modiloader | 049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-11-2024 22:53

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General

Target

049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe
Size

90KB
MD5

815d8af20d9ab2172d4bfac3fdecf080
SHA1

c4ab4ea20b202e6caf1bcdb79aa8a256d975058e
SHA256

049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36
SHA512

848bba160c0d68d0c7fc80fe8e75b0aa0c3bf90d28bff643ab5e7533d60d1c88ffeb6663db1a3b0c91e9569955775f12a067a47d0876e25c0e6f62f7cc735989
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 family
modiloader

ModiLoader Second Stage 1 IoCs

resource	yara_rule
behavioral1/memory/1664-260-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2220	csrsll.exe
912	csrsll.exe
1664	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
1640	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe
1640	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe
1640	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe
1640	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe
1640	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.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-1-5-21-1488793075-819845221-1497111674-1000\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 1780 set thread context of 1640	1780	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe	29
PID 2220 set thread context of 912	2220	csrsll.exe	34
PID 2220 set thread context of 1664	2220	csrsll.exe	35

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1780-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1780-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1780-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1640-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1640-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1780-90-0x0000000000670000-0x00000000006C3000-memory.dmp	upx
behavioral1/memory/1640-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1640-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1640-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1780-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1640-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1640-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0006000000010300-132.dat	upx
behavioral1/memory/1640-134-0x0000000003230000-0x0000000003283000-memory.dmp	upx
behavioral1/memory/1640-154-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2220-217-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2220-250-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1664-249-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1640-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/912-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1664-260-0x0000000000400000-0x0000000000414000-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	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	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe
Token: SeDebugPrivilege	912	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1780	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe
1640	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe
2220	csrsll.exe
912	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1780 wrote to memory of 1640	1780	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe	29
PID 1780 wrote to memory of 1640	1780	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe	29
PID 1780 wrote to memory of 1640	1780	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe	29
PID 1780 wrote to memory of 1640	1780	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe	29
PID 1780 wrote to memory of 1640	1780	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe	29
PID 1780 wrote to memory of 1640	1780	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe	29
PID 1780 wrote to memory of 1640	1780	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe	29
PID 1780 wrote to memory of 1640	1780	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe	29
PID 1640 wrote to memory of 776	1640	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe	30
PID 1640 wrote to memory of 776	1640	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe	30
PID 1640 wrote to memory of 776	1640	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe	30
PID 1640 wrote to memory of 776	1640	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe	30
PID 776 wrote to memory of 560	776	cmd.exe	32
PID 776 wrote to memory of 560	776	cmd.exe	32
PID 776 wrote to memory of 560	776	cmd.exe	32
PID 776 wrote to memory of 560	776	cmd.exe	32
PID 1640 wrote to memory of 2220	1640	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe	33
PID 1640 wrote to memory of 2220	1640	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe	33
PID 1640 wrote to memory of 2220	1640	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe	33
PID 1640 wrote to memory of 2220	1640	049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe	33
PID 2220 wrote to memory of 912	2220	csrsll.exe	34
PID 2220 wrote to memory of 912	2220	csrsll.exe	34
PID 2220 wrote to memory of 912	2220	csrsll.exe	34
PID 2220 wrote to memory of 912	2220	csrsll.exe	34
PID 2220 wrote to memory of 912	2220	csrsll.exe	34
PID 2220 wrote to memory of 912	2220	csrsll.exe	34
PID 2220 wrote to memory of 912	2220	csrsll.exe	34
PID 2220 wrote to memory of 912	2220	csrsll.exe	34
PID 2220 wrote to memory of 1664	2220	csrsll.exe	35
PID 2220 wrote to memory of 1664	2220	csrsll.exe	35
PID 2220 wrote to memory of 1664	2220	csrsll.exe	35
PID 2220 wrote to memory of 1664	2220	csrsll.exe	35
PID 2220 wrote to memory of 1664	2220	csrsll.exe	35
PID 2220 wrote to memory of 1664	2220	csrsll.exe	35
PID 2220 wrote to memory of 1664	2220	csrsll.exe	35
PID 2220 wrote to memory of 1664	2220	csrsll.exe	35

C:\Users\Admin\AppData\Local\Temp\049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe
"C:\Users\Admin\AppData\Local\Temp\049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1780
- C:\Users\Admin\AppData\Local\Temp\049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe
  "C:\Users\Admin\AppData\Local\Temp\049b4cc33b6a7019704d92840875b0783d7034a0bf4b034cdc66973c59964b36N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1640
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\PTYFG.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:776
  - - 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:560
- - 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:2220
  - - 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:912
  - - 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:1664

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\PTYFG.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
e184766fc1886771a451be5a53ef6f2d

SHA1
3e18e4683956a3babaee935082df5627283380e8

SHA256
f3d1ff60609d5564db280e7ab6289eeb6ded1e1e7ee3662d6cee88692a45590d

SHA512
ce0fa0d4b8d0f572fffbcca6fc27e201a8a76f896dc8818c2dbb3518599c1a0e28ac6b7b001a0e6d19f24cbd1ba9c44678eb302ed2292eac47f4f4b43fb38bec

Download Submit
memory/912-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1640-154-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1640-148-0x0000000003230000-0x0000000003283000-memory.dmp

Filesize
332KB

Download
memory/1640-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1640-214-0x0000000003230000-0x0000000003283000-memory.dmp

Filesize
332KB

Download
memory/1640-215-0x0000000003230000-0x0000000003283000-memory.dmp

Filesize
332KB

Download
memory/1640-216-0x0000000003230000-0x0000000003283000-memory.dmp

Filesize
332KB

Download
memory/1640-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1640-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1640-134-0x0000000003230000-0x0000000003283000-memory.dmp

Filesize
332KB

Download
memory/1640-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1640-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1640-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1640-149-0x0000000003230000-0x0000000003283000-memory.dmp

Filesize
332KB

Download
memory/1640-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1640-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1640-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1640-150-0x0000000003230000-0x0000000003283000-memory.dmp

Filesize
332KB

Download
memory/1640-147-0x0000000003230000-0x0000000003283000-memory.dmp

Filesize
332KB

Download
memory/1640-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1664-249-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1664-260-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1780-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1780-71-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/1780-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1780-90-0x0000000000670000-0x00000000006C3000-memory.dmp

Filesize
332KB

Download
memory/1780-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1780-29-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/1780-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1780-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1780-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1780-61-0x0000000000490000-0x0000000000491000-memory.dmp

Filesize
4KB

Download
memory/1780-79-0x00000000004D0000-0x00000000004D2000-memory.dmp

Filesize
8KB

Download
memory/1780-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1780-41-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1780-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2220-167-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2220-250-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2220-217-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2220-178-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2220-157-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads