modiloader | e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
04-12-2024 03:16

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General

Target

e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe
Size

90KB
MD5

ed4e47640b4e9ba3f999ff71dba397a0
SHA1

fd228593c717a9e0c78d083b88e317f0ef1087cf
SHA256

e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644
SHA512

ce62d97b810a2210d4c866385f5f2d71c9e8fb6f3ecc9317440595ae8b38fdeca9ff86019924c564e6449e8974eb06fff5a09354d57d6863f669dbead15616d6
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDh:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3j

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/1044-260-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2132	csrsll.exe
704	csrsll.exe
1044	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2728	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe
2728	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe
2728	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe
2728	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe
2728	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.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-1-5-21-1163522206-1469769407-485553996-1000\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 2100 set thread context of 2728	2100	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe	31
PID 2132 set thread context of 704	2132	csrsll.exe	36
PID 2132 set thread context of 1044	2132	csrsll.exe	37

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2100-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2728-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2100-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2728-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2728-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2728-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2100-101-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2728-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2728-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2100-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x000a00000001749c-130.dat	upx
behavioral1/memory/2728-132-0x00000000035C0000-0x0000000003613000-memory.dmp	upx
behavioral1/memory/2132-150-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2728-151-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2132-217-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2132-248-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2728-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1044-254-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/704-253-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/704-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1044-260-0x0000000000400000-0x0000000000414000-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	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe
Token: SeDebugPrivilege	704	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2100	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe
2728	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe
2132	csrsll.exe
704	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2728	2100	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe	31
PID 2100 wrote to memory of 2728	2100	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe	31
PID 2100 wrote to memory of 2728	2100	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe	31
PID 2100 wrote to memory of 2728	2100	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe	31
PID 2100 wrote to memory of 2728	2100	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe	31
PID 2100 wrote to memory of 2728	2100	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe	31
PID 2100 wrote to memory of 2728	2100	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe	31
PID 2100 wrote to memory of 2728	2100	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe	31
PID 2728 wrote to memory of 1924	2728	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe	32
PID 2728 wrote to memory of 1924	2728	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe	32
PID 2728 wrote to memory of 1924	2728	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe	32
PID 2728 wrote to memory of 1924	2728	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe	32
PID 1924 wrote to memory of 1572	1924	cmd.exe	34
PID 1924 wrote to memory of 1572	1924	cmd.exe	34
PID 1924 wrote to memory of 1572	1924	cmd.exe	34
PID 1924 wrote to memory of 1572	1924	cmd.exe	34
PID 2728 wrote to memory of 2132	2728	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe	35
PID 2728 wrote to memory of 2132	2728	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe	35
PID 2728 wrote to memory of 2132	2728	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe	35
PID 2728 wrote to memory of 2132	2728	e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe	35
PID 2132 wrote to memory of 704	2132	csrsll.exe	36
PID 2132 wrote to memory of 704	2132	csrsll.exe	36
PID 2132 wrote to memory of 704	2132	csrsll.exe	36
PID 2132 wrote to memory of 704	2132	csrsll.exe	36
PID 2132 wrote to memory of 704	2132	csrsll.exe	36
PID 2132 wrote to memory of 704	2132	csrsll.exe	36
PID 2132 wrote to memory of 704	2132	csrsll.exe	36
PID 2132 wrote to memory of 704	2132	csrsll.exe	36
PID 2132 wrote to memory of 1044	2132	csrsll.exe	37
PID 2132 wrote to memory of 1044	2132	csrsll.exe	37
PID 2132 wrote to memory of 1044	2132	csrsll.exe	37
PID 2132 wrote to memory of 1044	2132	csrsll.exe	37
PID 2132 wrote to memory of 1044	2132	csrsll.exe	37
PID 2132 wrote to memory of 1044	2132	csrsll.exe	37
PID 2132 wrote to memory of 1044	2132	csrsll.exe	37
PID 2132 wrote to memory of 1044	2132	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe
"C:\Users\Admin\AppData\Local\Temp\e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Users\Admin\AppData\Local\Temp\e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe
  "C:\Users\Admin\AppData\Local\Temp\e4cf3fc0644d1297cbf9f30db8f971cf9f37219843a2a74844f71f8cac35a644N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2728
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\PUQER.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1924
  - - 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:1572
- - 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:2132
  - - 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:704
  - - 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:1044

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\PUQER.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
052cade232d0ad6867157a8d50e8e695

SHA1
845b32db0418b38520b8c074ad5365ed1fc40525

SHA256
6247bc811f9bc0de12b46d86a60f3608e7ec397a407243168c7ba206c013b71f

SHA512
1266cb66e30b13340767e628d37a8a96dcb9964f36f1bba5127183871da6300402482258c6873f267ef6526b7f014cb07d9990b83ca4992ca05ade7f3c1f4f59

Download Submit
memory/704-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/704-253-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1044-254-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1044-260-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2100-79-0x00000000004F0000-0x00000000004F2000-memory.dmp

Filesize
8KB

Download
memory/2100-101-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-41-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2100-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-71-0x00000000004D0000-0x00000000004D1000-memory.dmp

Filesize
4KB

Download
memory/2100-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-15-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/2100-61-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2100-99-0x0000000001D60000-0x0000000001DB3000-memory.dmp

Filesize
332KB

Download
memory/2100-29-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2100-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2100-5-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2100-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2100-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2132-217-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2132-150-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2132-248-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2132-154-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2132-164-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/2132-175-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2728-212-0x00000000035C0000-0x0000000003613000-memory.dmp

Filesize
332KB

Download
memory/2728-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2728-151-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2728-146-0x00000000035C0000-0x0000000003613000-memory.dmp

Filesize
332KB

Download
memory/2728-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2728-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2728-209-0x00000000035C0000-0x0000000003613000-memory.dmp

Filesize
332KB

Download
memory/2728-132-0x00000000035C0000-0x0000000003613000-memory.dmp

Filesize
332KB

Download
memory/2728-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2728-145-0x00000000035C0000-0x0000000003613000-memory.dmp

Filesize
332KB

Download
memory/2728-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2728-255-0x00000000035C0000-0x0000000003613000-memory.dmp

Filesize
332KB

Download
memory/2728-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2728-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2728-252-0x00000000035C0000-0x0000000003613000-memory.dmp

Filesize
332KB

Download
memory/2728-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2728-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads