modiloader | 8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76

Analysis

max time kernel
119s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/12/2024, 00:57

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General

Target

8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe
Size

300KB
MD5

fcd439495e41589b112ec0fdc23dd260
SHA1

5c870d4cc86f6a773769ec4fa663bfe599df8665
SHA256

8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76
SHA512

f1548bb5b549d9b49fae7d56be77466e5a135cdb083ec26af7ed1de0a02b8de8c21c8a3b934994bc06af76b2b59ea10faf5d8b0ea36303d4c3a7bffaf402cf0c
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38GG:UsxD5cwohO+O1sVG0/pZ6iPC8I

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/1864-245-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/1864-250-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1996	csrsll.exe
3000	csrsll.exe
1864	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2604	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe
2604	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe
2604	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe
2604	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe
2604	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.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-1-5-21-3063565911-2056067323-3330884624-1000\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 1736 set thread context of 2604	1736	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe	31
PID 1996 set thread context of 3000	1996	csrsll.exe	36
PID 1996 set thread context of 1864	1996	csrsll.exe	37

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2604-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1864-245-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/3000-244-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-243-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-248-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3000-249-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1864-250-0x0000000000400000-0x0000000000414000-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	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.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	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe
Token: SeDebugPrivilege	3000	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1736	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe
2604	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe
1996	csrsll.exe
3000	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 2604	1736	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe	31
PID 1736 wrote to memory of 2604	1736	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe	31
PID 1736 wrote to memory of 2604	1736	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe	31
PID 1736 wrote to memory of 2604	1736	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe	31
PID 1736 wrote to memory of 2604	1736	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe	31
PID 1736 wrote to memory of 2604	1736	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe	31
PID 1736 wrote to memory of 2604	1736	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe	31
PID 1736 wrote to memory of 2604	1736	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe	31
PID 2604 wrote to memory of 1628	2604	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe	32
PID 2604 wrote to memory of 1628	2604	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe	32
PID 2604 wrote to memory of 1628	2604	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe	32
PID 2604 wrote to memory of 1628	2604	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe	32
PID 1628 wrote to memory of 2596	1628	cmd.exe	34
PID 1628 wrote to memory of 2596	1628	cmd.exe	34
PID 1628 wrote to memory of 2596	1628	cmd.exe	34
PID 1628 wrote to memory of 2596	1628	cmd.exe	34
PID 2604 wrote to memory of 1996	2604	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe	35
PID 2604 wrote to memory of 1996	2604	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe	35
PID 2604 wrote to memory of 1996	2604	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe	35
PID 2604 wrote to memory of 1996	2604	8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe	35
PID 1996 wrote to memory of 3000	1996	csrsll.exe	36
PID 1996 wrote to memory of 3000	1996	csrsll.exe	36
PID 1996 wrote to memory of 3000	1996	csrsll.exe	36
PID 1996 wrote to memory of 3000	1996	csrsll.exe	36
PID 1996 wrote to memory of 3000	1996	csrsll.exe	36
PID 1996 wrote to memory of 3000	1996	csrsll.exe	36
PID 1996 wrote to memory of 3000	1996	csrsll.exe	36
PID 1996 wrote to memory of 3000	1996	csrsll.exe	36
PID 1996 wrote to memory of 1864	1996	csrsll.exe	37
PID 1996 wrote to memory of 1864	1996	csrsll.exe	37
PID 1996 wrote to memory of 1864	1996	csrsll.exe	37
PID 1996 wrote to memory of 1864	1996	csrsll.exe	37
PID 1996 wrote to memory of 1864	1996	csrsll.exe	37
PID 1996 wrote to memory of 1864	1996	csrsll.exe	37
PID 1996 wrote to memory of 1864	1996	csrsll.exe	37
PID 1996 wrote to memory of 1864	1996	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe
"C:\Users\Admin\AppData\Local\Temp\8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Users\Admin\AppData\Local\Temp\8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe
  "C:\Users\Admin\AppData\Local\Temp\8d7f44884ac78b65e8929b71d7b7b0003fa3dd248bd03877b64432c7023b2d76N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2604
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\PUGEI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1628
  - - 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:2596
- - 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:1996
  - - 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:3000
  - - 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:1864

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\PUGEI.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
ddefa291c25bdcdc095f28b3c0b15efa

SHA1
0939732eced42281cc9a4d50a4fd54d5c3eb6eb3

SHA256
2baab34cc51ee66cb508e7e52a69a049fecf703c99c4abd2567b35b5d4ad70d2

SHA512
49467a71cb1fe34c0e846ba9a62b57b6488c958389fe7155f6c9b0445086e0c3c26ce58ae63ed0fb689b846f17060205fa3fb739c96d5e4bda26ba94e7fa992e

Download Submit
memory/1736-88-0x00000000003C0000-0x00000000003C2000-memory.dmp

Filesize
8KB

Download
memory/1736-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1736-27-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1736-77-0x00000000003A0000-0x00000000003A2000-memory.dmp

Filesize
8KB

Download
memory/1736-89-0x00000000003D0000-0x00000000003D2000-memory.dmp

Filesize
8KB

Download
memory/1736-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1736-87-0x00000000003B0000-0x00000000003B2000-memory.dmp

Filesize
8KB

Download
memory/1736-69-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/1736-59-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/1736-39-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/1736-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1736-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1864-250-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1864-245-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1996-157-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/1996-169-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1996-147-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2604-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2604-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-243-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-248-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3000-244-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3000-249-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads