modiloader | 87dd5ccc1ea753b63dcc3ee9c9d2fadd6d458125e4705d4b3b26419612d8fac3

Analysis

max time kernel
120s
max time network
27s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/09/2024, 09:59

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General

Target

17df6ab49bd95fd94f0ce934167adb60N.exe
Size

90KB
MD5

17df6ab49bd95fd94f0ce934167adb60
SHA1

beba54f22848a5c0687133c1e3bfed2cb93a3a8a
SHA256

87dd5ccc1ea753b63dcc3ee9c9d2fadd6d458125e4705d4b3b26419612d8fac3
SHA512

c61d8085782f43d85c4dbb164ffb5e050cdc10552237cb198d074dc3ceccc48d0259149fc005901f46971304d826a5e2326160e9b234a71ed12fb40d72fdedc1
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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 Second Stage 1 IoCs

resource	yara_rule
behavioral1/memory/532-260-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
3028	csrsll.exe
1752	csrsll.exe
532	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
3060	17df6ab49bd95fd94f0ce934167adb60N.exe
3060	17df6ab49bd95fd94f0ce934167adb60N.exe
3060	17df6ab49bd95fd94f0ce934167adb60N.exe
3060	17df6ab49bd95fd94f0ce934167adb60N.exe
3060	17df6ab49bd95fd94f0ce934167adb60N.exe

UPX packed file 23 IoCs

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

upx

resource	yara_rule
behavioral1/memory/468-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/468-27-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/468-25-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/468-90-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3060-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3060-96-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3060-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3060-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3060-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/468-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3060-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000b000000012233-133.dat	upx
behavioral1/memory/3060-135-0x0000000002720000-0x0000000002773000-memory.dmp	upx
behavioral1/memory/3060-148-0x0000000002720000-0x0000000002773000-memory.dmp	upx
behavioral1/memory/3028-150-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3060-153-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3028-224-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3028-215-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/532-246-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/3028-249-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3060-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1752-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/532-260-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-457978338-2990298471-2379561640-1000\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 468 set thread context of 3060	468	17df6ab49bd95fd94f0ce934167adb60N.exe	30
PID 3028 set thread context of 1752	3028	csrsll.exe	35
PID 3028 set thread context of 532	3028	csrsll.exe	36

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	reg.exe
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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	17df6ab49bd95fd94f0ce934167adb60N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	17df6ab49bd95fd94f0ce934167adb60N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe
Token: SeDebugPrivilege	1752	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
468	17df6ab49bd95fd94f0ce934167adb60N.exe
3060	17df6ab49bd95fd94f0ce934167adb60N.exe
3028	csrsll.exe
1752	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 468 wrote to memory of 3060	468	17df6ab49bd95fd94f0ce934167adb60N.exe	30
PID 468 wrote to memory of 3060	468	17df6ab49bd95fd94f0ce934167adb60N.exe	30
PID 468 wrote to memory of 3060	468	17df6ab49bd95fd94f0ce934167adb60N.exe	30
PID 468 wrote to memory of 3060	468	17df6ab49bd95fd94f0ce934167adb60N.exe	30
PID 468 wrote to memory of 3060	468	17df6ab49bd95fd94f0ce934167adb60N.exe	30
PID 468 wrote to memory of 3060	468	17df6ab49bd95fd94f0ce934167adb60N.exe	30
PID 468 wrote to memory of 3060	468	17df6ab49bd95fd94f0ce934167adb60N.exe	30
PID 468 wrote to memory of 3060	468	17df6ab49bd95fd94f0ce934167adb60N.exe	30
PID 3060 wrote to memory of 2820	3060	17df6ab49bd95fd94f0ce934167adb60N.exe	31
PID 3060 wrote to memory of 2820	3060	17df6ab49bd95fd94f0ce934167adb60N.exe	31
PID 3060 wrote to memory of 2820	3060	17df6ab49bd95fd94f0ce934167adb60N.exe	31
PID 3060 wrote to memory of 2820	3060	17df6ab49bd95fd94f0ce934167adb60N.exe	31
PID 2820 wrote to memory of 2892	2820	cmd.exe	33
PID 2820 wrote to memory of 2892	2820	cmd.exe	33
PID 2820 wrote to memory of 2892	2820	cmd.exe	33
PID 2820 wrote to memory of 2892	2820	cmd.exe	33
PID 3060 wrote to memory of 3028	3060	17df6ab49bd95fd94f0ce934167adb60N.exe	34
PID 3060 wrote to memory of 3028	3060	17df6ab49bd95fd94f0ce934167adb60N.exe	34
PID 3060 wrote to memory of 3028	3060	17df6ab49bd95fd94f0ce934167adb60N.exe	34
PID 3060 wrote to memory of 3028	3060	17df6ab49bd95fd94f0ce934167adb60N.exe	34
PID 3028 wrote to memory of 1752	3028	csrsll.exe	35
PID 3028 wrote to memory of 1752	3028	csrsll.exe	35
PID 3028 wrote to memory of 1752	3028	csrsll.exe	35
PID 3028 wrote to memory of 1752	3028	csrsll.exe	35
PID 3028 wrote to memory of 1752	3028	csrsll.exe	35
PID 3028 wrote to memory of 1752	3028	csrsll.exe	35
PID 3028 wrote to memory of 1752	3028	csrsll.exe	35
PID 3028 wrote to memory of 1752	3028	csrsll.exe	35
PID 3028 wrote to memory of 532	3028	csrsll.exe	36
PID 3028 wrote to memory of 532	3028	csrsll.exe	36
PID 3028 wrote to memory of 532	3028	csrsll.exe	36
PID 3028 wrote to memory of 532	3028	csrsll.exe	36
PID 3028 wrote to memory of 532	3028	csrsll.exe	36
PID 3028 wrote to memory of 532	3028	csrsll.exe	36
PID 3028 wrote to memory of 532	3028	csrsll.exe	36
PID 3028 wrote to memory of 532	3028	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\17df6ab49bd95fd94f0ce934167adb60N.exe
"C:\Users\Admin\AppData\Local\Temp\17df6ab49bd95fd94f0ce934167adb60N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:468
- C:\Users\Admin\AppData\Local\Temp\17df6ab49bd95fd94f0ce934167adb60N.exe
  "C:\Users\Admin\AppData\Local\Temp\17df6ab49bd95fd94f0ce934167adb60N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3060
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\YVUYL.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2820
  - - 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:2892
- - 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:3028
  - - 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:1752
  - - 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:532

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\YVUYL.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
60389dbdabcdffe97a81eda870dbae1f

SHA1
cd5e8df9ddd2d333c562e75ae6f618036ac676b9

SHA256
d83c2cba9fbda8c5aba58bcb37ce39646e7db070ad80f322847b82e1032a4828

SHA512
1e1fd2e64d9cba1aecedd4ac0dab13217106980ab48c7989d5b64f1b3a46076655f50a7117d44f4ec9738974ee5ae4e20da0222f9249247f7d0a0135fadec67f

Download Submit
memory/468-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/468-72-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/468-27-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/468-26-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/468-30-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/468-25-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/468-42-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/468-91-0x0000000002520000-0x0000000002573000-memory.dmp

Filesize
332KB

Download
memory/468-62-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/468-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/468-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/468-90-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/468-80-0x00000000003B0000-0x00000000003B2000-memory.dmp

Filesize
8KB

Download
memory/468-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/468-15-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/532-246-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/532-260-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1752-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3028-249-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3028-167-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/3028-215-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3028-178-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/3028-150-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3028-224-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3028-157-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/3060-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3060-153-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3060-148-0x0000000002720000-0x0000000002773000-memory.dmp

Filesize
332KB

Download
memory/3060-135-0x0000000002720000-0x0000000002773000-memory.dmp

Filesize
332KB

Download
memory/3060-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3060-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3060-214-0x0000000002720000-0x0000000002773000-memory.dmp

Filesize
332KB

Download
memory/3060-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3060-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3060-96-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3060-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3060-98-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3060-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads