modiloader | e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5fae

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
03-12-2024 10:41

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General

Target

e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe
Size

90KB
MD5

5d636f0a6aa4f50bbfa53c057d5aa870
SHA1

42607c2cec311b99da56d77433ac0b9fd3a93326
SHA256

e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5fae
SHA512

59efc83801bf28d35891f96758bbf5745f439d956157a5b7cc025a21699fb2c30a67f9e993eda23112b5fc1f2545d4f032f3e8d338cbf48730cd46baaf8ff3b6
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDU:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3a

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/308-257-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2528	csrsll.exe
1028	csrsll.exe
308	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2876	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe
2876	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe
2876	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe
2876	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe
2876	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.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-1-5-21-2039016743-699959520-214465309-1000\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 2360 set thread context of 2876	2360	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	30
PID 2528 set thread context of 1028	2528	csrsll.exe	36
PID 2528 set thread context of 308	2528	csrsll.exe	37

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2360-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2360-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2360-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2876-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2876-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2876-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2360-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2876-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2876-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2876-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000d000000012244-132.dat	upx
behavioral1/memory/2528-150-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2876-151-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2528-209-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/308-248-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2528-252-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2876-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1028-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/308-257-0x0000000000400000-0x0000000000414000-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	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	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe
Token: SeDebugPrivilege	1028	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2360	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe
2876	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe
2528	csrsll.exe
1028	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 2876	2360	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	30
PID 2360 wrote to memory of 2876	2360	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	30
PID 2360 wrote to memory of 2876	2360	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	30
PID 2360 wrote to memory of 2876	2360	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	30
PID 2360 wrote to memory of 2876	2360	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	30
PID 2360 wrote to memory of 2876	2360	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	30
PID 2360 wrote to memory of 2876	2360	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	30
PID 2360 wrote to memory of 2876	2360	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	30
PID 2876 wrote to memory of 2000	2876	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	31
PID 2876 wrote to memory of 2000	2876	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	31
PID 2876 wrote to memory of 2000	2876	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	31
PID 2876 wrote to memory of 2000	2876	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	31
PID 2000 wrote to memory of 592	2000	cmd.exe	33
PID 2000 wrote to memory of 592	2000	cmd.exe	33
PID 2000 wrote to memory of 592	2000	cmd.exe	33
PID 2000 wrote to memory of 592	2000	cmd.exe	33
PID 2876 wrote to memory of 2528	2876	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	34
PID 2876 wrote to memory of 2528	2876	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	34
PID 2876 wrote to memory of 2528	2876	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	34
PID 2876 wrote to memory of 2528	2876	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	34
PID 2528 wrote to memory of 1028	2528	csrsll.exe	36
PID 2528 wrote to memory of 1028	2528	csrsll.exe	36
PID 2528 wrote to memory of 1028	2528	csrsll.exe	36
PID 2528 wrote to memory of 1028	2528	csrsll.exe	36
PID 2528 wrote to memory of 1028	2528	csrsll.exe	36
PID 2528 wrote to memory of 1028	2528	csrsll.exe	36
PID 2528 wrote to memory of 1028	2528	csrsll.exe	36
PID 2528 wrote to memory of 1028	2528	csrsll.exe	36
PID 2528 wrote to memory of 308	2528	csrsll.exe	37
PID 2528 wrote to memory of 308	2528	csrsll.exe	37
PID 2528 wrote to memory of 308	2528	csrsll.exe	37
PID 2528 wrote to memory of 308	2528	csrsll.exe	37
PID 2528 wrote to memory of 308	2528	csrsll.exe	37
PID 2528 wrote to memory of 308	2528	csrsll.exe	37
PID 2528 wrote to memory of 308	2528	csrsll.exe	37
PID 2528 wrote to memory of 308	2528	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe
"C:\Users\Admin\AppData\Local\Temp\e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Users\Admin\AppData\Local\Temp\e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe
  "C:\Users\Admin\AppData\Local\Temp\e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2876
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\HVVJK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2000
  - - 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:592
- - 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:2528
  - - 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:1028
  - - 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:308

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\HVVJK.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
5fd0e77c788714fea78d363bd99850d1

SHA1
0b252e38a6aeecd0d73e5df9e7165b6d325eb806

SHA256
d97979760aab41fdda6b6b236496876e70bd70aa59e355fd1f51e1f67773c4df

SHA512
50a8f254befc8b44e855eac3d9edd7d89bb70b0702b852fd3a803337591588940ba627cf30f1508b722de62ed63a3bee18fab02b76ff757ee04440618d917e42

Download Submit
memory/308-248-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/308-257-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1028-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2360-71-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2360-99-0x0000000002480000-0x00000000024D3000-memory.dmp

Filesize
332KB

Download
memory/2360-41-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2360-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2360-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2360-79-0x00000000003A0000-0x00000000003A2000-memory.dmp

Filesize
8KB

Download
memory/2360-61-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2360-29-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2360-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2360-16-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2360-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2360-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2360-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2360-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2528-154-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2528-150-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2528-252-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2528-175-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2528-209-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2528-164-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2876-147-0x00000000025D0000-0x0000000002623000-memory.dmp

Filesize
332KB

Download
memory/2876-151-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2876-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-243-0x00000000025D0000-0x0000000002623000-memory.dmp

Filesize
332KB

Download
memory/2876-249-0x00000000025D0000-0x0000000002623000-memory.dmp

Filesize
332KB

Download
memory/2876-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads