData\Local\Temp\38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe
  "C:\Users\Admin\AppData\Local\Temp\38fe8baeea5c18cf66ea96cb95df89c9e13c35074d34aa00cf29862d328953d4.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2708
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\IHUBK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1104
  - - 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:2164
- - 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:1728
  - - 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:2696
  - - 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:2396

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\IHUBK.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
08e25d09baee032dda62b8813c11ed40

SHA1
41d4a9b6c8432f8b8168e2d4c628fda6e2b3bb3f

SHA256
effefff1887cb20abfb1722595001883842cc6a1fa1223f4a0deef6f8035956d

SHA512
e961d49c228be4dadb21f6ed8bd2c0ed8e9a3954d78b1203f8b80d4f45de966a247b62f6692c52294d42241132a12e3109df0a5f6a7293d0cb384d155f365783

Download Submit
memory/1728-249-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1728-155-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1728-165-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1728-176-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1728-218-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1728-148-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2396-257-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2396-252-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2404-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2404-61-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/2404-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2404-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2404-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2404-15-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2404-5-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2404-79-0x0000000000530000-0x0000000000532000-memory.dmp

Filesize
8KB

Download
memory/2404-29-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2404-71-0x0000000000510000-0x0000000000511000-memory.dmp

Filesize
4KB

Download
memory/2404-41-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download
memory/2404-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2404-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2696-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2708-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2708-210-0x0000000003190000-0x00000000031E3000-memory.dmp

Filesize
332KB

Download
memory/2708-144-0x0000000003190000-0x00000000031E3000-memory.dmp

Filesize
332KB

Download
memory/2708-143-0x0000000003190000-0x00000000031E3000-memory.dmp

Filesize
332KB

Download
memory/2708-151-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2708-152-0x0000000003190000-0x00000000031E3000-memory.dmp

Filesize
332KB

Download
memory/2708-146-0x0000000003190000-0x00000000031E3000-memory.dmp

Filesize
332KB

Download
memory/2708-145-0x0000000003190000-0x00000000031E3000-memory.dmp

Filesize
332KB

Download
memory/2708-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2708-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2708-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2708-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2708-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2708-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2708-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2708-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads